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/*
* Copyright (C) 2014-2019 Apple Inc. 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 APPLE INC. ``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 APPLE INC. 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.
*/
#pragma once
#include "CallFrame.h"
#include "Identifier.h"
#include "Symbol.h"
#include "VM.h"
namespace JSC {
inline Identifier::Identifier(VM& vm, std::span<const LChar> string)
: m_string(add(vm, string))
{
ASSERT(m_string.impl()->isAtom());
}
inline Identifier::Identifier(VM& vm, std::span<const char16_t> string)
: m_string(add(vm, string))
{
ASSERT(m_string.impl()->isAtom());
}
ALWAYS_INLINE Identifier::Identifier(VM& vm, ASCIILiteral literal)
: m_string(add(vm, literal))
{
ASSERT(m_string.impl()->isAtom());
}
inline Identifier::Identifier(VM& vm, AtomStringImpl* string)
: m_string(string)
{
#ifndef NDEBUG
checkCurrentAtomStringTable(vm);
if (string)
ASSERT_WITH_MESSAGE(!string->length() || string->isSymbol() || AtomStringImpl::isInAtomStringTable(string), "The atomic string comes from an other thread!");
#else
UNUSED_PARAM(vm);
#endif
}
inline Identifier::Identifier(VM& vm, const AtomString& string)
: m_string(string)
{
#ifndef NDEBUG
checkCurrentAtomStringTable(vm);
if (!string.isNull())
ASSERT_WITH_MESSAGE(!string.length() || string.impl()->isSymbol() || AtomStringImpl::isInAtomStringTable(string.impl()), "The atomic string comes from an other thread!");
#else
UNUSED_PARAM(vm);
#endif
}
inline Identifier::Identifier(VM& vm, const String& string)
: m_string(add(vm, string.impl()))
{
ASSERT(m_string.impl()->isAtom());
}
inline Identifier::Identifier(VM& vm, StringImpl* rep)
: m_string(add(vm, rep))
{
ASSERT(m_string.impl()->isAtom());
}
inline Ref<AtomStringImpl> Identifier::add(VM& vm, ASCIILiteral literal)
{
if (literal.length() == 1)
return vm.smallStrings.singleCharacterStringRep(literal.characterAt(0));
return AtomStringImpl::add(literal);
}
template <typename T>
Ref<AtomStringImpl> Identifier::add(VM& vm, std::span<const T> string)
{
if (string.size() == 1) {
T c = string.front();
if (canUseSingleCharacterString(c))
return vm.smallStrings.singleCharacterStringRep(c);
}
if (string.empty())
return *static_cast<AtomStringImpl*>(StringImpl::empty());
return *AtomStringImpl::add(string);
}
inline Ref<AtomStringImpl> Identifier::add(VM& vm, StringImpl* r)
{
#ifndef NDEBUG
checkCurrentAtomStringTable(vm);
#endif
return *AtomStringImpl::addWithStringTableProvider(vm, r);
}
inline Identifier Identifier::fromUid(VM& vm, UniquedStringImpl* uid)
{
if (!uid || !uid->isSymbol())
return Identifier(vm, uid);
return static_cast<SymbolImpl&>(*uid);
}
inline Identifier Identifier::fromUid(const PrivateName& name)
{
return name.uid();
}
inline Identifier Identifier::fromUid(SymbolImpl& symbol)
{
return symbol;
}
ALWAYS_INLINE Identifier Identifier::fromString(VM& vm, ASCIILiteral s)
{
return Identifier(vm, s);
}
inline Identifier Identifier::fromString(VM& vm, std::span<const LChar> s)
{
return Identifier(vm, s);
}
inline Identifier Identifier::fromString(VM& vm, std::span<const char16_t> s)
{
return Identifier(vm, s);
}
inline Identifier Identifier::fromString(VM& vm, const String& string)
{
return Identifier(vm, string.impl());
}
inline Identifier Identifier::fromString(VM& vm, AtomStringImpl* atomStringImpl)
{
return Identifier(vm, atomStringImpl);
}
inline Identifier Identifier::fromString(VM& vm, Ref<AtomStringImpl>&& atomStringImpl)
{
return Identifier(vm, WTFMove(atomStringImpl));
}
inline Identifier Identifier::fromString(VM& vm, const AtomString& atomString)
{
return Identifier(vm, atomString);
}
inline Identifier Identifier::fromString(VM& vm, SymbolImpl* symbolImpl)
{
return Identifier(vm, symbolImpl);
}
inline JSValue identifierToJSValue(VM& vm, const Identifier& identifier)
{
if (identifier.isSymbol())
return Symbol::create(vm, static_cast<SymbolImpl&>(*identifier.impl()));
return jsString(vm, identifier.string());
}
inline JSValue identifierToSafePublicJSValue(VM& vm, const Identifier& identifier)
{
if (identifier.isSymbol() && !identifier.isPrivateName())
return Symbol::create(vm, static_cast<SymbolImpl&>(*identifier.impl()));
return jsString(vm, identifier.string());
}
} // namespace JSC
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