mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-02-17 02:18:14 +00:00
100 lines
2.7 KiB
C++
100 lines
2.7 KiB
C++
/*
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* Copyright (C) 2003-2019 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "config.h"
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#include "Identifier.h"
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#include "IdentifierInlines.h"
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#include "NumericStrings.h"
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#include <wtf/Assertions.h>
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namespace JSC {
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Ref<StringImpl> Identifier::add(VM& vm, const char* c)
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{
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ASSERT(c);
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ASSERT(c[0]);
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if (!c[1])
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return vm.smallStrings.singleCharacterStringRep(c[0]);
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return *AtomStringImpl::add(c);
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}
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Ref<StringImpl> Identifier::add8(VM& vm, const UChar* s, int length)
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{
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if (length == 1) {
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UChar c = s[0];
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ASSERT(isLatin1(c));
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if (canUseSingleCharacterString(c))
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return vm.smallStrings.singleCharacterStringRep(c);
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}
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if (!length)
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return *StringImpl::empty();
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return *AtomStringImpl::add(s, length);
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}
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Identifier Identifier::from(VM& vm, unsigned value)
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{
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return Identifier(vm, vm.numericStrings.add(value));
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}
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Identifier Identifier::from(VM& vm, int value)
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{
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return Identifier(vm, vm.numericStrings.add(value));
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}
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Identifier Identifier::from(VM& vm, double value)
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{
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return Identifier(vm, vm.numericStrings.add(value));
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}
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void Identifier::dump(PrintStream& out) const
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{
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if (impl()) {
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if (impl()->isSymbol()) {
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auto* symbol = static_cast<SymbolImpl*>(impl());
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if (symbol->isPrivate())
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out.print("PrivateSymbol.");
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}
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out.print(impl());
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} else
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out.print("<null identifier>");
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}
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#ifndef NDEBUG
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void Identifier::checkCurrentAtomStringTable(VM& vm)
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{
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// Check the identifier table accessible through the threadspecific matches the
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// vm's identifier table.
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ASSERT_UNUSED(vm, vm.atomStringTable() == Thread::current().atomStringTable());
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}
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#else
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// These only exists so that our exports are the same for debug and release builds.
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// This would be an RELEASE_ASSERT_NOT_REACHED(), but we're in NDEBUG only code here!
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NO_RETURN_DUE_TO_CRASH void Identifier::checkCurrentAtomStringTable(VM&) { CRASH(); }
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#endif
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} // namespace JSC
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