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SPDX-License-Identifier: MIT-- SPDX-FileCopyrightText: Calvin Rose and contributorspackage.preload["fennel.repl"] = package.preload["fennel.repl"] or function(...) local _710_ = require("fennel.utils") local utils = _710_ local copy = _710_["copy"] local parser = require("fennel.parser") local compiler = require("fennel.compiler") local specials = require("fennel.specials") local view = require("fennel.view") local depth = 0 local function prompt_for(top_3f) if top_3f then return (string.rep(">", (depth + 1)) .. " ") else return (string.rep(".", (depth + 1)) .. " ") end end local function default_read_chunk(parser_state) io.write(prompt_for((0 == parser_state["stack-size"]))) io.flush() local _712_0 = io.read() if (nil ~= _712_0) then local input = _712_0 return (input .. "\n") end end local function default_on_values(xs) io.write(table.concat(xs, "\9")) return io.write("\n") end local function default_on_error(errtype, err) local function _715_() local _714_0 = errtype if (_714_0 == "Runtime") then return (compiler.traceback(tostring(err), 4) .. "\n") else local _ = _714_0 return ("%s error: %s\n"):format(errtype, tostring(err)) end end return io.write(_715_()) end local function splice_save_locals(env, lua_source, scope) local saves = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for name in pairs(env.___replLocals___) do local val_19_ = ("local %s = ___replLocals___[%q]"):format((scope.manglings[name] or name), name) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end saves = tbl_17_ end local binds = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for raw, name in pairs(scope.manglings) do local val_19_ = nil if not scope.gensyms[name] then val_19_ = ("___replLocals___[%q] = %s"):format(raw, name) else val_19_ = nil end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end binds = tbl_17_ end local gap = nil if lua_source:find("\n") then gap = "\n" else gap = " " end local function _721_() if next(saves) then return (table.concat(saves, " ") .. gap) else return "" end end local function _724_() local _722_0, _723_0 = lua_source:match("^(.*)[\n ](return .*)$") if ((nil ~= _722_0) and (nil ~= _723_0)) then local body = _722_0 local _return = _723_0 return (body .. gap .. table.concat(binds, " ") .. gap .. _return) else local _ = _722_0 return lua_source end end return (_721_() .. _724_()) end local commands = {} local function completer(env, scope, text, _3ffulltext, _from, _to) local max_items = 2000 local seen = {} local matches = {} local input_fragment = text:gsub(".*[%s)(]+", "") local stop_looking_3f = false local function add_partials(input, tbl, prefix) local scope_first_3f = ((tbl == env) or (tbl == env.___replLocals___)) local tbl_17_ = matches local i_18_ = #tbl_17_ local function _726_() if scope_first_3f then return scope.manglings else return tbl end end for k, is_mangled in utils.allpairs(_726_()) do if (max_items <= #matches) then break end local val_19_ = nil do local lookup_k = nil if scope_first_3f then lookup_k = is_mangled else lookup_k = k end if ((type(k) == "string") and (input == k:sub(0, #input)) and not seen[k] and ((":" ~= prefix:sub(-1)) or ("function" == type(tbl[lookup_k])))) then seen[k] = true val_19_ = (prefix .. k) else val_19_ = nil end end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end local function descend(input, tbl, prefix, add_matches, method_3f) local splitter = nil if method_3f then splitter = "^([^:]+):(.*)" else splitter = "^([^.]+)%.(.*)" end local head, tail = input:match(splitter) local raw_head = (scope.manglings[head] or head) if (type(tbl[raw_head]) == "table") then stop_looking_3f = true if method_3f then return add_partials(tail, tbl[raw_head], (prefix .. head .. ":")) else return add_matches(tail, tbl[raw_head], (prefix .. head)) end end end local function add_matches(input, tbl, prefix) local prefix0 = nil if prefix then prefix0 = (prefix .. ".") else prefix0 = "" end if (not input:find("%.") and input:find(":")) then return descend(input, tbl, prefix0, add_matches, true) elseif not input:find("%.") then return add_partials(input, tbl, prefix0) else return descend(input, tbl, prefix0, add_matches, false) end end do local _735_0 = tostring((_3ffulltext or text)):match("^%s*,([^%s()[%]]*)$") if (nil ~= _735_0) then local cmd_fragment = _735_0 add_partials(cmd_fragment, commands, ",") else local _ = _735_0 for _0, source in ipairs({scope.specials, scope.macros, (env.___replLocals___ or {}), env, env._G}) do if stop_looking_3f then break end add_matches(input_fragment, source) end end end return matches end local function command_3f(input) return input:match("^%s*,") end local function command_docs() local _737_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for name, f in utils.stablepairs(commands) do local val_19_ = (" ,%s - %s"):format(name, ((compiler.metadata):get(f, "fnl/docstring") or "undocumented")) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _737_ = tbl_17_ end return table.concat(_737_, "\n") end commands.help = function(_, _0, on_values) return on_values({("Welcome to Fennel.\nThis is the REPL where you can enter code to be evaluated.\nYou can also run these repl commands:\n\n" .. command_docs() .. "\n ,return FORM - Evaluate FORM and return its value to the REPL's caller.\n ,exit - Leave the repl.\n\nUse ,doc something to see descriptions for individual macros and special forms.\nValues from previous inputs are kept in *1, *2, and *3.\n\nFor more information about the language, see https://fennel-lang.org/reference")}) end do end (compiler.metadata):set(commands.help, "fnl/docstring", "Show this message.") local function reload(module_name, env, on_values, on_error) local _739_0, _740_0 = pcall(specials["load-code"]("return require(...)", env), module_name) if ((_739_0 == true) and (nil ~= _740_0)) then local old = _740_0 local _ = nil package.loaded[module_name] = nil _ = nil local new = nil do local _741_0, _742_0 = pcall(require, module_name) if ((_741_0 == true) and (nil ~= _742_0)) then local new0 = _742_0 new = new0 elseif (true and (nil ~= _742_0)) then local _0 = _741_0 local msg = _742_0 on_error("Repl", msg) new = old else new = nil end end specials["macro-loaded"][module_name] = nil if ((type(old) == "table") and (type(new) == "table")) then for k, v in pairs(new) do old[k] = v end for k in pairs(old) do if (nil == new[k]) then old[k] = nil end end package.loaded[module_name] = old end return on_values({"ok"}) elseif ((_739_0 == false) and (nil ~= _740_0)) then local msg = _740_0 if msg:match("loop or previous error loading module") then package.loaded[module_name] = nil return reload(module_name, env, on_values, on_error) elseif specials["macro-loaded"][module_name] then specials["macro-loaded"][module_name] = nil return nil else local function _747_() local _746_0 = msg:gsub("\n.*", "") return _746_0 end return on_error("Runtime", _747_()) end end end local function run_command(read, on_error, f) local _750_0, _751_0, _752_0 = pcall(read) if ((_750_0 == true) and (_751_0 == true) and (nil ~= _752_0)) then local val = _752_0 local _753_0, _754_0 = pcall(f, val) if ((_753_0 == false) and (nil ~= _754_0)) then local msg = _754_0 return on_error("Runtime", msg) end elseif (_750_0 == false) then return on_error("Parse", "Couldn't parse input.") end end commands.reload = function(env, read, on_values, on_error) local function _757_(_241) return reload(tostring(_241), env, on_values, on_error) end return run_command(read, on_error, _757_) end do end (compiler.metadata):set(commands.reload, "fnl/docstring", "Reload the specified module.") commands.reset = function(env, _, on_values) env.___replLocals___ = {} return on_values({"ok"}) end do end (compiler.metadata):set(commands.reset, "fnl/docstring", "Erase all repl-local scope.") commands.complete = function(env, read, on_values, on_error, scope, chars) local function _758_() return on_values(completer(env, scope, table.concat(chars):gsub("^%s*,complete%s+", ""):sub(1, -2))) end return run_command(read, on_error, _758_) end do end (compiler.metadata):set(commands.complete, "fnl/docstring", "Print all possible completions for a given input symbol.") local function apropos_2a(pattern, tbl, prefix, seen, names) for name, subtbl in pairs(tbl) do if (("string" == type(name)) and (package ~= subtbl)) then local _759_0 = type(subtbl) if (_759_0 == "function") then if ((prefix .. name)):match(pattern) then table.insert(names, (prefix .. name)) end elseif (_759_0 == "table") then if not seen[subtbl] then local _761_ do seen[subtbl] = true _761_ = seen end apropos_2a(pattern, subtbl, (prefix .. name:gsub("%.", "/") .. "."), _761_, names) end end end end return names end local function apropos(pattern) return apropos_2a(pattern:gsub("^_G%.", ""), package.loaded, "", {}, {}) end commands.apropos = function(_env, read, on_values, on_error, _scope) local function _765_(_241) return on_values(apropos(tostring(_241))) end return run_command(read, on_error, _765_) end do end (compiler.metadata):set(commands.apropos, "fnl/docstring", "Print all functions matching a pattern in all loaded modules.") local function apropos_follow_path(path) local paths = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for p in path:gmatch("[^%.]+") do local val_19_ = p if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end paths = tbl_17_ end local tgt = package.loaded for _, path0 in ipairs(paths) do if (nil == tgt) then break end local _768_ do local _767_0 = path0:gsub("%/", ".") _768_ = _767_0 end tgt = tgt[_768_] end return tgt end local function apropos_doc(pattern) local tbl_17_ = {} local i_18_ = #tbl_17_ for _, path in ipairs(apropos(".*")) do local val_19_ = nil do local tgt = apropos_follow_path(path) if ("function" == type(tgt)) then local _769_0 = (compiler.metadata):get(tgt, "fnl/docstring") if (nil ~= _769_0) then local docstr = _769_0 val_19_ = (docstr:match(pattern) and path) else val_19_ = nil end else val_19_ = nil end end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end commands["apropos-doc"] = function(_env, read, on_values, on_error, _scope) local function _773_(_241) return on_values(apropos_doc(tostring(_241))) end return run_command(read, on_error, _773_) end do end (compiler.metadata):set(commands["apropos-doc"], "fnl/docstring", "Print all functions that match the pattern in their docs") local function apropos_show_docs(on_values, pattern) for _, path in ipairs(apropos(pattern)) do local tgt = apropos_follow_path(path) if (("function" == type(tgt)) and (compiler.metadata):get(tgt, "fnl/docstring")) then on_values({specials.doc(tgt, path)}) on_values({}) end end return nil end commands["apropos-show-docs"] = function(_env, read, on_values, on_error) local function _775_(_241) return apropos_show_docs(on_values, tostring(_241)) end return run_command(read, on_error, _775_) end do end (compiler.metadata):set(commands["apropos-show-docs"], "fnl/docstring", "Print all documentations matching a pattern in function name") local function resolve(identifier, _776_0, scope) local _777_ = _776_0 local env = _777_ local ___replLocals___ = _777_["___replLocals___"] local e = nil local function _778_(_241, _242) return (___replLocals___[scope.unmanglings[_242]] or env[_242]) end e = setmetatable({}, {__index = _778_}) local function _779_(...) local _780_0, _781_0 = ... if ((_780_0 == true) and (nil ~= _781_0)) then local code = _781_0 local function _782_(...) local _783_0, _784_0 = ... if ((_783_0 == true) and (nil ~= _784_0)) then local val = _784_0 return val else local _ = _783_0 return nil end end return _782_(pcall(specials["load-code"](code, e))) else local _ = _780_0 return nil end end return _779_(pcall(compiler["compile-string"], tostring(identifier), {scope = scope})) end commands.find = function(env, read, on_values, on_error, scope) local function _787_(_241) local _788_0 = nil do local _789_0 = utils["sym?"](_241) if (nil ~= _789_0) then local _790_0 = resolve(_789_0, env, scope) if (nil ~= _790_0) then _788_0 = debug.getinfo(_790_0) else _788_0 = _790_0 end else _788_0 = _789_0 end end if ((_G.type(_788_0) == "table") and (nil ~= _788_0.linedefined) and (nil ~= _788_0.short_src) and (nil ~= _788_0.source) and (_788_0.what == "Lua")) then local line = _788_0.linedefined local src = _788_0.short_src local source = _788_0.source local fnlsrc = nil do local _793_0 = compiler.sourcemap if (nil ~= _793_0) then _793_0 = _793_0[source] end if (nil ~= _793_0) then _793_0 = _793_0[line] end if (nil ~= _793_0) then _793_0 = _793_0[2] end fnlsrc = _793_0 end return on_values({string.format("%s:%s", src, (fnlsrc or line))}) elseif (_788_0 == nil) then return on_error("Repl", "Unknown value") else local _ = _788_0 return on_error("Repl", "No source info") end end return run_command(read, on_error, _787_) end do end (compiler.metadata):set(commands.find, "fnl/docstring", "Print the filename and line number for a given function") commands.doc = function(env, read, on_values, on_error, scope) local function _798_(_241) local name = tostring(_241) local path = (utils["multi-sym?"](name) or {name}) local ok_3f, target = nil, nil local function _799_() return (scope.specials[name] or utils["get-in"](scope.macros, path) or resolve(name, env, scope)) end ok_3f, target = pcall(_799_) if ok_3f then return on_values({specials.doc(target, name)}) else return on_error("Repl", ("Could not find " .. name .. " for docs.")) end end return run_command(read, on_error, _798_) end do end (compiler.metadata):set(commands.doc, "fnl/docstring", "Print the docstring and arglist for a function, macro, or special form.") commands.compile = function(_, read, on_values, on_error, _0, _1, opts) local function _801_(_241) local _802_0, _803_0 = pcall(compiler.compile, _241, opts) if ((_802_0 == true) and (nil ~= _803_0)) then local result = _803_0 return on_values({result}) elseif (true and (nil ~= _803_0)) then local _2 = _802_0 local msg = _803_0 return on_error("Repl", ("Error compiling expression: " .. msg)) end end return run_command(read, on_error, _801_) end do end (compiler.metadata):set(commands.compile, "fnl/docstring", "compiles the expression into lua and prints the result.") local function load_plugin_commands(plugins) for i = #(plugins or {}), 1, -1 do for name, f in pairs(plugins[i]) do local _805_0 = name:match("^repl%-command%-(.*)") if (nil ~= _805_0) then local cmd_name = _805_0 commands[cmd_name] = f end end end return nil end local function run_command_loop(input, read, loop, env, on_values, on_error, scope, chars, opts) local command_name = input:match(",([^%s/]+)") do local _807_0 = commands[command_name] if (nil ~= _807_0) then local command = _807_0 command(env, read, on_values, on_error, scope, chars, opts) else local _ = _807_0 if ((command_name ~= "exit") and (command_name ~= "return")) then on_values({"Unknown command", command_name}) end end end if ("exit" ~= command_name) then return loop((command_name == "return")) end end local function try_readline_21(opts, ok, readline) if ok then if readline.set_readline_name then readline.set_readline_name("fennel") end readline.set_options({histfile = "", keeplines = 1000}) opts.readChunk = function(parser_state) local _812_0 = readline.readline(prompt_for((0 == parser_state["stack-size"]))) if (nil ~= _812_0) then local input = _812_0 return (input .. "\n") end end local completer0 = nil opts.registerCompleter = function(repl_completer) completer0 = repl_completer return nil end local function repl_completer(text, from, to) if completer0 then readline.set_completion_append_character("") return completer0(text:sub(from, to), text, from, to) else return {} end end readline.set_complete_function(repl_completer) return readline end end local function should_use_readline_3f(opts) return (("dumb" ~= os.getenv("TERM")) and not opts.readChunk and not opts.registerCompleter) end local function repl(_3foptions) local old_root_options = utils.root.options local _816_ = copy(_3foptions) local opts = _816_ local _3ffennelrc = _816_["fennelrc"] local _ = nil opts.fennelrc = nil _ = nil local readline = (should_use_readline_3f(opts) and try_readline_21(opts, pcall(require, "readline"))) local _0 = nil if _3ffennelrc then _0 = _3ffennelrc() else _0 = nil end local env = specials["wrap-env"]((opts.env or rawget(_G, "_ENV") or _G)) local callbacks = {["view-opts"] = (opts["view-opts"] or {depth = 4}), env = env, onError = (opts.onError or default_on_error), onValues = (opts.onValues or default_on_values), pp = (opts.pp or view), readChunk = (opts.readChunk or default_read_chunk)} local save_locals_3f = (opts.saveLocals ~= false) local byte_stream, clear_stream = nil, nil local function _818_(_241) return callbacks.readChunk(_241) end byte_stream, clear_stream = parser.granulate(_818_) local chars = {} local read, reset = nil, nil local function _819_(parser_state) local b = byte_stream(parser_state) if b then table.insert(chars, string.char(b)) end return b end read, reset = parser.parser(_819_) depth = (depth + 1) if opts.message then callbacks.onValues({opts.message}) end env.___repl___ = callbacks opts.env, opts.scope = env, compiler["make-scope"]() opts.useMetadata = (opts.useMetadata ~= false) if (opts.allowedGlobals == nil) then opts.allowedGlobals = specials["current-global-names"](env) end if opts.init then opts.init(opts, depth) end if opts.registerCompleter then local function _825_() local _824_0 = opts.scope local function _826_(...) return completer(env, _824_0, ...) end return _826_ end opts.registerCompleter(_825_()) end load_plugin_commands(opts.plugins) if save_locals_3f then local function newindex(t, k, v) if opts.scope.manglings[k] then return rawset(t, k, v) end end env.___replLocals___ = setmetatable({}, {__newindex = newindex}) end local function print_values(...) local vals = {...} local out = {} local pp = callbacks.pp env._, env.__ = vals[1], vals for i = 1, select("#", ...) do table.insert(out, pp(vals[i], callbacks["view-opts"])) end return callbacks.onValues(out) end local function save_value(...) env.___replLocals___["*3"] = env.___replLocals___["*2"] env.___replLocals___["*2"] = env.___replLocals___["*1"] env.___replLocals___["*1"] = ... return ... end opts.scope.manglings["*1"], opts.scope.unmanglings._1 = "_1", "*1" opts.scope.manglings["*2"], opts.scope.unmanglings._2 = "_2", "*2" opts.scope.manglings["*3"], opts.scope.unmanglings._3 = "_3", "*3" local function loop(exit_next_3f) for k in pairs(chars) do chars[k] = nil end reset() local ok, parser_not_eof_3f, form = pcall(read) local src_string = table.concat(chars) local readline_not_eof_3f = (not readline or (src_string ~= "(null)")) local not_eof_3f = (readline_not_eof_3f and parser_not_eof_3f) if not ok then callbacks.onError("Parse", not_eof_3f) clear_stream() return loop() elseif command_3f(src_string) then return run_command_loop(src_string, read, loop, env, callbacks.onValues, callbacks.onError, opts.scope, chars, opts) else if not_eof_3f then local function _830_(...) local _831_0, _832_0 = ... if ((_831_0 == true) and (nil ~= _832_0)) then local src = _832_0 local function _833_(...) local _834_0, _835_0 = ... if ((_834_0 == true) and (nil ~= _835_0)) then local chunk = _835_0 local function _836_() return print_values(save_value(chunk())) end local function _837_(...) return callbacks.onError("Runtime", ...) end return xpcall(_836_, _837_) elseif ((_834_0 == false) and (nil ~= _835_0)) then local msg = _835_0 clear_stream() return callbacks.onError("Compile", msg) end end local function _840_(...) local src0 = nil if save_locals_3f then src0 = splice_save_locals(env, src, opts.scope) else src0 = src end return pcall(specials["load-code"], src0, env) end return _833_(_840_(...)) elseif ((_831_0 == false) and (nil ~= _832_0)) then local msg = _832_0 clear_stream() return callbacks.onError("Compile", msg) end end local function _842_() opts["source"] = src_string return opts end _830_(pcall(compiler.compile, form, _842_())) utils.root.options = old_root_options if exit_next_3f then return env.___replLocals___["*1"] else return loop() end end end end local value = loop() depth = (depth - 1) if readline then readline.save_history() end if opts.exit then opts.exit(opts, depth) end return value end local repl_mt = {__index = {repl = repl}} repl_mt.__call = function(_848_0, _3fopts) local _849_ = _848_0 local overrides = _849_ local view_opts = _849_["view-opts"] local opts = copy(_3fopts, copy(overrides)) local _851_ do local _850_0 = _3fopts if (nil ~= _850_0) then _850_0 = _850_0["view-opts"] end _851_ = _850_0 end opts["view-opts"] = copy(_851_, copy(view_opts)) return repl(opts) end return setmetatable({["view-opts"] = {}}, repl_mt)endpackage.preload["fennel.specials"] = package.preload["fennel.specials"] or function(...) local _484_ = require("fennel.utils") local utils = _484_ local pack = _484_["pack"] local unpack = _484_["unpack"] local view = require("fennel.view") local parser = require("fennel.parser") local compiler = require("fennel.compiler") local SPECIALS = compiler.scopes.global.specials local function str1(x) return tostring(x[1]) end local function wrap_env(env) local function _485_(_, key) if utils["string?"](key) then return env[compiler["global-unmangling"](key)] else return env[key] end end local function _487_(_, key, value) if utils["string?"](key) then env[compiler["global-unmangling"](key)] = value return nil else env[key] = value return nil end end local function _489_() local _490_ do local tbl_14_ = {} for k, v in utils.stablepairs(env) do local k_15_, v_16_ = nil, nil local _491_ if utils["string?"](k) then _491_ = compiler["global-unmangling"](k) else _491_ = k end k_15_, v_16_ = _491_, v if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end _490_ = tbl_14_ end return next, _490_, nil end return setmetatable({}, {__index = _485_, __newindex = _487_, __pairs = _489_}) end local function fennel_module_name() return (utils.root.options.moduleName or "fennel") end local function current_global_names(_3fenv) local mt = nil do local _494_0 = getmetatable(_3fenv) if ((_G.type(_494_0) == "table") and (nil ~= _494_0.__pairs)) then local mtpairs = _494_0.__pairs local tbl_14_ = {} for k, v in mtpairs(_3fenv) do local k_15_, v_16_ = k, v if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end mt = tbl_14_ elseif (_494_0 == nil) then mt = (_3fenv or _G) else mt = nil end end local function _497_() local tbl_17_ = {} local i_18_ = #tbl_17_ for k in utils.stablepairs(mt) do local val_19_ = compiler["global-unmangling"](k) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end return (mt and _497_()) end local function load_code(code, _3fenv, _3ffilename) local env = (_3fenv or rawget(_G, "_ENV") or _G) local _499_0, _500_0 = rawget(_G, "setfenv"), rawget(_G, "loadstring") if ((nil ~= _499_0) and (nil ~= _500_0)) then local setfenv = _499_0 local loadstring = _500_0 local f = assert(loadstring(code, _3ffilename)) setfenv(f, env) return f else local _ = _499_0 return assert(load(code, _3ffilename, "t", env)) end end local function v__3edocstring(tgt) return (((compiler.metadata):get(tgt, "fnl/docstring") or "#<undocumented>")):gsub("\n$", ""):gsub("\n", "\n ") end local function doc_2a(tgt, name) assert(("string" == type(name)), "name must be a string") if not tgt then return (name .. " not found") else local function _503_() local _502_0 = getmetatable(tgt) if ((_G.type(_502_0) == "table") and true) then local __call = _502_0.__call return ("function" == type(__call)) end end if ((type(tgt) == "function") or _503_()) then local elts = {name, unpack(((compiler.metadata):get(tgt, "fnl/arglist") or {"#<unknown-arguments>"}))} return string.format("(%s)\n %s", table.concat(elts, " "), v__3edocstring(tgt)) else return string.format("%s\n %s", name, v__3edocstring(tgt)) end end end local function doc_special(name, arglist, docstring, body_form_3f) compiler.metadata[SPECIALS[name]] = {["fnl/arglist"] = arglist, ["fnl/body-form?"] = body_form_3f, ["fnl/docstring"] = docstring} return nil end local function compile_do(ast, scope, parent, _3fstart) local start = (_3fstart or 2) local len = #ast local sub_scope = compiler["make-scope"](scope) for i = start, len do compiler.compile1(ast[i], sub_scope, parent, {nval = 0}) end return nil end SPECIALS["do"] = function(ast, scope, parent, opts, _3fstart, _3fchunk, _3fsub_scope, _3fpre_syms) local start = (_3fstart or 2) local sub_scope = (_3fsub_scope or compiler["make-scope"](scope)) local chunk = (_3fchunk or {}) local len = #ast local retexprs = {returned = true} utils.hook("pre-do", ast, sub_scope) local function compile_body(outer_target, outer_tail, outer_retexprs) for i = start, len do local subopts = {nval = (((i ~= len) and 0) or opts.nval), tail = (((i == len) and outer_tail) or nil), target = (((i == len) and outer_target) or nil)} local _ = utils["propagate-options"](opts, subopts) local subexprs = compiler.compile1(ast[i], sub_scope, chunk, subopts) if (i ~= len) then compiler["keep-side-effects"](subexprs, parent, nil, ast[i]) end end compiler.emit(parent, chunk, ast) compiler.emit(parent, "end", ast) utils.hook("do", ast, sub_scope) return (outer_retexprs or retexprs) end if (opts.target or (opts.nval == 0) or opts.tail) then compiler.emit(parent, "do", ast) return compile_body(opts.target, opts.tail) elseif opts.nval then local syms = {} for i = 1, opts.nval do local s = ((_3fpre_syms and _3fpre_syms[i]) or compiler.gensym(scope)) syms[i] = s retexprs[i] = utils.expr(s, "sym") end local outer_target = table.concat(syms, ", ") compiler.emit(parent, string.format("local %s", outer_target), ast) compiler.emit(parent, "do", ast) return compile_body(outer_target, opts.tail) else local fname = compiler.gensym(scope) local fargs = nil if scope.vararg then fargs = "..." else fargs = "" end compiler.emit(parent, string.format("local function %s(%s)", fname, fargs), ast) return compile_body(nil, true, utils.expr((fname .. "(" .. fargs .. ")"), "statement")) end end doc_special("do", {"..."}, "Evaluate multiple forms; return last value.", true) local function iter_args(ast) local ast0, len, i = ast, #ast, 1 local function _509_() i = (1 + i) while ((i == len) and utils["call-of?"](ast0[i], "values")) do ast0 = ast0[i] len = #ast0 i = 2 end return ast0[i], (nil == ast0[(i + 1)]) end return _509_ end SPECIALS.values = function(ast, scope, parent) local exprs = {} for subast, last_3f in iter_args(ast) do local subexprs = compiler.compile1(subast, scope, parent, {nval = (not last_3f and 1)}) table.insert(exprs, subexprs[1]) if last_3f then for j = 2, #subexprs do table.insert(exprs, subexprs[j]) end end end return exprs end doc_special("values", {"..."}, "Return multiple values from a function. Must be in tail position.") local function __3estack(stack, tbl) for k, v in pairs(tbl) do table.insert(stack, k) table.insert(stack, v) end return stack end local function literal_3f(val) local res = true if utils["list?"](val) then res = false elseif utils["table?"](val) then local stack = __3estack({}, val) for _, elt in ipairs(stack) do if not res then break end if utils["list?"](elt) then res = false elseif utils["table?"](elt) then __3estack(stack, elt) end end end return res end local function compile_value(v) local opts = {nval = 1, tail = false} local scope = compiler["make-scope"]() local chunk = {} local _513_ = compiler.compile1(v, scope, chunk, opts) local _514_ = _513_[1] local v0 = _514_[1] return v0 end local function insert_meta(meta, k, v) local view_opts = {["escape-newlines?"] = true, ["line-length"] = math.huge, ["one-line?"] = true} compiler.assert((type(k) == "string"), ("expected string keys in metadata table, got: %s"):format(view(k, view_opts))) compiler.assert(literal_3f(v), ("expected literal value in metadata table, got: %s %s"):format(view(k, view_opts), view(v, view_opts))) table.insert(meta, view(k)) local function _515_() if ("string" == type(v)) then return view(v, view_opts) else return compile_value(v) end end table.insert(meta, _515_()) return meta end local function insert_arglist(meta, arg_list) local opts = {["escape-newlines?"] = true, ["line-length"] = math.huge, ["one-line?"] = true} local view_args = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, arg in ipairs(arg_list) do local val_19_ = view(view(arg, opts)) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end view_args = tbl_17_ end table.insert(meta, "\"fnl/arglist\"") table.insert(meta, ("{" .. table.concat(view_args, ", ") .. "}")) return meta end local function set_fn_metadata(f_metadata, parent, fn_name) if utils.root.options.useMetadata then local meta_fields = {} for k, v in utils.stablepairs(f_metadata) do if (k == "fnl/arglist") then insert_arglist(meta_fields, v) else insert_meta(meta_fields, k, v) end end if (type(utils.root.options.useMetadata) == "string") then return compiler.emit(parent, ("%s:setall(%s, %s)"):format(utils.root.options.useMetadata, fn_name, table.concat(meta_fields, ", "))) else local meta_str = ("require(\"%s\").metadata"):format(fennel_module_name()) return compiler.emit(parent, ("pcall(function() %s:setall(%s, %s) end)"):format(meta_str, fn_name, table.concat(meta_fields, ", "))) end end end local function get_fn_name(ast, scope, fn_name, multi) if (fn_name and (fn_name[1] ~= "nil")) then local _520_ if not multi then _520_ = compiler["declare-local"](fn_name, scope, ast) else _520_ = compiler["symbol-to-expression"](fn_name, scope)[1] end return _520_, not multi, 3 else return nil, true, 2 end end local function compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, local_3f, arg_name_list, f_metadata) utils.hook("pre-fn", ast, f_scope, parent) for i = (index + 1), #ast do compiler.compile1(ast[i], f_scope, f_chunk, {nval = (((i ~= #ast) and 0) or nil), tail = (i == #ast)}) end local _523_ if local_3f then _523_ = "local function %s(%s)" else _523_ = "%s = function(%s)" end compiler.emit(parent, string.format(_523_, fn_name, table.concat(arg_name_list, ", ")), ast) compiler.emit(parent, f_chunk, ast) compiler.emit(parent, "end", ast) set_fn_metadata(f_metadata, parent, fn_name) utils.hook("fn", ast, f_scope, parent) return utils.expr(fn_name, "sym") end local function compile_anonymous_fn(ast, f_scope, f_chunk, parent, index, arg_name_list, f_metadata, scope) local fn_name = compiler.gensym(scope) return compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, true, arg_name_list, f_metadata) end local function maybe_metadata(ast, pred, handler, mt, index) local index_2a = (index + 1) local index_2a_before_ast_end_3f = (index_2a < #ast) local expr = ast[index_2a] if (index_2a_before_ast_end_3f and pred(expr)) then return handler(mt, expr), index_2a else return mt, index end end local function get_function_metadata(ast, arg_list, index) local function _526_(_241, _242) local tbl_14_ = _241 for k, v in pairs(_242) do local k_15_, v_16_ = k, v if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end return tbl_14_ end local function _528_(_241, _242) _241["fnl/docstring"] = _242 return _241 end return maybe_metadata(ast, utils["kv-table?"], _526_, maybe_metadata(ast, utils["string?"], _528_, {["fnl/arglist"] = arg_list}, index)) end SPECIALS.fn = function(ast, scope, parent, opts) local f_scope = nil do local _529_0 = compiler["make-scope"](scope) _529_0["vararg"] = false f_scope = _529_0 end local f_chunk = {} local fn_sym = utils["sym?"](ast[2]) local multi = (fn_sym and utils["multi-sym?"](fn_sym[1])) local fn_name, local_3f, index = get_fn_name(ast, scope, fn_sym, multi, opts) local arg_list = compiler.assert(utils["table?"](ast[index]), "expected parameters table", ast) compiler.assert((not multi or not multi["multi-sym-method-call"]), ("unexpected multi symbol " .. tostring(fn_name)), fn_sym) if (multi and not scope.symmeta[multi[1]] and not compiler["global-allowed?"](multi[1])) then compiler.assert(nil, ("expected local table " .. multi[1]), ast[2]) end local function destructure_arg(arg) local raw = utils.sym(compiler.gensym(scope)) local declared = compiler["declare-local"](raw, f_scope, ast) compiler.destructure(arg, raw, ast, f_scope, f_chunk, {declaration = true, nomulti = true, symtype = "arg"}) return declared end local function destructure_amp(i) compiler.assert((i == (#arg_list - 1)), "expected rest argument before last parameter", arg_list[(i + 1)], arg_list) f_scope.vararg = true compiler.destructure(arg_list[#arg_list], {utils.varg()}, ast, f_scope, f_chunk, {declaration = true, nomulti = true, symtype = "arg"}) return "..." end local function get_arg_name(arg, i) if f_scope.vararg then return nil elseif utils["varg?"](arg) then compiler.assert((arg == arg_list[#arg_list]), "expected vararg as last parameter", ast) f_scope.vararg = true return "..." elseif utils["sym?"](arg, "&") then return destructure_amp(i) elseif (utils["sym?"](arg) and (tostring(arg) ~= "nil") and not utils["multi-sym?"](tostring(arg))) then return compiler["declare-local"](arg, f_scope, ast) elseif utils["table?"](arg) then return destructure_arg(arg) else return compiler.assert(false, ("expected symbol for function parameter: %s"):format(tostring(arg)), ast[index]) end end local arg_name_list = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i, a in ipairs(arg_list) do local val_19_ = get_arg_name(a, i) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end arg_name_list = tbl_17_ end local f_metadata, index0 = get_function_metadata(ast, arg_list, index) if fn_name then return compile_named_fn(ast, f_scope, f_chunk, parent, index0, fn_name, local_3f, arg_name_list, f_metadata) else return compile_anonymous_fn(ast, f_scope, f_chunk, parent, index0, arg_name_list, f_metadata, scope) end end doc_special("fn", {"name?", "args", "docstring?", "..."