{"entries":[{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T09:37:52.000000+01:00"},"committer":{"email":"did:plc:wshs7t2adsemcrrd4snkeqli","name":"Tangled","when":"2026-03-22T08:42:38.000000Z"},"hash":"4b4f554ac3dd278a6637adb6fe6d4f90eeeeabef","message":"Implement JS parser: AST and expression/statement parsing\n\nAdd a recursive-descent JavaScript parser with Pratt expression parsing\nfor ECMAScript 2024. Transforms the token stream from the lexer into an\nAbstract Syntax Tree.\n\nAST node types cover:\n- All expression types (literals, binary, unary, assignment, member access,\n call, new, arrow functions, template literals, spread, yield, await)\n- All statement types (if, for/for-in/for-of, while, do-while, switch,\n try/catch/finally, return, throw, break, continue, labeled, with)\n- Variable declarations (var/let/const) with destructuring patterns\n- Function declarations (sync, async, generators)\n- Class declarations (constructor, methods, getters/setters, static)\n- Import/export declarations (default, named, namespace, re-export)\n\nFeatures:\n- Operator precedence via Pratt parsing with binding power table\n- Automatic Semicolon Insertion (ASI) using lexer newline tracking\n- Arrow function detection with expression-to-pattern reinterpretation\n- Destructuring patterns (array, object, default values, rest)\n- for-in/for-of disambiguation with allow_in flag\n- 73 unit tests covering all grammar productions and error cases\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"62b545f79a6dc463b500ac6080e89fcf9c87c984"},"mode":"0100644","name":"ast.rs","size":12022},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T14:12:32.000000+01:00"},"committer":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T14:12:32.000000+01:00"},"hash":"67c88a3a7c1b98fdd7f086c283911b1159f03165","message":"Fix JSON string parser corrupting multi-byte UTF-8 characters\n\nThe JSON lexer iterated over raw bytes and cast each byte directly to\nchar, which corrupts multi-byte UTF-8 sequences (e.g. \"café\" would\nbecome \"cafÃ©\"). Now properly detects UTF-8 lead bytes and reads the\nfull multi-byte sequence before pushing to the output string.\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"a4cb97aff0af96940e953ae977b2138b3feefd4f"},"mode":"0100644","name":"builtins.rs","size":136861},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T12:44:54.000000+01:00"},"committer":{"email":"did:plc:wshs7t2adsemcrrd4snkeqli","name":"Tangled","when":"2026-03-22T11:50:43.000000Z"},"hash":"ec5ec682a916a7fb5f8408869bea4aac0b83775e","message":"Implement JS closures, const immutability, and method-call this binding\n\nAdd upvalue-based closure system using GC-allocated cells:\n- New bytecode ops: NewCell, CellLoad, CellStore, LoadUpvalue, StoreUpvalue\n- UpvalueDef metadata on Function for closure capture resolution\n- HeapObject::Cell variant for mutable captured variable storage\n- Free variable analysis with transitive capture support\n- Captured parameters are boxed into cells at function entry\n- const declarations enforce immutability at compile time\n- Method calls (obj.method()) set this before invocation\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"7c42abf22e0bda70f5e89325736dd5d8a6673d4b"},"mode":"0100644","name":"bytecode.rs","size":37035},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T13:19:13.000000+01:00"},"committer":{"email":"did:plc:wshs7t2adsemcrrd4snkeqli","name":"Tangled","when":"2026-03-22T12:24:19.000000Z"},"hash":"32534704eeb457343aed7255f2b85c627a19775a","message":"Implement JS built-in Object, Array, Function, and Error\n\nAdd comprehensive built-in object support for the JavaScript engine:\n\n## Infrastructure\n- NativeContext passed to native callbacks (GC access + this binding)\n- Object.prototype and Array.prototype stored in VM\n- CreateObject/CreateArray set prototype chains\n- Array literals now set length property\n\n## Object