mirror of
https://github.com/LadybirdBrowser/ladybird.git
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4ced126704
This commit adds the following classes: SymbolObject, SymbolConstructor, SymbolPrototype, and Symbol. This commit does not introduce any new functionality to the Object class, so they cannot be used as property keys in objects.
122 lines
5.3 KiB
C++
122 lines
5.3 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <matthewcolsson@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibJS/Heap/Heap.h>
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#include <LibJS/Interpreter.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Symbol.h>
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#include <LibJS/Runtime/SymbolObject.h>
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#include <LibJS/Runtime/SymbolPrototype.h>
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#include <LibJS/Runtime/Value.h>
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namespace JS {
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HashMap<String, Value> SymbolObject::s_global_symbol_map;
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Value SymbolObject::s_well_known_iterator;
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Value SymbolObject::s_well_known_async_terator;
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Value SymbolObject::s_well_known_match;
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Value SymbolObject::s_well_known_match_all;
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Value SymbolObject::s_well_known_replace;
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Value SymbolObject::s_well_known_search;
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Value SymbolObject::s_well_known_split;
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Value SymbolObject::s_well_known_has_instance;
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Value SymbolObject::s_well_known_is_concat_spreadable;
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Value SymbolObject::s_well_known_unscopables;
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Value SymbolObject::s_well_known_species;
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Value SymbolObject::s_well_known_to_primtive;
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Value SymbolObject::s_well_known_to_string_tag;
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SymbolObject* SymbolObject::create(GlobalObject& global_object, Symbol& primitive_symbol)
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{
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return global_object.heap().allocate<SymbolObject>(primitive_symbol, *global_object.symbol_prototype());
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}
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SymbolObject::SymbolObject(Symbol& symbol, Object& prototype)
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: Object(&prototype)
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, m_symbol(symbol)
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{
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}
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SymbolObject::~SymbolObject()
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{
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}
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Value SymbolObject::get_global(Interpreter& interpreter, String description)
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{
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auto global_symbol = s_global_symbol_map.get(description);
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if (global_symbol.has_value())
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return global_symbol.value();
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auto symbol = js_symbol(interpreter, description, true);
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s_global_symbol_map.set(description, symbol);
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return Value(symbol);
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}
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void SymbolObject::initialize_well_known_symbols(Interpreter& interpreter)
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{
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SymbolObject::s_well_known_iterator = Value(js_symbol(interpreter, "Symbol.iterator", false));
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SymbolObject::s_well_known_async_terator = Value(js_symbol(interpreter, "Symbol.asyncIterator", false));
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SymbolObject::s_well_known_match = Value(js_symbol(interpreter, "Symbol.match", false));
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SymbolObject::s_well_known_match_all = Value(js_symbol(interpreter, "Symbol.matchAll", false));
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SymbolObject::s_well_known_replace = Value(js_symbol(interpreter, "Symbol.replace", false));
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SymbolObject::s_well_known_search = Value(js_symbol(interpreter, "Symbol.search", false));
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SymbolObject::s_well_known_split = Value(js_symbol(interpreter, "Symbol.split", false));
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SymbolObject::s_well_known_has_instance = Value(js_symbol(interpreter, "Symbol.hasInstance", false));
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SymbolObject::s_well_known_is_concat_spreadable = Value(js_symbol(interpreter, "Symbol.isConcatSpreadable", false));
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SymbolObject::s_well_known_unscopables = Value(js_symbol(interpreter, "Symbol.unscopables", false));
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SymbolObject::s_well_known_species = Value(js_symbol(interpreter, "Symbol.species", false));
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SymbolObject::s_well_known_to_primtive = Value(js_symbol(interpreter, "Symbol.toPrimitive", false));
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SymbolObject::s_well_known_to_string_tag = Value(js_symbol(interpreter, "Symbol.toStringTag", false));
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}
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void SymbolObject::gather_symbol_roots(HashTable<Cell*>& roots)
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{
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for (auto& global_symbol : s_global_symbol_map)
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roots.set(&global_symbol.value.as_symbol());
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roots.set(&s_well_known_iterator.as_symbol());
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roots.set(&s_well_known_async_terator.as_symbol());
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roots.set(&s_well_known_match.as_symbol());
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roots.set(&s_well_known_match_all.as_symbol());
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roots.set(&s_well_known_replace.as_symbol());
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roots.set(&s_well_known_search.as_symbol());
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roots.set(&s_well_known_split.as_symbol());
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roots.set(&s_well_known_has_instance.as_symbol());
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roots.set(&s_well_known_is_concat_spreadable.as_symbol());
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roots.set(&s_well_known_unscopables.as_symbol());
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roots.set(&s_well_known_species.as_symbol());
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roots.set(&s_well_known_to_primtive.as_symbol());
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roots.set(&s_well_known_to_string_tag.as_symbol());
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}
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void SymbolObject::visit_children(Cell::Visitor& visitor)
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{
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Object::visit_children(visitor);
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visitor.visit(&m_symbol);
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}
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}
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