}, "Function syntax. May optionally include a name and docstring or a metadata table.\nIf a name is provided, the function will be bound in the current scope.\nWhen called with the wrong number of args, excess args will be discarded\nand lacking args will be nil, use lambda for arity-checked functions.", true) SPECIALS.lua = function(ast, _, parent) compiler.assert(((#ast == 2) or (#ast == 3)), "expected 1 or 2 arguments", ast) local _535_ do local _534_0 = utils["sym?"](ast[2]) if (nil ~= _534_0) then _535_ = tostring(_534_0) else _535_ = _534_0 end end if ("nil" ~= _535_) then table.insert(parent, {ast = ast, leaf = tostring(ast[2])}) end local _539_ do local _538_0 = utils["sym?"](ast[3]) if (nil ~= _538_0) then _539_ = tostring(_538_0) else _539_ = _538_0 end end if ("nil" ~= _539_) then return tostring(ast[3]) end end local function dot(ast, scope, parent) compiler.assert((1 < #ast), "expected table argument", ast) local len = #ast local lhs_node = compiler.macroexpand(ast[2], scope) local _542_ = compiler.compile1(lhs_node, scope, parent, {nval = 1}) local lhs = _542_[1] if (len == 2) then return tostring(lhs) else local indices = {} for i = 3, len do local index = ast[i] if (utils["string?"](index) and utils["valid-lua-identifier?"](index)) then table.insert(indices, ("." .. index)) else local _543_ = compiler.compile1(index, scope, parent, {nval = 1}) local index0 = _543_[1] table.insert(indices, ("[" .. tostring(index0) .. "]")) end end if (not (utils["sym?"](lhs_node) or utils["list?"](lhs_node)) or ("nil" == tostring(lhs_node))) then return ("(" .. tostring(lhs) .. ")" .. table.concat(indices)) else return (tostring(lhs) .. table.concat(indices)) end end end SPECIALS["."] = dot doc_special(".", {"tbl", "key1", "..."}, "Look up key1 in tbl table. If more args are provided, do a nested lookup.") SPECIALS.global = function(ast, scope, parent) compiler.assert((#ast == 3), "expected name and value", ast) compiler.destructure(ast[2], ast[3], ast, scope, parent, {forceglobal = true, nomulti = true, symtype = "global"}) return nil end doc_special("global", {"name", "val"}, "Set name as a global with val. Deprecated.") SPECIALS.set = function(ast, scope, parent) compiler.assert((#ast == 3), "expected name and value", ast) compiler.destructure(ast[2], ast[3], ast, scope, parent, {noundef = true, symtype = "set"}) return nil end doc_special("set", {"name", "val"}, "Set a local variable to a new value. Only works on locals using var.") local function set_forcibly_21_2a(ast, scope, parent) compiler.assert((#ast == 3), "expected name and value", ast) compiler.destructure(ast[2], ast[3], ast, scope, parent, {forceset = true, symtype = "set"}) return nil end SPECIALS["set-forcibly!"] = set_forcibly_21_2a local function local_2a(ast, scope, parent, opts) compiler.assert(((0 == opts.nval) or opts.tail), "can't introduce local here", ast) compiler.assert((#ast == 3), "expected name and value", ast) compiler.destructure(ast[2], ast[3], ast, scope, parent, {declaration = true, nomulti = true, symtype = "local"}) return nil end SPECIALS["local"] = local_2a doc_special("local", {"name", "val"}, "Introduce new top-level immutable local.") SPECIALS.var = function(ast, scope, parent, opts) compiler.assert(((0 == opts.nval) or opts.tail), "can't introduce var here", ast) compiler.assert((#ast == 3), "expected name and value", ast) compiler.destructure(ast[2], ast[3], ast, scope, parent, {declaration = true, isvar = true, nomulti = true, symtype = "var"}) return nil end doc_special("var", {"name", "val"}, "Introduce new mutable local.") local function kv_3f(t) local _547_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for k in pairs(t) do local val_19_ = nil if ("number" ~= type(k)) then val_19_ = k else val_19_ = nil end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _547_ = tbl_17_ end return _547_[1] end SPECIALS.let = function(_550_0, scope, parent, opts) local _551_ = _550_0 local _ = _551_[1] local bindings = _551_[2] local ast = _551_ compiler.assert((utils["table?"](bindings) and not kv_3f(bindings)), "expected binding sequence", (bindings or ast[1])) compiler.assert(((#bindings % 2) == 0), "expected even number of name/value bindings", bindings) compiler.assert((3 <= #ast), "expected body expression", ast[1]) local pre_syms = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _0 = 1, (opts.nval or 0) do local val_19_ = compiler.gensym(scope) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end pre_syms = tbl_17_ end local sub_scope = compiler["make-scope"](scope) local sub_chunk = {} for i = 1, #bindings, 2 do compiler.destructure(bindings[i], bindings[(i + 1)], ast, sub_scope, sub_chunk, {declaration = true, nomulti = true, symtype = "let"}) end return SPECIALS["do"](ast, scope, parent, opts, 3, sub_chunk, sub_scope, pre_syms) end doc_special("let", {"[name1 val1 ... nameN valN]", "..."}, "Introduces a new scope in which a given set of local bindings are used.", true) local function get_prev_line(parent) if ("table" == type(parent)) then return get_prev_line((parent.leaf or parent[#parent])) else return (parent or "") end end local function needs_separator_3f(root, prev_line) return (root:match("^%(") and prev_line and not prev_line:find(" end$")) end SPECIALS.tset = function(ast, scope, parent) compiler.assert((3 < #ast), "expected table, key, and value arguments", ast) compiler.assert(((type(ast[2]) ~= "boolean") and (type(ast[2]) ~= "number")), "cannot set field of literal value", ast) local root = str1(compiler.compile1(ast[2], scope, parent, {nval = 1})) local root0 = nil if root:match("^[.{\"]") then root0 = string.format("(%s)", root) else root0 = root end local keys = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 3, (#ast - 1) do local val_19_ = str1(compiler.compile1(ast[i], scope, parent, {nval = 1})) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end keys = tbl_17_ end local value = str1(compiler.compile1(ast[#ast], scope, parent, {nval = 1})) local fmtstr = nil if needs_separator_3f(root0, get_prev_line(parent)) then fmtstr = "do end %s[%s] = %s" else fmtstr = "%s[%s] = %s" end return compiler.emit(parent, fmtstr:format(root0, table.concat(keys, "]["), value), ast) end doc_special("tset", {"tbl", "key1", "...", "keyN", "val"}, "Set the value of a table field. Deprecated in favor of set.") local function calculate_if_target(scope, opts) if not (opts.tail or opts.target or opts.nval) then return "iife", true, nil elseif (opts.nval and (opts.nval ~= 0) and not opts.target) then local accum = {} local target_exprs = {} for i = 1, opts.nval do local s = compiler.gensym(scope) accum[i] = s target_exprs[i] = utils.expr(s, "sym") end return "target", opts.tail, table.concat(accum, ", "), target_exprs else return "none", opts.tail, opts.target end end local function if_2a(ast, scope, parent, opts) compiler.assert((2 < #ast), "expected condition and body", ast) if ((1 == (#ast % 2)) and (ast[(#ast - 1)] == true)) then table.remove(ast, (#ast - 1)) end if (1 == (#ast % 2)) then table.insert(ast, utils.sym("nil")) end if (#ast == 2) then return SPECIALS["do"](utils.list(utils.sym("do"), ast[2]), scope, parent, opts) else local do_scope = compiler["make-scope"](scope) local branches = {} local wrapper, inner_tail, inner_target, target_exprs = calculate_if_target(scope, opts) local body_opts = {nval = opts.nval, tail = inner_tail, target = inner_target} local function compile_body(i) local chunk = {} local cscope = compiler["make-scope"](do_scope) compiler["keep-side-effects"](compiler.compile1(ast[i], cscope, chunk, body_opts), chunk, nil, ast[i]) return {chunk = chunk, scope = cscope} end for i = 2, (#ast - 1), 2 do local condchunk = {} local _560_ = compiler.compile1(ast[i], do_scope, condchunk, {nval = 1}) local cond = _560_[1] local branch = compile_body((i + 1)) branch.cond = cond branch.condchunk = condchunk branch.nested = ((i ~= 2) and (next(condchunk, nil) == nil)) table.insert(branches, branch) end local else_branch = compile_body(#ast) local s = compiler.gensym(scope) local buffer = {} local last_buffer = buffer for i = 1, #branches do local branch = branches[i] local fstr = nil if not branch.nested then fstr = "if %s then" else fstr = "elseif %s then" end local cond = tostring(branch.cond) local cond_line = fstr:format(cond) if branch.nested then compiler.emit(last_buffer, branch.condchunk, ast) else for _, v in ipairs(branch.condchunk) do compiler.emit(last_buffer, v, ast) end end compiler.emit(last_buffer, cond_line, ast) compiler.emit(last_buffer, branch.chunk, ast) if (i == #branches) then compiler.emit(last_buffer, "else", ast) compiler.emit(last_buffer, else_branch.chunk, ast) compiler.emit(last_buffer, "end", ast) elseif not branches[(i + 1)].nested then local next_buffer = {} compiler.emit(last_buffer, "else", ast) compiler.emit(last_buffer, next_buffer, ast) compiler.emit(last_buffer, "end", ast) last_buffer = next_buffer end end if (wrapper == "iife") then local iifeargs = ((scope.vararg and "...") or "") compiler.emit(parent, ("local function %s(%s)"):format(tostring(s), iifeargs), ast) compiler.emit(parent, buffer, ast) compiler.emit(parent, "end", ast) return utils.expr(("%s(%s)"):format(tostring(s), iifeargs), "statement") elseif (wrapper == "none") then for i = 1, #buffer do compiler.emit(parent, buffer[i], ast) end return {returned = true} else compiler.emit(parent, ("local %s"):format(inner_target), ast) for i = 1, #buffer do compiler.emit(parent, buffer[i], ast) end return target_exprs end end end SPECIALS["if"] = if_2a doc_special("if", {"cond1", "body1", "...", "condN", "bodyN"}, "Conditional form.\nTakes any number of condition/body pairs and evaluates the first body where\nthe condition evaluates to truthy. Similar to cond in other lisps.") local function clause_3f(v) return (utils["string?"](v) or (utils["sym?"](v) and not utils["multi-sym?"](v) and tostring(v):match("^&(.+)"))) end local function remove_until_condition(bindings, ast) local _until = nil for i = (#bindings - 1), 3, -1 do local _566_0 = clause_3f(bindings[i]) if ((_566_0 == false) or (_566_0 == nil)) then elseif (nil ~= _566_0) then local clause = _566_0 compiler.assert(((clause == "until") and not _until), ("unexpected iterator clause: " .. clause), ast) table.remove(bindings, i) _until = table.remove(bindings, i) end end return _until end local function compile_until(_3fcondition, scope, chunk) if _3fcondition then local _568_ = compiler.compile1(_3fcondition, scope, chunk, {nval = 1}) local condition_lua = _568_[1] return compiler.emit(chunk, ("if %s then break end"):format(tostring(condition_lua)), utils.expr(_3fcondition, "expression")) end end local function iterator_bindings(ast) local bindings = utils.copy(ast) local _3funtil = remove_until_condition(bindings, ast) local iter = table.remove(bindings) local bindings0 = nil if (1 == #bindings) then bindings0 = (utils["list?"](bindings[1]) or bindings) else for _, b in ipairs(bindings) do if utils["list?"](b) then utils.warn("unexpected parens in iterator", b) end end bindings0 = bindings end return bindings0, iter, _3funtil end SPECIALS.each = function(ast, scope, parent) compiler.assert((3 <= #ast), "expected body expression", ast[1]) compiler.assert(utils["table?"](ast[2]), "expected binding table", ast) local sub_scope = compiler["make-scope"](scope) local binding, iter, _3funtil_condition = iterator_bindings(ast[2]) local destructures = {} local deferred_scope_changes = {manglings = {}, symmeta = {}} utils.hook("pre-each", ast, sub_scope, binding, iter, _3funtil_condition) local function destructure_binding(v) if utils["sym?"](v) then return compiler["declare-local"](v, sub_scope, ast, nil, deferred_scope_changes) else local raw = utils.sym(compiler.gensym(sub_scope)) destructures[raw] = v return compiler["declare-local"](raw, sub_scope, ast) end end local bind_vars = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, b in ipairs(binding) do local val_19_ = destructure_binding(b) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end bind_vars = tbl_17_ end local vals = compiler.compile1(iter, scope, parent) local val_names = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, v in ipairs(vals) do local val_19_ = tostring(v) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end val_names = tbl_17_ end local chunk = {} compiler.assert(bind_vars[1], "expected binding and iterator", ast) compiler.emit(parent, ("for %s in %s do"):format(table.concat(bind_vars, ", "), table.concat(val_names, ", ")), ast) for raw, args in utils.stablepairs(destructures) do compiler.destructure(args, raw, ast, sub_scope, chunk, {declaration = true, nomulti = true, symtype = "each"}) end compiler["apply-deferred-scope-changes"](sub_scope, deferred_scope_changes, ast) compile_until(_3funtil_condition, sub_scope, chunk) compile_do(ast, sub_scope, chunk, 3) compiler.emit(parent, chunk, ast) return compiler.emit(parent, "end", ast) end doc_special("each", {"[key value (iterator)]", "..."}, "Runs the body once for each set of values provided by the given iterator.\nMost commonly used with ipairs for sequential tables or pairs for undefined\norder, but can be used with any iterator.", true) local function while_2a(ast, scope, parent) local len1 = #parent local condition = compiler.compile1(ast[2], scope, parent, {nval = 1})[1] local len2 = #parent local sub_chunk = {} if (len1 ~= len2) then for i = (len1 + 1), len2 do table.insert(sub_chunk, parent[i]) parent[i] = nil end compiler.emit(parent, "while true do", ast) compiler.emit(sub_chunk, ("if not %s then break end"):format(condition[1]), ast) else compiler.emit(parent, ("while " .. tostring(condition) .. " do"), ast) end compile_do(ast, compiler["make-scope"](scope), sub_chunk, 3) compiler.emit(parent, sub_chunk, ast) return compiler.emit(parent, "end", ast) end SPECIALS["while"] = while_2a doc_special("while", {"condition", "..."}, "The classic while loop. Evaluates body until a condition is non-truthy.", true) local function for_2a(ast, scope, parent) compiler.assert(utils["table?"](ast[2]), "expected binding table", ast) local ranges = setmetatable(utils.copy(ast[2]), getmetatable(ast[2])) local until_condition = remove_until_condition(ranges, ast) local binding_sym = table.remove(ranges, 1) local sub_scope = compiler["make-scope"](scope) local range_args = {} local chunk = {} compiler.assert(utils["sym?"](binding_sym), ("unable to bind %s %s"):format(type(binding_sym), tostring(binding_sym)), ast[2]) compiler.assert((3 <= #ast), "expected body expression", ast[1]) compiler.assert((#ranges <= 3), "unexpected arguments", ranges) compiler.assert((1 < #ranges), "expected range to include start and stop", ranges) utils.hook("pre-for", ast, sub_scope, binding_sym) for i = 1, math.min(#ranges, 3) do range_args[i] = str1(compiler.compile1(ranges[i], scope, parent, {nval = 1})) end compiler.emit(parent, ("for %s = %s do"):format(compiler["declare-local"](binding_sym, sub_scope, ast), table.concat(range_args, ", ")), ast) compile_until(until_condition, sub_scope, chunk) compile_do(ast, sub_scope, chunk, 3) compiler.emit(parent, chunk, ast) return compiler.emit(parent, "end", ast) end SPECIALS["for"] = for_2a doc_special("for", {"[index start stop step?]", "..."}, "Numeric loop construct.\nEvaluates body once for each value between start and stop (inclusive).", true) local function method_special_type(ast) if (utils["string?"](ast[3]) and utils["valid-lua-identifier?"](ast[3])) then return "native" elseif utils["sym?"](ast[2]) then return "nonnative" else return "binding" end end local function native_method_call(ast, _scope, _parent, target, args) local _577_ = ast local _ = _577_[1] local _0 = _577_[2] local method_string = _577_[3] local call_string = nil if ((target.type == "literal") or (target.type == "varg") or ((target.type == "expression") and not (target[1]):match("[%)%]]$") and not (target[1]):match("%.[%a_][%w_]*$"))) then call_string = "(%s):%s(%s)" else call_string = "%s:%s(%s)" end return utils.expr(string.format(call_string, tostring(target), method_string, table.concat(args, ", ")), "statement") end local function nonnative_method_call(ast, scope, parent, target, args) local method_string = str1(compiler.compile1(ast[3], scope, parent, {nval = 1})) local args0 = {tostring(target), unpack(args)} return utils.expr(string.format("%s[%s](%s)", tostring(target), method_string, table.concat(args0, ", ")), "statement") end local function binding_method_call(ast, scope, parent, target, args) local method_string = str1(compiler.compile1(ast[3], scope, parent, {nval = 1})) local target_local = compiler.gensym(scope, "tgt") local args0 = {target_local, unpack(args)} compiler.emit(parent, string.format("local %s = %s", target_local, tostring(target))) return utils.expr(string.format("(%s)[%s](%s)", target_local, method_string, table.concat(args0, ", ")), "statement") end local function method_call(ast, scope, parent) compiler.assert((2 < #ast), "expected at least 2 arguments", ast) local _579_ = compiler.compile1(ast[2], scope, parent, {nval = 1}) local target = _579_[1] local args = {} for i = 4, #ast do local subexprs = nil local _580_ if (i ~= #ast) then _580_ = 1 else _580_ = nil end subexprs = compiler.compile1(ast[i], scope, parent, {nval = _580_}) local tbl_17_ = args local i_18_ = #tbl_17_ for _, subexpr in ipairs(subexprs) do local val_19_ = tostring(subexpr) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end end local _583_0 = method_special_type(ast) if (_583_0 == "native") then return native_method_call(ast, scope, parent, target, args) elseif (_583_0 == "nonnative") then return nonnative_method_call(ast, scope, parent, target, args) elseif (_583_0 == "binding") then return binding_method_call(ast, scope, parent, target, args) end end SPECIALS[":"] = method_call doc_special(":", {"tbl", "method-name", "..."}, "Call the named method on tbl with the provided args.\nMethod name doesn't have to be known at compile-time; if it is, use\n(tbl:method-name ...) instead.") SPECIALS.comment = function(ast, _, parent) local c = nil local _585_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for i, elt in ipairs(ast) do local val_19_ = nil if (i ~= 1) then val_19_ = view(elt, {["one-line?"] = true}) else val_19_ = nil end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _585_ = tbl_17_ end c = table.concat(_585_, " "):gsub("%]%]", "]\\]") return compiler.emit(parent, ("--[[ " .. c .. " ]]"), ast) end doc_special("comment", {"..."}, "Comment which will be emitted in Lua output.", true) local function hashfn_max_used(f_scope, i, max) local max0 = nil if f_scope.symmeta[("$" .. i)].used then max0 = i else max0 = max end if (i < 9) then return hashfn_max_used(f_scope, (i + 1), max0) else return max0 end end SPECIALS.hashfn = function(ast, scope, parent) compiler.assert((#ast == 2), "expected one argument", ast) local f_scope = nil do local _590_0 = compiler["make-scope"](scope) _590_0["vararg"] = false _590_0["hashfn"] = true f_scope = _590_0 end local f_chunk = {} local name = compiler.gensym(scope) local symbol = utils.sym(name) local args = {} compiler["declare-local"](symbol, scope, ast) for i = 1, 9 do args[i] = compiler["declare-local"](utils.sym(("$" .. i)), f_scope, ast) end local function walker(idx, node, _3fparent_node) if utils["sym?"](node, "$...") then f_scope.vararg = true if _3fparent_node then _3fparent_node[idx] = utils.varg() return nil else return utils.varg() end else return ((utils["list?"](node) and (not _3fparent_node or not utils["sym?"](node[1], "hashfn"))) or utils["table?"](node)) end end utils["walk-tree"](ast, walker) compiler.compile1(ast[2], f_scope, f_chunk, {tail = true}) local max_used = hashfn_max_used(f_scope, 1, 0) if f_scope.vararg then compiler.assert((max_used == 0), "$ and $... in hashfn are mutually exclusive", ast) end local arg_str = nil if f_scope.vararg then arg_str = tostring(utils.varg()) else arg_str = table.concat(args, ", ", 1, max_used) end compiler.emit(parent, string.format("local function %s(%s)", name, arg_str), ast) compiler.emit(parent, f_chunk, ast) compiler.emit(parent, "end", ast) return utils.expr(name, "sym") end doc_special("hashfn", {"..."}, "Function literal shorthand; args are either $... OR $1, $2, etc.") local function comparator_special_type(ast) if (3 == #ast) then return "native" elseif utils["every?"]({unpack(ast, 3, (#ast - 1))}, utils["idempotent-expr?"]) then return "idempotent" else return "binding" end end local function short_circuit_safe_3f(x, scope) if (("table" ~= type(x)) or utils["sym?"](x) or utils["varg?"](x)) then return true elseif utils["table?"](x) then local ok = true for k, v in pairs(x) do if not ok then break end ok = (short_circuit_safe_3f(v, scope) and short_circuit_safe_3f(k, scope)) end return ok elseif utils["list?"](x) then if utils["sym?"](x[1]) then local _596_0 = str1(x) if ((_596_0 == "fn") or (_596_0 == "hashfn") or (_596_0 == "let") or (_596_0 == "local") or (_596_0 == "var") or (_596_0 == "set") or (_596_0 == "tset") or (_596_0 == "if") or (_596_0 == "each") or (_596_0 == "for") or (_596_0 == "while") or (_596_0 == "do") or (_596_0 == "lua") or (_596_0 == "global")) then return false elseif (((_596_0 == "<") or (_596_0 == ">") or (_596_0 == "<=") or (_596_0 == ">=") or (_596_0 == "=") or (_596_0 == "not=") or (_596_0 == "~=")) and (comparator_special_type(x) == "binding")) then return false else local function _597_() return (1 ~= x[2]) end if ((_596_0 == "pick-values") and _597_()) then return false else local function _598_() local call = _596_0 return scope.macros[call] end if ((nil ~= _596_0) and _598_()) then local call = _596_0 return false else local function _599_() return (method_special_type(x) == "binding") end if ((_596_0 == ":") and _599_()) then return false else local _ = _596_0 local ok = true for i = 2, #x do if not ok then break end ok = short_circuit_safe_3f(x[i], scope) end return ok end end end end else local ok = true for _, v in ipairs(x) do if not ok then break end ok = short_circuit_safe_3f(v, scope) end return ok end end end local function operator_special_result(ast, zero_arity, unary_prefix, padded_op, operands) local _603_0 = #operands if (_603_0 == 0) then if zero_arity then return utils.expr(zero_arity, "literal") else return compiler.assert(false, "Expected more than 0 arguments", ast) end elseif (_603_0 == 1) then if unary_prefix then return ("(" .. unary_prefix .. padded_op .. operands[1] .. ")") else return operands[1] end else local _ = _603_0 return ("(" .. table.concat(operands, padded_op) .. ")") end end local function emit_short_circuit_if(ast, scope, parent, name, subast, accumulator, expr_string, setter) if (accumulator ~= expr_string) then compiler.emit(parent, string.format(setter, accumulator, expr_string), ast) end local function _608_() if (name == "and") then return accumulator else return ("not " .. accumulator) end end compiler.emit(parent, ("if %s then"):format(_608_()), subast) do local chunk = {} compiler.compile1(subast, scope, chunk, {nval = 1, target = accumulator}) compiler.emit(parent, chunk) end return compiler.emit(parent, "end") end local function operator_special(name, zero_arity, unary_prefix, ast, scope, parent) compiler.assert(not ((#ast == 2) and utils["varg?"](ast[2])), "tried to use vararg with operator", ast) local padded_op = (" " .. name .. " ") local operands, accumulator = {} if utils["call-of?"](ast[#ast], "values") then utils.warn("multiple values in operators are deprecated", ast) end for subast in iter_args(ast) do if ((nil ~= next(operands)) and ((name == "or") or (name == "and")) and not short_circuit_safe_3f(subast, scope)) then local expr_string = table.concat(operands, padded_op) local setter = nil if accumulator then setter = "%s = %s" else setter = "local %s = %s" end if not accumulator then accumulator = compiler.gensym(scope, name) end emit_short_circuit_if(ast, scope, parent, name, subast, accumulator, expr_string, setter) operands = {accumulator} else table.insert(operands, str1(compiler.compile1(subast, scope, parent, {nval = 1}))) end end return operator_special_result(ast, zero_arity, unary_prefix, padded_op, operands) end local function define_arithmetic_special(name, zero_arity, unary_prefix, _3flua_name) local _614_ do local _613_0 = (_3flua_name or name) local function _615_(...) return operator_special(_613_0, zero_arity, unary_prefix, ...) end _614_ = _615_ end SPECIALS[name] = _614_ return doc_special(name, {"a", "b", "..."}, "Arithmetic operator; works the same as Lua but accepts more arguments.") end define_arithmetic_special("+", "0", "0") define_arithmetic_special("..", "''") define_arithmetic_special("^") define_arithmetic_special("-", nil, "") define_arithmetic_special("*", "1", "1") define_arithmetic_special("%") define_arithmetic_special("/", nil, "1") define_arithmetic_special("//", nil, "1") SPECIALS["or"] = function(ast, scope, parent) return operator_special("or", "false", nil, ast, scope, parent) end SPECIALS["and"] = function(ast, scope, parent) return operator_special("and", "true", nil, ast, scope, parent) end doc_special("and", {"a", "b", "..."}, "Boolean operator; works the same as Lua but accepts more arguments.") doc_special("or", {"a", "b", "..."}, "Boolean operator; works the same as Lua but accepts more arguments.") local function bitop_special(native_name, lib_name, zero_arity, unary_prefix, ast, scope, parent) if (#ast == 1) then return compiler.assert(zero_arity, "Expected more than 0 arguments.", ast) else local len = #ast local operands = {} local padded_native_name = (" " .. native_name .. " ") local prefixed_lib_name = ("bit." .. lib_name) for i = 2, len do local subexprs = nil local _616_ if (i ~= len) then _616_ = 1 else _616_ = nil end subexprs = compiler.compile1(ast[i], scope, parent, {nval = _616_}) local tbl_17_ = operands local i_18_ = #tbl_17_ for _, s in ipairs(subexprs) do local val_19_ = tostring(s) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end end if (#operands == 1) then if utils.root.options.useBitLib then return (prefixed_lib_name .. "(" .. unary_prefix .. ", " .. operands[1] .. ")") else return ("(" .. unary_prefix .. padded_native_name .. operands[1] .. ")") end else if utils.root.options.useBitLib then return (prefixed_lib_name .. "(" .. table.concat(operands, ", ") .. ")") else return ("(" .. table.concat(operands, padded_native_name) .. ")") end end end end local function define_bitop_special(name, zero_arity, unary_prefix, native) local function _623_(...) return bitop_special(native, name, zero_arity, unary_prefix, ...) end SPECIALS[name] = _623_ return nil end define_bitop_special("lshift", nil, "1", "<<") define_bitop_special("rshift", nil, "1", ">>") define_bitop_special("band", "-1", "-1", "&") define_bitop_special("bor", "0", "0", "|") define_bitop_special("bxor", "0", "0", "~") doc_special("lshift", {"x", "n"}, "Bitwise logical left shift of x by n bits.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.") doc_special("rshift", {"x", "n"}, "Bitwise logical right shift of x by n bits.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.") doc_special("band", {"x1", "x2", "..."}, "Bitwise AND of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.") doc_special("bor", {"x1", "x2", "..."}, "Bitwise OR of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.") doc_special("bxor", {"x1", "x2", "..."