built-ins\n- Constructor, Object.keys/values/entries/assign/create/is\n- Object.getPrototypeOf/getOwnPropertyNames/getOwnPropertyDescriptor\n- Object.defineProperty/freeze/seal/isFrozen/isSealed\n- Object.fromEntries/hasOwn\n- Object.prototype: hasOwnProperty/toString/valueOf\n\n## Array built-ins\n- Native: push/pop/shift/unshift, indexOf/lastIndexOf/includes\n- Native: join/slice/concat/reverse/splice/fill/at/toString\n- Static: Array.isArray/from/of\n- JS preamble: map/filter/reduce/reduceRight/forEach\n- JS preamble: find/findIndex/some/every/sort/flat/flatMap\n\n## Error built-ins\n- Error/TypeError/ReferenceError/SyntaxError/RangeError/URIError/EvalError\n- Prototype chain with name/message, Error.prototype.toString\n\n## Global functions\n- parseInt/parseFloat/isNaN/isFinite\n\n37 new tests covering all built-in categories.\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"040ba462a70aba5ca4c74b5e8d2cc990c46639a3"},"mode":"0100644","name":"compiler.rs","size":106832},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T10:45:59.000000+01:00"},"committer":{"email":"did:plc:wshs7t2adsemcrrd4snkeqli","name":"Tangled","when":"2026-03-22T09:48:52.000000Z"},"hash":"38791b59cf6e8cdb061343c3c3e92a15bf85981a","message":"Implement tri-color mark-and-sweep garbage collector for JS engine\n\nAdd a generic GC module (gc.rs) with tri-color marking (white/gray/black),\nheap allocation via Vec with free-list reuse, and stop-the-world collection\ntriggered when live object count exceeds a configurable threshold.\n\nRefactor VM to use GcRef handles for heap objects (plain objects and\nfunctions) instead of owned values. This gives correct JS reference\nsemantics — object assignment shares identity rather than deep-cloning.\nThe GC traces through object properties and prototype chains to find all\nreachable objects, and correctly collects cycles.\n\nKey changes:\n- gc.rs: Generic Gc with alloc/get/collect, HeapSlot with\n color metadata, mark phase with gray stack, sweep with free-list\n- vm.rs: Value::Object(GcRef) and Value::Function(GcRef) replace owned\n data; VM allocates through self.gc and triggers collection after\n allocations; root collection scans registers and globals\n- lib.rs: evaluate() uses to_js_string(&gc) for GC-aware string conversion\n\n8 new GC tests (alloc, collect, transitive reachability, cycle collection,\nfree-list reuse, threshold, stress) plus 3 integration tests. All 226\nexisting tests continue to pass.\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"25b2bb0befcc0694cde5bddaa48b48be6201b3e4"},"mode":"0100644","name":"gc.rs","size":11688},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T09:23:38.000000+01:00"},"committer":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T09:23:38.000000+01:00"},"hash":"1cc5132152cba46cea778015f36cc8a3295cfd3f","message":"Merge js-lexer: fix line continuation escape in string and template literals\n","tree":"de2b8f821946f6d357f5b5cb79469a744e9d55b8"},"mode":"0100644","name":"lexer.rs","size":65375},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T13:19:13.000000+01:00"},"committer":{"email":"did:plc:wshs7t2adsemcrrd4snkeqli","name":"Tangled","when":"2026-03-22T12:24:19.000000Z"},"hash":"32534704eeb457343aed7255f2b85c627a19775a","message":"Implement JS built-in Object, Array, Function, and Error\n\nAdd comprehensive built-in object support for the JavaScript engine:\n\n## Infrastructure\n- NativeContext passed to native callbacks (GC access + this binding)\n- Object.prototype and Array.prototype stored in VM\n- CreateObject/CreateArray set prototype chains\n- Array literals now set length property\n\n## Object built-ins\n- Constructor, Object.keys/values/entries/assign/create/is\n- Object.getPrototypeOf/getOwnPropertyNames/getOwnPropertyDescriptor\n- Object.defineProperty/freeze/seal/isFrozen/isSealed\n- Object.fromEntries/hasOwn\n- Object.prototype: hasOwnProperty/toString/valueOf\n\n## Array built-ins\n- Native: push/pop/shift/unshift, indexOf/lastIndexOf/includes\n- Native: join/slice/concat/reverse/splice/fill/at/toString\n- Static: Array.isArray/from/of\n- JS preamble: map/filter/reduce/reduceRight/forEach\n- JS preamble: find/findIndex/some/every/sort/flat/flatMap\n\n## Error built-ins\n- Error/TypeError/ReferenceError/SyntaxError/RangeError/URIError/EvalError\n- Prototype chain with name/message, Error.prototype.toString\n\n## Global functions\n- parseInt/parseFloat/isNaN/isFinite\n\n37 new tests covering all built-in categories.