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https://github.com/RGBCube/serenity
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Libraries: Move to Userland/Libraries/
This commit is contained in:
Andreas Kling
parent
dc28c07fa5
commit
13d7c09125
1857 changed files with 266 additions and 274 deletions
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@ -1,357 +0,0 @@
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/*
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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/Assertions.h>
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#include <AK/Format.h>
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#include <AK/Forward.h>
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#include <AK/String.h>
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#include <AK/Types.h>
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#include <LibJS/Forward.h>
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#include <math.h>
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// 2 ** 53 - 1
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static constexpr double MAX_ARRAY_LIKE_INDEX = 9007199254740991.0;
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// 2 ** 32 - 1
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static constexpr double MAX_U32 = 4294967295.0;
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namespace JS {
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class Value {
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public:
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enum class Type {
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Empty,
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Undefined,
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Null,
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Number,
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String,
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Object,
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Boolean,
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Symbol,
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Accessor,
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BigInt,
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NativeProperty,
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};
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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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bool is_empty() const { return m_type == Type::Empty; }
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bool is_undefined() const { return m_type == Type::Undefined; }
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bool is_null() const { return m_type == Type::Null; }
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bool is_number() const { return m_type == Type::Number; }
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bool is_string() const { return m_type == Type::String; }
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bool is_object() const { return m_type == Type::Object; }
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bool is_boolean() const { return m_type == Type::Boolean; }
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bool is_symbol() const { return m_type == Type::Symbol; }
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bool is_accessor() const { return m_type == Type::Accessor; };
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bool is_bigint() const { return m_type == Type::BigInt; };
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bool is_native_property() const { return m_type == Type::NativeProperty; }
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bool is_nullish() const { return is_null() || is_undefined(); }
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bool is_cell() const { return is_string() || is_accessor() || is_object() || is_bigint() || is_symbol() || is_native_property(); }
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bool is_array() const;
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bool is_function() const;
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bool is_regexp(GlobalObject& global_object) const;
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bool is_nan() const { return is_number() && __builtin_isnan(as_double()); }
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bool is_infinity() const { return is_number() && __builtin_isinf(as_double()); }
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bool is_positive_infinity() const { return is_number() && __builtin_isinf_sign(as_double()) > 0; }
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bool is_negative_infinity() const { return is_number() && __builtin_isinf_sign(as_double()) < 0; }
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bool is_positive_zero() const { return is_number() && 1.0 / as_double() == INFINITY; }
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bool is_negative_zero() const { return is_number() && 1.0 / as_double() == -INFINITY; }
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bool is_integer() const { return is_finite_number() && (i32)as_double() == as_double(); }
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bool is_finite_number() const
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{
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if (!is_number())
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return false;
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auto number = as_double();
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return !__builtin_isnan(number) && !__builtin_isinf(number);
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}
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Value()
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: m_type(Type::Empty)
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{
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}
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explicit Value(bool value)
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: m_type(Type::Boolean)
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{
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m_value.as_bool = value;
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}
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explicit Value(double value)
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: m_type(Type::Number)
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{
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m_value.as_double = value;
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}
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explicit Value(unsigned value)
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: m_type(Type::Number)
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{
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m_value.as_double = static_cast<double>(value);
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}
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explicit Value(i32 value)
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: m_type(Type::Number)
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{
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m_value.as_double = value;
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}
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Value(const Object* object)
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: m_type(object ? Type::Object : Type::Null)
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{
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m_value.as_object = const_cast<Object*>(object);
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}
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Value(const PrimitiveString* string)
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: m_type(Type::String)
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{
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m_value.as_string = const_cast<PrimitiveString*>(string);
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}
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Value(const Symbol* symbol)
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: m_type(Type::Symbol)
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{
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m_value.as_symbol = const_cast<Symbol*>(symbol);
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}
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Value(const Accessor* accessor)
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: m_type(Type::Accessor)
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{
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m_value.as_accessor = const_cast<Accessor*>(accessor);
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}
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Value(const BigInt* bigint)
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: m_type(Type::BigInt)
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{
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m_value.as_bigint = const_cast<BigInt*>(bigint);
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}
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Value(const NativeProperty* native_property)
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: m_type(Type::NativeProperty)
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{
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m_value.as_native_property = const_cast<NativeProperty*>(native_property);
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}
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explicit Value(Type type)
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: m_type(type)
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{
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}
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Type type() const { return m_type; }
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double as_double() const
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{
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ASSERT(type() == Type::Number);
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return m_value.as_double;
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}
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bool as_bool() const
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{
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ASSERT(type() == Type::Boolean);
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return m_value.as_bool;
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}
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Object& as_object()
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{
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ASSERT(type() == Type::Object);
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return *m_value.as_object;
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}
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const Object& as_object() const
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{
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ASSERT(type() == Type::Object);
