418 lines
15 KiB
JavaScript
418 lines
15 KiB
JavaScript
const target = arguments[0];
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const primordials = arguments[1];
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const symbol = primordials.symbol || (() => {
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const repo = {};
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return {
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makeSymbol: (name) => { name },
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getSymbol(name) {
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if (name in repo) return repo[name];
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else return repo[name] = { name };
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},
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getSymbolKey(symbol) {
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if (symbol.name in repo && repo[symbol.name] === symbol) return symbol.name;
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else return undefined;
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},
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getSymbolDescription: ({ name }) => name,
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};
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});
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const number = primordials.number || (() => {
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return {
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parseInt() { throw new Error("parseInt not supported"); },
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parseFloat() { throw new Error("parseFloat not supported"); },
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isNaN: (val) => val !== val,
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NaN: 0 / 0,
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Infinity: 1 / 0,
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};
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});
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const fromCharCode = primordials.string.fromCharCode;
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const fromCodePoint = primordials.string.fromCodePoint;
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const stringBuild = primordials.string.stringBuild;
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const defineProperty = primordials.object.defineProperty;
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const defineField = primordials.object.defineField;
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const getOwnMember = primordials.object.getMember;
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const getOwnSymbolMember = primordials.object.getOwnSymbolMember;
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const getOwnMembers = primordials.object.getOwnMembers;
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const getOwnSymbolMembers = primordials.object.getOwnSymbolMembers;
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const getPrototype = primordials.object.getPrototype;
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const setPrototype = primordials.object.setPrototype;
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const invokeType = primordials.function.invokeType;
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const setConstructable = primordials.function.setConstructable;
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const setCallable = primordials.function.setCallable;
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const invoke = primordials.function.invoke;
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const construct = primordials.function.construct;
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const json = primordials.json;
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const setGlobalPrototype = primordials.setGlobalPrototype;
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const compile = primordials.compile;
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const setIntrinsic = primordials.setIntrinsic;
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const valueKey = symbol.makeSymbol("Primitive.value");
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const undefined = ({}).definitelyDefined;
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target.undefined = undefined;
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const unwrapThis = (self, type, constr, name, arg, defaultVal) => {
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if (arg == null) arg = "this";
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if (typeof self === type) return self;
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if (self instanceof constr && valueKey in self) self = self[valueKey];
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if (typeof self === type) return self;
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if (defaultVal !== undefined) return defaultVal;
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throw new TypeError(name + " requires that '" + arg + "' be a " + constr.name);
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}
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const wrapIndex = (i, len) => {};
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const Symbol = (name = "") => symbol.makeSymbol(name);
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defineField(Symbol, "for", true, false, true, function(name) {
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return symbol.getSymbol(name + "");
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});
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defineField(Symbol, "keyFor", true, false, true, function(value) {
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return symbol.getSymbolKey(unwrapThis(value, "symbol", Symbol, "Symbol.keyFor"));
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});
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defineField(Symbol, "asyncIterator", false, false, false, Symbol("Symbol.asyncIterator"));
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defineField(Symbol, "iterator", false, false, false, Symbol("Symbol.iterator"));
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defineField(Symbol, "match", false, false, false, Symbol("Symbol.match"));
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defineField(Symbol, "matchAll", false, false, false, Symbol("Symbol.matchAll"));
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defineField(Symbol, "replace", false, false, false, Symbol("Symbol.replace"));
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defineField(Symbol, "search", false, false, false, Symbol("Symbol.search"));
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defineField(Symbol, "split", false, false, false, Symbol("Symbol.split"));
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defineField(Symbol, "toStringTag", false, false, false, Symbol("Symbol.toStringTag"));
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defineField(Symbol, "prototype", false, false, false, {});
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defineProperty(Symbol.prototype, "description", false, true, function () {
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return symbol.getSymbolDescription(unwrapThis(this, "symbol", Symbol, "Symbol.prototype.description"));
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}, undefined);
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defineField(Symbol.prototype, "toString", true, false, true, function() {
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return "Symbol(" + unwrapThis(this, "symbol", Symbol, "Symbol.prototype.toString").description + ")";
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});
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defineField(Symbol.prototype, "valueOf", true, false, true, function() {
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return unwrapThis(this, "symbol", Symbol, "Symbol.prototype.valueOf");
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});
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target.Symbol = Symbol;
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const Number = function(value) {
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if (invokeType(arguments) === "call") {
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if (arguments.length === 0) return 0;
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else return +value;
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}
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this[valueKey] = target.Number(value);
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};
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defineField(Number, "isFinite", true, false, true, function(value) {
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value = unwrapThis(value, "number", Number, "Number.isFinite", "value", undefined);
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if (value === undefined || value !== value) return false;
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if (value === Infinity || value === -Infinity) return false;
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return true;
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});
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defineField(Number, "isInteger", true, false, true, function(value) {
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value = unwrapThis(value, "number", Number, "Number.isInteger", "value", undefined);
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if (value === undefined) return false;
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return number.parseInt(value) === value;
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});
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defineField(Number, "isNaN", true, false, true, function(value) {
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return number.isNaN(value);
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});
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defineField(Number, "isSafeInteger", true, false, true, function(value) {
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value = unwrapThis(value, "number", Number, "Number.isSafeInteger", "value", undefined);
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if (value === undefined || number.parseInt(value) !== value) return false;
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return value >= -9007199254740991 && value <= 9007199254740991;