}, "Bitwise XOR of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.") SPECIALS.bnot = function(ast, scope, parent) compiler.assert((#ast == 2), "expected one argument", ast) local _624_ = compiler.compile1(ast[2], scope, parent, {nval = 1}) local value = _624_[1] if utils.root.options.useBitLib then return ("bit.bnot(" .. tostring(value) .. ")") else return ("~(" .. tostring(value) .. ")") end end doc_special("bnot", {"x"}, "Bitwise negation; only works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.") doc_special("..", {"a", "b", "..."}, "String concatenation operator; works the same as Lua but accepts more arguments.") local function native_comparator(op, _626_0, scope, parent) local _627_ = _626_0 local _ = _627_[1] local lhs_ast = _627_[2] local rhs_ast = _627_[3] local _628_ = compiler.compile1(lhs_ast, scope, parent, {nval = 1}) local lhs = _628_[1] local _629_ = compiler.compile1(rhs_ast, scope, parent, {nval = 1}) local rhs = _629_[1] return string.format("(%s %s %s)", tostring(lhs), op, tostring(rhs)) end local function idempotent_comparator(op, chain_op, ast, scope, parent) local vals = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 2, #ast do local val_19_ = str1(compiler.compile1(ast[i], scope, parent, {nval = 1})) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end vals = tbl_17_ end local comparisons = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 1, (#vals - 1) do local val_19_ = string.format("(%s %s %s)", vals[i], op, vals[(i + 1)]) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end comparisons = tbl_17_ end local chain = string.format(" %s ", (chain_op or "and")) return ("(" .. table.concat(comparisons, chain) .. ")") end local function binding_comparator(op, chain_op, ast, scope, parent) local binding_left = {} local binding_right = {} local vals = {} local chain = string.format(" %s ", (chain_op or "and")) for i = 2, #ast do local compiled = str1(compiler.compile1(ast[i], scope, parent, {nval = 1})) if (utils["idempotent-expr?"](ast[i]) or (i == 2) or (i == #ast)) then table.insert(vals, compiled) else local my_sym = compiler.gensym(scope) table.insert(binding_left, my_sym) table.insert(binding_right, compiled) table.insert(vals, my_sym) end end compiler.emit(parent, string.format("local %s = %s", table.concat(binding_left, ", "), table.concat(binding_right, ", "), ast)) local _633_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 1, (#vals - 1) do local val_19_ = string.format("(%s %s %s)", vals[i], op, vals[(i + 1)]) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _633_ = tbl_17_ end return ("(" .. table.concat(_633_, chain) .. ")") end local function define_comparator_special(name, _3flua_op, _3fchain_op) do local op = (_3flua_op or name) local function opfn(ast, scope, parent) compiler.assert((2 < #ast), "expected at least two arguments", ast) local _635_0 = comparator_special_type(ast) if (_635_0 == "native") then return native_comparator(op, ast, scope, parent) elseif (_635_0 == "idempotent") then return idempotent_comparator(op, _3fchain_op, ast, scope, parent) elseif (_635_0 == "binding") then return binding_comparator(op, _3fchain_op, ast, scope, parent) else local _ = _635_0 return error("internal compiler error. please report this to the fennel devs.") end end SPECIALS[name] = opfn end return doc_special(name, {"a", "b", "..."}, "Comparison operator; works the same as Lua but accepts more arguments.") end define_comparator_special(">") define_comparator_special("<") define_comparator_special(">=") define_comparator_special("<=") define_comparator_special("=", "==") define_comparator_special("not=", "~=", "or") local function define_unary_special(op, _3frealop) local function opfn(ast, scope, parent) compiler.assert((#ast == 2), "expected one argument", ast) local tail = compiler.compile1(ast[2], scope, parent, {nval = 1}) return ((_3frealop or op) .. str1(tail)) end SPECIALS[op] = opfn return nil end define_unary_special("not", "not ") doc_special("not", {"x"}, "Logical operator; works the same as Lua.") define_unary_special("length", "#") doc_special("length", {"x"}, "Returns the length of a table or string.") SPECIALS["~="] = SPECIALS["not="] SPECIALS["#"] = SPECIALS.length local function compile_time_3f(scope) return ((scope == compiler.scopes.compiler) or (scope.parent and compile_time_3f(scope.parent))) end SPECIALS.quote = function(ast, scope, parent) compiler.assert((#ast == 2), "expected one argument", ast) return compiler["do-quote"](ast[2], scope, parent, not compile_time_3f(scope)) end doc_special("quote", {"x"}, "Quasiquote the following form. Only works in macro/compiler scope.") local macro_loaded = {} local function safe_getmetatable(tbl) local mt = getmetatable(tbl) assert((mt ~= getmetatable("")), "Illegal metatable access!") return mt end local safe_require = nil local function safe_compiler_env() local _638_ do local _637_0 = rawget(_G, "utf8") if (nil ~= _637_0) then _638_ = utils.copy(_637_0) else _638_ = _637_0 end end return {_VERSION = _VERSION, assert = assert, bit = rawget(_G, "bit"), error = error, getmetatable = safe_getmetatable, ipairs = ipairs, math = utils.copy(math), next = next, pairs = utils.stablepairs, pcall = pcall, print = print, rawequal = rawequal, rawget = rawget, rawlen = rawget(_G, "rawlen"), rawset = rawset, require = safe_require, select = select, setmetatable = setmetatable, string = utils.copy(string), table = utils.copy(table), tonumber = tonumber, tostring = tostring, type = type, utf8 = _638_, xpcall = xpcall} end local function combined_mt_pairs(env) local combined = {} local _640_ = getmetatable(env) local __index = _640_["__index"] if ("table" == type(__index)) then for k, v in pairs(__index) do combined[k] = v end end for k, v in next, env, nil do combined[k] = v end return next, combined, nil end local function make_compiler_env(ast, scope, parent, _3fopts) local provided = nil do local _642_0 = (_3fopts or utils.root.options) if ((_G.type(_642_0) == "table") and (_642_0["compiler-env"] == "strict")) then provided = safe_compiler_env() elseif ((_G.type(_642_0) == "table") and (nil ~= _642_0.compilerEnv)) then local compilerEnv = _642_0.compilerEnv provided = compilerEnv elseif ((_G.type(_642_0) == "table") and (nil ~= _642_0["compiler-env"])) then local compiler_env = _642_0["compiler-env"] provided = compiler_env else local _ = _642_0 provided = safe_compiler_env() end end local env = nil local function _644_() return compiler.scopes.macro end local function _645_(symbol) compiler.assert(compiler.scopes.macro, "must call from macro", ast) return compiler.scopes.macro.manglings[tostring(symbol)] end local function _646_(base) return utils.sym(compiler.gensym((compiler.scopes.macro or scope), base)) end local function _647_(form) compiler.assert(compiler.scopes.macro, "must call from macro", ast) return compiler.macroexpand(form, compiler.scopes.macro) end env = {["assert-compile"] = compiler.assert, ["ast-source"] = utils["ast-source"], ["comment?"] = utils["comment?"], ["fennel-module-name"] = fennel_module_name, ["get-scope"] = _644_, ["in-scope?"] = _645_, ["list?"] = utils["list?"], ["macro-loaded"] = macro_loaded, ["multi-sym?"] = utils["multi-sym?"], ["sequence?"] = utils["sequence?"], ["sym?"] = utils["sym?"], ["table?"] = utils["table?"], ["varg?"] = utils["varg?"], _AST = ast, _CHUNK = parent, _IS_COMPILER = true, _SCOPE = scope, _SPECIALS = compiler.scopes.global.specials, _VARARG = utils.varg(), comment = utils.comment, gensym = _646_, list = utils.list, macroexpand = _647_, pack = pack, sequence = utils.sequence, sym = utils.sym, unpack = unpack, version = utils.version, view = view} env._G = env return setmetatable(env, {__index = provided, __newindex = provided, __pairs = combined_mt_pairs}) end local function _648_(...) local tbl_17_ = {} local i_18_ = #tbl_17_ for c in string.gmatch((package.config or ""), "([^\n]+)") do local val_19_ = c if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end local _650_ = _648_(...) local dirsep = _650_[1] local pathsep = _650_[2] local pathmark = _650_[3] local pkg_config = {dirsep = (dirsep or "/"), pathmark = (pathmark or "?"), pathsep = (pathsep or ";")} local function escapepat(str) return string.gsub(str, "[^%w]", "%%%1") end local function search_module(modulename, _3fpathstring) local pathsepesc = escapepat(pkg_config.pathsep) local pattern = ("([^%s]*)%s"):format(pathsepesc, pathsepesc) local no_dot_module = modulename:gsub("%.", pkg_config.dirsep) local fullpath = ((_3fpathstring or utils["fennel-module"].path) .. pkg_config.pathsep) local function try_path(path) local filename = path:gsub(escapepat(pkg_config.pathmark), no_dot_module) local _651_0 = io.open(filename) if (nil ~= _651_0) then local file = _651_0 file:close() return filename else local _ = _651_0 return nil, ("no file '" .. filename .. "'") end end local function find_in_path(start, _3ftried_paths) local _653_0 = fullpath:match(pattern, start) if (nil ~= _653_0) then local path = _653_0 local _654_0, _655_0 = try_path(path) if (nil ~= _654_0) then local filename = _654_0 return filename elseif ((_654_0 == nil) and (nil ~= _655_0)) then local error = _655_0 local function _657_() local _656_0 = (_3ftried_paths or {}) table.insert(_656_0, error) return _656_0 end return find_in_path((start + #path + 1), _657_()) end else local _ = _653_0 local function _659_() local tried_paths = table.concat((_3ftried_paths or {}), "\n\9") if (_VERSION < "Lua 5.4") then return ("\n\9" .. tried_paths) else return tried_paths end end return nil, _659_() end end return find_in_path(1) end local function make_searcher(_3foptions) local function _662_(module_name) local opts = utils.copy(utils.root.options) for k, v in pairs((_3foptions or {})) do opts[k] = v end opts["module-name"] = module_name local _663_0, _664_0 = search_module(module_name) if (nil ~= _663_0) then local filename = _663_0 local function _665_(...) return utils["fennel-module"].dofile(filename, opts, ...) end return _665_, filename elseif ((_663_0 == nil) and (nil ~= _664_0)) then local error = _664_0 return error end end return _662_ end local function dofile_with_searcher(fennel_macro_searcher, filename, opts, ...) local searchers = (package.loaders or package.searchers or {}) local _ = table.insert(searchers, 1, fennel_macro_searcher) local m = utils["fennel-module"].dofile(filename, opts, ...) table.remove(searchers, 1) return m end local function fennel_macro_searcher(module_name) local opts = nil do local _667_0 = utils.copy(utils.root.options) _667_0["module-name"] = module_name _667_0["env"] = "_COMPILER" _667_0["requireAsInclude"] = false _667_0["allowedGlobals"] = nil opts = _667_0 end local _668_0 = search_module(module_name, utils["fennel-module"]["macro-path"]) if (nil ~= _668_0) then local filename = _668_0 local _669_ if (opts["compiler-env"] == _G) then local function _670_(...) return dofile_with_searcher(fennel_macro_searcher, filename, opts, ...) end _669_ = _670_ else local function _671_(...) return utils["fennel-module"].dofile(filename, opts, ...) end _669_ = _671_ end return _669_, filename end end local function lua_macro_searcher(module_name) local _674_0 = search_module(module_name, package.path) if (nil ~= _674_0) then local filename = _674_0 local code = nil do local f = io.open(filename) local function close_handlers_10_(ok_11_, ...) f:close() if ok_11_ then return ... else return error(..., 0) end end local function _676_() return assert(f:read("*a")) end code = close_handlers_10_(_G.xpcall(_676_, (package.loaded.fennel or debug).traceback)) end local chunk = load_code(code, make_compiler_env(), filename) return chunk, filename end end local macro_searchers = {fennel_macro_searcher, lua_macro_searcher} local function search_macro_module(modname, n) local _678_0 = macro_searchers[n] if (nil ~= _678_0) then local f = _678_0 local _679_0, _680_0 = f(modname) if ((nil ~= _679_0) and true) then local loader = _679_0 local _3ffilename = _680_0 return loader, _3ffilename else local _ = _679_0 return search_macro_module(modname, (n + 1)) end end end local function sandbox_fennel_module(modname) if ((modname == "fennel.macros") or (package and package.loaded and ("table" == type(package.loaded[modname])) and (package.loaded[modname].metadata == compiler.metadata))) then local function _683_(_, ...) return (compiler.metadata):setall(...) end return {metadata = {setall = _683_}, view = view} end end local function _685_(modname) local function _686_() local loader, filename = search_macro_module(modname, 1) compiler.assert(loader, (modname .. " module not found.")) macro_loaded[modname] = loader(modname, filename) return macro_loaded[modname] end return (macro_loaded[modname] or sandbox_fennel_module(modname) or _686_()) end safe_require = _685_ local function add_macros(macros_2a, ast, scope) compiler.assert(utils["table?"](macros_2a), "expected macros to be table", ast) for k, v in pairs(macros_2a) do compiler.assert((type(v) == "function"), "expected each macro to be function", ast) compiler["check-binding-valid"](utils.sym(k), scope, ast, {["macro?"] = true}) scope.macros[k] = v end return nil end local function resolve_module_name(_687_0, _scope, _parent, opts) local _688_ = _687_0 local second = _688_[2] local filename = _688_["filename"] local filename0 = (filename or (utils["table?"](second) and second.filename)) local module_name = utils.root.options["module-name"] local modexpr = compiler.compile(second, opts) local modname_chunk = load_code(modexpr) return modname_chunk(module_name, filename0) end SPECIALS["require-macros"] = function(ast, scope, parent, _3freal_ast) compiler.assert((#ast == 2), "Expected one module name argument", (_3freal_ast or ast)) local modname = resolve_module_name(ast, scope, parent, {}) compiler.assert(utils["string?"](modname), "module name must compile to string", (_3freal_ast or ast)) if not macro_loaded[modname] then local loader, filename = search_macro_module(modname, 1) compiler.assert(loader, (modname .. " module not found."), ast) macro_loaded[modname] = compiler.assert(utils["table?"](loader(modname, filename)), "expected macros to be table", (_3freal_ast or ast)) end if ("import-macros" == str1(ast)) then return macro_loaded[modname] else return add_macros(macro_loaded[modname], ast, scope) end end doc_special("require-macros", {"macro-module-name"}, "Load given module and use its contents as macro definitions in current scope.\nDeprecated.") local function emit_included_fennel(src, path, opts, sub_chunk) local subscope = compiler["make-scope"](utils.root.scope.parent) local forms = {} if utils.root.options.requireAsInclude then subscope.specials.require = compiler["require-include"] end for _, val in parser.parser(parser["string-stream"](src), path) do table.insert(forms, val) end for i = 1, #forms do local subopts = nil if (i == #forms) then subopts = {tail = true} else subopts = {nval = 0} end utils["propagate-options"](opts, subopts) compiler.compile1(forms[i], subscope, sub_chunk, subopts) end return nil end local function include_path(ast, opts, path, mod, fennel_3f) utils.root.scope.includes[mod] = "fnl/loading" local src = nil do local f = assert(io.open(path)) local function close_handlers_10_(ok_11_, ...) f:close() if ok_11_ then return ... else return error(..., 0) end end local function _694_() return assert(f:read("*all")):gsub("[\13\n]*$", "") end src = close_handlers_10_(_G.xpcall(_694_, (package.loaded.fennel or debug).traceback)) end local ret = utils.expr(("require(\"" .. mod .. "\")"), "statement") local target = ("package.preload[%q]"):format(mod) local preload_str = (target .. " = " .. target .. " or function(...)") local temp_chunk, sub_chunk = {}, {} compiler.emit(temp_chunk, preload_str, ast) compiler.emit(temp_chunk, sub_chunk) compiler.emit(temp_chunk, "end", ast) for _, v in ipairs(temp_chunk) do table.insert(utils.root.chunk, v) end if fennel_3f then emit_included_fennel(src, path, opts, sub_chunk) else compiler.emit(sub_chunk, src, ast) end utils.root.scope.includes[mod] = ret return ret end local function include_circular_fallback(mod, modexpr, fallback, ast) if (utils.root.scope.includes[mod] == "fnl/loading") then compiler.assert(fallback, "circular include detected", ast) return fallback(modexpr) end end SPECIALS.include = function(ast, scope, parent, opts) compiler.assert((#ast == 2), "expected one argument", ast) local modexpr = nil do local _697_0, _698_0 = pcall(resolve_module_name, ast, scope, parent, opts) if ((_697_0 == true) and (nil ~= _698_0)) then local modname = _698_0 modexpr = utils.expr(string.format("%q", modname), "literal") else local _ = _697_0 modexpr = compiler.compile1(ast[2], scope, parent, {nval = 1})[1] end end if ((modexpr.type ~= "literal") or ((modexpr[1]):byte() ~= 34)) then if opts.fallback then return opts.fallback(modexpr) else return compiler.assert(false, "module name must be string literal", ast) end else local mod = load_code(("return " .. modexpr[1]))() local oldmod = utils.root.options["module-name"] local _ = nil utils.root.options["module-name"] = mod _ = nil local res = nil local function _702_() local _701_0 = search_module(mod) if (nil ~= _701_0) then local fennel_path = _701_0 return include_path(ast, opts, fennel_path, mod, true) else local _0 = _701_0 local lua_path = search_module(mod, package.path) if lua_path then return include_path(ast, opts, lua_path, mod, false) elseif opts.fallback then return opts.fallback(modexpr) else return compiler.assert(false, ("module not found " .. mod), ast) end end end res = ((utils["member?"](mod, (utils.root.options.skipInclude or {})) and opts.fallback(modexpr, true)) or include_circular_fallback(mod, modexpr, opts.fallback, ast) or utils.root.scope.includes[mod] or _702_()) utils.root.options["module-name"] = oldmod return res end end doc_special("include", {"module-name-literal"}, "Like require but load the target module during compilation and embed it in the\nLua output. The module must be a string literal and resolvable at compile time.") local function eval_compiler_2a(ast, scope, parent) local env = make_compiler_env(ast, scope, parent) local opts = utils.copy(utils.root.options) opts.scope = compiler["make-scope"](compiler.scopes.compiler) opts.allowedGlobals = current_global_names(env) return assert(load_code(compiler.compile(ast, opts), wrap_env(env)))(opts["module-name"], ast.filename) end SPECIALS.macros = function(ast, scope, parent) compiler.assert((#ast == 2), "Expected one table argument", ast) local macro_tbl = eval_compiler_2a(ast[2], scope, parent) compiler.assert(utils["table?"](macro_tbl), "Expected one table argument", ast) return add_macros(macro_tbl, ast, scope) end doc_special("macros", {"{:macro-name-1 (fn [...] ...) ... :macro-name-N macro-body-N}"}, "Define all functions in the given table as macros local to the current scope.") SPECIALS["tail!"] = function(ast, scope, parent, opts) compiler.assert((#ast == 2), "Expected one argument", ast) local call = utils["list?"](compiler.macroexpand(ast[2], scope)) local callee = tostring((call and utils["sym?"](call[1]))) compiler.assert((call and not scope.specials[callee]), "Expected a function call as argument", ast) compiler.assert(opts.tail, "Must be in tail position", ast) return compiler.compile1(call, scope, parent, opts) end doc_special("tail!", {"body"}, "Assert that the body being called is in tail position.") SPECIALS["pick-values"] = function(ast, scope, parent) local n = ast[2] local vals = utils.list(utils.sym("values"), unpack(ast, 3)) compiler.assert((("number" == type(n)) and (0 <= n) and (n == math.floor(n))), ("Expected n to be an integer >= 0, got " .. tostring(n))) if (1 == n) then local _706_ = compiler.compile1(vals, scope, parent, {nval = 1}) local _707_ = _706_[1] local expr = _707_[1] return {("(" .. expr .. ")")} elseif (0 == n) then for i = 3, #ast do compiler["keep-side-effects"](compiler.compile1(ast[i], scope, parent, {nval = 0}), parent, nil, ast[i]) end return {} else local syms = nil do local tbl_17_ = utils.list() local i_18_ = #tbl_17_ for _ = 1, n do local val_19_ = utils.sym(compiler.gensym(scope, "pv")) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end syms = tbl_17_ end compiler.destructure(syms, vals, ast, scope, parent, {declaration = true, nomulti = true, noundef = true, symtype = "pv"}) return syms end end doc_special("pick-values", {"n", "..."}, "Evaluate to exactly n values.\n\nFor example,\n (pick-values 2 ...)\nexpands to\n (let [(_0_ _1_) ...]\n (values _0_ _1_))") SPECIALS["eval-compiler"] = function(ast, scope, parent) local old_first = ast[1] ast[1] = utils.sym("do") local val = eval_compiler_2a(ast, scope, parent) ast[1] = old_first return val end doc_special("eval-compiler", {"..."}, "Evaluate the body at compile-time. Use the macro system instead if possible.", true) SPECIALS.unquote = function(ast) return compiler.assert(false, "tried to use unquote outside quote", ast) end doc_special("unquote", {"..."}, "Evaluate the argument even if it's in a quoted form.") return {["current-global-names"] = current_global_names, ["get-function-metadata"] = get_function_metadata, ["load-code"] = load_code, ["macro-loaded"] = macro_loaded, ["macro-searchers"] = macro_searchers, ["make-compiler-env"] = make_compiler_env, ["make-searcher"] = make_searcher, ["search-module"] = search_module, ["wrap-env"] = wrap_env, doc = doc_2a}endpackage.preload["fennel.compiler"] = package.preload["fennel.compiler"] or function(...) local _281_ = require("fennel.utils") local utils = _281_ local unpack = _281_["unpack"] local parser = require("fennel.parser") local friend = require("fennel.friend") local view = require("fennel.view") local scopes = {compiler = nil, global = nil, macro = nil} local function make_scope(_3fparent) local parent = (_3fparent or scopes.global) local _282_ if parent then _282_ = ((parent.depth or 0) + 1) else _282_ = 0 end return {["gensym-base"] = setmetatable({}, {__index = (parent and parent["gensym-base"])}), autogensyms = setmetatable({}, {__index = (parent and parent.autogensyms)}), depth = _282_, gensyms = setmetatable({}, {__index = (parent and parent.gensyms)}), hashfn = (parent and parent.hashfn), includes = setmetatable({}, {__index = (parent and parent.includes)}), macros = setmetatable({}, {__index = (parent and parent.macros)}), manglings = setmetatable({}, {__index = (parent and parent.manglings)}), parent = parent, refedglobals = {}, specials = setmetatable({}, {__index = (parent and parent.specials)}), symmeta = setmetatable({}, {__index = (parent and parent.symmeta)}), unmanglings = setmetatable({}, {__index = (parent and parent.unmanglings)}), vararg = (parent and parent.vararg)} end local function assert_msg(ast, msg) local ast_tbl = nil if ("table" == type(ast)) then ast_tbl = ast else ast_tbl = {} end local m = getmetatable(ast) local filename = ((m and m.filename) or ast_tbl.filename or "unknown") local line = ((m and m.line) or ast_tbl.line or "?") local col = ((m and m.col) or ast_tbl.col or "?") local target = tostring((utils["sym?"](ast_tbl[1]) or ast_tbl[1] or "()")) return string.format("%s:%s:%s: Compile error in '%s': %s", filename, line, col, target, msg) end local function assert_compile(condition, msg, ast, _3ffallback_ast) if not condition then local _285_ = (utils.root.options or {}) local error_pinpoint = _285_["error-pinpoint"] local source = _285_["source"] local unfriendly = _285_["unfriendly"] local ast0 = nil if next(utils["ast-source"](ast)) then ast0 = ast else ast0 = (_3ffallback_ast or {}) end if (nil == utils.hook("assert-compile", condition, msg, ast0, utils.root.reset)) then utils.root.reset() if unfriendly then error(assert_msg(ast0, msg), 0) else friend["assert-compile"](condition, msg, ast0, source, {["error-pinpoint"] = error_pinpoint}) end end end return condition end scopes.global = make_scope() scopes.global.vararg = true scopes.compiler = make_scope(scopes.global) scopes.macro = scopes.global local serialize_subst_digits = {["\\10"] = "\\n", ["\\11"] = "\\v", ["\\12"] = "\\f", ["\\13"] = "\\r", ["\\7"] = "\\a", ["\\8"] = "\\b", ["\\9"] = "\\t"} local function serialize_string(str) local function _290_(_241) return ("\\" .. _241:byte()) end return string.gsub(string.gsub(string.gsub(string.format("%q", str), "\\\n", "\\n"), "\\..?", serialize_subst_digits), "[\128-\255]", _290_) end local function global_mangling(str) if utils["valid-lua-identifier?"](str) then return str else local _292_ do local _291_0 = utils.root.options if (nil ~= _291_0) then _291_0 = _291_0["global-mangle"] end _292_ = _291_0 end if (_292_ == false) then return ("_G[%q]"):format(str) else local function _294_(_241) return string.format("_%02x", _241:byte()) end return ("__fnl_global__" .. str:gsub("[^%w]", _294_)) end end end local function global_unmangling(identifier) local _296_0 = string.match(identifier, "^__fnl_global__(.*)$") if (nil ~= _296_0) then local rest = _296_0 local _297_0 = nil local function _298_(_241) return string.char(tonumber(_241:sub(2), 16)) end _297_0 = rest:gsub("_[%da-f][%da-f]", _298_) return _297_0 else local _ = _296_0 return identifier end end local function global_allowed_3f(name) local allowed = nil do local _300_0 = utils.root.options if (nil ~= _300_0) then _300_0 = _300_0.allowedGlobals end allowed = _300_0 end return (not allowed or utils["member?"](name, allowed)) end local function unique_mangling(original, mangling, scope, append) if scope.unmanglings[mangling] then return unique_mangling(original, (original .. append), scope, (append + 1)) else return mangling end end local function apply_deferred_scope_changes(scope, deferred_scope_changes, ast) for raw, mangled in pairs(deferred_scope_changes.manglings) do assert_compile(not scope.refedglobals[mangled], ("use of global " .. raw .. " is aliased by a local"), ast) scope.manglings[raw] = mangled end for raw, symmeta in pairs(deferred_scope_changes.symmeta) do scope.symmeta[raw] = symmeta end return nil end local function combine_parts(parts, scope) local ret = (scope.manglings[parts[1]] or global_mangling(parts[1])) for i = 2, #parts do if utils["valid-lua-identifier?"](parts[i]) then if (parts["multi-sym-method-call"] and (i == #parts)) then ret = (ret .. ":" .. parts[i]) else ret = (ret .. "." .. parts[i]) end else ret = (ret .. "[" .. serialize_string(parts[i]) .. "]") end end return ret end local function root_scope(scope) return ((utils.root and utils.root.scope) or (scope.parent and root_scope(scope.parent)) or scope) end local function next_append(root_scope_2a) root_scope_2a["gensym-append"] = ((root_scope_2a["gensym-append"] or 0) + 1) return ("_" .. root_scope_2a["gensym-append"] .. "_") end local function gensym(scope, _3fbase, _3fsuffix) local root_scope_2a = root_scope(scope) local mangling = ((_3fbase or "") .. next_append(root_scope_2a) .. (_3fsuffix or "")) while scope.unmanglings[mangling] do mangling = ((_3fbase or "") .. next_append(root_scope_2a) .. (_3fsuffix or "")) end if (_3fbase and (0 < #_3fbase)) then scope["gensym-base"][mangling] = _3fbase end scope.gensyms[mangling] = true return mangling end local function combine_auto_gensym(parts, first) parts[1] = first local last = table.remove(parts) local last2 = table.remove(parts) local last_joiner = ((parts["multi-sym-method-call"] and ":") or ".") table.insert(parts, (last2 .. last_joiner .. last)) return table.concat(parts, ".") end local function autogensym(base, scope) local _306_0 = utils["multi-sym?"](base) if (nil ~= _306_0) then local parts = _306_0 return combine_auto_gensym(parts, autogensym(parts[1], scope)) else local _ = _306_0 local function _307_() local mangling = gensym(scope, base:sub(1, -2), "auto") scope.autogensyms[base] = mangling return mangling end return (scope.autogensyms[base] or _307_()) end end local function check_binding_valid(symbol, scope, ast, _3fopts) local name = tostring(symbol) local macro_3f = nil do local _309_0 = _3fopts if (nil ~= _309_0) then _309_0 = _309_0["macro?"] end macro_3f = _309_0 end assert_compile(("&" ~= name:match("[&.:]")), "invalid character: &", symbol) assert_compile(not name:find("^%."), "invalid character: .", symbol) assert_compile(not (scope.specials[name] or (not macro_3f and scope.macros[name])), ("local %s was overshadowed by a special form or macro"):format(name), ast) return assert_compile(not utils["quoted?"](symbol), string.format("macro tried to bind %s without gensym", name), symbol) end local function declare_local(symbol, scope, ast, _3fvar_3f, _3fdeferred_scope_changes) check_binding_valid(symbol, scope, ast) assert_compile(not utils["multi-sym?"](symbol), ("unexpected multi symbol " .. tostring(symbol)), ast) local str = tostring(symbol) local raw = nil if (utils["lua-keyword?"](str) or str:match("^%d")) then raw = ("_" .. str) else raw = str end local mangling = nil local function _312_(_241) return string.format("_%02x", _241:byte()) end mangling = string.gsub(string.gsub(raw, "-", "_"), "[^%w_]", _312_) local unique = unique_mangling(mangling, mangling, scope, 0) scope.unmanglings[unique] = (scope["gensym-base"][str] or str) do local target = (_3fdeferred_scope_changes or scope) target.manglings[str] = unique target.symmeta[str] = {symbol = symbol, var = _3fvar_3f} end return unique end local function hashfn_arg_name(name, multi_sym_parts, scope) if not scope.hashfn then return nil elseif (name == "$") then return "$1" elseif multi_sym_parts then if (multi_sym_parts and (multi_sym_parts[1] == "$")) then multi_sym_parts[1] = "$1" end return table.concat(multi_sym_parts, ".") end end local function symbol_to_expression(symbol, scope, _3freference_3f) utils.hook("symbol-to-expression", symbol, scope, _3freference_3f) local name = symbol[1] local multi_sym_parts = utils["multi-sym?"](name) local name0 = (hashfn_arg_name(name, multi_sym_parts, scope) or name) local parts = (multi_sym_parts or {name0}) local etype = (((1 < #parts) and "expression") or "sym") local local_3f = scope.manglings[parts[1]] if (local_3f and scope.symmeta[parts[1]]) then scope.symmeta[parts[1]]["used"] = true symbol.referent = scope.symmeta[parts[1]].symbol end assert_compile(not scope.macros[parts[1]], "tried to reference a macro without calling it", symbol) assert_compile((not scope.specials[parts[1]] or ("require" == parts[1])), "tried to reference a special form without calling it", symbol) assert_compile((not _3freference_3f or local_3f or ("_ENV" == parts[1]) or global_allowed_3f(parts[1])), ("unknown identifier: " .. tostring(parts[1])), symbol) local function _317_() local _316_0 = utils.root.options if (nil ~= _316_0) then _316_0 = _316_0.allowedGlobals end return _316_0 end if (_317_() and not local_3f and scope.parent) then scope.parent.refedglobals[parts[1]] = true end return utils.expr(combine_parts(parts, scope), etype) end local function emit(chunk, out, _3fast) if (type(out) == "table") then return table.insert(chunk, out) else return table.insert(chunk, {ast = _3fast, leaf = out}) end end local function peephole(chunk) if chunk.leaf then return chunk elseif ((3 <= #chunk) and (chunk[(#chunk - 2)].leaf == "do") and not chunk[(#chunk - 1)].leaf and (chunk[#chunk].leaf == "end")) then local kid = peephole(chunk[(#chunk - 1)]) local new_chunk = {ast = chunk.ast} for i = 1, (#chunk - 3) do table.insert(new_chunk, peephole(chunk[i])) end for i = 1, #kid do table.insert(new_chunk, kid[i]) end return new_chunk else local tbl_17_ = {} local i_18_ = #tbl_17_ for _, x in ipairs(chunk) do local val_19_ = peephole(x) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end end local function flatten_chunk_correlated(main_chunk, options) local function flatten(chunk, out, last_line, file) local last_line0 = last_line if chunk.leaf then out[last_line0] = ((out[last_line0] or "") .. " " .. chunk.leaf) else for _, subchunk in ipairs(chunk) do if (subchunk.leaf or next(subchunk)) then local source = utils["ast-source"](subchunk.ast) if (file == source.filename) then last_line0 = math.max(last_line0, (source.line or 0)) end last_line0 = flatten(subchunk, out, last_line0, file) end end end return last_line0 end local out = {} local last = flatten(main_chunk, out, 1, options.filename) for i = 1, last do if (out[i] == nil) then out[i] = "" end end return table.concat(out, "\n") end local function flatten_chunk(file_sourcemap, chunk, tab, depth) if chunk.leaf then local _327_ = utils["ast-source"](chunk.ast) local endline = _327_["endline"] local filename = _327_["filename"] local line = _327_["line"] if ("end" == chunk.leaf) then table.insert(file_sourcemap, {filename, (endline or line)}) else table.insert(file_sourcemap, {filename, line}) end return chunk.leaf else local tab0 = nil do local _329_0 = tab if (_329_0 == true) then tab0 = " " elseif (_329_0 == false) then tab0 = "" elseif (nil ~= _329_0) then local tab1 = _329_0 tab0 = tab1 elseif (_329_0 == nil) then tab0 = "" else tab0 = nil end end local _331_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, c in ipairs(chunk) do local val_19_ = nil if (c.leaf or next(c)) then local sub = flatten_chunk(file_sourcemap, c, tab0, (depth + 1)) if (0 < depth) then val_19_ = (tab0 .. sub:gsub("\n", ("\n" .. tab0))) else val_19_ = sub end else val_19_ = nil end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _331_ = tbl_17_ end return table.concat(_331_, "\n") end end local sourcemap = {} local function make_short_src(source) local source0 = source:gsub("\n", " ") if (#source0 <= 49) then return ("[fennel \"" .. source0 .. "\"]") else return ("[fennel \"" .. source0:sub(1, 46) .. "...