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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172import { Effect } from "effect"import { preserveConsumerError, type SyncIteratorRunner } from "../interpreter/iterator.js"import { type AstNode, InterpreterRuntimeError } from "../interpreter/model.js"
// Bun exposes ES2026 Math.sumPrecise before TypeScript's standard library types.declare global { interface Math { sumPrecise(values: Iterable<number>): number }}
export const mathConstants = new Set(["PI", "E", "LN2", "LN10", "LOG2E", "LOG10E", "SQRT2", "SQRT1_2"])
export const mathMethods = new Set([ "random", "max", "min", "abs", "acos", "acosh", "asin", "asinh", "atan", "atan2", "atanh", "floor", "ceil", "round", "trunc", "sign", "sqrt", "cbrt", "pow", "hypot", "cos", "cosh", "sin", "sinh", "tan", "tanh", "log", "log2", "log10", "log1p", "exp", "expm1", "f16round", "fround", "clz32", "imul", "sumPrecise",])
export const invokeMathMethod = (name: string, args: Array<unknown>, node: AstNode): number => { if (!mathMethods.has(name)) throw new InterpreterRuntimeError(`Math.${name} is not available.`, node) if (name === "random") return Math.random() // Validate only the arguments the method consumes; like JS, extras are ignored // (so built-ins work as callbacks receiving (element, index, array)). const num = (index: number): number => { if (index >= args.length) return Number.NaN const arg = args[index] if (typeof arg !== "number") throw new InterpreterRuntimeError(`Math.${name} expects number arguments.`, node) return arg } const nums = () => args.map((arg) => { if (typeof arg !== "number") throw new InterpreterRuntimeError(`Math.${name} expects number arguments.`, node) return arg }) const a = num(0) const b = () => num(1) switch (name) { case "max": return Math.max(...nums()) case "min": return Math.min(...nums()) case "abs": return Math.abs(a) case "acos": return Math.acos(a) case "acosh": return Math.acosh(a) case "asin": return Math.asin(a) case "asinh": return Math.asinh(a) case "atan": return Math.atan(a) case "atan2": return Math.atan2(a, b()) case "atanh": return Math.atanh(a) case "floor": return Math.floor(a) case "ceil": return Math.ceil(a) case "round": return Math.round(a) case "trunc": return Math.trunc(a) case "sign": return Math.sign(a) case "sqrt": return Math.sqrt(a) case "cbrt": return Math.cbrt(a) case "pow": return Math.pow(a, b()) case "hypot": return Math.hypot(...nums()) case "cos": return Math.cos(a) case "cosh": return Math.cosh(a) case "sin": return Math.sin(a) case "sinh": return Math.sinh(a) case "tan": return Math.tan(a) case "tanh": return Math.tanh(a) case "log": return Math.log(a) case "log2": return Math.log2(a) case "log10": return Math.log10(a) case "log1p": return Math.log1p(a) case "exp": return Math.exp(a) case "expm1": return Math.expm1(a) case "f16round": return Math.f16round(a) case "fround": return Math.fround(a) case "clz32": return Math.clz32(a) case "imul": return Math.imul(a, b()) } throw new InterpreterRuntimeError(`Math.${name} is not available.`, node)}
export const invokeMathSumPrecise = <R>( runner: SyncIteratorRunner<R>, source: unknown, node: AstNode,): Effect.Effect<number, unknown, R> => Effect.gen(function* () { const cursor = yield* runner.syncIterator(source, node) if (cursor === undefined) { throw new InterpreterRuntimeError("Math.sumPrecise expects a synchronous iterable.", node).as("TypeError") } const numbers: Array<number> = [] while (true) { const step = yield* cursor.next if (step.done) return Math.sumPrecise(numbers) yield* preserveConsumerError( cursor, Effect.sync(() => { if (typeof step.value !== "number") { throw new InterpreterRuntimeError("Math.sumPrecise expects an iterable of numbers.", node).as("TypeError") } numbers.push(step.value) }), ) } })