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});
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defineField(Number, "parseFloat", true, false, true, function(value) {
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value = 0 + value;
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return number.parseFloat(value);
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});
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defineField(Number, "parseInt", true, false, true, function(value, radix) {
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value = 0 + value;
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radix = +radix;
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if (number.isNaN(radix)) radix = 10;
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return number.parseInt(value, radix);
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});
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defineField(Number, "EPSILON", false, false, false, 2.220446049250313e-16);
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defineField(Number, "MIN_SAFE_INTEGER", false, false, false, -9007199254740991);
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defineField(Number, "MAX_SAFE_INTEGER", false, false, false, 9007199254740991);
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defineField(Number, "POSITIVE_INFINITY", false, false, false, +number.Infinity);
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defineField(Number, "NEGATIVE_INFINITY", false, false, false, -number.Infinity);
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defineField(Number, "NaN", false, false, false, number.NaN);
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defineField(Number, "MAX_VALUE", false, false, false, 1.7976931348623157e+308);
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defineField(Number, "MIN_VALUE", false, false, false, 5e-324);
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defineField(Number, "prototype", false, false, false, {});
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defineField(Number.prototype, "toString", true, false, true);
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defineField(Number.prototype, "toString", true, false, true, function() {
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return "" + unwrapThis(this, "number", Number, "Number.prototype.toString");
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});
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defineField(Number.prototype, "valueOf", true, false, true, function() {
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return unwrapThis(this, "number", Number, "Number.prototype.toString");
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});
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target.Number = Number;
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target.parseInt = Number.parseInt;
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target.parseFloat = Number.parseFloat;
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target.NaN = Number.NaN;
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target.Infinity = Number.POSITIVE_INFINITY;
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const String = function(value) {
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if (invokeType(arguments) === "call") {
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if (arguments.length === 0) return "";
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else return value + "";
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}
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this[valueKey] = String(value);
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};
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defineField(String, "fromCharCode", true, false, true, function() {
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const res = [];
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res[arguments.length] = 0;
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for (let i = 0; i < arguments.length; i++) {
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res[i] = fromCharCode(+arguments[i]);
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}
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return stringBuild(res);
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});
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defineField(String, "fromCodePoint", true, false, true, function() {
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const res = [];
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res[arguments.length] = 0;
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for (let i = 0; i < arguments.length; i++) {
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res[i] = fromCodePoint(+arguments[i]);
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}
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return stringBuild(res);
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});
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defineField(String, "prototype", false, false, false, {});
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defineField(String.prototype, "at", true, false, true, function(index) {
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throw "Not implemented :/";
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return unwrapThis(this, "string", String, "String.prototype.at")[index];
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});
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defineField(String.prototype, "toString", true, false, true, function() {
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return unwrapThis(this, "string", String, "String.prototype.toString");
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});
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defineField(String.prototype, "valueOf", true, false, true, function() {
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return unwrapThis(this, "string", String, "String.prototype.valueOf");
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});
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target.String = String;
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const Boolean = function(value) {
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if (invokeType(arguments) === "call") {
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if (arguments.length === 0) return false;
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else return !!value;
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}
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this[valueKey] = Boolean(value);
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};
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defineField(Boolean, "prototype", false, false, false, {});
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defineField(Boolean.prototype, "toString", true, false, true, function() {
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return "" + unwrapThis(this, "boolean", Boolean, "Boolean.prototype.toString");
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});
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defineField(Boolean.prototype, "valueOf", true, false, true, function() {
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return unwrapThis(this, "boolean", Boolean, "Boolean.prototype.valueOf");
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});
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target.Boolean = Boolean;
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const Object = function(value) {
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if (typeof value === 'object' && value !== null) return value;
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if (typeof value === 'string') return new String(value);
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if (typeof value === 'number') return new Number(value);
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if (typeof value === 'boolean') return new Boolean(value);
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if (typeof value === 'symbol') {
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const res = {};
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setPrototype(res, Symbol.prototype);
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res[valueKey] = value;
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return res;
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}
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const target = this;
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if (target == null || typeof target !== 'object') target = {};
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this[valueKey] = Object(value);
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};
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defineField(Object, "prototype", false, false, false, setPrototype({}, null));
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defineField(Object, "defineProperty", true, false, true, (obj, key, desc) => {
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if (typeof obj !== "object" || obj === null) {
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print(obj);
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print(typeof obj);
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throw new TypeError("Object.defineProperty called on non-object");
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}
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if (typeof desc !== "object" || desc === null) throw new TypeError("Property description must be an object: " + desc);
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if ("get" in desc || "set" in desc) {
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let get = desc.get, set = desc.set;
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print(typeof get);
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if (get !== undefined && typeof get !== "function") throw new TypeError("Getter must be a function: " + get);
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if (set !== undefined && typeof set !== "function") throw new TypeError("Setter must be a function: " + set);
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if ("value" in desc || "writable" in desc) {
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throw new TypeError("Invalid property descriptor. Cannot both specify accessors and a value or writable attribute");