\"]") end end local function flatten(chunk, options) local chunk0 = peephole(chunk) local indent = (options.indent or " ") if options.correlate then return flatten_chunk_correlated(chunk0, options), {} else local file_sourcemap = {} local src = flatten_chunk(file_sourcemap, chunk0, indent, 0) file_sourcemap.short_src = (options.filename or make_short_src((options.source or src))) if options.filename then file_sourcemap.key = ("@" .. options.filename) else file_sourcemap.key = src end sourcemap[file_sourcemap.key] = file_sourcemap return src, file_sourcemap end end local function make_metadata() local function _339_(self, tgt, _3fkey) if self[tgt] then if (nil ~= _3fkey) then return self[tgt][_3fkey] else return self[tgt] end end end local function _342_(self, tgt, key, value) self[tgt] = (self[tgt] or {}) self[tgt][key] = value return tgt end local function _343_(self, tgt, ...) local kv_len = select("#", ...) local kvs = {...} if ((kv_len % 2) ~= 0) then error("metadata:setall() expected even number of k/v pairs") end self[tgt] = (self[tgt] or {}) for i = 1, kv_len, 2 do self[tgt][kvs[i]] = kvs[(i + 1)] end return tgt end return setmetatable({}, {__index = {get = _339_, set = _342_, setall = _343_}, __mode = "k"}) end local function exprs1(exprs) local _345_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, e in ipairs(exprs) do local val_19_ = tostring(e) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _345_ = tbl_17_ end return table.concat(_345_, ", ") end local function keep_side_effects(exprs, chunk, _3fstart, ast) for j = (_3fstart or 1), #exprs do local subexp = exprs[j] if ((subexp.type == "expression") and (subexp[1] ~= "nil")) then emit(chunk, ("do local _ = %s end"):format(tostring(subexp)), ast) elseif (subexp.type == "statement") then local code = tostring(subexp) local disambiguated = nil if (code:byte() == 40) then disambiguated = ("do end " .. code) else disambiguated = code end emit(chunk, disambiguated, ast) end end return nil end local function handle_compile_opts(exprs, parent, opts, ast) if opts.nval then local n = opts.nval local len = #exprs if (n ~= len) then if (n < len) then keep_side_effects(exprs, parent, (n + 1), ast) for i = (n + 1), len do exprs[i] = nil end else for i = (#exprs + 1), n do exprs[i] = utils.expr("nil", "literal") end end end end if opts.tail then emit(parent, string.format("return %s", exprs1(exprs)), ast) end if opts.target then local result = exprs1(exprs) local function _353_() if (result == "") then return "nil" else return result end end emit(parent, string.format("%s = %s", opts.target, _353_()), ast) end if (opts.tail or opts.target) then return {returned = true} else exprs["returned"] = true return exprs end end local function find_macro(ast, scope) local macro_2a = nil do local _356_0 = utils["sym?"](ast[1]) if (_356_0 ~= nil) then local _357_0 = tostring(_356_0) if (_357_0 ~= nil) then macro_2a = scope.macros[_357_0] else macro_2a = _357_0 end else macro_2a = _356_0 end end local multi_sym_parts = utils["multi-sym?"](ast[1]) if (not macro_2a and multi_sym_parts) then local nested_macro = utils["get-in"](scope.macros, multi_sym_parts) assert_compile((not scope.macros[multi_sym_parts[1]] or (type(nested_macro) == "function")), "macro not found in imported macro module", ast) return nested_macro else return macro_2a end end local function propagate_trace_info(_361_0, _index, node) local _362_ = _361_0 local byteend = _362_["byteend"] local bytestart = _362_["bytestart"] local filename = _362_["filename"] local line = _362_["line"] do local src = utils["ast-source"](node) if (("table" == type(node)) and (filename ~= src.filename)) then src.filename, src.line, src["from-macro?"] = filename, line, true src.bytestart, src.byteend = bytestart, byteend end end return ("table" == type(node)) end local function quote_literal_nils(index, node, parent) if (parent and utils["list?"](parent)) then for i = 1, utils.maxn(parent) do if (nil == parent[i]) then parent[i] = utils.sym("nil") end end end return index, node, parent end local function built_in_3f(m) local found_3f = false for _, f in pairs(scopes.global.macros) do if found_3f then break end found_3f = (f == m) end return found_3f end local function macroexpand_2a(ast, scope, _3fonce) local _366_0 = nil if utils["list?"](ast) then _366_0 = find_macro(ast, scope) else _366_0 = nil end if (_366_0 == false) then return ast elseif (nil ~= _366_0) then local macro_2a = _366_0 local old_scope = scopes.macro local _ = nil scopes.macro = scope _ = nil local ok, transformed = nil, nil local function _368_() return macro_2a(unpack(ast, 2)) end local function _369_() if built_in_3f(macro_2a) then return tostring else return debug.traceback end end ok, transformed = xpcall(_368_, _369_()) local function _370_(...) return propagate_trace_info(ast, quote_literal_nils(...)) end utils["walk-tree"](transformed, _370_) scopes.macro = old_scope assert_compile(ok, transformed, ast) utils.hook("macroexpand", ast, transformed, scope) if (_3fonce or not transformed) then return transformed else return macroexpand_2a(transformed, scope) end else local _ = _366_0 return ast end end local function compile_special(ast, scope, parent, opts, special) local exprs = (special(ast, scope, parent, opts) or utils.expr("nil", "literal")) local exprs0 = nil if ("table" ~= type(exprs)) then exprs0 = utils.expr(exprs, "expression") else exprs0 = exprs end local exprs2 = nil if utils["expr?"](exprs0) then exprs2 = {exprs0} else exprs2 = exprs0 end if not exprs2.returned then return handle_compile_opts(exprs2, parent, opts, ast) elseif (opts.tail or opts.target) then return {returned = true} else return exprs2 end end local function callable_3f(_376_0, ctype, callee) local _377_ = _376_0 local call_ast = _377_[1] if ("literal" == ctype) then return ("\"" == string.sub(callee, 1, 1)) else return (utils["sym?"](call_ast) or utils["list?"](call_ast)) end end local function compile_function_call(ast, scope, parent, opts, compile1, len) local _379_ = compile1(ast[1], scope, parent, {nval = 1})[1] local callee = _379_[1] local ctype = _379_["type"] local fargs = {} assert_compile(callable_3f(ast, ctype, callee), ("cannot call literal value " .. tostring(ast[1])), ast) for i = 2, len do local subexprs = nil local _380_ if (i ~= len) then _380_ = 1 else _380_ = nil end subexprs = compile1(ast[i], scope, parent, {nval = _380_}) table.insert(fargs, subexprs[1]) if (i == len) then for j = 2, #subexprs do table.insert(fargs, subexprs[j]) end else keep_side_effects(subexprs, parent, 2, ast[i]) end end local pat = nil if ("literal" == ctype) then pat = "(%s)(%s)" else pat = "%s(%s)" end local call = string.format(pat, tostring(callee), exprs1(fargs)) return handle_compile_opts({utils.expr(call, "statement")}, parent, opts, ast) end local function compile_call(ast, scope, parent, opts, compile1) utils.hook("call", ast, scope) local len = #ast local first = ast[1] local multi_sym_parts = utils["multi-sym?"](first) local special = (utils["sym?"](first) and scope.specials[tostring(first)]) assert_compile((0 < len), "expected a function, macro, or special to call", ast) if special then return compile_special(ast, scope, parent, opts, special) elseif (multi_sym_parts and multi_sym_parts["multi-sym-method-call"]) then local table_with_method = table.concat({unpack(multi_sym_parts, 1, (#multi_sym_parts - 1))}, ".") local method_to_call = multi_sym_parts[#multi_sym_parts] local new_ast = utils.list(utils.sym(":", ast), utils.sym(table_with_method, ast), method_to_call, select(2, unpack(ast))) return compile1(new_ast, scope, parent, opts) else return compile_function_call(ast, scope, parent, opts, compile1, len) end end local function compile_varg(ast, scope, parent, opts) local _385_ if scope.hashfn then _385_ = "use $... in hashfn" else _385_ = "unexpected vararg" end assert_compile(scope.vararg, _385_, ast) return handle_compile_opts({utils.expr("...", "varg")}, parent, opts, ast) end local function compile_sym(ast, scope, parent, opts) local multi_sym_parts = utils["multi-sym?"](ast) assert_compile(not (multi_sym_parts and multi_sym_parts["multi-sym-method-call"]), "multisym method calls may only be in call position", ast) local e = nil if (ast[1] == "nil") then e = utils.expr("nil", "literal") else e = symbol_to_expression(ast, scope, true) end return handle_compile_opts({e}, parent, opts, ast) end local view_opts = nil do local nan = tostring((0 / 0)) local _388_ if (45 == nan:byte()) then _388_ = "(0/0)" else _388_ = "(- (0/0))" end local _390_ if (45 == nan:byte()) then _390_ = "(- (0/0))" else _390_ = "(0/0)" end view_opts = {["negative-infinity"] = "(-1/0)", ["negative-nan"] = _388_, infinity = "(1/0)", nan = _390_} end local function compile_scalar(ast, _scope, parent, opts) local compiled = nil do local _392_0 = type(ast) if (_392_0 == "nil") then compiled = "nil" elseif (_392_0 == "boolean") then compiled = tostring(ast) elseif (_392_0 == "string") then compiled = serialize_string(ast) elseif (_392_0 == "number") then compiled = view(ast, view_opts) else compiled = nil end end return handle_compile_opts({utils.expr(compiled, "literal")}, parent, opts) end local function compile_table(ast, scope, parent, opts, compile1) local function escape_key(k) if ((type(k) == "string") and utils["valid-lua-identifier?"](k)) then return k else local _394_ = compile1(k, scope, parent, {nval = 1}) local compiled = _394_[1] return ("[" .. tostring(compiled) .. "]") end end local keys = {} local buffer = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i, elem in ipairs(ast) do local val_19_ = nil do local nval = ((nil ~= ast[(i + 1)]) and 1) keys[i] = true val_19_ = exprs1(compile1(elem, scope, parent, {nval = nval})) end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end buffer = tbl_17_ end do local tbl_17_ = buffer local i_18_ = #tbl_17_ for k in utils.stablepairs(ast) do local val_19_ = nil if not keys[k] then local _397_ = compile1(ast[k], scope, parent, {nval = 1}) local v = _397_[1] val_19_ = string.format("%s = %s", escape_key(k), tostring(v)) else val_19_ = nil end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end end return handle_compile_opts({utils.expr(("{" .. table.concat(buffer, ", ") .. "}"), "expression")}, parent, opts, ast) end local function compile1(ast, scope, parent, _3fopts) local opts = (_3fopts or {}) local ast0 = macroexpand_2a(ast, scope) if utils["list?"](ast0) then return compile_call(ast0, scope, parent, opts, compile1) elseif utils["varg?"](ast0) then return compile_varg(ast0, scope, parent, opts) elseif utils["sym?"](ast0) then return compile_sym(ast0, scope, parent, opts) elseif (type(ast0) == "table") then return compile_table(ast0, scope, parent, opts, compile1) elseif ((type(ast0) == "nil") or (type(ast0) == "boolean") or (type(ast0) == "number") or (type(ast0) == "string")) then return compile_scalar(ast0, scope, parent, opts) else return assert_compile(false, ("could not compile value of type " .. type(ast0)), ast0) end end local function destructure(to, from, ast, scope, parent, opts) local opts0 = (opts or {}) local _401_ = opts0 local declaration = _401_["declaration"] local forceglobal = _401_["forceglobal"] local forceset = _401_["forceset"] local isvar = _401_["isvar"] local symtype = _401_["symtype"] local symtype0 = ("_" .. (symtype or "dst")) local setter = nil if declaration then setter = "local %s = %s" else setter = "%s = %s" end local deferred_scope_changes = {manglings = {}, symmeta = {}} local function getname(symbol, ast0) local raw = symbol[1] assert_compile(not (opts0.nomulti and utils["multi-sym?"](raw)), ("unexpected multi symbol " .. raw), ast0) if declaration then return declare_local(symbol, scope, symbol, isvar, deferred_scope_changes) else local parts = (utils["multi-sym?"](raw) or {raw}) local _403_ = parts local first = _403_[1] local meta = scope.symmeta[first] assert_compile(not raw:find(":"), "cannot set method sym", symbol) if ((#parts == 1) and not forceset) then assert_compile(not (forceglobal and meta), string.format("global %s conflicts with local", tostring(symbol)), symbol) assert_compile(not (meta and not meta.var), ("expected var " .. raw), symbol) end assert_compile((meta or not opts0.noundef or (scope.hashfn and ("$" == first)) or global_allowed_3f(first)), ("expected local " .. first), symbol) if forceglobal then assert_compile(not scope.symmeta[scope.unmanglings[raw]], ("global " .. raw .. " conflicts with local"), symbol) scope.manglings[raw] = global_mangling(raw) scope.unmanglings[global_mangling(raw)] = raw local _406_ do local _405_0 = utils.root.options if (nil ~= _405_0) then _405_0 = _405_0.allowedGlobals end _406_ = _405_0 end if _406_ then local _409_ do local _408_0 = utils.root.options if (nil ~= _408_0) then _408_0 = _408_0.allowedGlobals end _409_ = _408_0 end table.insert(_409_, raw) end end return symbol_to_expression(symbol, scope)[1] end end local function compile_top_target(lvalues) local inits = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, l in ipairs(lvalues) do local val_19_ = nil if scope.manglings[l] then val_19_ = l else val_19_ = "nil" end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end inits = tbl_17_ end local init = table.concat(inits, ", ") local lvalue = table.concat(lvalues, ", ") local plast = parent[#parent] local plen = #parent local ret = compile1(from, scope, parent, {target = lvalue}) if declaration then for pi = plen, #parent do if (parent[pi] == plast) then plen = pi end end if ((#parent == (plen + 1)) and parent[#parent].leaf) then parent[#parent]["leaf"] = ("local " .. parent[#parent].leaf) elseif (init == "nil") then table.insert(parent, (plen + 1), {ast = ast, leaf = ("local " .. lvalue)}) else table.insert(parent, (plen + 1), {ast = ast, leaf = ("local " .. lvalue .. " = " .. init)}) end end return ret end local function destructure_sym(left, rightexprs, up1, top_3f) local lname = getname(left, up1) check_binding_valid(left, scope, left) if top_3f then return compile_top_target({lname}) else return emit(parent, setter:format(lname, exprs1(rightexprs)), left) end end local function dynamic_set_target(_420_0) local _421_ = _420_0 local _ = _421_[1] local target = _421_[2] local keys = {(table.unpack or unpack)(_421_, 3)} assert_compile(utils["sym?"](target), "dynamic set needs symbol target", ast) assert_compile(next(keys), "dynamic set needs at least one key", ast) local keys0 = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _0, k in ipairs(keys) do local val_19_ = tostring(compile1(k, scope, parent, {nval = 1})[1]) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end keys0 = tbl_17_ end return string.format("%s[%s]", tostring(symbol_to_expression(target, scope, true)), table.concat(keys0, "][")) end local function destructure_values(left, rightexprs, up1, destructure1, top_3f) local left_names, tables = {}, {} for i, name in ipairs(left) do if utils["sym?"](name) then table.insert(left_names, getname(name, up1)) elseif utils["call-of?"](name, ".") then table.insert(left_names, dynamic_set_target(name)) else local symname = gensym(scope, symtype0) table.insert(left_names, symname) tables[i] = {name, utils.expr(symname, "sym")} end end assert_compile(left[1], "must provide at least one value", left) if top_3f then compile_top_target(left_names) elseif utils["expr?"](rightexprs) then emit(parent, setter:format(table.concat(left_names, ","), exprs1(rightexprs)), left) else local names = table.concat(left_names, ",") local target = nil if declaration then target = ("local " .. names) else target = names end emit(parent, compile1(rightexprs, scope, parent, {target = target}), left) end for _, pair in utils.stablepairs(tables) do destructure1(pair[1], {pair[2]}, left) end return nil end local unpack_fn = "function (t, k)\n return ((getmetatable(t) or {}).__fennelrest\n or function (t, k) return {(table.unpack or unpack)(t, k)} end)(t, k)\n end" local unpack_ks = "function (t, e)\n local rest = {}\n for k, v in pairs(t) do\n if not e[k] then rest[k] = v end\n end\n return rest\n end" local function destructure_kv_rest(s, v, left, excluded_keys, destructure1) local exclude_str = nil local _426_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, k in ipairs(excluded_keys) do local val_19_ = string.format("[%s] = true", serialize_string(k)) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _426_ = tbl_17_ end exclude_str = table.concat(_426_, ", ") local subexpr = utils.expr(string.format(string.gsub(("(" .. unpack_ks .. ")(%s, {%s})"), "\n%s*", " "), s, exclude_str), "expression") return destructure1(v, {subexpr}, left) end local function destructure_rest(s, k, left, destructure1) local unpack_str = ("(" .. unpack_fn .. ")(%s, %s)") local formatted = string.format(string.gsub(unpack_str, "\n%s*", " "), s, k) local subexpr = utils.expr(formatted, "expression") local function _428_() local next_symbol = left[(k + 2)] return ((nil == next_symbol) or utils["sym?"](next_symbol, "&as")) end assert_compile((utils["sequence?"](left) and _428_()), "expected rest argument before last parameter", left) return destructure1(left[(k + 1)], {subexpr}, left) end local function optimize_table_destructure_3f(left, right) local function _429_() local all = next(left) for _, d in ipairs(left) do if not all then break end all = ((utils["sym?"](d) and not tostring(d):find("^&")) or (utils["list?"](d) and utils["sym?"](d[1], "."))) end return all end return (utils["sequence?"](left) and utils["sequence?"](right) and _429_()) end local function destructure_table(left, rightexprs, top_3f, destructure1, up1) assert_compile((("table" == type(rightexprs)) and not utils["sym?"](rightexprs, "nil")), "could not destructure literal", left) if optimize_table_destructure_3f(left, rightexprs) then return destructure_values(utils.list(unpack(left)), utils.list(utils.sym("values"), unpack(rightexprs)), up1, destructure1) else local right = nil do local _430_0 = nil if top_3f then _430_0 = exprs1(compile1(from, scope, parent)) else _430_0 = exprs1(rightexprs) end if (_430_0 == "") then right = "nil" elseif (nil ~= _430_0) then local right0 = _430_0 right = right0 else right = nil end end local s = nil if utils["sym?"](rightexprs) then s = right else s = gensym(scope, symtype0) end local excluded_keys = {} if not utils["sym?"](rightexprs) then emit(parent, string.format("local %s = %s", s, right), left) end for k, v in utils.stablepairs(left) do if not (("number" == type(k)) and tostring(left[(k - 1)]):find("^&")) then if (utils["sym?"](k) and (tostring(k) == "&")) then destructure_kv_rest(s, v, left, excluded_keys, destructure1) elseif (utils["sym?"](v) and (tostring(v) == "&")) then destructure_rest(s, k, left, destructure1) elseif (utils["sym?"](k) and (tostring(k) == "&as")) then destructure_sym(v, {utils.expr(tostring(s))}, left) elseif (utils["sequence?"](left) and (tostring(v) == "&as")) then local _, next_sym, trailing = select(k, unpack(left)) assert_compile((nil == trailing), "expected &as argument before last parameter", left) destructure_sym(next_sym, {utils.expr(tostring(s))}, left) else local key = nil if (type(k) == "string") then key = serialize_string(k) else key = k end local subexpr = utils.expr(("%s[%s]"):format(s, key), "expression") if (type(k) == "string") then table.insert(excluded_keys, k) end destructure1(v, subexpr, left) end end end return nil end end local function destructure1(left, rightexprs, up1, top_3f) if (utils["sym?"](left) and (left[1] ~= "nil")) then destructure_sym(left, rightexprs, up1, top_3f) elseif utils["table?"](left) then destructure_table(left, rightexprs, top_3f, destructure1, up1) elseif utils["call-of?"](left, ".") then destructure_values({left}, rightexprs, up1, destructure1) elseif utils["list?"](left) then assert_compile(top_3f, "can't nest multi-value destructuring", left) destructure_values(left, rightexprs, up1, destructure1, true) else assert_compile(false, string.format("unable to bind %s %s", type(left), tostring(left)), (((type(up1[2]) == "table") and up1[2]) or up1)) end return (top_3f and {returned = true}) end local ret = destructure1(to, from, ast, true) utils.hook("destructure", from, to, scope, opts0) apply_deferred_scope_changes(scope, deferred_scope_changes, ast) return ret end local function require_include(ast, scope, parent, opts) opts.fallback = function(e, no_warn) if not no_warn then utils.warn(("include module not found, falling back to require: %s"):format(tostring(e)), ast) end return utils.expr(string.format("require(%s)", tostring(e)), "statement") end return scopes.global.specials.include(ast, scope, parent, opts) end local function compile_asts(asts, options) local opts = utils.copy(options) local scope = nil if ("_COMPILER" == opts.scope) then scope = scopes.compiler elseif opts.scope then scope = opts.scope else scope = make_scope(scopes.global) end local chunk = {} if opts.requireAsInclude then scope.specials.require = require_include end if opts.assertAsRepl then scope.macros.assert = scope.macros["assert-repl"] end local _445_ = utils.root _445_["set-reset"](_445_) utils.root.chunk, utils.root.scope, utils.root.options = chunk, scope, opts for i = 1, #asts do local exprs = compile1(asts[i], scope, chunk, {nval = (((i < #asts) and 0) or nil), tail = (i == #asts)}) keep_side_effects(exprs, chunk, nil, asts[i]) if (i == #asts) then utils.hook("chunk", asts[i], scope) end end utils.root.reset() return flatten(chunk, opts) end local function compile_stream(stream, _3fopts) local opts = (_3fopts or {}) local asts = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, ast in parser.parser(stream, opts.filename, opts) do local val_19_ = ast if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end asts = tbl_17_ end return compile_asts(asts, opts) end local function compile_string(str, _3fopts) return compile_stream(parser["string-stream"](str, _3fopts), _3fopts) end local function compile(from, _3fopts) local _448_0 = type(from) if (_448_0 == "userdata") then local function _449_() local _450_0 = from:read(1) if (nil ~= _450_0) then return _450_0:byte() else return _450_0 end end return compile_stream(_449_, _3fopts) elseif (_448_0 == "function") then return compile_stream(from, _3fopts) else local _ = _448_0 return compile_asts({from}, _3fopts) end end local function traceback_frame(info) if ((info.what == "C") and info.name) then return string.format("\9[C]: in function '%s'", info.name) elseif (info.what == "C") then return "\9[C]: in ?" else local remap = sourcemap[info.source] if (remap and remap[info.currentline]) then if ((remap[info.currentline][1] or "unknown") ~= "unknown") then info.short_src = sourcemap[("@" .. remap[info.currentline][1])].short_src else info.short_src = remap.short_src end info.currentline = (remap[info.currentline][2] or -1) end if (info.what == "Lua") then local function _455_() if info.name then return ("'" .. info.name .. "'") else return "?" end end return string.format("\9%s:%d: in function %s", info.short_src, info.currentline, _455_()) elseif (info.short_src == "(tail call)") then return " (tail call)" else return string.format("\9%s:%d: in main chunk", info.short_src, info.currentline) end end end local lua_getinfo = debug.getinfo local function traceback(_3fmsg, _3fstart) local _458_0 = type(_3fmsg) if ((_458_0 == "nil") or (_458_0 == "string")) then local msg = (_3fmsg or "") if ((msg:find("^%g+:%d+:%d+ Compile error:.*") or msg:find("^%g+:%d+:%d+ Parse error:.*")) and not utils["debug-on?"]("trace")) then return msg else local lines = {} if (msg:find("^%g+:%d+:%d+ Compile error:") or msg:find("^%g+:%d+:%d+ Parse error:")) then table.insert(lines, msg) else local newmsg = msg:gsub("^[^:]*:%d+:%s+", "runtime error: ") table.insert(lines, newmsg) end table.insert(lines, "stack traceback:") local done_3f, level = false, (_3fstart or 2) while not done_3f do do local _460_0 = lua_getinfo(level, "Sln") if (_460_0 == nil) then done_3f = true elseif (nil ~= _460_0) then local info = _460_0 table.insert(lines, traceback_frame(info)) end end level = (level + 1) end return table.concat(lines, "\n") end else local _ = _458_0 return _3fmsg end end local function getinfo(thread_or_level, ...) local thread_or_level0 = nil if ("number" == type(thread_or_level)) then thread_or_level0 = (1 + thread_or_level) else thread_or_level0 = thread_or_level end local info = lua_getinfo(thread_or_level0, ...) local mapped = (info and sourcemap[info.source]) if mapped then for _, key in ipairs({"currentline", "linedefined", "lastlinedefined"}) do local mapped_value = nil do local _465_0 = mapped if (nil ~= _465_0) then _465_0 = _465_0[info[key]] end if (nil ~= _465_0) then _465_0 = _465_0[2] end mapped_value = _465_0 end if (info[key] and mapped_value) then info[key] = mapped_value end end if info.activelines then local tbl_14_ = {} for line in pairs(info.activelines) do local k_15_, v_16_ = mapped[line][2], true if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end info.activelines = tbl_14_ end if (info.what == "Lua") then info.what = "Fennel" end end return info end local function mixed_concat(t, joiner) local seen = {} local ret, s = "", "" for k, v in ipairs(t) do table.insert(seen, k) ret = (ret .. s .. v) s = joiner end for k, v in utils.stablepairs(t) do if not seen[k] then ret = (ret .. s .. "[" .. k .. "]" .. "=" .. v) s = joiner end end return ret end local function do_quote(form, scope, parent, runtime_3f) local function quote_all(form0, discard_non_numbers) local tbl_14_ = {} for k, v in utils.stablepairs(form0) do local k_15_, v_16_ = nil, nil if (type(k) == "number") then k_15_, v_16_ = k, do_quote(v, scope, parent, runtime_3f) elseif not discard_non_numbers then k_15_, v_16_ = do_quote(k, scope, parent, runtime_3f), do_quote(v, scope, parent, runtime_3f) else k_15_, v_16_ = nil end if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end return tbl_14_ end if utils["varg?"](form) then assert_compile(not runtime_3f, "quoted ... may only be used at compile time", form) return "_VARARG" elseif utils["sym?"](form) then local filename = nil if form.filename then filename = string.format("%q", form.filename) else filename = "nil" end local symstr = tostring(form) assert_compile(not runtime_3f, "symbols may only be used at compile time", form) if (symstr:find("#$") or symstr:find("#[:.]")) then return string.format("_G.sym('%s', {filename=%s, line=%s})", autogensym(symstr, scope), filename, (form.line or "nil")) else return string.format("_G.sym('%s', {quoted=true, filename=%s, line=%s})", symstr, filename, (form.line or "nil")) end elseif utils["call-of?"](form, "unquote") then local res = unpack(compile1(form[2], scope, parent)) return res[1] elseif utils["list?"](form) then local mapped = quote_all(form, true) local filename = nil if form.filename then filename = string.format("%q", form.filename) else filename = "nil" end assert_compile(not runtime_3f, "lists may only be used at compile time", form) return string.format(("setmetatable({filename=%s, line=%s, bytestart=%s, %s}" .. ", getmetatable(_G.list()))"), filename, (form.line or "nil"), (form.bytestart or "nil"), mixed_concat(mapped, ", ")) elseif utils["sequence?"](form) then local mapped_str = mixed_concat(quote_all(form), ", ") local source = getmetatable(form) local filename = nil if source.filename then filename = ("%q"):format(source.filename) else filename = "nil" end if runtime_3f then return string.format("{%s}", mapped_str) else return string.format("setmetatable({%s}, {filename=%s, line=%s, sequence=%s})", mapped_str, filename, (source.line or "nil"), "(getmetatable(_G.sequence()))['sequence']") end elseif (type(form) == "table") then local source = getmetatable(form) local filename = nil if source.filename then filename = string.format("%q", source.filename) else filename = "nil" end local function _482_() if source then return source.line else return "nil" end end return string.format("setmetatable({%s}, {filename=%s, line=%s})", mixed_concat(quote_all(form), ", "), filename, _482_()) elseif (type(form) == "string") then return serialize_string(form) else return tostring(form) end end return {["apply-deferred-scope-changes"] = apply_deferred_scope_changes, ["check-binding-valid"] = check_binding_valid, ["compile-stream"] = compile_stream, ["compile-string"] = compile_string, ["declare-local"] = declare_local, ["do-quote"] = do_quote, ["global-allowed?"] = global_allowed_3f, ["global-mangling"] = global_mangling, ["global-unmangling"] = global_unmangling, ["keep-side-effects"] = keep_side_effects, ["make-scope"] = make_scope, ["require-include"] = require_include, ["symbol-to-expression"] = symbol_to_expression, assert = assert_compile, autogensym = autogensym, compile = compile, compile1 = compile1, destructure = destructure, emit = emit, gensym = gensym, getinfo = getinfo, macroexpand = macroexpand_2a, metadata = make_metadata(), scopes = scopes, sourcemap = sourcemap, traceback = traceback}endpackage.preload["fennel.friend"] = package.preload["fennel.friend"] or function(...) local _193_ = require("fennel.utils") local utils = _193_ local unpack = _193_["unpack"] local utf8_ok_3f, utf8 = pcall(require, "utf8") local suggestions = {["$ and $... in hashfn are mutually exclusive"] = {"modifying the hashfn so it only contains $... or $, $1, $2, $3, etc"}, ["can't introduce (.