/* * Copyright (c) 2020, Matthew Olsson * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include namespace JS { SymbolConstructor::SymbolConstructor() : NativeFunction("Symbol", *interpreter().global_object().function_prototype()) { put("prototype", interpreter().global_object().symbol_prototype(), 0); put("length", Value(0), Attribute::Configurable); put_native_function("for", for_, 1, Attribute::Writable | Attribute::Configurable); put_native_function("keyFor", key_for, 1, Attribute::Writable | Attribute::Configurable); SymbolObject::initialize_well_known_symbols(interpreter()); put("iterator", SymbolObject::well_known_iterator(), 0); put("asyncIterator", SymbolObject::well_known_async_terator(), 0); put("match", SymbolObject::well_known_match(), 0); put("matchAll", SymbolObject::well_known_match_all(), 0); put("replace", SymbolObject::well_known_replace(), 0); put("search", SymbolObject::well_known_search(), 0); put("split", SymbolObject::well_known_split(), 0); put("hasInstance", SymbolObject::well_known_has_instance(), 0); put("isConcatSpreadable", SymbolObject::well_known_is_concat_spreadable(), 0); put("unscopables", SymbolObject::well_known_unscopables(), 0); put("species", SymbolObject::well_known_species(), 0); put("toPrimitive", SymbolObject::well_known_to_primtive(), 0); put("toStringTag", SymbolObject::well_known_to_string_tag(), 0); } SymbolConstructor::~SymbolConstructor() { } Value SymbolConstructor::call(Interpreter& interpreter) { if (!interpreter.argument_count()) return js_symbol(interpreter, "", false); return js_symbol(interpreter, interpreter.argument(0).to_string(interpreter), false); } Value SymbolConstructor::construct(Interpreter& interpreter) { interpreter.throw_exception("Symbol is not a constructor"); return {}; } Value SymbolConstructor::for_(Interpreter& interpreter) { String description; if (!interpreter.argument_count()) { description = "undefined"; } else { description = interpreter.argument(0).to_string(interpreter); } return SymbolObject::get_global(interpreter, description); } Value SymbolConstructor::key_for(Interpreter& interpreter) { auto argument = interpreter.argument(0); if (!argument.is_symbol()) { interpreter.throw_exception(String::format("%s is not a symbol", argument.to_string_without_side_effects().characters())); return {}; } auto& symbol = argument.as_symbol(); if (symbol.is_global()) return js_string(interpreter, symbol.description()); return js_undefined(); } }