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}
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if (!defineProperty(obj, key, desc.enumerable, desc.configurable, get, set)) {
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throw new TypeError("Cannot redefine property: " + key);
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}
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}
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else if (!defineField(obj, key, desc.writable, desc.enumerable, desc.configurable, desc.value)) {
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throw new TypeError("Cannot redefine property: " + key);
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}
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return obj;
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});
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defineField(Object.prototype, "toString", true, false, true, function() {
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if (this !== null && this !== undefined && (Symbol.toStringTag in this)) return "[object " + this[Symbol.toStringTag] + "]";
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else if (typeof this === "number" || this instanceof Number) return "[object Number]";
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else if (typeof this === "symbol" || this instanceof Symbol) return "[object Symbol]";
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else if (typeof this === "string" || this instanceof String) return "[object String]";
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else if (typeof this === "boolean" || this instanceof Boolean) return "[object Boolean]";
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else if (typeof this === "function") return "[object Function]";
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else return "[object Object]";
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});
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defineField(Object.prototype, "valueOf", true, false, true, function() {
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return this;
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});
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target.Object = Object;
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const Function = function() {
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const parts = ["return function annonymous("];
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for (let i = 0; i < arguments.length - 1; i++) {
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if (i > 0) parts[parts.length] = ",";
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parts[parts.length] = arguments[i];
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}
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parts[parts.length] = "){\n";
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parts[parts.length] = String(arguments[arguments.length - 1]);
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parts[parts.length] = "\n}";
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const res = compile(stringBuild(parts))();
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return res;
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};
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defineField(Function, "compile", true, false, true, (src = "", options = {}) => {
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if (options.globals == null) options.globals = [];
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if (options.wrap == null) options.wrap = true;
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const parts = [];
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if (options.wrap) parts[parts.length] = "return (function() {\n";
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if (options.globals.length > 0) {
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parts[parts.length] = "var ";
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for (let i = 0; i < options.globals.length; i++) {
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if (i > 0) parts[parts.length] = ",";
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parts[parts.length] = options.globals[i];
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}
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parts[parts.length] = ";((g=arguments[0])=>{";
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for (let i = 0; i < options.globals.length; i++) {
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const name = options.globals[i];
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parts[parts.length] = name + "=g[" + json.stringify(name) + "];";
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}
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parts[parts.length] = "})()\n";
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}
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parts[parts.length] = src;
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if (options.wrap) parts[parts.length] = "\n})(arguments[0])";
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const res = compile(stringBuild(parts));
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return res;
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});
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defineField(Function, "prototype", false, false, false, setPrototype({}, null));
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defineField(Function.prototype, "toString", true, false, true, function() {
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if (this.name !== "") return "function " + this.name + "(...) { ... }";
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else return "function (...) { ... }";
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});
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defineField(Function.prototype, "valueOf", true, false, true, function() {
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return this;
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});
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target.Function = Function;
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// setIntrinsic("spread_obj", target.spread_obj = (target, obj) => {
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// if (obj === null || obj === undefined) return;
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// const members = getOwnMembers(obj, true);
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// const symbols = getOwnSymbolMembers(obj, true);
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// for (let i = 0; i < members.length; i++) {
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// const member = members[i];
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// target[member] = obj[member];
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// }
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// for (let i = 0; i < symbols.length; i++) {
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// const member = symbols[i];
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// target[member] = obj[member];
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// }
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// });
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// setIntrinsic("apply", target.spread_call = (func, self, args) => {
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// return invoke(func, self, args);
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// });
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// setIntrinsic("apply", target.spread_new = (func, args) => {
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// return invoke(func, null, args);
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// });
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const Error = function(msg = "") {
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if (invokeType(arguments) === "call") return new Error(msg);
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this.message = msg + "";
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};
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defineField(Error.prototype, "name", true, false, true, "Error");
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defineField(Error.prototype, "message", true, false, true, "");
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defineField(Error.prototype, "toString", true, false, true, function toString() {
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let res = this.name || "Error";
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const msg = this.message;
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if (msg) res += ": " + msg;
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return res;
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});
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target.Error = Error;
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const SyntaxError = function(msg = "") {
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if (invokeType(arguments) === "call") return new SyntaxError(msg);
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this.message = msg + "";
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};
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defineField(SyntaxError.prototype, "name", true, false, true, "SyntaxError");
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setPrototype(SyntaxError, Error);
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setPrototype(SyntaxError.prototype, Error.prototype);
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target.SyntaxError = SyntaxError;
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setGlobalPrototype("string", String.prototype);
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setGlobalPrototype("number", Number.prototype);
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setGlobalPrototype("boolean", Boolean.prototype);
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setGlobalPrototype("symbol", Symbol.prototype);
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setGlobalPrototype("object", Object.prototype);
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setGlobalPrototype("function", Function.prototype);
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setGlobalPrototype("error", Error.prototype);
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setGlobalPrototype("syntax", SyntaxError.prototype);
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