*) here"] = {"declaring the local at the top-level"}, ["can't start multisym segment with a digit"] = {"removing the digit", "adding a non-digit before the digit"}, ["cannot call literal value"] = {"checking for typos", "checking for a missing function name", "making sure to use prefix operators, not infix"}, ["could not compile value of type "] = {"debugging the macro you're calling to return a list or table"}, ["could not read number (.*)"] = {"removing the non-digit character", "beginning the identifier with a non-digit if it is not meant to be a number"}, ["expected a function.* to call"] = {"removing the empty parentheses", "using square brackets if you want an empty table"}, ["expected at least one pattern/body pair"] = {"adding a pattern and a body to execute when the pattern matches"}, ["expected binding and iterator"] = {"making sure you haven't omitted a local name or iterator"}, ["expected binding sequence"] = {"placing a table here in square brackets containing identifiers to bind"}, ["expected body expression"] = {"putting some code in the body of this form after the bindings"}, ["expected each macro to be function"] = {"ensuring that the value for each key in your macros table contains a function", "avoid defining nested macro tables"}, ["expected even number of name/value bindings"] = {"finding where the identifier or value is missing"}, ["expected even number of pattern/body pairs"] = {"checking that every pattern has a body to go with it", "adding _ before the final body"}, ["expected even number of values in table literal"] = {"removing a key", "adding a value"}, ["expected local"] = {"looking for a typo", "looking for a local which is used out of its scope"}, ["expected macros to be table"] = {"ensuring your macro definitions return a table"}, ["expected parameters"] = {"adding function parameters as a list of identifiers in brackets"}, ["expected range to include start and stop"] = {"adding missing arguments"}, ["expected rest argument before last parameter"] = {"moving & to right before the final identifier when destructuring"}, ["expected symbol for function parameter: (.*)"] = {"changing %s to an identifier instead of a literal value"}, ["expected var (.*)"] = {"declaring %s using var instead of let/local", "introducing a new local instead of changing the value of %s"}, ["expected vararg as last parameter"] = {"moving the \"...\" to the end of the parameter list"}, ["expected whitespace before opening delimiter"] = {"adding whitespace"}, ["global (.*) conflicts with local"] = {"renaming local %s"}, ["invalid character: (.)"] = {"deleting or replacing %s", "avoiding reserved characters like \", \\, ', ~, ;, @, `, and comma"}, ["local (.*) was overshadowed by a special form or macro"] = {"renaming local %s"}, ["macro not found in macro module"] = {"checking the keys of the imported macro module's returned table"}, ["macro tried to bind (.*) without gensym"] = {"changing to %s# when introducing identifiers inside macros"}, ["malformed multisym"] = {"ensuring each period or colon is not followed by another period or colon"}, ["may only be used at compile time"] = {"moving this to inside a macro if you need to manipulate symbols/lists", "using square brackets instead of parens to construct a table"}, ["method must be last component"] = {"using a period instead of a colon for field access", "removing segments after the colon", "making the method call, then looking up the field on the result"}, ["mismatched closing delimiter (.), expected (.)"] = {"replacing %s with %s", "deleting %s", "adding matching opening delimiter earlier"}, ["missing subject"] = {"adding an item to operate on"}, ["multisym method calls may only be in call position"] = {"using a period instead of a colon to reference a table's fields", "putting parens around this"}, ["tried to reference a macro without calling it"] = {"renaming the macro so as not to conflict with locals"}, ["tried to reference a special form without calling it"] = {"making sure to use prefix operators, not infix", "wrapping the special in a function if you need it to be first class"}, ["tried to use unquote outside quote"] = {"moving the form to inside a quoted form", "removing the comma"}, ["tried to use vararg with operator"] = {"accumulating over the operands"}, ["unable to bind (.*)"] = {"replacing the %s with an identifier"}, ["unexpected arguments"] = {"removing an argument", "checking for typos"}, ["unexpected closing delimiter (.)"] = {"deleting %s", "adding matching opening delimiter earlier"}, ["unexpected iterator clause"] = {"removing an argument", "checking for typos"}, ["unexpected multi symbol (.*)"] = {"removing periods or colons from %s"}, ["unexpected vararg"] = {"putting \"...\" at the end of the fn parameters if the vararg was intended"}, ["unknown identifier: (.*)"] = {"looking to see if there's a typo", "using the _G table instead, eg. _G.%s if you really want a global", "moving this code to somewhere that %s is in scope", "binding %s as a local in the scope of this code"}, ["unused local (.*)"] = {"renaming the local to _%s if it is meant to be unused", "fixing a typo so %s is used", "disabling the linter which checks for unused locals"}, ["use of global (.*) is aliased by a local"] = {"renaming local %s", "refer to the global using _G.%s instead of directly"}} local function suggest(msg) local s = nil for pat, sug in pairs(suggestions) do if s then break end local matches = {msg:match(pat)} if next(matches) then local tbl_17_ = {} local i_18_ = #tbl_17_ for _, s0 in ipairs(sug) do local val_19_ = s0:format(unpack(matches)) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end s = tbl_17_ else s = nil end end return s end local function read_line(filename, line, _3fsource) if _3fsource then local matcher = string.gmatch((_3fsource .. "\n"), "(.-)(\13?\n)") for _ = 2, line do matcher() end return matcher() else local f = assert(_G.io.open(filename)) local function close_handlers_10_(ok_11_, ...) f:close() if ok_11_ then return ... else return error(..., 0) end end local function _197_() for _ = 2, line do f:read() end return f:read() end return close_handlers_10_(_G.xpcall(_197_, (package.loaded.fennel or debug).traceback)) end end local function sub(str, start, _end) if ((_end < start) or (#str < start)) then return "" elseif utf8_ok_3f then return string.sub(str, utf8.offset(str, start), ((utf8.offset(str, (_end + 1)) or (utf8.len(str) + 1)) - 1)) else return string.sub(str, start, math.min(_end, str:len())) end end local function highlight_line(codeline, col, _3fendcol, opts) if ((opts and (false == opts["error-pinpoint"])) or (os and os.getenv and os.getenv("NO_COLOR"))) then return codeline else local _200_ = (opts or {}) local error_pinpoint = _200_["error-pinpoint"] local endcol = (_3fendcol or col) local eol = nil if utf8_ok_3f then eol = utf8.len(codeline) else eol = string.len(codeline) end local _202_ = (error_pinpoint or {"\27[7m", "\27[0m"}) local open = _202_[1] local close = _202_[2] return (sub(codeline, 1, col) .. open .. sub(codeline, (col + 1), (endcol + 1)) .. close .. sub(codeline, (endcol + 2), eol)) end end local function friendly_msg(msg, _204_0, source, opts) local _205_ = _204_0 local col = _205_["col"] local endcol = _205_["endcol"] local endline = _205_["endline"] local filename = _205_["filename"] local line = _205_["line"] local ok, codeline = pcall(read_line, filename, line, source) local endcol0 = nil if (ok and codeline and (line ~= endline)) then endcol0 = #codeline else endcol0 = endcol end local out = {msg, ""} if (ok and codeline) then if col then table.insert(out, highlight_line(codeline, col, endcol0, opts)) else table.insert(out, codeline) end end for _, suggestion in ipairs((suggest(msg) or {})) do table.insert(out, ("* Try %s."):format(suggestion)) end return table.concat(out, "\n") end local function assert_compile(condition, msg, ast, source, opts) if not condition then local _209_ = utils["ast-source"](ast) local col = _209_["col"] local filename = _209_["filename"] local line = _209_["line"] error(friendly_msg(("%s:%s:%s: Compile error: %s"):format((filename or "unknown"), (line or "?"), (col or "?"), msg), utils["ast-source"](ast), source, opts), 0) end return condition end local function parse_error(msg, filename, line, col, source, opts) return error(friendly_msg(("%s:%s:%s: Parse error: %s"):format(filename, line, col, msg), {col = col, filename = filename, line = line}, source, opts), 0) end return {["assert-compile"] = assert_compile, ["parse-error"] = parse_error}endpackage.preload["fennel.parser"] = package.preload["fennel.parser"] or function(...) local _192_ = require("fennel.utils") local utils = _192_ local unpack = _192_["unpack"] local friend = require("fennel.friend") local function granulate(getchunk) local c, index, done_3f = "", 1, false local function _211_(parser_state) if not done_3f then if (index <= #c) then local b = c:byte(index) index = (index + 1) return b else local _212_0 = getchunk(parser_state) if (nil ~= _212_0) then local input = _212_0 c, index = input, 2 return c:byte() else local _ = _212_0 done_3f = true return nil end end end end local function _216_() c = "" return nil end return _211_, _216_ end local function string_stream(str, _3foptions) local str0 = str:gsub("^#!", ";;") if _3foptions then _3foptions.source = str0 end local index = 1 local function _218_() local r = str0:byte(index) index = (index + 1) return r end return _218_ end local delims = {[123] = 125, [125] = true, [40] = 41, [41] = true, [91] = 93, [93] = true} local function sym_char_3f(b) local b0 = nil if ("number" == type(b)) then b0 = b else b0 = string.byte(b) end return ((32 < b0) and not delims[b0] and (b0 ~= 127) and (b0 ~= 34) and (b0 ~= 39) and (b0 ~= 126) and (b0 ~= 59) and (b0 ~= 44) and (b0 ~= 64) and (b0 ~= 96)) end local prefixes = {[35] = "hashfn", [39] = "quote", [44] = "unquote", [96] = "quote"} local nan, negative_nan = nil, nil if (45 == string.byte(tostring((0 / 0)))) then nan, negative_nan = ( - (0 / 0)), (0 / 0) else nan, negative_nan = (0 / 0), ( - (0 / 0)) end local function char_starter_3f(b) return (((1 < b) and (b < 127)) or ((192 < b) and (b < 247))) end local function parser_fn(getbyte, filename, _221_0) local _222_ = _221_0 local options = _222_ local comments = _222_["comments"] local source = _222_["source"] local unfriendly = _222_["unfriendly"] local stack = {} local line, byteindex, col, prev_col, lastb = 1, 0, 0, 0, nil local function ungetb(ub) if char_starter_3f(ub) then col = (col - 1) end if (ub == 10) then line, col = (line - 1), prev_col end byteindex = (byteindex - 1) lastb = ub return nil end local function getb() local r = nil if lastb then r, lastb = lastb, nil else r = getbyte({["stack-size"] = #stack}) end if r then byteindex = (byteindex + 1) end if (r and char_starter_3f(r)) then col = (col + 1) end if (r == 10) then line, col, prev_col = (line + 1), 0, col end return r end local function warn(...) return (options.warn or utils.warn)(...) end local function whitespace_3f(b) local function _230_() local _229_0 = options.whitespace if (nil ~= _229_0) then _229_0 = _229_0[b] end return _229_0 end return ((b == 32) or ((9 <= b) and (b <= 13)) or _230_()) end local function parse_error(msg, _3fcol_adjust) local col0 = (col + (_3fcol_adjust or -1)) if (nil == utils["hook-opts"]("parse-error", options, msg, filename, (line or "?"), col0, source, utils.root.reset)) then utils.root.reset() if unfriendly then return error(string.format("%s:%s:%s: Parse error: %s", filename, (line or "?"), col0, msg), 0) else return friend["parse-error"](msg, filename, (line or "?"), col0, source, options) end end end local function parse_stream() local whitespace_since_dispatch, done_3f, retval = true local function set_source_fields(source0) source0.byteend, source0.endcol, source0.endline = byteindex, (col - 1), line return nil end local function dispatch(v, _3fsource, _3fraw) whitespace_since_dispatch = false local v0 = nil do local _234_0 = utils["hook-opts"]("parse-form", options, v, _3fsource, _3fraw, stack) if (nil ~= _234_0) then local hookv = _234_0 v0 = hookv else local _ = _234_0 v0 = v end end local _236_0 = stack[#stack] if (_236_0 == nil) then retval, done_3f = v0, true return nil elseif ((_G.type(_236_0) == "table") and (nil ~= _236_0.prefix)) then local prefix = _236_0.prefix local source0 = nil do local _237_0 = table.remove(stack) set_source_fields(_237_0) source0 = _237_0 end local list = utils.list(utils.sym(prefix, source0), v0) return dispatch(utils.copy(source0, list)) elseif (nil ~= _236_0) then local top = _236_0 return table.insert(top, v0) end end local function badend() local closers = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, _239_0 in ipairs(stack) do local _240_ = _239_0 local closer = _240_["closer"] local val_19_ = closer if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end closers = tbl_17_ end local _242_ if (#stack == 1) then _242_ = "" else _242_ = "s" end return parse_error(string.format("expected closing delimiter%s %s", _242_, string.char(unpack(closers))), 0) end local function skip_whitespace(b, close_table) if (b and whitespace_3f(b)) then whitespace_since_dispatch = true return skip_whitespace(getb(), close_table) elseif (not b and next(stack)) then badend() for i = #stack, 2, -1 do close_table(stack[i].closer) end return stack[1].closer else return b end end local function parse_comment(b, contents) if (b and (10 ~= b)) then local function _245_() table.insert(contents, string.char(b)) return contents end return parse_comment(getb(), _245_()) elseif comments then ungetb(10) return dispatch(utils.comment(table.concat(contents), {filename = filename, line = line})) end end local function open_table(b) if not whitespace_since_dispatch then parse_error(("expected whitespace before opening delimiter " .. string.char(b))) end return table.insert(stack, {bytestart = byteindex, closer = delims[b], col = (col - 1), filename = filename, line = line}) end local function close_list(list) return dispatch(setmetatable(list, getmetatable(utils.list()))) end local function close_sequence(tbl) local mt = getmetatable(utils.sequence()) for k, v in pairs(tbl) do if ("number" ~= type(k)) then mt[k] = v tbl[k] = nil end end return dispatch(setmetatable(tbl, mt)) end local function add_comment_at(comments0, index, node) local _249_0 = comments0[index] if (nil ~= _249_0) then local existing = _249_0 return table.insert(existing, node) else local _ = _249_0 comments0[index] = {node} return nil end end local function next_noncomment(tbl, i) if utils["comment?"](tbl[i]) then return next_noncomment(tbl, (i + 1)) elseif utils["sym?"](tbl[i], ":") then return tostring(tbl[(i + 1)]) else return tbl[i] end end local function extract_comments(tbl) local comments0 = {keys = {}, last = {}, values = {}} while utils["comment?"](tbl[#tbl]) do table.insert(comments0.last, 1, table.remove(tbl)) end local last_key_3f = false for i, node in ipairs(tbl) do if not utils["comment?"](node) then last_key_3f = not last_key_3f elseif last_key_3f then add_comment_at(comments0.values, next_noncomment(tbl, i), node) else add_comment_at(comments0.keys, next_noncomment(tbl, i), node) end end for i = #tbl, 1, -1 do if utils["comment?"](tbl[i]) then table.remove(tbl, i) end end return comments0 end local function close_curly_table(tbl) local comments0 = extract_comments(tbl) local keys = {} local val = {} if ((#tbl % 2) ~= 0) then byteindex = (byteindex - 1) parse_error("expected even number of values in table literal") end setmetatable(val, tbl) for i = 1, #tbl, 2 do if ((tostring(tbl[i]) == ":") and utils["sym?"](tbl[(i + 1)]) and utils["sym?"](tbl[i])) then tbl[i] = tostring(tbl[(i + 1)]) end val[tbl[i]] = tbl[(i + 1)] table.insert(keys, tbl[i]) end tbl.comments = comments0 tbl.keys = keys return dispatch(val) end local function close_table(b) local top = table.remove(stack) if (top == nil) then parse_error(("unexpected closing delimiter " .. string.char(b))) end if (top.closer and (top.closer ~= b)) then parse_error(("mismatched closing delimiter " .. string.char(b) .. ", expected " .. string.char(top.closer))) end set_source_fields(top) if (b == 41) then return close_list(top) elseif (b == 93) then return close_sequence(top) else return close_curly_table(top) end end local function parse_string_loop(chars, b, state) if b then table.insert(chars, string.char(b)) end local state0 = nil do local _260_0 = {state, b} if ((_G.type(_260_0) == "table") and (_260_0[1] == "base") and (_260_0[2] == 92)) then state0 = "backslash" elseif ((_G.type(_260_0) == "table") and (_260_0[1] == "base") and (_260_0[2] == 34)) then state0 = "done" elseif ((_G.type(_260_0) == "table") and (_260_0[1] == "backslash") and (_260_0[2] == 10)) then table.remove(chars, (#chars - 1)) state0 = "base" else local _ = _260_0 state0 = "base" end end if (b and (state0 ~= "done")) then return parse_string_loop(chars, getb(), state0) else return b end end local function escape_char(c) return ({[10] = "\\n", [11] = "\\v", [12] = "\\f", [13] = "\\r", [7] = "\\a", [8] = "\\b", [9] = "\\t"})[c:byte()] end local function parse_string(source0) if not whitespace_since_dispatch then warn("expected whitespace before string", nil, filename, line) end table.insert(stack, {closer = 34}) local chars = {"\""} if not parse_string_loop(chars, getb(), "base") then badend() end table.remove(stack) local raw = table.concat(chars) local formatted = raw:gsub("[\7-\13]", escape_char) local _265_0 = (rawget(_G, "loadstring") or load)(("return " .. formatted)) if (nil ~= _265_0) then local load_fn = _265_0 return dispatch(load_fn(), source0, raw) elseif (_265_0 == nil) then return parse_error(("Invalid string: " .. raw)) end end local function parse_prefix(b) table.insert(stack, {bytestart = byteindex, col = (col - 1), filename = filename, line = line, prefix = prefixes[b]}) local nextb = getb() local trailing_whitespace_3f = (whitespace_3f(nextb) or (true == delims[nextb])) if (trailing_whitespace_3f and (b ~= 35)) then parse_error("invalid whitespace after quoting prefix") end ungetb(nextb) if (trailing_whitespace_3f and (b == 35)) then local source0 = table.remove(stack) set_source_fields(source0) return dispatch(utils.sym("#", source0)) end end local function parse_sym_loop(chars, b) if (b and sym_char_3f(b)) then table.insert(chars, string.char(b)) return parse_sym_loop(chars, getb()) else if b then ungetb(b) end return chars end end local function parse_number(rawstr, source0) local trimmed = (not rawstr:find("^_") and rawstr:gsub("_", "")) if ((trimmed == "nan") or (trimmed == "-nan")) then return false elseif rawstr:match("^%d") then dispatch((tonumber(trimmed) or parse_error(("could not read number \"" .. rawstr .. "\""))), source0, rawstr) return true else local _271_0 = tonumber(trimmed) if (nil ~= _271_0) then local x = _271_0 dispatch(x, source0, rawstr) return true else local _ = _271_0 return false end end end local function check_malformed_sym(rawstr) local function col_adjust(pat) return (rawstr:find(pat) - utils.len(rawstr) - 1) end if (rawstr:match("^~") and (rawstr ~= "~=")) then parse_error("invalid character: ~") elseif (rawstr:match("[%.:][%.:]") and (rawstr ~= "..") and (rawstr ~= "$...")) then parse_error(("malformed multisym: " .. rawstr), col_adjust("[%.:][%.:]")) elseif ((rawstr ~= ":") and rawstr:match(":$")) then parse_error(("malformed multisym: " .. rawstr), col_adjust(":$")) elseif rawstr:match(":.+[%.:]") then parse_error(("method must be last component of multisym: " .. rawstr), col_adjust(":.+[%.:]")) end if not whitespace_since_dispatch then warn("expected whitespace before token", nil, filename, line) end return rawstr end local function parse_sym(b) local source0 = {bytestart = byteindex, col = (col - 1), filename = filename, line = line} local rawstr = table.concat(parse_sym_loop({string.char(b)}, getb())) set_source_fields(source0) if (rawstr == "true") then return dispatch(true, source0) elseif (rawstr == "false") then return dispatch(false, source0) elseif (rawstr == "...") then return dispatch(utils.varg(source0)) elseif (rawstr == ".inf") then return dispatch((1 / 0), source0, rawstr) elseif (rawstr == "-.inf") then return dispatch((-1 / 0), source0, rawstr) elseif (rawstr == ".nan") then return dispatch(nan, source0, rawstr) elseif (rawstr == "-.nan") then return dispatch(negative_nan, source0, rawstr) elseif rawstr:match("^:.+$") then return dispatch(rawstr:sub(2), source0, rawstr) elseif not parse_number(rawstr, source0) then return dispatch(utils.sym(check_malformed_sym(rawstr), source0)) end end local function parse_loop(b) if not b then elseif (b == 59) then parse_comment(getb(), {";"}) elseif (type(delims[b]) == "number") then open_table(b) elseif delims[b] then close_table(b) elseif (b == 34) then parse_string({bytestart = byteindex, col = col, filename = filename, line = line}) elseif prefixes[b] then parse_prefix(b) elseif (sym_char_3f(b) or (b == string.byte("~"))) then parse_sym(b) elseif not utils["hook-opts"]("illegal-char", options, b, getb, ungetb, dispatch) then parse_error(("invalid character: " .. string.char(b))) end if not b then return nil elseif done_3f then return true, retval else return parse_loop(skip_whitespace(getb(), close_table)) end end return parse_loop(skip_whitespace(getb(), close_table)) end local function _279_() stack, line, byteindex, col, lastb = {}, 1, 0, 0, ((lastb ~= 10) and lastb) return nil end return parse_stream, _279_ end local function parser(stream_or_string, _3ffilename, _3foptions) local filename = (_3ffilename or "unknown") local options = (_3foptions or utils.root.options or {}) assert(("string" == type(filename)), "expected filename as second argument to parser") if ("string" == type(stream_or_string)) then return parser_fn(string_stream(stream_or_string, options), filename, options) else return parser_fn(stream_or_string, filename, options) end end return {["string-stream"] = string_stream, ["sym-char?"] = sym_char_3f, granulate = granulate, parser = parser}endlocal utils = nilpackage.preload["fennel.view"] = package.preload["fennel.view"] or function(...) local type_order = {["function"] = 5, boolean = 2, number = 1, string = 3, table = 4, thread = 7, userdata = 6} local default_opts = {["detect-cycles?"] = true, ["empty-as-sequence?"] = false, ["escape-newlines?"] = false, ["line-length"] = 80, ["max-sparse-gap"] = 1, ["metamethod?"] = true, ["one-line?"] = false, ["prefer-colon?"] = false, ["utf8?"] = true, depth = 128} local lua_pairs = pairs local lua_ipairs = ipairs local function pairs(t) local _1_0 = getmetatable(t) if ((_G.type(_1_0) == "table") and (nil ~= _1_0.__pairs)) then local p = _1_0.__pairs return p(t) else local _ = _1_0 return lua_pairs(t) end end local function ipairs(t) local _3_0 = getmetatable(t) if ((_G.type(_3_0) == "table") and (nil ~= _3_0.__ipairs)) then local i = _3_0.__ipairs return i(t) else local _ = _3_0 return lua_ipairs(t) end end local function length_2a(t) local _5_0 = getmetatable(t) if ((_G.type(_5_0) == "table") and (nil ~= _5_0.__len)) then local l = _5_0.__len return l(t) else local _ = _5_0 return #t end end local function get_default(key) local _7_0 = default_opts[key] if (_7_0 == nil) then return error(("option '%s' doesn't have a default value, use the :after key to set it"):format(tostring(key))) elseif (nil ~= _7_0) then local v = _7_0 return v end end local function getopt(options, key) local _9_0 = options[key] if ((_G.type(_9_0) == "table") and (nil ~= _9_0.once)) then local val_2a = _9_0.once return val_2a else local _3fval = _9_0 return _3fval end end local function normalize_opts(options) local tbl_14_ = {} for k, v in pairs(options) do local k_15_, v_16_ = nil, nil local function _12_() local _11_0 = v if ((_G.type(_11_0) == "table") and (nil ~= _11_0.after)) then local val = _11_0.after return val else local function _13_() return v.once end if ((_G.type(_11_0) == "table") and _13_()) then return get_default(k) else local _ = _11_0 return v end end end k_15_, v_16_ = k, _12_() if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end return tbl_14_ end local function sort_keys(_16_0, _18_0) local _17_ = _16_0 local a = _17_[1] local _19_ = _18_0 local b = _19_[1] local ta = type(a) local tb = type(b) if ((ta == tb) and ((ta == "string") or (ta == "number"))) then return (a < b) else local dta = type_order[ta] local dtb = type_order[tb] if (dta and dtb) then return (dta < dtb) elseif dta then return true elseif dtb then return false else return (ta < tb) end end end local function max_index_gap(kv) local gap = 0 if (0 < length_2a(kv)) then local i = 0 for _, _22_0 in ipairs(kv) do local _23_ = _22_0 local k = _23_[1] if (gap < (k - i)) then gap = (k - i) end i = k end end return gap end local function fill_gaps(kv) local missing_indexes = {} local i = 0 for _, _26_0 in ipairs(kv) do local _27_ = _26_0 local j = _27_[1] i = (i + 1) while (i < j) do table.insert(missing_indexes, i) i = (i + 1) end end for _, k in ipairs(missing_indexes) do table.insert(kv, k, {k}) end return nil end local function table_kv_pairs(t, options) if (("number" ~= type(options["max-sparse-gap"])) or (options["max-sparse-gap"] ~= math.floor(options["max-sparse-gap"]))) then error(("max-sparse-gap must be an integer: got '%s'"):format(tostring(options["max-sparse-gap"]))) end local assoc_3f = false local kv = {} local insert = table.insert for k, v in pairs(t) do if (("number" ~= type(k)) or (k < 1) or (k ~= math.floor(k))) then assoc_3f = true end insert(kv, {k, v}) end table.sort(kv, sort_keys) if not assoc_3f then if (options["max-sparse-gap"] < max_index_gap(kv)) then assoc_3f = true else fill_gaps(kv) end end if (length_2a(kv) == 0) then return kv, "empty" else local function _32_() if assoc_3f then return "table" else return "seq" end end return kv, _32_() end end local function count_table_appearances(t, appearances) if (type(t) == "table") then if not appearances[t] then appearances[t] = 1 for k, v in pairs(t) do count_table_appearances(k, appearances) count_table_appearances(v, appearances) end else appearances[t] = ((appearances[t] or 0) + 1) end end return appearances end local function save_table(t, seen) local seen0 = (seen or {len = 0}) local id = (seen0.len + 1) if not seen0[t] then seen0[t] = id seen0.len = id end return seen0 end local function detect_cycle(t, seen) if ("table" == type(t)) then seen[t] = true local res = nil for k, v in pairs(t) do if res then break end res = (seen[k] or detect_cycle(k, seen) or seen[v] or detect_cycle(v, seen)) end return res end end local function visible_cycle_3f(t, options) return (getopt(options, "detect-cycles?") and detect_cycle(t, {}) and save_table(t, options.seen) and (1 < (options.appearances[t] or 0))) end local function table_indent(indent, id) local opener_length = nil if id then opener_length = (length_2a(tostring(id)) + 2) else opener_length = 1 end return (indent + opener_length) end local pp = nil local function concat_table_lines(elements, options, multiline_3f, indent, table_type, prefix, last_comment_3f) local indent_str = ("\n" .. string.rep(" ", indent)) local open = nil local function _39_() if ("seq" == table_type) then return "[" else return "{" end end open = ((prefix or "") .. _39_()) local close = nil if ("seq" == table_type) then close = "]" else close = "}" end local oneline = (open .. table.concat(elements, " ") .. close) if (not getopt(options, "one-line?") and (multiline_3f or (options["line-length"] < (indent + length_2a(oneline))) or last_comment_3f)) then local function _41_() if last_comment_3f then return indent_str else return "" end end return (open .. table.concat(elements, indent_str) .. _41_() .. close) else return oneline end end local function utf8_len(x) local n = 0 for _ in string.gmatch(x, "[%z\1-\127\192-\247]") do n = (n + 1) end return n end local function comment_3f(x) if ("table" == type(x)) then local fst = x[1] return (("string" == type(fst)) and (nil ~= fst:find("^;"))) else return false end end local function pp_associative(t, kv, options, indent) local multiline_3f = false local id = options.seen[t] if (options.depth <= options.level) then return "{...}" elseif (id and getopt(options, "detect-cycles?")) then return ("@" .. id .. "{...