\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"040ba462a70aba5ca4c74b5e8d2cc990c46639a3"},"mode":"0100644","name":"lib.rs","size":3004},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T09:42:25.000000+01:00"},"committer":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T09:43:01.000000+01:00"},"hash":"f8089da959472631ddcfd4304048840095a4e68c","message":"Fix export default anonymous function/class parsing\n\nexport default function() {} and export default class {} are valid\nJavaScript but the parser incorrectly required a name. Check whether\nthe function/class has a name and route to expression parsing when\nanonymous.\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"e4be849304ec3334c7c2765038b0a7d2d4a4ba6d"},"mode":"0100644","name":"parser.rs","size":125659},{"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T14:07:52.000000+01:00"},"committer":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T14:07:52.000000+01:00"},"hash":"6fba1c0ca7113a96c44001a6abb51877a63791d4","message":"Implement JS built-in Math, Date, and JSON\n\n## Math\n- Not a constructor (static methods only)\n- Constants: E, LN2, LN10, LOG2E, LOG10E, PI, SQRT1_2, SQRT2\n- Methods: abs, ceil, floor, round, trunc, max, min, pow, sqrt, cbrt,\n hypot, sin, cos, tan, asin, acos, atan, atan2, exp, log, log2, log10,\n expm1, log1p, sign, clz32, fround, random, imul\n\n## Date\n- Constructor: Date(), Date(ms), Date(string), Date(y, m, d, h, min, s, ms)\n- Static: Date.now(), Date.parse(string), Date.UTC(...)\n- Getters: getFullYear, getMonth, getDate, getDay, getHours, getMinutes,\n getSeconds, getMilliseconds, getTime, getTimezoneOffset + UTC variants\n- Setters: setFullYear, setMonth, setDate, setHours, setMinutes,\n setSeconds, setMilliseconds, setTime\n- Formatting: toString, toISOString, toUTCString, toLocaleDateString, toJSON\n- valueOf returns milliseconds since epoch\n\n## JSON\n- JSON.parse(text): full JSON tokenizer and recursive descent parser\n supporting objects, arrays, strings, numbers, booleans, null, and\n escape sequences including \\uXXXX unicode escapes\n- JSON.stringify(value, replacer?, space?): recursive serialization with\n pretty-print support, circular reference detection (throws TypeError),\n handles NaN/Infinity as null, Date toJSON support\n\n## VM Changes\n- Added date_prototype field to Vm\n- Added RuntimeError::syntax_error constructor\n- Made js_number_to_string pub(crate) for JSON.stringify\n\n41 new tests (369 total JS tests, all passing)\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"96ccd9740a4283cdbb7f04bccbd89d18266d4606"},"mode":"0100644","name":"vm.rs","size":151579}],"lastCommit":{"author":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T14:12:32.000000+01:00"},"committer":{"email":"hello@pierrelf.com","name":"Pierre Le Fevre","when":"2026-03-22T14:12:32.000000+01:00"},"hash":"67c88a3a7c1b98fdd7f086c283911b1159f03165","message":"Fix JSON string parser corrupting multi-byte UTF-8 characters\n\nThe JSON lexer iterated over raw bytes and cast each byte directly to\nchar, which corrupts multi-byte UTF-8 sequences (e.g. \"café\" would\nbecome \"cafÃ©\"). Now properly detects UTF-8 lead bytes and reads the\nfull multi-byte sequence before pushing to the output string.\n\nCo-Authored-By: Claude Opus 4.6 (1M context) \n","tree":"a4cb97aff0af96940e953ae977b2138b3feefd4f"}}