1 files changed, 131 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp b/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp
new file mode 100644
index 000000000..0d59afccc
--- /dev/null
+++ b/Source/JavaScriptCore/builtins/BuiltinExecutables.cpp
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+
+
+#include "config.h"
+#include "BuiltinExecutables.h"
+
+#include "BuiltinNames.h"
+#include "Executable.h"
+#include "JSCInlines.h"
+#include "Parser.h"
+#include <wtf/NeverDestroyed.h>
+
+namespace JSC {
+
+static UnlinkedFunctionExecutable* createExecutableInternal(VM&, const SourceCode&, const Identifier&, ConstructorKind, ConstructAbility);
+
+BuiltinExecutables::BuiltinExecutables(VM& vm)
+    : m_vm(vm)
+#define INITIALIZE_BUILTIN_SOURCE_MEMBERS(name, functionName, length) , m_##name##Source(makeSource(StringImpl::createFromLiteral(s_##name, length)))
+    JSC_FOREACH_BUILTIN_CODE(INITIALIZE_BUILTIN_SOURCE_MEMBERS)
+#undef EXPOSE_BUILTIN_STRINGS
+{
+}
+
+UnlinkedFunctionExecutable* BuiltinExecutables::createDefaultConstructor(ConstructorKind constructorKind, const Identifier& name)
+{
+    static NeverDestroyed<const String> baseConstructorCode(ASCIILiteral("(function () { })"));
+    static NeverDestroyed<const String> derivedConstructorCode(ASCIILiteral("(function () { super(...arguments); })"));
+
+    switch (constructorKind) {
+    case ConstructorKind::None:
+        break;
+    case ConstructorKind::Base:
+        return createExecutableInternal(m_vm, makeSource(baseConstructorCode), name, constructorKind, ConstructAbility::CanConstruct);
+    case ConstructorKind::Derived:
+        return createExecutableInternal(m_vm, makeSource(derivedConstructorCode), name, constructorKind, ConstructAbility::CanConstruct);
+    }
+    ASSERT_NOT_REACHED();
+    return nullptr;
+}
+
+UnlinkedFunctionExecutable* BuiltinExecutables::createBuiltinExecutable(const SourceCode& code, const Identifier& name, ConstructAbility constructAbility)
+{
+    return createExecutableInternal(m_vm, code, name, ConstructorKind::None, constructAbility);
+}
+
+UnlinkedFunctionExecutable* createBuiltinExecutable(VM& vm, const SourceCode& code, const Identifier& name, ConstructAbility constructAbility)
+{
+    return createExecutableInternal(vm, code, name, ConstructorKind::None, constructAbility);
+}
+
+UnlinkedFunctionExecutable* createExecutableInternal(VM& vm, const SourceCode& source, const Identifier& name, ConstructorKind constructorKind, ConstructAbility constructAbility)
+{
+    JSTextPosition positionBeforeLastNewline;
+    ParserError error;
+    bool isParsingDefaultConstructor = constructorKind != ConstructorKind::None;
+    JSParserBuiltinMode builtinMode = isParsingDefaultConstructor ? JSParserBuiltinMode::NotBuiltin : JSParserBuiltinMode::Builtin;
+    UnlinkedFunctionKind kind = isParsingDefaultConstructor ? UnlinkedNormalFunction : UnlinkedBuiltinFunction;
+    RefPtr<SourceProvider> sourceOverride = isParsingDefaultConstructor ? source.provider() : nullptr;
+    std::unique_ptr<ProgramNode> program = parse<ProgramNode>(
+        &vm, source, Identifier(), builtinMode,
+        JSParserStrictMode::NotStrict, SourceParseMode::ProgramMode, SuperBinding::NotNeeded, error,
+        &positionBeforeLastNewline, constructorKind);
+
+    if (!program) {
+        dataLog("Fatal error compiling builtin function '", name.string(), "': ", error.message());
+        CRASH();
+    }
+
+    StatementNode* exprStatement = program->singleStatement();
+    RELEASE_ASSERT(exprStatement);
+    RELEASE_ASSERT(exprStatement->isExprStatement());
+    ExpressionNode* funcExpr = static_cast<ExprStatementNode*>(exprStatement)->expr();
+    RELEASE_ASSERT(funcExpr);
+    RELEASE_ASSERT(funcExpr->isFuncExprNode());
+    FunctionMetadataNode* metadata = static_cast<FuncExprNode*>(funcExpr)->metadata();
+    RELEASE_ASSERT(!program->hasCapturedVariables());
+    
+    metadata->setEndPosition(positionBeforeLastNewline);
+    RELEASE_ASSERT(metadata);
+    RELEASE_ASSERT(metadata->ident().isNull());
+    
+    // This function assumes an input string that would result in a single anonymous function expression.
+    metadata->setEndPosition(positionBeforeLastNewline);
+    RELEASE_ASSERT(metadata);
+    metadata->overrideName(name);
+    VariableEnvironment dummyTDZVariables;
+    UnlinkedFunctionExecutable* functionExecutable = UnlinkedFunctionExecutable::create(&vm, source, metadata, kind, constructAbility, dummyTDZVariables, DerivedContextType::None, WTFMove(sourceOverride));
+    functionExecutable->setNameValue(vm, jsString(&vm, name.string()));
+    return functionExecutable;
+}
+
+void BuiltinExecutables::finalize(Handle<Unknown>, void* context)
+{
+    static_cast<Weak<UnlinkedFunctionExecutable>*>(context)->clear();
+}
+
+#define DEFINE_BUILTIN_EXECUTABLES(name, functionName, length) \
+UnlinkedFunctionExecutable* BuiltinExecutables::name##Executable() \
+{\
+    if (!m_##name##Executable)\
+        m_##name##Executable = Weak<UnlinkedFunctionExecutable>(createBuiltinExecutable(m_##name##Source, m_vm.propertyNames->builtinNames().functionName##PublicName(), s_##name##ConstructAbility), this, &m_##name##Executable);\
+    return m_##name##Executable.get();\
+}
+JSC_FOREACH_BUILTIN_CODE(DEFINE_BUILTIN_EXECUTABLES)
+#undef EXPOSE_BUILTIN_SOURCES
+
+}