}") else local visible_cycle_3f0 = visible_cycle_3f(t, options) local id0 = (visible_cycle_3f0 and options.seen[t]) local indent0 = table_indent(indent, id0) local slength = nil if getopt(options, "utf8?") then slength = utf8_len else local function _44_(_241) return #_241 end slength = _44_ end local prefix = nil if visible_cycle_3f0 then prefix = ("@" .. id0) else prefix = "" end local items = nil do local options0 = normalize_opts(options) local tbl_17_ = {} local i_18_ = #tbl_17_ for _, _47_0 in ipairs(kv) do local _48_ = _47_0 local k = _48_[1] local v = _48_[2] local val_19_ = nil do local k0 = pp(k, options0, (indent0 + 1), true) local v0 = pp(v, options0, (indent0 + slength(k0) + 1)) multiline_3f = (multiline_3f or k0:find("\n") or v0:find("\n")) val_19_ = (k0 .. " " .. v0) end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end items = tbl_17_ end return concat_table_lines(items, options, multiline_3f, indent0, "table", prefix, false) end end local function pp_sequence(t, kv, options, indent) local multiline_3f = false local id = options.seen[t] if (options.depth <= options.level) then return "[...]" elseif (id and getopt(options, "detect-cycles?")) then return ("@" .. id .. "[...]") else local visible_cycle_3f0 = visible_cycle_3f(t, options) local id0 = (visible_cycle_3f0 and options.seen[t]) local indent0 = table_indent(indent, id0) local prefix = nil if visible_cycle_3f0 then prefix = ("@" .. id0) else prefix = "" end local last_comment_3f = comment_3f(t[#t]) local items = nil do local options0 = normalize_opts(options) local tbl_17_ = {} local i_18_ = #tbl_17_ for _, _52_0 in ipairs(kv) do local _53_ = _52_0 local _0 = _53_[1] local v = _53_[2] local val_19_ = nil do local v0 = pp(v, options0, indent0) multiline_3f = (multiline_3f or v0:find("\n") or v0:find("^;")) val_19_ = v0 end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end items = tbl_17_ end return concat_table_lines(items, options, multiline_3f, indent0, "seq", prefix, last_comment_3f) end end local function concat_lines(lines, options, indent, force_multi_line_3f) if (length_2a(lines) == 0) then if getopt(options, "empty-as-sequence?") then return "[]" else return "{}" end else local oneline = nil local _57_ do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, line in ipairs(lines) do local val_19_ = line:gsub("^%s+", "") if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _57_ = tbl_17_ end oneline = table.concat(_57_, " ") if (not getopt(options, "one-line?") and (force_multi_line_3f or oneline:find("\n") or (options["line-length"] < (indent + length_2a(oneline))))) then return table.concat(lines, ("\n" .. string.rep(" ", indent))) else return oneline end end end local function pp_metamethod(t, metamethod, options, indent) if (options.depth <= options.level) then if getopt(options, "empty-as-sequence?") then return "[...]" else return "{...}" end else local _ = nil local function _62_(_241) return visible_cycle_3f(_241, options) end options["visible-cycle?"] = _62_ _ = nil local lines, force_multi_line_3f = nil, nil do local options0 = normalize_opts(options) lines, force_multi_line_3f = metamethod(t, pp, options0, indent) end options["visible-cycle?"] = nil local _63_0 = type(lines) if (_63_0 == "string") then return lines elseif (_63_0 == "table") then return concat_lines(lines, options, indent, force_multi_line_3f) else local _0 = _63_0 return error("__fennelview metamethod must return a table of lines") end end end local function pp_table(x, options, indent) options.level = (options.level + 1) local x0 = nil do local _66_0 = nil if getopt(options, "metamethod?") then local _67_0 = x if (nil ~= _67_0) then local _68_0 = getmetatable(_67_0) if (nil ~= _68_0) then _66_0 = _68_0.__fennelview else _66_0 = _68_0 end else _66_0 = _67_0 end else _66_0 = nil end if (nil ~= _66_0) then local metamethod = _66_0 x0 = pp_metamethod(x, metamethod, options, indent) else local _ = _66_0 local _72_0, _73_0 = table_kv_pairs(x, options) if (true and (_73_0 == "empty")) then local _0 = _72_0 if getopt(options, "empty-as-sequence?") then x0 = "[]" else x0 = "{}" end elseif ((nil ~= _72_0) and (_73_0 == "table")) then local kv = _72_0 x0 = pp_associative(x, kv, options, indent) elseif ((nil ~= _72_0) and (_73_0 == "seq")) then local kv = _72_0 x0 = pp_sequence(x, kv, options, indent) else x0 = nil end end end options.level = (options.level - 1) return x0 end local function exponential_notation(n, fallback) local s = nil for i = 0, 99 do if s then break end local s0 = string.format(("%." .. i .. "e"), n) if (n == tonumber(s0)) then local exp = s0:match("e%+?(%d+)$") if (exp and (14 < tonumber(exp))) then s = s0 else s = fallback end else s = nil end end return s end local inf_str = tostring((1 / 0)) local neg_inf_str = tostring((-1 / 0)) local function number__3estring(n, options) local val = nil if (n ~= n) then if (45 == string.byte(tostring(n))) then val = (options["negative-nan"] or "-.nan") else val = (options.nan or ".nan") end elseif (math.floor(n) == n) then local s1 = string.format("%.0f", n) if (s1 == inf_str) then val = (options.infinity or ".inf") elseif (s1 == neg_inf_str) then val = (options["negative-infinity"] or "-.inf") elseif (s1 == tostring(n)) then val = s1 else val = (exponential_notation(n, s1) or s1) end else val = tostring(n) end local _82_0 = string.gsub(val, ",", ".") return _82_0 end local function colon_string_3f(s) return s:find("^[-%w?^_!$%&*+./|<=>]+$") end local utf8_inits = {{["max-byte"] = 127, ["max-code"] = 127, ["min-byte"] = 0, ["min-code"] = 0, len = 1}, {["max-byte"] = 223, ["max-code"] = 2047, ["min-byte"] = 192, ["min-code"] = 128, len = 2}, {["max-byte"] = 239, ["max-code"] = 65535, ["min-byte"] = 224, ["min-code"] = 2048, len = 3}, {["max-byte"] = 247, ["max-code"] = 1114111, ["min-byte"] = 240, ["min-code"] = 65536, len = 4}} local function default_byte_escape(byte, _options) return ("\\%03d"):format(byte) end local function utf8_escape(str, options) local function validate_utf8(str0, index) local inits = utf8_inits local byte = string.byte(str0, index) local init = nil do local ret = nil for _, init0 in ipairs(inits) do if ret then break end ret = (byte and (function(_83_,_84_,_85_) return (_83_ <= _84_) and (_84_ <= _85_) end)(init0["min-byte"],byte,init0["max-byte"]) and init0) end init = ret end local code = nil local function _86_() local code0 = nil if init then code0 = (byte - init["min-byte"]) else code0 = nil end for i = (index + 1), (index + init.len + -1) do local byte0 = string.byte(str0, i) code0 = (byte0 and code0 and ((128 <= byte0) and (byte0 <= 191)) and ((code0 * 64) + (byte0 - 128))) end return code0 end code = (init and _86_()) if (code and (function(_88_,_89_,_90_) return (_88_ <= _89_) and (_89_ <= _90_) end)(init["min-code"],code,init["max-code"]) and not ((55296 <= code) and (code <= 57343))) then return init.len end end local index = 1 local output = {} local byte_escape = (getopt(options, "byte-escape") or default_byte_escape) while (index <= #str) do local nexti = (string.find(str, "[\128-\255]", index) or (#str + 1)) local len = validate_utf8(str, nexti) table.insert(output, string.sub(str, index, (nexti + (len or 0) + -1))) if (not len and (nexti <= #str)) then table.insert(output, byte_escape(str:byte(nexti), options)) end if len then index = (nexti + len) else index = (nexti + 1) end end return table.concat(output) end local function pp_string(str, options, indent) local len = length_2a(str) local esc_newline_3f = ((len < 2) or (getopt(options, "escape-newlines?") and (len < (options["line-length"] - indent)))) local byte_escape = (getopt(options, "byte-escape") or default_byte_escape) local escs = nil local _94_ if esc_newline_3f then _94_ = "\\n" else _94_ = "\n" end local function _96_(_241, _242) return byte_escape(_242:byte(), options) end escs = setmetatable({["\""] = "\\\"", ["\11"] = "\\v", ["\12"] = "\\f", ["\13"] = "\\r", ["\7"] = "\\a", ["\8"] = "\\b", ["\9"] = "\\t", ["\\"] = "\\\\", ["\n"] = _94_}, {__index = _96_}) local str0 = ("\"" .. str:gsub("[%c\\\"]", escs) .. "\"") if getopt(options, "utf8?") then return utf8_escape(str0, options) else return str0 end end local function make_options(t, options) local defaults = nil do local tbl_14_ = {} for k, v in pairs(default_opts) do local k_15_, v_16_ = k, v if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end defaults = tbl_14_ end local overrides = {appearances = count_table_appearances(t, {}), level = 0, seen = {len = 0}} for k, v in pairs((options or {})) do defaults[k] = v end for k, v in pairs(overrides) do defaults[k] = v end return defaults end local function _99_(x, options, indent, colon_3f) local indent0 = (indent or 0) local options0 = (options or make_options(x)) local x0 = nil if options0.preprocess then x0 = options0.preprocess(x, options0) else x0 = x end local tv = type(x0) local function _102_() local _101_0 = getmetatable(x0) if ((_G.type(_101_0) == "table") and true) then local __fennelview = _101_0.__fennelview return __fennelview end end if ((tv == "table") or ((tv == "userdata") and _102_())) then return pp_table(x0, options0, indent0) elseif (tv == "number") then return number__3estring(x0, options0) else local function _104_() if (colon_3f ~= nil) then return colon_3f elseif ("function" == type(options0["prefer-colon?"])) then return options0["prefer-colon?"](x0) else return getopt(options0, "prefer-colon?") end end if ((tv == "string") and colon_string_3f(x0) and _104_()) then return (":" .. x0) elseif (tv == "string") then return pp_string(x0, options0, indent0) elseif ((tv == "boolean") or (tv == "nil")) then return tostring(x0) else return ("#<" .. tostring(x0) .. ">") end end end pp = _99_ local function _view(x, _3foptions) return pp(x, make_options(x, _3foptions), 0) end return _viewendpackage.preload["fennel.utils"] = package.preload["fennel.utils"] or function(...) local view = require("fennel.view") local version = "1.5.3" local unpack = (table.unpack or _G.unpack) local pack = nil local function _106_(...) local _107_0 = {...} _107_0["n"] = select("#", ...) return _107_0 end pack = (table.pack or _106_) local maxn = nil local function _108_(_241) local max = 0 for k in pairs(_241) do if (("number" == type(k)) and (max < k)) then max = k else max = max end end return max end maxn = (table.maxn or _108_) local function luajit_vm_3f() return ((nil ~= _G.jit) and (type(_G.jit) == "table") and (nil ~= _G.jit.on) and (nil ~= _G.jit.off) and (type(_G.jit.version_num) == "number")) end local function luajit_vm_version() local jit_os = nil if (_G.jit.os == "OSX") then jit_os = "macOS" else jit_os = _G.jit.os end return (_G.jit.version .. " " .. jit_os .. "/" .. _G.jit.arch) end local function fengari_vm_3f() return ((nil ~= _G.fengari) and (type(_G.fengari) == "table") and (nil ~= _G.fengari.VERSION) and (type(_G.fengari.VERSION_NUM) == "number")) end local function fengari_vm_version() return (_G.fengari.RELEASE .. " (" .. _VERSION .. ")") end local function lua_vm_version() if luajit_vm_3f() then return luajit_vm_version() elseif fengari_vm_3f() then return fengari_vm_version() else return ("PUC " .. _VERSION) end end local function runtime_version(_3fas_table) if _3fas_table then return {fennel = version, lua = lua_vm_version()} else return ("Fennel " .. version .. " on " .. lua_vm_version()) end end local len = nil do local _113_0, _114_0 = pcall(require, "utf8") if ((_113_0 == true) and (nil ~= _114_0)) then local utf8 = _114_0 len = utf8.len else local _ = _113_0 len = string.len end end local kv_order = {boolean = 2, number = 1, string = 3, table = 4} local function kv_compare(a, b) local _116_0, _117_0 = type(a), type(b) if (((_116_0 == "number") and (_117_0 == "number")) or ((_116_0 == "string") and (_117_0 == "string"))) then return (a < b) else local function _118_() local a_t = _116_0 local b_t = _117_0 return (a_t ~= b_t) end if (((nil ~= _116_0) and (nil ~= _117_0)) and _118_()) then local a_t = _116_0 local b_t = _117_0 return ((kv_order[a_t] or 5) < (kv_order[b_t] or 5)) else local _ = _116_0 return (tostring(a) < tostring(b)) end end end local function add_stable_keys(succ, prev_key, src, _3fpred) local first = prev_key local last = nil do local prev = prev_key for _, k in ipairs(src) do if ((prev == k) or (succ[k] ~= nil) or (_3fpred and not _3fpred(k))) then prev = prev else if (first == nil) then first = k prev = k elseif (prev ~= nil) then succ[prev] = k prev = k else prev = k end end end last = prev end return succ, last, first end local function stablepairs(t) local mt_keys = nil do local _122_0 = getmetatable(t) if (nil ~= _122_0) then _122_0 = _122_0.keys end mt_keys = _122_0 end local succ, prev, first_mt = nil, nil, nil local function _124_(_241) return t[_241] end succ, prev, first_mt = add_stable_keys({}, nil, (mt_keys or {}), _124_) local pairs_keys = nil do local _125_0 = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for k in pairs(t) do local val_19_ = k if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end _125_0 = tbl_17_ end table.sort(_125_0, kv_compare) pairs_keys = _125_0 end local succ0, _, first_after_mt = add_stable_keys(succ, prev, pairs_keys) local first = nil if (first_mt == nil) then first = first_after_mt else first = first_mt end local function stablenext(tbl, key) local _128_0 = nil if (key == nil) then _128_0 = first else _128_0 = succ0[key] end if (nil ~= _128_0) then local next_key = _128_0 local _130_0 = tbl[next_key] if (_130_0 ~= nil) then return next_key, _130_0 else return _130_0 end end end return stablenext, t, nil end local function get_in(tbl, path) if (nil ~= path[1]) then local t = tbl for _, k in ipairs(path) do if (nil == t) then break end if (type(t) == "table") then t = t[k] else t = nil end end return t end end local function copy(_3ffrom, _3fto) local tbl_14_ = (_3fto or {}) for k, v in pairs((_3ffrom or {})) do local k_15_, v_16_ = k, v if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end return tbl_14_ end local function member_3f(x, tbl, _3fn) local _136_0 = tbl[(_3fn or 1)] if (_136_0 == x) then return true elseif (_136_0 == nil) then return nil else local _ = _136_0 return member_3f(x, tbl, ((_3fn or 1) + 1)) end end local function every_3f(t, predicate) local result = true for _, item in ipairs(t) do if not result then break end result = predicate(item) end return result end local function allpairs(tbl) assert((type(tbl) == "table"), "allpairs expects a table") local t = tbl local seen = {} local function allpairs_next(_, state) local next_state, value = next(t, state) if seen[next_state] then return allpairs_next(nil, next_state) elseif next_state then seen[next_state] = true return next_state, value else local _138_0 = getmetatable(t) if ((_G.type(_138_0) == "table") and true) then local __index = _138_0.__index if ("table" == type(__index)) then t = __index return allpairs_next(t) end end end end return allpairs_next end local function deref(self) return self[1] end local function list__3estring(self, _3fview, _3foptions, _3findent) local viewed = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 1, maxn(self) do local val_19_ = nil if _3fview then val_19_ = _3fview(self[i], _3foptions, _3findent) else val_19_ = view(self[i]) end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end viewed = tbl_17_ end return ("(" .. table.concat(viewed, " ") .. ")") end local function sym_3d(a, b) return ((deref(a) == deref(b)) and (getmetatable(a) == getmetatable(b))) end local function sym_3c(a, b) return (a[1] < tostring(b)) end local symbol_mt = {"SYMBOL", __eq = sym_3d, __fennelview = deref, __lt = sym_3c, __tostring = deref} local expr_mt = nil local function _144_(x) return tostring(deref(x)) end expr_mt = {"EXPR", __tostring = _144_} local list_mt = {"LIST", __fennelview = list__3estring, __tostring = list__3estring} local comment_mt = nil local function _145_(_241) return _241 end comment_mt = {"COMMENT", __eq = sym_3d, __fennelview = _145_, __lt = sym_3c, __tostring = deref} local sequence_marker = {"SEQUENCE"} local varg_mt = {"VARARG", __fennelview = deref, __tostring = deref} local getenv = nil local function _146_() return nil end getenv = ((os and os.getenv) or _146_) local function debug_on_3f(flag) local level = (getenv("FENNEL_DEBUG") or "") return ((level == "all") or level:find(flag)) end local function list(...) return setmetatable({...}, list_mt) end local function sym(str, _3fsource) local _147_ do local tbl_14_ = {str} for k, v in pairs((_3fsource or {})) do local k_15_, v_16_ = nil, nil if (type(k) == "string") then k_15_, v_16_ = k, v else k_15_, v_16_ = nil end if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end _147_ = tbl_14_ end return setmetatable(_147_, symbol_mt) end local function sequence(...) local function _150_(seq, view0, inspector, indent) local opts = nil do inspector["empty-as-sequence?"] = {after = inspector["empty-as-sequence?"], once = true} inspector["metamethod?"] = {after = inspector["metamethod?"], once = false} opts = inspector end return view0(seq, opts, indent) end return setmetatable({...}, {__fennelview = _150_, sequence = sequence_marker}) end local function expr(strcode, etype) return setmetatable({strcode, type = etype}, expr_mt) end local function comment_2a(contents, _3fsource) local _151_ = (_3fsource or {}) local filename = _151_["filename"] local line = _151_["line"] return setmetatable({contents, filename = filename, line = line}, comment_mt) end local function varg(_3fsource) local _152_ do local tbl_14_ = {"..."} for k, v in pairs((_3fsource or {})) do local k_15_, v_16_ = nil, nil if (type(k) == "string") then k_15_, v_16_ = k, v else k_15_, v_16_ = nil end if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end _152_ = tbl_14_ end return setmetatable(_152_, varg_mt) end local function expr_3f(x) return ((type(x) == "table") and (getmetatable(x) == expr_mt) and x) end local function varg_3f(x) return ((type(x) == "table") and (getmetatable(x) == varg_mt) and x) end local function list_3f(x) return ((type(x) == "table") and (getmetatable(x) == list_mt) and x) end local function sym_3f(x, _3fname) return ((type(x) == "table") and (getmetatable(x) == symbol_mt) and ((nil == _3fname) or (x[1] == _3fname)) and x) end local function sequence_3f(x) local mt = ((type(x) == "table") and getmetatable(x)) return (mt and (mt.sequence == sequence_marker) and x) end local function comment_3f(x) return ((type(x) == "table") and (getmetatable(x) == comment_mt) and x) end local function table_3f(x) return ((type(x) == "table") and not varg_3f(x) and (getmetatable(x) ~= list_mt) and (getmetatable(x) ~= symbol_mt) and not comment_3f(x) and x) end local function kv_table_3f(t) if table_3f(t) then local nxt, t0, k = pairs(t) local len0 = #t0 local next_state = nil if (0 == len0) then next_state = k else next_state = len0 end return ((nil ~= nxt(t0, next_state)) and t0) end end local function string_3f(x) if (type(x) == "string") then return x else return false end end local function multi_sym_3f(str) if sym_3f(str) then return multi_sym_3f(tostring(str)) elseif (type(str) ~= "string") then return false else local function _158_() local parts = {} for part in str:gmatch("[^%.%:]+[%.%:]?") do local last_char = part:sub(-1) if (last_char == ":") then parts["multi-sym-method-call"] = true end if ((last_char == ":") or (last_char == ".")) then parts[(#parts + 1)] = part:sub(1, -2) else parts[(#parts + 1)] = part end end return (next(parts) and parts) end return ((str:match("%.") or str:match(":")) and not str:match("%.%.") and (str:byte() ~= string.byte(".")) and (str:byte() ~= string.byte(":")) and (str:byte(-1) ~= string.byte(".")) and (str:byte(-1) ~= string.byte(":")) and _158_()) end end local function call_of_3f(ast, callee) return (list_3f(ast) and sym_3f(ast[1], callee)) end local function quoted_3f(symbol) return symbol.quoted end local function idempotent_expr_3f(x) local t = type(x) return ((t == "string") or (t == "number") or (t == "boolean") or (sym_3f(x) and not multi_sym_3f(x))) end local function walk_tree(root, f, _3fcustom_iterator) local function walk(iterfn, parent, idx, node) if (f(idx, node, parent) and not sym_3f(node)) then for k, v in iterfn(node) do walk(iterfn, node, k, v) end return nil end end walk((_3fcustom_iterator or pairs), nil, nil, root) return root end local root = nil local function _163_() end root = {chunk = nil, options = nil, reset = _163_, scope = nil} root["set-reset"] = function(_164_0) local _165_ = _164_0 local chunk = _165_["chunk"] local options = _165_["options"] local reset = _165_["reset"] local scope = _165_["scope"] root.reset = function() root.chunk, root.scope, root.options, root.reset = chunk, scope, options, reset return nil end return root.reset end local lua_keywords = {["and"] = true, ["break"] = true, ["do"] = true, ["else"] = true, ["elseif"] = true, ["end"] = true, ["false"] = true, ["for"] = true, ["function"] = true, ["goto"] = true, ["if"] = true, ["in"] = true, ["local"] = true, ["nil"] = true, ["not"] = true, ["or"] = true, ["repeat"] = true, ["return"] = true, ["then"] = true, ["true"] = true, ["until"] = true, ["while"] = true} local function lua_keyword_3f(str) local function _167_() local _166_0 = root.options if (nil ~= _166_0) then _166_0 = _166_0.keywords end if (nil ~= _166_0) then _166_0 = _166_0[str] end return _166_0 end return (lua_keywords[str] or _167_()) end local function valid_lua_identifier_3f(str) return (str:match("^[%a_][%w_]*$") and not lua_keyword_3f(str)) end local propagated_options = {"allowedGlobals", "indent", "correlate", "useMetadata", "env", "compiler-env", "compilerEnv"} local function propagate_options(options, subopts) local tbl_14_ = subopts for _, name in ipairs(propagated_options) do local k_15_, v_16_ = name, options[name] if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end return tbl_14_ end local function ast_source(ast) if (table_3f(ast) or sequence_3f(ast)) then return (getmetatable(ast) or {}) elseif ("table" == type(ast)) then return ast else return {} end end local function warn(msg, _3fast, _3ffilename, _3fline) local _172_0 = nil do local _173_0 = root.options if (nil ~= _173_0) then _173_0 = _173_0.warn end _172_0 = _173_0 end if (nil ~= _172_0) then local opt_warn = _172_0 return opt_warn(msg, _3fast, _3ffilename, _3fline) else local _ = _172_0 if (_G.io and _G.io.stderr) then local loc = nil do local _175_0 = ast_source(_3fast) if ((_G.type(_175_0) == "table") and (nil ~= _175_0.filename) and (nil ~= _175_0.line)) then local filename = _175_0.filename local line = _175_0.line loc = (filename .. ":" .. line .. ": ") else local _0 = _175_0 if (_3ffilename and _3fline) then loc = (_3ffilename .. ":" .. _3fline .. ": ") else loc = "" end end end return (_G.io.stderr):write(("--WARNING: %s%s\n"):format(loc, msg)) end end end local warned = {} local function check_plugin_version(_180_0) local _181_ = _180_0 local plugin = _181_ local name = _181_["name"] local versions = _181_["versions"] if (not member_3f(version:gsub("-dev", ""), (versions or {})) and not (string_3f(versions) and version:find(versions)) and not warned[plugin]) then warned[plugin] = true return warn(string.format("plugin %s does not support Fennel version %s", (name or "unknown"), version)) end end local function hook_opts(event, _3foptions, ...) local plugins = nil local function _184_(...) local _183_0 = _3foptions if (nil ~= _183_0) then _183_0 = _183_0.plugins end return _183_0 end local function _187_(...) local _186_0 = root.options if (nil ~= _186_0) then _186_0 = _186_0.plugins end return _186_0 end plugins = (_184_(...) or _187_(...)) if plugins then local result = nil for _, plugin in ipairs(plugins) do if (nil ~= result) then break end check_plugin_version(plugin) local _189_0 = plugin[event] if (nil ~= _189_0) then local f = _189_0 result = f(...) else result = nil end end return result end end local function hook(event, ...) return hook_opts(event, root.options, ...) end return {["ast-source"] = ast_source, ["call-of?"] = call_of_3f, ["comment?"] = comment_3f, ["debug-on?"] = debug_on_3f, ["every?"] = every_3f, ["expr?"] = expr_3f, ["fennel-module"] = nil, ["get-in"] = get_in, ["hook-opts"] = hook_opts, ["idempotent-expr?"] = idempotent_expr_3f, ["kv-table?"] = kv_table_3f, ["list?"] = list_3f, ["lua-keyword?"] = lua_keyword_3f, ["macro-path"] = table.concat({"./?.fnl", "./?/init-macros.fnl", "./?/init.fnl", getenv("FENNEL_MACRO_PATH")}, ";"), ["member?"] = member_3f, ["multi-sym?"] = multi_sym_3f, ["propagate-options"] = propagate_options, ["quoted?"] = quoted_3f, ["runtime-version"] = runtime_version, ["sequence?"] = sequence_3f, ["string?"] = string_3f, ["sym?"] = sym_3f, ["table?"] = table_3f, ["valid-lua-identifier?"] = valid_lua_identifier_3f, ["varg?"] = varg_3f, ["walk-tree"] = walk_tree, allpairs = allpairs, comment = comment_2a, copy = copy, expr = expr, hook = hook, len = len, list = list, maxn = maxn, pack = pack, path = table.concat({"./?.fnl", "./?/init.fnl", getenv("FENNEL_PATH")}, ";"), root = root, sequence = sequence, stablepairs = stablepairs, sym = sym, unpack = unpack, varg = varg, version = version, warn = warn}endutils = require("fennel.utils")local parser = require("fennel.parser")local compiler = require("fennel.compiler")local specials = require("fennel.specials")local repl = require("fennel.repl")local view = require("fennel.view")local function eval_env(env, opts) if (env == "_COMPILER") then local env0 = specials["make-compiler-env"](nil, compiler.scopes.compiler, {}, opts) if (opts.allowedGlobals == nil) then opts.allowedGlobals = specials["current-global-names"](env0) end return specials["wrap-env"](env0) else return (env and specials["wrap-env"](env)) endendlocal function eval_opts(options, str) local opts = utils.copy(options) if (opts.allowedGlobals == nil) then opts.allowedGlobals = specials["current-global-names"](opts.env) end if (not opts.filename and not opts.source) then opts.source = str end if (opts.env == "_COMPILER") then opts.scope = compiler["make-scope"](compiler.scopes.compiler) end return optsendlocal function eval(str, _3foptions, ...) local opts = eval_opts(_3foptions, str) local env = eval_env(opts.env, opts) local lua_source = compiler["compile-string"](str, opts) local loader = nil local function _858_(...) if opts.filename then return ("@" .. opts.filename) else return str end end loader = specials["load-code"](lua_source, env, _858_(...)) opts.filename = nil return loader(...)endlocal function dofile_2a(filename, _3foptions, ...) local opts = utils.copy(_3foptions) local f = assert(io.open(filename, "rb")) local source = assert(f:read("*all"), ("Could not read " .. filename)) f:close() opts.filename = filename return eval(source, opts, ...)endlocal function syntax() local body_3f = {"when", "with-open", "collect", "icollect", "fcollect", "lambda", "\206\187", "macro", "match", "match-try", "case", "case-try", "accumulate", "faccumulate", "doto"} local binding_3f = {"collect", "icollect", "fcollect", "each", "for", "let", "with-open", "accumulate", "faccumulate"} local define_3f = {"fn", "lambda", "\206\187", "var", "local", "macro", "macros", "global"} local deprecated = {"~=", "#", "global", "require-macros", "pick-args"} local out = {} for k, v in pairs(compiler.scopes.global.specials) do local metadata = (compiler.metadata[v] or {}) out[k] = {["binding-form?"] = utils["member?"](k, binding_3f), ["body-form?"] = metadata["fnl/body-form?"], ["define?"] = utils["member?"](k, define_3f), ["deprecated?"] = utils["member?"](k, deprecated), ["special?"] = true} end for k in pairs(compiler.scopes.global.macros) do out[k] = {["binding-form?"] = utils["member?"](k, binding_3f), ["body-form?"] = utils["member?"](k, body_3f), ["define?"] = utils["member?"](k, define_3f), ["macro?"] = true} end for k, v in pairs(_G) do local _859_0 = type(v) if (_859_0 == "function") then out[k] = {["function?"] = true, ["global?"] = true} elseif (_859_0 == "table") then if not k:find("^_") then for k2, v2 in pairs(v) do if ("function" == type(v2)) then out[(k .. "." .. k2)] = {["function?"] = true, ["global?"] = true} end end out[k] = {["global?"] = true} end end end return outendlocal mod = {["ast-source"] = utils["ast-source"], ["comment?"] = utils["comment?"], ["compile-stream"] = compiler["compile-stream"], ["compile-string"] = compiler["compile-string"], ["list?"] = utils["list?"], ["load-code"] = specials["load-code"], ["macro-loaded"] = specials["macro-loaded"], ["macro-path"] = utils["macro-path"], ["macro-searchers"] = specials["macro-searchers"], ["make-searcher"] = specials["make-searcher"], ["multi-sym?"] = utils["multi-sym?"], ["runtime-version"] = utils["runtime-version"], ["search-module"] = specials["search-module"], ["sequence?"] = utils["sequence?"], ["string-stream"] = parser["string-stream"], ["sym-char?"] = parser["sym-char?"], ["sym?"] = utils["sym?"], ["table?"] = utils["table?"], ["varg?"] = utils["varg?"], comment = utils.comment, compile = compiler.compile, compile1 = compiler.compile1, compileStream = compiler["compile-stream"], compileString = compiler["compile-string"], doc = specials.doc, dofile = dofile_2a, eval = eval, gensym = compiler.gensym, getinfo = compiler.getinfo, granulate = parser.granulate, list = utils.list, loadCode = specials["load-code"], macroLoaded = specials["macro-loaded"], macroPath = utils["macro-path"], macroSearchers = specials["macro-searchers"], makeSearcher = specials["make-searcher"], make_searcher = specials["make-searcher"], mangle = compiler["global-mangling"], metadata = compiler.metadata, parser = parser.parser, path = utils.path, repl = repl, runtimeVersion = utils["runtime-version"], scope = compiler["make-scope"], searchModule = specials["search-module"], searcher = specials["make-searcher"](), sequence = utils.sequence, stringStream = parser["string-stream"], sym = utils.sym, syntax = syntax, traceback = compiler.traceback, unmangle = compiler["global-unmangling"], varg = utils.varg, version = utils.version, view = view}mod.install = function(_3fopts) table.insert((package.searchers or package.loaders), specials["make-searcher"](_3fopts)) return modendutils["fennel-module"] = modlocal function load_macros(src, env) local chunk = assert(specials["load-code"](src, env, "src/fennel/macros.fnl")) for k, v in pairs(chunk()) do compiler.scopes.global.macros[k] = v end return nilenddo local env = specials["make-compiler-env"](nil, compiler.scopes.compiler, {}) env.utils = utils env["get-function-metadata"] = specials["get-function-metadata"] load_macros([===[local function copy(t) local out = {} for _, v in ipairs(t) do table.insert(out, v) end return setmetatable(out, getmetatable(t)) end utils['fennel-module'].metadata:setall(copy, "fnl/arglist", {"t"}) local function __3e_2a(val, ...) local x = val for _, e in ipairs({...}) do local elt = nil if _G["list?"](e) then elt = copy(e) else elt = list(e) end table.insert(elt, 2, x) x = elt end return x end utils['fennel-module'].metadata:setall(__3e_2a, "fnl/arglist", {"val", "..."}, "fnl/docstring", "Thread-first macro.\nTake the first value and splice it into the second form as its first argument.\nThe value of the second form is spliced into the first arg of the third, etc.") local function __3e_3e_2a(val, ...) local x = val for _, e in ipairs({...}) do local elt = nil if _G["list?"](e) then elt = copy(e) else elt = list(e) end table.insert(elt, x) x = elt end return x end utils['fennel-module'].metadata:setall(__3e_3e_2a, "fnl/arglist", {"val", "..."}, "fnl/docstring", "Thread-last macro.\nSame as ->, except splices the value into the last position of each form\nrather than the first.") local function __3f_3e_2a(val, _3fe, ...) if (nil == _3fe) then return val elseif not utils["idempotent-expr?"](val) then return setmetatable({filename="src/fennel/macros.fnl", line=40, bytestart=1174, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=40}), setmetatable({sym('tmp_3_', nil, {filename="src/fennel/macros.fnl", line=40}), val}, {filename="src/fennel/macros.fnl", line=40}), setmetatable({filename="src/fennel/macros.fnl", line=41, bytestart=1199, sym('-?