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return *m_value.as_object;
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}
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PrimitiveString& as_string()
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{
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ASSERT(is_string());
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return *m_value.as_string;
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}
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const PrimitiveString& as_string() const
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{
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ASSERT(is_string());
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return *m_value.as_string;
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}
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Symbol& as_symbol()
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{
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ASSERT(is_symbol());
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return *m_value.as_symbol;
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}
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const Symbol& as_symbol() const
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{
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ASSERT(is_symbol());
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return *m_value.as_symbol;
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}
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Cell* as_cell()
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{
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ASSERT(is_cell());
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return m_value.as_cell;
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}
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Accessor& as_accessor()
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{
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ASSERT(is_accessor());
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return *m_value.as_accessor;
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}
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BigInt& as_bigint()
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{
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ASSERT(is_bigint());
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return *m_value.as_bigint;
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}
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NativeProperty& as_native_property()
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{
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ASSERT(is_native_property());
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return *m_value.as_native_property;
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}
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Array& as_array();
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Function& as_function();
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i32 as_i32() const;
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u32 as_u32() const;
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size_t as_size_t() const;
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String to_string(GlobalObject&, bool legacy_null_to_empty_string = false) const;
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PrimitiveString* to_primitive_string(GlobalObject&);
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Value to_primitive(PreferredType preferred_type = PreferredType::Default) const;
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Object* to_object(GlobalObject&) const;
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Value to_numeric(GlobalObject&) const;
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Value to_number(GlobalObject&) const;
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BigInt* to_bigint(GlobalObject&) const;
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double to_double(GlobalObject&) const;
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i32 to_i32(GlobalObject&) const;
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u32 to_u32(GlobalObject&) const;
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size_t to_length(GlobalObject&) const;
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size_t to_index(GlobalObject&) const;
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double to_integer_or_infinity(GlobalObject&) const;
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bool to_boolean() const;
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String to_string_without_side_effects() const;
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Value value_or(Value fallback) const
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{
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if (is_empty())
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return fallback;
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return *this;
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}
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private:
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Type m_type { Type::Empty };
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union {
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bool as_bool;
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double as_double;
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PrimitiveString* as_string;
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Symbol* as_symbol;
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Object* as_object;
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Cell* as_cell;
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Accessor* as_accessor;
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BigInt* as_bigint;
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NativeProperty* as_native_property;
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} m_value;
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};
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inline Value js_undefined()
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{
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return Value(Value::Type::Undefined);
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}
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inline Value js_null()
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{
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return Value(Value::Type::Null);
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}
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inline Value js_nan()
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{
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return Value(NAN);
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}
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inline Value js_infinity()
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{
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return Value(INFINITY);
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}
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inline Value js_negative_infinity()
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{
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return Value(-INFINITY);
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}
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Value greater_than(GlobalObject&, Value lhs, Value rhs);
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Value greater_than_equals(GlobalObject&, Value lhs, Value rhs);
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Value less_than(GlobalObject&, Value lhs, Value rhs);
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Value less_than_equals(GlobalObject&, Value lhs, Value rhs);
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Value bitwise_and(GlobalObject&, Value lhs, Value rhs);
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Value bitwise_or(GlobalObject&, Value lhs, Value rhs);
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Value bitwise_xor(GlobalObject&, Value lhs, Value rhs);
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Value bitwise_not(GlobalObject&, Value);
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Value unary_plus(GlobalObject&, Value);
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Value unary_minus(GlobalObject&, Value);
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Value left_shift(GlobalObject&, Value lhs, Value rhs);
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Value right_shift(GlobalObject&, Value lhs, Value rhs);
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Value unsigned_right_shift(GlobalObject&, Value lhs, Value rhs);
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Value add(GlobalObject&, Value lhs, Value rhs);
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Value sub(GlobalObject&, Value lhs, Value rhs);
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Value mul(GlobalObject&, Value lhs, Value rhs);
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Value div(GlobalObject&, Value lhs, Value rhs);
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Value mod(GlobalObject&, Value lhs, Value rhs);
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Value exp(GlobalObject&, Value lhs, Value rhs);
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Value in(GlobalObject&, Value lhs, Value rhs);
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Value instance_of(GlobalObject&, Value lhs, Value rhs);
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Value ordinary_has_instance(GlobalObject&, Value lhs, Value rhs);
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bool abstract_eq(GlobalObject&, Value lhs, Value rhs);
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bool strict_eq(Value lhs, Value rhs);
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bool same_value(Value lhs, Value rhs);
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bool same_value_zero(Value lhs, Value rhs);
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bool same_value_non_numeric(Value lhs, Value rhs);
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TriState abstract_relation(GlobalObject&, bool left_first, Value lhs, Value rhs);
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size_t length_of_array_like(GlobalObject&, const Object&);
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}
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namespace AK {
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template<>
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struct Formatter<JS::Value> : Formatter<StringView> {
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void format(FormatBuilder& builder, const JS::Value& value)
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{
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Formatter<StringView>::format(builder, value.is_empty() ? "<empty>" : value.to_string_without_side_effects());
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}
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};
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}
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