mirror of
https://github.com/RGBCube/serenity
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4d22a142f7
This commits makes effort towards tolerating some of javascript's quirks when it comes to its type system, note that the interpreter's way of handling type coercion is still not mature at all, for example, we still have to implement NaN instead of just crashing when trying to parse a string and failing.
77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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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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#pragma once
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#include <AK/HashMap.h>
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#include <AK/String.h>
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#include <LibJS/Cell.h>
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#include <LibJS/Forward.h>
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#include <LibJS/PrimitiveString.h>
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#include <LibJS/Value.h>
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namespace JS {
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class Object : public Cell {
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public:
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Object();
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virtual ~Object();
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Value get(String property_name) const;
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void put(String property_name, Value);
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void put_native_function(String property_name, AK::Function<Value(Object*, Vector<Value>)>);
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void put_native_property(String property_name, AK::Function<Value(Object*)> getter, AK::Function<void(Object*, Value)> setter);
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virtual bool is_function() const { return false; }
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virtual bool is_native_function() const { return false; }
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virtual bool is_string_object() const { return false; }
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virtual bool is_native_property() const { return false; }
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virtual const char* class_name() const override { return "Object"; }
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virtual void visit_children(Cell::Visitor&) override;
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Object* prototype() { return m_prototype; }
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const Object* prototype() const { return m_prototype; }
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void set_prototype(Object* prototype) { m_prototype = prototype; }
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bool has_own_property(const String& property_name) const;
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enum class PreferredType {
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Default,
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String,
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Number,
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};
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virtual Value value_of() const { return Value(const_cast<Object*>(this)); }
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virtual Value to_primitive(PreferredType preferred_type = PreferredType::Default) const;
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virtual Value to_string() const;
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private:
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HashMap<String, Value> m_properties;
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Object* m_prototype { nullptr };
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};
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}
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