>', nil, {quoted=true, filename="src/fennel/macros.fnl", line=41}), sym('tmp_3_', nil, {filename="src/fennel/macros.fnl", line=41}), _3fe, ...}, getmetatable(list()))}, getmetatable(list())) else local call = nil if _G["list?"](_3fe) then call = copy(_3fe) else call = list(_3fe) end table.insert(call, 2, val) return setmetatable({filename="src/fennel/macros.fnl", line=44, bytestart=1317, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=44}), setmetatable({filename="src/fennel/macros.fnl", line=44, bytestart=1321, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=44}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=44}), val}, getmetatable(list())), __3f_3e_2a(call, ...)}, getmetatable(list())) end end utils['fennel-module'].metadata:setall(__3f_3e_2a, "fnl/arglist", {"val", "?e", "..."}, "fnl/docstring", "Nil-safe thread-first macro.\nSame as -> except will short-circuit with nil when it encounters a nil value.") local function __3f_3e_3e_2a(val, _3fe, ...) if (nil == _3fe) then return val elseif not utils["idempotent-expr?"](val) then return setmetatable({filename="src/fennel/macros.fnl", line=54, bytestart=1627, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=54}), setmetatable({sym('tmp_6_', nil, {filename="src/fennel/macros.fnl", line=54}), val}, {filename="src/fennel/macros.fnl", line=54}), setmetatable({filename="src/fennel/macros.fnl", line=55, bytestart=1652, sym('-?>>', nil, {quoted=true, filename="src/fennel/macros.fnl", line=55}), sym('tmp_6_', nil, {filename="src/fennel/macros.fnl", line=55}), _3fe, ...}, getmetatable(list()))}, getmetatable(list())) else local call = nil if _G["list?"](_3fe) then call = copy(_3fe) else call = list(_3fe) end table.insert(call, val) return setmetatable({filename="src/fennel/macros.fnl", line=58, bytestart=1769, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=58}), setmetatable({filename="src/fennel/macros.fnl", line=58, bytestart=1773, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=58}), val, sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=58})}, getmetatable(list())), __3f_3e_3e_2a(call, ...)}, getmetatable(list())) end end utils['fennel-module'].metadata:setall(__3f_3e_3e_2a, "fnl/arglist", {"val", "?e", "..."}, "fnl/docstring", "Nil-safe thread-last macro.\nSame as ->> except will short-circuit with nil when it encounters a nil value.") local function _3fdot(tbl, ...) local head = gensym("t") local lookups = setmetatable({filename="src/fennel/macros.fnl", line=66, bytestart=2024, sym('do', nil, {quoted=true, filename="src/fennel/macros.fnl", line=66}), setmetatable({filename="src/fennel/macros.fnl", line=67, bytestart=2047, sym('var', nil, {quoted=true, filename="src/fennel/macros.fnl", line=67}), head, tbl}, getmetatable(list())), head}, getmetatable(list())) for i, k in ipairs({...}) do table.insert(lookups, (i + 2), setmetatable({filename="src/fennel/macros.fnl", line=73, bytestart=2335, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=73}), setmetatable({filename="src/fennel/macros.fnl", line=73, bytestart=2339, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=73}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=73}), head}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=73, bytestart=2356, sym('set', nil, {quoted=true, filename="src/fennel/macros.fnl", line=73}), head, setmetatable({filename="src/fennel/macros.fnl", line=73, bytestart=2367, sym('.', nil, {quoted=true, filename="src/fennel/macros.fnl", line=73}), head, k}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list()))) end return lookups end utils['fennel-module'].metadata:setall(_3fdot, "fnl/arglist", {"tbl", "..."}, "fnl/docstring", "Nil-safe table look up.\nSame as . (dot), except will short-circuit with nil when it encounters\na nil value in any of subsequent keys.") local function doto_2a(val, ...) assert((val ~= nil), "missing subject") if not utils["idempotent-expr?"](val) then return setmetatable({filename="src/fennel/macros.fnl", line=80, bytestart=2585, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=80}), setmetatable({sym('tmp_9_', nil, {filename="src/fennel/macros.fnl", line=80}), val}, {filename="src/fennel/macros.fnl", line=80}), setmetatable({filename="src/fennel/macros.fnl", line=81, bytestart=2609, sym('doto', nil, {quoted=true, filename="src/fennel/macros.fnl", line=81}), sym('tmp_9_', nil, {filename="src/fennel/macros.fnl", line=81}), ...}, getmetatable(list()))}, getmetatable(list())) else local form = setmetatable({filename="src/fennel/macros.fnl", line=82, bytestart=2643, sym('do', nil, {quoted=true, filename="src/fennel/macros.fnl", line=82})}, getmetatable(list())) for _, elt in ipairs({...}) do local elt0 = nil if _G["list?"](elt) then elt0 = copy(elt) else elt0 = list(elt) end table.insert(elt0, 2, val) table.insert(form, elt0) end table.insert(form, val) return form end end utils['fennel-module'].metadata:setall(doto_2a, "fnl/arglist", {"val", "..."}, "fnl/docstring", "Evaluate val and splice it into the first argument of subsequent forms.") local function when_2a(condition, body1, ...) assert(body1, "expected body") return setmetatable({filename="src/fennel/macros.fnl", line=93, bytestart=2992, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=93}), condition, setmetatable({filename="src/fennel/macros.fnl", line=94, bytestart=3014, sym('do', nil, {quoted=true, filename="src/fennel/macros.fnl", line=94}), body1, ...}, getmetatable(list()))}, getmetatable(list())) end utils['fennel-module'].metadata:setall(when_2a, "fnl/arglist", {"condition", "body1", "..."}, "fnl/docstring", "Evaluate body for side-effects only when condition is truthy.") local function with_open_2a(closable_bindings, ...) local bodyfn = setmetatable({filename="src/fennel/macros.fnl", line=102, bytestart=3312, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=102}), setmetatable({}, {filename="src/fennel/macros.fnl", line=102}), ...}, getmetatable(list())) local closer = setmetatable({filename="src/fennel/macros.fnl", line=104, bytestart=3359, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=104}), sym('close-handlers_12_', nil, {filename="src/fennel/macros.fnl", line=104}), setmetatable({sym('ok_13_', nil, {filename="src/fennel/macros.fnl", line=104}), _VARARG}, {filename="src/fennel/macros.fnl", line=104}), setmetatable({filename="src/fennel/macros.fnl", line=105, bytestart=3407, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=105}), sym('ok_13_', nil, {filename="src/fennel/macros.fnl", line=105}), _VARARG, setmetatable({filename="src/fennel/macros.fnl", line=105, bytestart=3419, sym('error', nil, {quoted=true, filename="src/fennel/macros.fnl", line=105}), _VARARG, 0}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())) local traceback = setmetatable({filename="src/fennel/macros.fnl", line=106, bytestart=3454, sym('.', nil, {quoted=true, filename="src/fennel/macros.fnl", line=106}), setmetatable({filename="src/fennel/macros.fnl", line=106, bytestart=3457, sym('or', nil, {quoted=true, filename="src/fennel/macros.fnl", line=106}), setmetatable({filename="src/fennel/macros.fnl", line=106, bytestart=3461, sym('?.', nil, {quoted=true, filename="src/fennel/macros.fnl", line=106}), sym('_G', nil, {quoted=true, filename="src/fennel/macros.fnl", line=106}), "package", "loaded", _G["fennel-module-name"]()}, getmetatable(list())), sym('_G.debug', nil, {quoted=true, filename="src/fennel/macros.fnl", line=107}), setmetatable({["traceback"]=setmetatable({filename=nil, line=nil, bytestart=nil, sym('hashfn', nil, {quoted=true, filename=nil, line=nil}), ""}, getmetatable(list()))}, {filename="src/fennel/macros.fnl", line=107})}, getmetatable(list())), "traceback"}, getmetatable(list())) for i = 1, #closable_bindings, 2 do assert(_G["sym?"](closable_bindings[i]), "with-open only allows symbols in bindings") table.insert(closer, 4, setmetatable({filename="src/fennel/macros.fnl", line=111, bytestart=3752, sym(':', nil, {quoted=true, filename="src/fennel/macros.fnl", line=111}), closable_bindings[i], "close"}, getmetatable(list()))) end return setmetatable({filename="src/fennel/macros.fnl", line=112, bytestart=3795, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=112}), closable_bindings, closer, setmetatable({filename="src/fennel/macros.fnl", line=114, bytestart=3841, sym('close-handlers_12_', nil, {filename="src/fennel/macros.fnl", line=114}), setmetatable({filename="src/fennel/macros.fnl", line=114, bytestart=3858, sym('_G.xpcall', nil, {quoted=true, filename="src/fennel/macros.fnl", line=114}), bodyfn, traceback}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())) end utils['fennel-module'].metadata:setall(with_open_2a, "fnl/arglist", {"closable-bindings", "..."}, "fnl/docstring", "Like `let`, but invokes (v:close) on each binding after evaluating the body.\nThe body is evaluated inside `xpcall` so that bound values will be closed upon\nencountering an error before propagating it.") local function extract_into(iter_tbl) local into, iter_out, found_3f = {}, copy(iter_tbl) for i = #iter_tbl, 2, -1 do local item = iter_tbl[i] if (_G["sym?"](item, "&into") or ("into" == item)) then assert(not found_3f, "expected only one &into clause") found_3f = true into = iter_tbl[(i + 1)] table.remove(iter_out, i) table.remove(iter_out, i) end end assert((not found_3f or _G["sym?"](into) or _G["table?"](into) or _G["list?"](into)), "expected table, function call, or symbol in &into clause") return into, iter_out, found_3f end utils['fennel-module'].metadata:setall(extract_into, "fnl/arglist", {"iter-tbl"}) local function collect_2a(iter_tbl, key_expr, value_expr, ...) assert((_G["sequence?"](iter_tbl) and (2 <= #iter_tbl)), "expected iterator binding table") assert((nil ~= key_expr), "expected key and value expression") assert((nil == ...), "expected 1 or 2 body expressions; wrap multiple expressions with do") assert((value_expr or _G["list?"](key_expr)), "need key and value") local kv_expr = nil if (nil == value_expr) then kv_expr = key_expr else kv_expr = setmetatable({filename="src/fennel/macros.fnl", line=151, bytestart=5514, sym('values', nil, {quoted=true, filename="src/fennel/macros.fnl", line=151}), key_expr, value_expr}, getmetatable(list())) end local into, iter = extract_into(iter_tbl) return setmetatable({filename="src/fennel/macros.fnl", line=153, bytestart=5596, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=153}), setmetatable({sym('tbl_16_', nil, {filename="src/fennel/macros.fnl", line=153}), into}, {filename="src/fennel/macros.fnl", line=153}), setmetatable({filename="src/fennel/macros.fnl", line=154, bytestart=5621, sym('each', nil, {quoted=true, filename="src/fennel/macros.fnl", line=154}), iter, setmetatable({filename="src/fennel/macros.fnl", line=155, bytestart=5642, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=155}), setmetatable({setmetatable({filename="src/fennel/macros.fnl", line=155, bytestart=5648, sym('k_17_', nil, {filename="src/fennel/macros.fnl", line=155}), sym('v_18_', nil, {filename="src/fennel/macros.fnl", line=155})}, getmetatable(list())), kv_expr}, {filename="src/fennel/macros.fnl", line=155}), setmetatable({filename="src/fennel/macros.fnl", line=156, bytestart=5677, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=156}), setmetatable({filename="src/fennel/macros.fnl", line=156, bytestart=5681, sym('and', nil, {quoted=true, filename="src/fennel/macros.fnl", line=156}), setmetatable({filename="src/fennel/macros.fnl", line=156, bytestart=5686, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=156}), sym('k_17_', nil, {filename="src/fennel/macros.fnl", line=156}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=156})}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=156, bytestart=5700, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=156}), sym('v_18_', nil, {filename="src/fennel/macros.fnl", line=156}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=156})}, getmetatable(list()))}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=157, bytestart=5728, sym('tset', nil, {quoted=true, filename="src/fennel/macros.fnl", line=157}), sym('tbl_16_', nil, {filename="src/fennel/macros.fnl", line=157}), sym('k_17_', nil, {filename="src/fennel/macros.fnl", line=157}), sym('v_18_', nil, {filename="src/fennel/macros.fnl", line=157})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())), sym('tbl_16_', nil, {filename="src/fennel/macros.fnl", line=158})}, getmetatable(list())) end utils['fennel-module'].metadata:setall(collect_2a, "fnl/arglist", {"iter-tbl", "key-expr", "value-expr", "..."}, "fnl/docstring", "Return a table made by running an iterator and evaluating an expression that\nreturns key-value pairs to be inserted sequentially into the table. This can\nbe thought of as a table comprehension. The body should provide two expressions\n(used as key and value) or nil, which causes it to be omitted.\n\nFor example,\n (collect [k v (pairs {:apple \"red\" :orange \"orange\"})]\n (values v k))\nreturns\n {:red \"apple\" :orange \"orange\"}\n\nSupports an &into clause after the iterator to put results in an existing table.\nSupports early termination with an &until clause.") local function seq_collect(how, iter_tbl, value_expr, ...) assert((nil ~= value_expr), "expected table value expression") assert((nil == ...), "expected exactly one body expression. Wrap multiple expressions in do") local into, iter, has_into_3f = extract_into(iter_tbl) if has_into_3f then return setmetatable({filename="src/fennel/macros.fnl", line=170, bytestart=6252, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=170}), setmetatable({sym('tbl_19_', nil, {filename="src/fennel/macros.fnl", line=170}), into}, {filename="src/fennel/macros.fnl", line=170}), setmetatable({filename="src/fennel/macros.fnl", line=171, bytestart=6281, how, iter, setmetatable({filename="src/fennel/macros.fnl", line=171, bytestart=6293, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=171}), setmetatable({sym('val_20_', nil, {filename="src/fennel/macros.fnl", line=171}), value_expr}, {filename="src/fennel/macros.fnl", line=171}), setmetatable({filename="src/fennel/macros.fnl", line=172, bytestart=6342, sym('table.insert', nil, {quoted=true, filename="src/fennel/macros.fnl", line=172}), sym('tbl_19_', nil, {filename="src/fennel/macros.fnl", line=172}), sym('val_20_', nil, {filename="src/fennel/macros.fnl", line=172})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())), sym('tbl_19_', nil, {filename="src/fennel/macros.fnl", line=173})}, getmetatable(list())) else return setmetatable({filename="src/fennel/macros.fnl", line=177, bytestart=6618, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=177}), setmetatable({sym('tbl_21_', nil, {filename="src/fennel/macros.fnl", line=177}), setmetatable({}, {filename="src/fennel/macros.fnl", line=177})}, {filename="src/fennel/macros.fnl", line=177}), setmetatable({filename="src/fennel/macros.fnl", line=178, bytestart=6644, sym('var', nil, {quoted=true, filename="src/fennel/macros.fnl", line=178}), sym('i_22_', nil, {filename="src/fennel/macros.fnl", line=178}), 0}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=179, bytestart=6666, how, iter, setmetatable({filename="src/fennel/macros.fnl", line=180, bytestart=6695, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=180}), setmetatable({sym('val_23_', nil, {filename="src/fennel/macros.fnl", line=180}), value_expr}, {filename="src/fennel/macros.fnl", line=180}), setmetatable({filename="src/fennel/macros.fnl", line=181, bytestart=6738, sym('when', nil, {quoted=true, filename="src/fennel/macros.fnl", line=181}), setmetatable({filename="src/fennel/macros.fnl", line=181, bytestart=6744, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=181}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=181}), sym('val_23_', nil, {filename="src/fennel/macros.fnl", line=181})}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=182, bytestart=6781, sym('set', nil, {quoted=true, filename="src/fennel/macros.fnl", line=182}), sym('i_22_', nil, {filename="src/fennel/macros.fnl", line=182}), setmetatable({filename="src/fennel/macros.fnl", line=182, bytestart=6789, sym('+', nil, {quoted=true, filename="src/fennel/macros.fnl", line=182}), sym('i_22_', nil, {filename="src/fennel/macros.fnl", line=182}), 1}, getmetatable(list()))}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=183, bytestart=6820, sym('tset', nil, {quoted=true, filename="src/fennel/macros.fnl", line=183}), sym('tbl_21_', nil, {filename="src/fennel/macros.fnl", line=183}), sym('i_22_', nil, {filename="src/fennel/macros.fnl", line=183}), sym('val_23_', nil, {filename="src/fennel/macros.fnl", line=183})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())), sym('tbl_21_', nil, {filename="src/fennel/macros.fnl", line=184})}, getmetatable(list())) end end utils['fennel-module'].metadata:setall(seq_collect, "fnl/arglist", {"how", "iter-tbl", "value-expr", "..."}, "fnl/docstring", "Common part between icollect and fcollect for producing sequential tables.\n\nIteration code only differs in using the for or each keyword, the rest\nof the generated code is identical.") local function icollect_2a(iter_tbl, value_expr, ...) assert((_G["sequence?"](iter_tbl) and (2 <= #iter_tbl)), "expected iterator binding table") return seq_collect(sym('each', nil, {quoted=true, filename="src/fennel/macros.fnl", line=203}), iter_tbl, value_expr, ...) end utils['fennel-module'].metadata:setall(icollect_2a, "fnl/arglist", {"iter-tbl", "value-expr", "..."}, "fnl/docstring", "Return a sequential table made by running an iterator and evaluating an\nexpression that returns values to be inserted sequentially into the table.\nThis can be thought of as a table comprehension. If the body evaluates to nil\nthat element is omitted.\n\nFor example,\n (icollect [_ v (ipairs [1 2 3 4 5])]\n (when (not= v 3)\n (* v v)))\nreturns\n [1 4 16 25]\n\nSupports an &into clause after the iterator to put results in an existing table.\nSupports early termination with an &until clause.") local function fcollect_2a(iter_tbl, value_expr, ...) assert((_G["sequence?"](iter_tbl) and (2 < #iter_tbl)), "expected range binding table") return seq_collect(sym('for', nil, {quoted=true, filename="src/fennel/macros.fnl", line=222}), iter_tbl, value_expr, ...) end utils['fennel-module'].metadata:setall(fcollect_2a, "fnl/arglist", {"iter-tbl", "value-expr", "..."}, "fnl/docstring", "Return a sequential table made by advancing a range as specified by\nfor, and evaluating an expression that returns values to be inserted\nsequentially into the table. This can be thought of as a range\ncomprehension. If the body evaluates to nil that element is omitted.\n\nFor example,\n (fcollect [i 1 10 2]\n (when (not= i 3)\n (* i i)))\nreturns\n [1 25 49 81]\n\nSupports an &into clause after the range to put results in an existing table.\nSupports early termination with an &until clause.") local function accumulate_impl(for_3f, iter_tbl, body, ...) assert((_G["sequence?"](iter_tbl) and (4 <= #iter_tbl)), "expected initial value and iterator binding table") assert((nil ~= body), "expected body expression") assert((nil == ...), "expected exactly one body expression. Wrap multiple expressions with do") local _25_ = iter_tbl local accum_var = _25_[1] local accum_init = _25_[2] local iter = nil local function _26_(...) if for_3f then return "for" else return "each" end end iter = sym(_26_(...)) local function _27_(...) if _G["list?"](accum_var) then return list(sym("values"), unpack(accum_var)) else return accum_var end end return setmetatable({filename="src/fennel/macros.fnl", line=232, bytestart=8695, sym('do', nil, {quoted=true, filename="src/fennel/macros.fnl", line=232}), setmetatable({filename="src/fennel/macros.fnl", line=233, bytestart=8706, sym('var', nil, {quoted=true, filename="src/fennel/macros.fnl", line=233}), accum_var, accum_init}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=234, bytestart=8742, iter, {unpack(iter_tbl, 3)}, setmetatable({filename="src/fennel/macros.fnl", line=235, bytestart=8786, sym('set', nil, {quoted=true, filename="src/fennel/macros.fnl", line=235}), accum_var, body}, getmetatable(list()))}, getmetatable(list())), _27_(...)}, getmetatable(list())) end utils['fennel-module'].metadata:setall(accumulate_impl, "fnl/arglist", {"for?", "iter-tbl", "body", "..."}) local function accumulate_2a(iter_tbl, body, ...) return accumulate_impl(false, iter_tbl, body, ...) end utils['fennel-module'].metadata:setall(accumulate_2a, "fnl/arglist", {"iter-tbl", "body", "..."}, "fnl/docstring", "Accumulation macro.\n\nIt takes a binding table and an expression as its arguments. In the binding\ntable, the first form starts out bound to the second value, which is an initial\naccumulator. The rest are an iterator binding table in the format `each` takes.\n\nIt runs through the iterator in each step of which the given expression is\nevaluated, and the accumulator is set to the value of the expression. It\neventually returns the final value of the accumulator.\n\nFor example,\n (accumulate [total 0\n _ n (pairs {:apple 2 :orange 3})]\n (+ total n))\nreturns 5") local function faccumulate_2a(iter_tbl, body, ...) return accumulate_impl(true, iter_tbl, body, ...) end utils['fennel-module'].metadata:setall(faccumulate_2a, "fnl/arglist", {"iter-tbl", "body", "..."}, "fnl/docstring", "Identical to accumulate, but after the accumulator the binding table is the\nsame as `for` instead of `each`. Like collect to fcollect, will iterate over a\nnumerical range like `for` rather than an iterator.") local function partial_2a(f, ...) assert(f, "expected a function to partially apply") local bindings = {} local args = {} for _, arg in ipairs({...}) do if utils["idempotent-expr?"](arg) then table.insert(args, arg) else local name = gensym() table.insert(bindings, name) table.insert(bindings, arg) table.insert(args, name) end end local body = list(f, unpack(args)) table.insert(body, _VARARG) if (nil == bindings[1]) then return setmetatable({filename="src/fennel/macros.fnl", line=280, bytestart=10477, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=280}), setmetatable({_VARARG}, {filename="src/fennel/macros.fnl", line=280}), body}, getmetatable(list())) else return setmetatable({filename="src/fennel/macros.fnl", line=281, bytestart=10510, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=281}), bindings, setmetatable({filename="src/fennel/macros.fnl", line=282, bytestart=10538, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=282}), setmetatable({_VARARG}, {filename="src/fennel/macros.fnl", line=282}), body}, getmetatable(list()))}, getmetatable(list())) end end utils['fennel-module'].metadata:setall(partial_2a, "fnl/arglist", {"f", "..."}, "fnl/docstring", "Return a function with all arguments partially applied to f.") local function pick_args_2a(n, f) if (_G.io and _G.io.stderr) then do end (_G.io.stderr):write("-- WARNING: pick-args is deprecated and will be removed in the future.\n") end local bindings = {} for i = 1, n do bindings[i] = gensym() end return setmetatable({filename="src/fennel/macros.fnl", line=291, bytestart=10877, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=291}), bindings, setmetatable({filename="src/fennel/macros.fnl", line=291, bytestart=10891, f, unpack(bindings)}, getmetatable(list()))}, getmetatable(list())) end utils['fennel-module'].metadata:setall(pick_args_2a, "fnl/arglist", {"n", "f"}, "fnl/docstring", "Create a function of arity n that applies its arguments to f. Deprecated.") local function lambda_2a(...) local args = {...} local args_len = #args local has_internal_name_3f = _G["sym?"](args[1]) local arglist = nil if has_internal_name_3f then arglist = args[2] else arglist = args[1] end local metadata_position = nil if has_internal_name_3f then metadata_position = 3 else metadata_position = 2 end local _, check_position = _G["get-function-metadata"]({"lambda", ...}, arglist, metadata_position) local empty_body_3f = (args_len < check_position) local function check_21(a) if _G["table?"](a) then for _0, a0 in pairs(a) do check_21(a0) end return nil else local _33_ do local as = tostring(a) local as1 = as:sub(1, 1) _33_ = not (("_" == as1) or ("?" == as1) or ("&" == as) or ("..." == as) or ("&as" == as)) end if _33_ then return table.insert(args, check_position, setmetatable({filename="src/fennel/macros.fnl", line=312, bytestart=11826, sym('_G.assert', nil, {quoted=true, filename="src/fennel/macros.fnl", line=312}), setmetatable({filename="src/fennel/macros.fnl", line=312, bytestart=11837, sym('not=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=312}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=312}), a}, getmetatable(list())), ("Missing argument %s on %s:%s"):format(tostring(a), (a.filename or "unknown"), (a.line or "?"))}, getmetatable(list()))) end end end utils['fennel-module'].metadata:setall(check_21, "fnl/arglist", {"a"}) assert(("table" == type(arglist)), "expected arg list") for _0, a in ipairs(arglist) do check_21(a) end if empty_body_3f then table.insert(args, sym("nil")) end return setmetatable({filename="src/fennel/macros.fnl", line=321, bytestart=12271, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=321}), unpack(args)}, getmetatable(list())) end utils['fennel-module'].metadata:setall(lambda_2a, "fnl/arglist", {"..."}, "fnl/docstring", "Function literal with nil-checked arguments.\nLike `fn`, but will throw an exception if a declared argument is passed in as\nnil, unless that argument's name begins with a question mark.") local function macro_2a(name, ...) assert(_G["sym?"](name), "expected symbol for macro name") local args = {...} return setmetatable({filename="src/fennel/macros.fnl", line=327, bytestart=12423, sym('macros', nil, {quoted=true, filename="src/fennel/macros.fnl", line=327}), setmetatable({[tostring(name)]=setmetatable({filename="src/fennel/macros.fnl", line=327, bytestart=12449, sym('fn', nil, {quoted=true, filename="src/fennel/macros.fnl", line=327}), unpack(args)}, getmetatable(list()))}, {filename="src/fennel/macros.fnl", line=327})}, getmetatable(list())) end utils['fennel-module'].metadata:setall(macro_2a, "fnl/arglist", {"name", "..."}, "fnl/docstring", "Define a single macro.") local function macrodebug_2a(form, return_3f) local handle = nil if return_3f then handle = sym('do', nil, {quoted=true, filename="src/fennel/macros.fnl", line=332}) else handle = sym('print', nil, {quoted=true, filename="src/fennel/macros.fnl", line=332}) end return setmetatable({filename="src/fennel/macros.fnl", line=335, bytestart=12845, handle, view(macroexpand(form, _SCOPE), {["detect-cycles?"] = false})}, getmetatable(list())) end utils['fennel-module'].metadata:setall(macrodebug_2a, "fnl/arglist", {"form", "return?"}, "fnl/docstring", "Print the resulting form after performing macroexpansion.\nWith a second argument, returns expanded form as a string instead of printing.") local function import_macros_2a(binding1, module_name1, ...) assert((binding1 and module_name1 and (0 == (select("#", ...) % 2))), "expected even number of binding/modulename pairs") for i = 1, select("#", binding1, module_name1, ...), 2 do local binding, modname = select(i, binding1, module_name1, ...) local scope = _G["get-scope"]() local expr = setmetatable({filename="src/fennel/macros.fnl", line=354, bytestart=14006, sym('import-macros', nil, {quoted=true, filename="src/fennel/macros.fnl", line=354}), modname}, getmetatable(list())) local filename = nil if _G["list?"](modname) then filename = modname[1].filename else filename = "unknown" end local _ = nil expr.filename = filename _ = nil local macros_2a = _SPECIALS["require-macros"](expr, scope, {}, binding) if _G["sym?"](binding) then scope.macros[binding[1]] = macros_2a elseif _G["table?"](binding) then for macro_name, _38_0 in pairs(binding) do local _39_ = _38_0 local import_key = _39_[1] assert(("function" == type(macros_2a[macro_name])), ("macro " .. macro_name .. " not found in module " .. tostring(modname))) scope.macros[import_key] = macros_2a[macro_name] end end end return nil end utils['fennel-module'].metadata:setall(import_macros_2a, "fnl/arglist", {"binding1", "module-name1", "..."}, "fnl/docstring", "Bind a table of macros from each macro module according to a binding form.\nEach binding form can be either a symbol or a k/v destructuring table.\nExample:\n (import-macros mymacros :my-macros ; bind to symbol\n {:macro1 alias : macro2} :proj.macros) ; import by name") local function assert_repl_2a(condition, ...) do local _ = {["fnl/arglist"] = {condition, _G["?message"], ...}} end local function add_locals(_41_0, locals) local _42_ = _41_0 local parent = _42_["parent"] local symmeta = _42_["symmeta"] for name in pairs(symmeta) do locals[name] = sym(name) end if parent then return add_locals(parent, locals) else return locals end end utils['fennel-module'].metadata:setall(add_locals, "fnl/arglist", {"#<table>", "locals"}) return setmetatable({filename="src/fennel/macros.fnl", line=379, bytestart=15225, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=379}), setmetatable({sym('unpack_44_', nil, {filename="src/fennel/macros.fnl", line=379}), setmetatable({filename="src/fennel/macros.fnl", line=379, bytestart=15239, sym('or', nil, {quoted=true, filename="src/fennel/macros.fnl", line=379}), sym('table.unpack', nil, {quoted=true, filename="src/fennel/macros.fnl", line=379}), sym('_G.unpack', nil, {quoted=true, filename="src/fennel/macros.fnl", line=379})}, getmetatable(list())), sym('pack_46_', nil, {filename="src/fennel/macros.fnl", line=380}), setmetatable({filename="src/fennel/macros.fnl", line=380, bytestart=15282, sym('or', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380}), sym('table.pack', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380}), setmetatable({filename=nil, line=nil, bytestart=nil, sym('hashfn', nil, {quoted=true, filename=nil, line=nil}), setmetatable({filename="src/fennel/macros.fnl", line=380, bytestart=15298, sym('doto', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380}), setmetatable({sym('$...', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380})}, {filename="src/fennel/macros.fnl", line=380}), setmetatable({filename="src/fennel/macros.fnl", line=380, bytestart=15311, sym('tset', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380}), "n", setmetatable({filename="src/fennel/macros.fnl", line=380, bytestart=15320, sym('select', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380}), "#", sym('$...', nil, {quoted=true, filename="src/fennel/macros.fnl", line=380})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())), sym('vals_45_', nil, {filename="src/fennel/macros.fnl", line=383}), setmetatable({filename="src/fennel/macros.fnl", line=383, bytestart=15493, sym('pack_46_', nil, {filename="src/fennel/macros.fnl", line=383}), condition, ...}, getmetatable(list())), sym('condition_47_', nil, {filename="src/fennel/macros.fnl", line=384}), setmetatable({filename="src/fennel/macros.fnl", line=384, bytestart=15537, sym('.', nil, {quoted=true, filename="src/fennel/macros.fnl", line=384}), sym('vals_45_', nil, {filename="src/fennel/macros.fnl", line=384}), 1}, getmetatable(list())), sym('message_48_', nil, {filename="src/fennel/macros.fnl", line=385}), setmetatable({filename="src/fennel/macros.fnl", line=385, bytestart=15567, sym('or', nil, {quoted=true, filename="src/fennel/macros.fnl", line=385}), setmetatable({filename="src/fennel/macros.fnl", line=385, bytestart=15571, sym('.', nil, {quoted=true, filename="src/fennel/macros.fnl", line=385}), sym('vals_45_', nil, {filename="src/fennel/macros.fnl", line=385}), 2}, getmetatable(list())), "assertion failed, entering repl."}, getmetatable(list()))}, {filename="src/fennel/macros.fnl", line=379}), setmetatable({filename="src/fennel/macros.fnl", line=386, bytestart=15625, sym('if', nil, {quoted=true, filename="src/fennel/macros.fnl", line=386}), setmetatable({filename="src/fennel/macros.fnl", line=386, bytestart=15629, sym('not', nil, {quoted=true, filename="src/fennel/macros.fnl", line=386}), sym('condition_47_', nil, {filename="src/fennel/macros.fnl", line=386})}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=387, bytestart=15655, sym('let', nil, {quoted=true, filename="src/fennel/macros.fnl", line=387}), setmetatable({sym('opts_49_', nil, {filename="src/fennel/macros.fnl", line=387}), setmetatable({["assert-repl?"]=true}, {filename="src/fennel/macros.fnl", line=387}), sym('fennel_50_', nil, {filename="src/fennel/macros.fnl", line=388}), setmetatable({filename="src/fennel/macros.fnl", line=388, bytestart=15711, sym('require', nil, {quoted=true, filename="src/fennel/macros.fnl", line=388}), _G["fennel-module-name"]()}, getmetatable(list())), sym('locals_51_', nil, {filename="src/fennel/macros.fnl", line=389}), add_locals(_G["get-scope"](), {})}, {filename="src/fennel/macros.fnl", line=387}), setmetatable({filename="src/fennel/macros.fnl", line=390, bytestart=15807, sym('set', nil, {quoted=true, filename="src/fennel/macros.fnl", line=390}), sym('opts_49_.message', nil, {filename="src/fennel/macros.fnl", line=390}), setmetatable({filename="src/fennel/macros.fnl", line=390, bytestart=15826, sym('fennel_50_.traceback', nil, {filename="src/fennel/macros.fnl", line=390}), sym('message_48_', nil, {filename="src/fennel/macros.fnl", line=390})}, getmetatable(list()))}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=391, bytestart=15867, sym('each', nil, {quoted=true, filename="src/fennel/macros.fnl", line=391}), setmetatable({sym('k_52_', nil, {filename="src/fennel/macros.fnl", line=391}), sym('v_53_', nil, {filename="src/fennel/macros.fnl", line=391}), setmetatable({filename="src/fennel/macros.fnl", line=391, bytestart=15880, sym('pairs', nil, {quoted=true, filename="src/fennel/macros.fnl", line=391}), sym('_G', nil, {quoted=true, filename="src/fennel/macros.fnl", line=391})}, getmetatable(list()))}, {filename="src/fennel/macros.fnl", line=391}), setmetatable({filename="src/fennel/macros.fnl", line=392, bytestart=15905, sym('when', nil, {quoted=true, filename="src/fennel/macros.fnl", line=392}), setmetatable({filename="src/fennel/macros.fnl", line=392, bytestart=15911, sym('=', nil, {quoted=true, filename="src/fennel/macros.fnl", line=392}), sym('nil', nil, {quoted=true, filename="src/fennel/macros.fnl", line=392}), setmetatable({filename="src/fennel/macros.fnl", line=392, bytestart=15918, sym('.', nil, {quoted=true, filename="src/fennel/macros.fnl", line=392}), sym('locals_51_', nil, {filename="src/fennel/macros.fnl", line=392}), sym('k_52_', nil, {filename="src/fennel/macros.fnl", line=392})}, getmetatable(list()))}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=392, bytestart=15934, sym('tset', nil, {quoted=true, filename="src/fennel/macros.fnl", line=392}), sym('locals_51_', nil, {filename="src/fennel/macros.fnl", line=392}), sym('k_52_', nil, {filename="src/fennel/macros.fnl", line=392}), sym('v_53_', nil, {filename="src/fennel/macros.fnl", line=392})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=393, bytestart=15968, sym('set', nil, {quoted=true, filename="src/fennel/macros.fnl", line=393}), sym('opts_49_.env', nil, {filename="src/fennel/macros.fnl", line=393}), sym('locals_51_', nil, {filename="src/fennel/macros.fnl", line=393})}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=394, bytestart=16003, sym('_G.assert', nil, {quoted=true, filename="src/fennel/macros.fnl", line=394}), setmetatable({filename="src/fennel/macros.fnl", line=394, bytestart=16014, sym('fennel_50_.repl', nil, {filename="src/fennel/macros.fnl", line=394}), sym('opts_49_', nil, {filename="src/fennel/macros.fnl", line=394})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())), setmetatable({filename="src/fennel/macros.fnl", line=395, bytestart=16046, sym('values', nil, {quoted=true, filename="src/fennel/macros.fnl", line=395}), setmetatable({filename="src/fennel/macros.fnl", line=395, bytestart=16054, sym('unpack_44_', nil, {filename="src/fennel/macros.fnl", line=395}), sym('vals_45_', nil, {filename="src/fennel/macros.fnl", line=395}), 1, sym('vals_45_.n', nil, {filename="src/fennel/macros.fnl", line=395})}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list()))}, getmetatable(list())) end utils['fennel-module'].metadata:setall(assert_repl_2a, "fnl/arglist", {"condition", "..."}, "fnl/docstring", "Enter into a debug REPL and print the message when condition is false/nil.\nWorks as a drop-in replacement for Lua's `assert`.\nREPL `,return` command returns values to assert in place to continue execution.") return {["->"] = __3e_2a, ["->>"] = __3e_3e_2a, ["-?>"] = __3f_3e_2a, ["-?>>"] = __3f_3e_3e_2a, ["?."] = _3fdot, ["\206\187"] = lambda_2a, ["assert-repl"] = assert_repl_2a, ["import-macros"] = import_macros_2a, ["pick-args"] = pick_args_2a, ["with-open"] = with_open_2a, accumulate = accumulate_2a, collect = collect_2a, doto = doto_2a, faccumulate = faccumulate_2a, fcollect = fcollect_2a, icollect = icollect_2a, lambda = lambda_2a, macro = macro_2a, macrodebug = macrodebug_2a, partial = partial_2a, when = when_2a} ]===], env) load_macros([===[local function copy(t) local tbl_14_ = {} for k, v in pairs(t) do local k_15_, v_16_ = k, v if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end return tbl_14_ end utils['fennel-module'].metadata:setall(copy, "fnl/arglist", {"t"}) local function double_eval_safe_3f(x, type) return (("number" == type) or ("string" == type) or ("boolean" == type) or (_G["sym?"](x) and not _G["multi-sym?"](x))) end utils['fennel-module'].metadata:setall(double_eval_safe_3f, "fnl/arglist", {"x", "type"}) local function with(opts, k) local _2_0 = copy(opts) _2_0[k] = true return _2_0 end utils['fennel-module'].metadata:setall(with, "fnl/arglist", {"opts", "k"}) local function without(opts, k) local _3_0 = copy(opts) _3_0[k] = nil return _3_0 end utils['fennel-module'].metadata:setall(without, "fnl/arglist", {"opts", "k"}) local function case_values(vals, pattern, unifications, case_pattern, opts) local condition = setmetatable({filename="src/fennel/match.fnl", line=20, bytestart=528, sym('and', nil, {quoted=true, filename="src/fennel/match.fnl", line=20})}, getmetatable(list())) local bindings = {} for i, pat in ipairs(pattern) do local subcondition, subbindings = case_pattern({vals[i]}, pat, unifications, without(opts, "multival?")) table.insert(condition, subcondition) local tbl_17_ = bindings local i_18_ = #tbl_17_ for _, b in ipairs(subbindings) do local val_19_ = b if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end end return condition, bindings end utils['fennel-module'].metadata:setall(case_values, "fnl/arglist", {"vals", "pattern", "unifications", "case-pattern", "opts"}) local function case_table(val, pattern, unifications, case_pattern, opts, _3ftop) local condition = nil if ("table" == _3ftop) then condition = setmetatable({filename="src/fennel/match.fnl", line=30, bytestart=1005, sym('and', nil, {quoted=true, filename="src/fennel/match.fnl", line=30})}, getmetatable(list())) else condition = setmetatable({filename="src/fennel/match.fnl", line=30, bytestart=1012, sym('and', nil, {quoted=true, filename="src/fennel/match.fnl", line=30}), setmetatable({filename="src/fennel/match.fnl", line=30, bytestart=1017, sym('=', nil, {quoted=true, filename="src/fennel/match.fnl", line=30}), setmetatable({filename="src/fennel/match.fnl", line=30, bytestart=1020, sym('_G.type', nil, {quoted=true, filename="src/fennel/match.fnl", line=30}), val}, getmetatable(list())), "table"}, getmetatable(list()))}, getmetatable(list())) end local bindings = {} for k, pat in pairs(pattern) do if _G["sym?"](pat, "&") then local rest_pat = pattern[(k + 1)] local rest_val = setmetatable({filename="src/fennel/match.fnl", line=35, bytestart=1195, sym('select', nil, {quoted=true, filename="src/fennel/match.fnl", line=35}), k, setmetatable({filename="src/fennel/match.fnl", line=35, bytestart=1206, setmetatable({filename="src/fennel/match.fnl", line=35, bytestart=1207, sym('or', nil, {quoted=true, filename="src/fennel/match.fnl", line=35}), sym('table.unpack', nil, {quoted=true, filename="src/fennel/match.fnl", line=35}), sym('_G.unpack', nil, {quoted=true, filename="src/fennel/match.fnl", line=35})}, getmetatable(list())), val}, getmetatable(list()))}, getmetatable(list())) local subcondition = case_table(setmetatable({filename="src/fennel/match.fnl", line=36, bytestart=1284, sym('pick-values', nil, {quoted=true, filename="src/fennel/match.fnl", line=36}), 1, rest_val}, getmetatable(list())), rest_pat, unifications, case_pattern, without(opts, "multival?")) if not _G["sym?"](rest_pat) then table.insert(condition, subcondition) end assert((nil == pattern[(k + 2)]), "expected & rest argument before last parameter") table.insert(bindings, rest_pat) table.insert(bindings, {rest_val}) elseif _G["sym?"](k, "&as") then table.insert(bindings, pat) table.insert(bindings, val) elseif (("number" == type(k)) and _G["sym?"](pat, "&as")) then assert((nil == pattern[(k + 2)]), "expected &as argument before last parameter") table.insert(bindings, pattern[(k + 1)]) table.insert(bindings, val) elseif (("number" ~= type(k)) or (not _G["sym?"](pattern[(k - 1)], "&as") and not _G["sym?"](pattern[(k - 1)], "&"))) then local subval = setmetatable({filename="src/fennel/match.fnl", line=58, bytestart=2418, sym('.', nil, {quoted=true, filename="src/fennel/match.fnl", line=58}), val, k}, getmetatable(list())) local subcondition, subbindings = case_pattern({subval}, pat, unifications, without(opts, "multival?")) table.insert(condition, subcondition) local tbl_17_ = bindings local i_18_ = #tbl_17_ for _, b in ipairs(subbindings) do local val_19_ = b if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end end end return condition, bindings end utils['fennel-module'].metadata:setall(case_table, "fnl/arglist", {"val", "pattern", "unifications", "case-pattern", "opts", "?top"}) local function case_guard(vals, condition, guards, unifications, case_pattern, opts) if guards[1] then local pcondition, bindings = case_pattern(vals, condition, unifications, opts) local condition0 = setmetatable({filename="src/fennel/match.fnl", line=69, bytestart=3002, sym('and', nil, {quoted=true, filename="src/fennel/match.fnl", line=69}), unpack(guards)}, getmetatable(list())) return setmetatable({filename="src/fennel/match.fnl", line=70, bytestart=3042, sym('and', nil, {quoted=true, filename="src/fennel/match.fnl", line=70}), pcondition, setmetatable({filename="src/fennel/match.fnl", line=71, bytestart=3080, sym('let', nil, {quoted=true, filename="src/fennel/match.fnl", line=71}), bindings, condition0}, getmetatable(list()))}, getmetatable(list())), bindings else return case_pattern(vals, condition, unifications, opts) end end utils['fennel-module'].metadata:setall(case_guard, "fnl/arglist", {"vals", "condition", "guards", "unifications", "case-pattern", "opts"}) local function symbols_in_pattern(pattern) if _G["list?"](pattern) then if (_G["sym?"](pattern[1], "where") or _G["sym?"](pattern[1], "=")) then return symbols_in_pattern(pattern[2]) elseif _G["sym?"](pattern[2], "?") then return symbols_in_pattern(pattern[1]) else local result = {} for _, child_pattern in ipairs(pattern) do local tbl_14_ = result for name, symbol in pairs(symbols_in_pattern(child_pattern)) do local k_15_, v_16_ = name, symbol if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end end return result end elseif _G["sym?"](pattern) then if (not _G["sym?"](pattern, "or") and not _G["sym?"](pattern, "nil")) then return {[tostring(pattern)] = pattern} else return {} end elseif (type(pattern) == "table") then local result = {} for key_pattern, value_pattern in pairs(pattern) do do local tbl_14_ = result for name, symbol in pairs(symbols_in_pattern(key_pattern)) do local k_15_, v_16_ = name, symbol if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end end local tbl_14_ = result for name, symbol in pairs(symbols_in_pattern(value_pattern)) do local k_15_, v_16_ = name, symbol if ((k_15_ ~= nil) and (v_16_ ~= nil)) then tbl_14_[k_15_] = v_16_ end end end return result else return {} end end utils['fennel-module'].metadata:setall(symbols_in_pattern, "fnl/arglist", {"pattern"}, "fnl/docstring", "gives the set of symbols inside a pattern") local function symbols_in_every_pattern(pattern_list, infer_unification_3f) local _3fsymbols = nil do local _3fsymbols0 = nil for _, pattern in ipairs(pattern_list) do local in_pattern = symbols_in_pattern(pattern) if _3fsymbols0 then for name in pairs(_3fsymbols0) do if not in_pattern[name] then _3fsymbols0[name] = nil end end _3fsymbols0 = _3fsymbols0 else _3fsymbols0 = in_pattern end end _3fsymbols = _3fsymbols0 end local tbl_17_ = {} local i_18_ = #tbl_17_ for _, symbol in pairs((_3fsymbols or {})) do local val_19_ = nil if not (infer_unification_3f and _G["in-scope?"](symbol)) then val_19_ = symbol else val_19_ = nil end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end utils['fennel-module'].metadata:setall(symbols_in_every_pattern, "fnl/arglist", {"pattern-list", "infer-unification?"}, "fnl/docstring", "gives a list of symbols that are present in every pattern in the list") local function case_or(vals, pattern, guards, unifications, case_pattern, opts) local pattern0 = {unpack(pattern, 2)} local bindings = symbols_in_every_pattern(pattern0, opts["infer-unification?"]) if (nil == bindings[1]) then local condition = nil do local tbl_17_ = setmetatable({filename="src/fennel/match.fnl", line=125, bytestart=5354, sym('or', nil, {quoted=true, filename="src/fennel/match.fnl", line=125})}, getmetatable(list())) local i_18_ = #tbl_17_ for _, subpattern in ipairs(pattern0) do local val_19_ = case_pattern(vals, subpattern, unifications, opts) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end condition = tbl_17_ end local _21_ if guards[1] then _21_ = setmetatable({filename="src/fennel/match.fnl", line=128, bytestart=5495, sym('and', nil, {quoted=true, filename="src/fennel/match.fnl", line=128}), condition, unpack(guards)}, getmetatable(list())) else _21_ = condition end return _21_, {} else local matched_3f = gensym("matched?") local bindings_mangled = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for _, binding in ipairs(bindings) do local val_19_ = gensym(tostring(binding)) if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end bindings_mangled = tbl_17_ end local pre_bindings = setmetatable({filename="src/fennel/match.fnl", line=135, bytestart=5870, sym('if', nil, {quoted=true, filename="src/fennel/match.fnl", line=135})}, getmetatable(list())) for _, subpattern in ipairs(pattern0) do local subcondition, subbindings = case_guard(vals, subpattern, guards, {}, case_pattern, opts) table.insert(pre_bindings, subcondition) table.insert(pre_bindings, setmetatable({filename="src/fennel/match.fnl", line=139, bytestart=6116, sym('let', nil, {quoted=true, filename="src/fennel/match.fnl", line=139}), subbindings, setmetatable({filename="src/fennel/match.fnl", line=140, bytestart=6176, sym('values', nil, {quoted=true, filename="src/fennel/match.fnl", line=140}), true, unpack(bindings)}, getmetatable(list()))}, getmetatable(list()))) end return matched_3f, {setmetatable({filename="src/fennel/match.fnl", line=142, bytestart=6256, unpack(bindings)}, getmetatable(list())), setmetatable({filename="src/fennel/match.fnl", line=142, bytestart=6278, sym('values', nil, {quoted=true, filename="src/fennel/match.fnl", line=142}), unpack(bindings_mangled)}, getmetatable(list()))}, {setmetatable({filename="src/fennel/match.fnl", line=143, bytestart=6333, matched_3f, unpack(bindings_mangled)}, getmetatable(list())), pre_bindings} end end utils['fennel-module'].metadata:setall(case_or, "fnl/arglist", {"vals", "pattern", "guards", "unifications", "case-pattern", "opts"}) local function case_pattern(vals, pattern, unifications, opts, _3ftop) local _25_ = vals local val = _25_[1] if (_G["sym?"](pattern) and (_G["sym?"](pattern, "nil") or (opts["infer-unification?"] and _G["in-scope?"](pattern) and not _G["sym?"](pattern, "_")) or (opts["infer-unification?"] and _G["multi-sym?"](pattern) and _G["in-scope?"](_G["multi-sym?"](pattern)[1])))) then return setmetatable({filename="src/fennel/match.fnl", line=177, bytestart=8254, sym('=', nil, {quoted=true, filename="src/fennel/match.fnl", line=177}), val, pattern}, getmetatable(list())), {} elseif (_G["sym?"](pattern) and unifications[tostring(pattern)]) then return setmetatable({filename="src/fennel/match.fnl", line=180, bytestart=8402, sym('=', nil, {quoted=true, filename="src/fennel/match.fnl", line=180}), unifications[tostring(pattern)], val}, getmetatable(list())), {} elseif _G["sym?"](pattern) then local wildcard_3f = tostring(pattern):find("^_") if not wildcard_3f then unifications[tostring(pattern)] = val end local _27_ if (wildcard_3f or string.find(tostring(pattern), "^?")) then _27_ = true else _27_ = setmetatable({filename="src/fennel/match.fnl", line=186, bytestart=8741, sym('not=', nil, {quoted=true, filename="src/fennel/match.fnl", line=186}), sym("nil"), val}, getmetatable(list())) end return _27_, {pattern, val} elseif (_G["list?"](pattern) and _G["sym?"](pattern[1], "=") and _G["sym?"](pattern[2])) then local bind = pattern[2] _G["assert-compile"]((2 == #pattern), "(=) should take only one argument", pattern) _G["assert-compile"](not opts["infer-unification?"], "(=) cannot be used inside of match", pattern) _G["assert-compile"](opts["in-where?"], "(=) must be used in (where) patterns", pattern) _G["assert-compile"]((_G["sym?"](bind) and not _G["sym?"](bind, "nil") and "= has to bind to a symbol" and bind)) return setmetatable({filename="src/fennel/match.fnl", line=196, bytestart=9355, sym('=', nil, {quoted=true, filename="src/fennel/match.fnl", line=196}), val, bind}, getmetatable(list())), {} elseif (_G["list?"](pattern) and _G["sym?"](pattern[1], "where") and _G["list?"](pattern[2]) and _G["sym?"](pattern[2][1], "or")) then _G["assert-compile"](_3ftop, "can't nest (where) pattern", pattern) return case_or(vals, pattern[2], {unpack(pattern, 3)}, unifications, case_pattern, with(opts, "in-where?")) elseif (_G["list?"](pattern) and _G["sym?"](pattern[1], "where")) then _G["assert-compile"](_3ftop, "can't nest (where) pattern", pattern) return case_guard(vals, pattern[2], {unpack(pattern, 3)}, unifications, case_pattern, with(opts, "in-where?")) elseif (_G["list?"](pattern) and _G["sym?"](pattern[1], "or")) then _G["assert-compile"](_3ftop, "can't nest (or) pattern", pattern) _G["assert-compile"](false, "(or) must be used in (where) patterns", pattern) return case_or(vals, pattern, {}, unifications, case_pattern, opts) elseif (_G["list?"](pattern) and _G["sym?"](pattern[2], "?")) then _G["assert-compile"](opts["legacy-guard-allowed?"], "legacy guard clause not supported in case", pattern) return case_guard(vals, pattern[1], {unpack(pattern, 3)}, unifications, case_pattern, opts) elseif _G["list?"](pattern) then _G["assert-compile"](opts["multival?"], "can't nest multi-value destructuring", pattern) return case_values(vals, pattern, unifications, case_pattern, opts) elseif (type(pattern) == "table") then return case_table(val, pattern, unifications, case_pattern, opts, _3ftop) else return setmetatable({filename="src/fennel/match.fnl", line=228, bytestart=11092, sym('=', nil, {quoted=true, filename="src/fennel/match.fnl", line=228}), val, pattern}, getmetatable(list())), {} end end utils['fennel-module'].metadata:setall(case_pattern, "fnl/arglist", {"vals", "pattern", "unifications", "opts", "?top"}, "fnl/docstring", "Take the AST of values and a single pattern and returns a condition\nto determine if it matches as well as a list of bindings to\nintroduce for the duration of the body if it does match.") local function add_pre_bindings(out, pre_bindings) if pre_bindings then local tail = setmetatable({filename="src/fennel/match.fnl", line=237, bytestart=11490, sym('if', nil, {quoted=true, filename="src/fennel/match.fnl", line=237})}, getmetatable(list())) table.insert(out, true) table.insert(out, setmetatable({filename="src/fennel/match.fnl", line=239, bytestart=11555, sym('let', nil, {quoted=true, filename="src/fennel/match.fnl", line=239}), pre_bindings, tail}, getmetatable(list()))) return tail else return out end end utils['fennel-module'].metadata:setall(add_pre_bindings, "fnl/arglist", {"out", "pre-bindings"}, "fnl/docstring", "Decide when to switch from the current `if` AST to a new one") local function case_condition(vals, clauses, match_3f, top_table_3f) local root = setmetatable({filename="src/fennel/match.fnl", line=248, bytestart=11896, sym('if', nil, {quoted=true, filename="src/fennel/match.fnl", line=248})}, getmetatable(list())) do local out = root for i = 1, #clauses, 2 do local pattern = clauses[i] local body = clauses[(i + 1)] local condition, bindings, pre_bindings = nil, nil, nil local function _31_() if top_table_3f then return "table" else return true end end condition, bindings, pre_bindings = case_pattern(vals, pattern, {}, {["infer-unification?"] = match_3f, ["legacy-guard-allowed?"] = match_3f, ["multival?"] = true}, _31_()) local out0 = add_pre_bindings(out, pre_bindings) table.insert(out0, condition) table.insert(out0, setmetatable({filename="src/fennel/match.fnl", line=261, bytestart=12633, sym('let', nil, {quoted=true, filename="src/fennel/match.fnl", line=261}), bindings, body}, getmetatable(list()))) out = out0 end end return root end utils['fennel-module'].metadata:setall(case_condition, "fnl/arglist", {"vals", "clauses", "match?", "top-table?"}, "fnl/docstring", "Construct the actual `if` AST for the given match values and clauses.") local function count_case_multival(pattern) if (_G["list?"](pattern) and _G["sym?"](pattern[2], "?")) then return count_case_multival(pattern[1]) elseif (_G["list?"](pattern) and _G["sym?"](pattern[1], "where")) then return count_case_multival(pattern[2]) elseif (_G["list?"](pattern) and _G["sym?"](pattern[1], "or")) then local longest = 0 for _, child_pattern in ipairs(pattern) do longest = math.max(longest, count_case_multival(child_pattern)) end return longest elseif _G["list?"](pattern) then return #pattern else return 1 end end utils['fennel-module'].metadata:setall(count_case_multival, "fnl/arglist", {"pattern"}, "fnl/docstring", "Identify the amount of multival values that a pattern requires.") local function case_count_syms(clauses) local patterns = nil do local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 1, #clauses, 2 do local val_19_ = clauses[i] if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end patterns = tbl_17_ end local longest = 0 for _, pattern in ipairs(patterns) do longest = math.max(longest, count_case_multival(pattern)) end return longest end utils['fennel-module'].metadata:setall(case_count_syms, "fnl/arglist", {"clauses"}, "fnl/docstring", "Find the length of the largest multi-valued clause") local function maybe_optimize_table(val, clauses) local _34_ do local all = _G["sequence?"](val) for i = 1, #clauses, 2 do if not all then break end local function _35_() local all2 = next(clauses[i]) for _, d in ipairs(clauses[i]) do if not all2 then break end all2 = (all2 and (not _G["sym?"](d) or not tostring(d):find("^&"))) end return all2 end all = (_G["sequence?"](clauses[i]) and _35_()) end _34_ = all end if _34_ then local function _36_() local tbl_17_ = {} local i_18_ = #tbl_17_ for i = 1, #clauses do local val_19_ = nil if (1 == (i % 2)) then val_19_ = list(unpack(clauses[i])) else val_19_ = clauses[i] end if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end return tbl_17_ end return setmetatable({filename="src/fennel/match.fnl", line=293, bytestart=13916, sym('values', nil, {quoted=true, filename="src/fennel/match.fnl", line=293}), unpack(val)}, getmetatable(list())), _36_() else return val, clauses end end utils['fennel-module'].metadata:setall(maybe_optimize_table, "fnl/arglist", {"val", "clauses"}) local function case_impl(match_3f, init_val, ...) assert((init_val ~= nil), "missing subject") assert((0 == math.fmod(select("#", ...), 2)), "expected even number of pattern/body pairs") assert((0 ~= select("#", ...)), "expected at least one pattern/body pair") local val, clauses = maybe_optimize_table(init_val, {...}) local vals_count = case_count_syms(clauses) local skips_multiple_eval_protection_3f = ((vals_count == 1) and double_eval_safe_3f(val)) if skips_multiple_eval_protection_3f then return case_condition(list(val), clauses, match_3f, _G["table?"](init_val)) else local vals = nil do local tbl_17_ = list() local i_18_ = #tbl_17_ for _ = 1, vals_count do local val_19_ = gensym() if (nil ~= val_19_) then i_18_ = (i_18_ + 1) tbl_17_[i_18_] = val_19_ end end vals = tbl_17_ end return list(sym('let', nil, {quoted=true, filename="src/fennel/match.fnl", line=315}), {vals, val}, case_condition(vals, clauses, match_3f, _G["table?"](init_val))) end end utils['fennel-module'].metadata:setall(case_impl, "fnl/arglist", {"match?", "init-val", "..."}, "fnl/docstring", "The shared implementation of case and match.") local function case_2a(val, ...) return case_impl(false, val, ...) end utils['fennel-module'].metadata:setall(case_2a, "fnl/arglist", {"val", "..."}, "fnl/docstring", "Perform pattern matching on val. See reference for details.\n\nSyntax:\n\n(case data-expression\n pattern body\n (where pattern guards*) body\n (where (or pattern patterns*) guards*) body)") local function match_2a(val, ...) return case_impl(true, val, ...) end utils['fennel-module'].metadata:setall(match_2a, "fnl/arglist", {"val", "..."}, "fnl/docstring", "Perform pattern matching on val, automatically unifying on variables in\nlocal scope. See reference for details.\n\nSyntax:\n\n(match data-expression\n pattern body\n (where pattern guards*) body\n (where (or pattern patterns*) guards*) body)") local function case_try_step(how, expr, _else, pattern, body, ...) if ((nil == pattern) and (pattern == body)) then return expr else return setmetatable({filename="src/fennel/match.fnl", line=346, bytestart=15867, setmetatable({filename="src/fennel/match.fnl", line=346, bytestart=15868, sym('fn', nil, {quoted=true, filename="src/fennel/match.fnl", line=346}), setmetatable({_VARARG}, {filename="src/fennel/match.fnl", line=346}), setmetatable({filename="src/fennel/match.fnl", line=347, bytestart=15888, how, _VARARG, pattern, case_try_step(how, body, _else, ...), unpack(_else)}, getmetatable(list()))}, getmetatable(list())), expr}, getmetatable(list())) end end utils['fennel-module'].metadata:setall(case_try_step, "fnl/arglist", {"how", "expr", "else", "pattern", "body", "..."}) local function case_try_impl(how, expr, pattern, body, ...) local clauses = {pattern, body, ...} local last = clauses[#clauses] local catch = nil if _G["sym?"]((("table" == type(last)) and last[1]), "catch") then local _43_ = table.remove(clauses) local _ = _43_[1] local e = {(table.unpack or unpack)(_43_, 2)} catch = e else catch = {sym('__44_', nil, {filename="src/fennel/match.fnl", line=357}), _VARARG} end assert((0 == math.fmod(#clauses, 2)), "expected every pattern to have a body") assert((0 == math.fmod(#catch, 2)), "expected every catch pattern to have a body") return case_try_step(how, expr, catch, unpack(clauses)) end utils['fennel-module'].metadata:setall(case_try_impl, "fnl/arglist", {"how", "expr", "pattern", "body", "..."}) local function case_try_2a(expr, pattern, body, ...) return case_try_impl(sym('case', nil, {quoted=true, filename="src/fennel/match.fnl", line=375}), expr, pattern, body, ...) end utils['fennel-module'].metadata:setall(case_try_2a, "fnl/arglist", {"expr", "pattern", "body", "..."}, "fnl/docstring", "Perform chained pattern matching for a sequence of steps which might fail.\n\nThe values from the initial expression are matched against the first pattern.\nIf they match, the first body is evaluated and its values are matched against\nthe second pattern, etc.\n\nIf there is a (catch pat1 body1 pat2 body2 ...) form at the end, any mismatch\nfrom the steps will be tried against these patterns in sequence as a fallback\njust like a normal match. If there is no catch, the mismatched values will be\nreturned as the value of the entire expression.") local function match_try_2a(expr, pattern, body, ...) return case_try_impl(sym('match', nil, {quoted=true, filename="src/fennel/match.fnl", line=388}), expr, pattern, body, ...) end utils['fennel-module'].metadata:setall(match_try_2a, "fnl/arglist", {"expr", "pattern", "body", "..."}, "fnl/docstring", "Perform chained pattern matching for a sequence of steps which might fail.\n\nThe values from the initial expression are matched against the first pattern.\nIf they match, the first body is evaluated and its values are matched against\nthe second pattern, etc.\n\nIf there is a (catch pat1 body1 pat2 body2 ...) form at the end, any mismatch\nfrom the steps will be tried against these patterns in sequence as a fallback\njust like a normal match. If there is no catch, the mismatched values will be\nreturned as the value of the entire expression.") return {["case-try"] = case_try_2a, ["match-try"] = match_try_2a, case = case_2a, match = match_2a} ]===], env)endreturn mod