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/*
* Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2012, 2013 Apple Inc. All rights reserved.
* Copyright (C) 2006 Bjoern Graf (bjoern.graf@gmail.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "ArrayPrototype.h"
#include "ButterflyInlines.h"
#include "BytecodeGenerator.h"
#include "Completion.h"
#include "CopiedSpaceInlines.h"
#include "ExceptionHelpers.h"
#include "HeapStatistics.h"
#include "InitializeThreading.h"
#include "Interpreter.h"
#include "JSArray.h"
#include "JSArrayBuffer.h"
#include "JSCInlines.h"
#include "JSFunction.h"
#include "JSLock.h"
#include "JSProxy.h"
#include "JSString.h"
#include "ProfilerDatabase.h"
#include "SamplingTool.h"
#include "StackVisitor.h"
#include "StructureInlines.h"
#include "StructureRareDataInlines.h"
#include "TestRunnerUtils.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <thread>
#include <wtf/CurrentTime.h>
#include <wtf/MainThread.h>
#include <wtf/StringPrintStream.h>
#include <wtf/text/StringBuilder.h>
#if !OS(WINDOWS)
#include <unistd.h>
#endif
#if HAVE(READLINE)
// readline/history.h has a Function typedef which conflicts with the WTF::Function template from WTF/Forward.h
// We #define it to something else to avoid this conflict.
#define Function ReadlineFunction
#include <readline/history.h>
#include <readline/readline.h>
#undef Function
#endif
#if HAVE(SYS_TIME_H)
#include <sys/time.h>
#endif
#if HAVE(SIGNAL_H)
#include <signal.h>
#endif
#if COMPILER(MSVC) && !OS(WINCE)
#include <crtdbg.h>
#include <mmsystem.h>
#include <windows.h>
#endif
#if PLATFORM(IOS) && CPU(ARM_THUMB2)
#include <fenv.h>
#include <arm/arch.h>
#endif
#if PLATFORM(EFL)
#include <Ecore.h>
#endif
using namespace JSC;
using namespace WTF;
namespace {
class Element;
class ElementHandleOwner;
class Masuqerader;
class Root;
class RuntimeArray;
class Element : public JSNonFinalObject {
public:
Element(VM& vm, Structure* structure, Root* root)
: Base(vm, structure)
, m_root(root)
{
}
typedef JSNonFinalObject Base;
static const bool needsDestruction = false;
Root* root() const { return m_root; }
void setRoot(Root* root) { m_root = root; }
static Element* create(VM& vm, JSGlobalObject* globalObject, Root* root)
{
Structure* structure = createStructure(vm, globalObject, jsNull());
Element* element = new (NotNull, allocateCell<Element>(vm.heap, sizeof(Element))) Element(vm, structure, root);
element->finishCreation(vm);
return element;
}
void finishCreation(VM&);
static ElementHandleOwner* handleOwner();
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
DECLARE_INFO;
private:
Root* m_root;
};
class ElementHandleOwner : public WeakHandleOwner {
public:
virtual bool isReachableFromOpaqueRoots(Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)
{
Element* element = jsCast<Element*>(handle.slot()->asCell());
return visitor.containsOpaqueRoot(element->root());
}
};
class Masquerader : public JSNonFinalObject {
public:
Masquerader(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
typedef JSNonFinalObject Base;
static Masquerader* create(VM& vm, JSGlobalObject* globalObject)
{
globalObject->masqueradesAsUndefinedWatchpoint()->fireAll();
Structure* structure = createStructure(vm, globalObject, jsNull());
Masquerader* result = new (NotNull, allocateCell<Masquerader>(vm.heap, sizeof(Masquerader))) Masquerader(vm, structure);
result->finishCreation(vm);
return result;
}
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
DECLARE_INFO;
protected:
static const unsigned StructureFlags = JSC::MasqueradesAsUndefined | Base::StructureFlags;
};
class Root : public JSDestructibleObject {
public:
Root(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
Element* element()
{
return m_element.get();
}
void setElement(Element* element)
{
Weak<Element> newElement(element, Element::handleOwner());
m_element.swap(newElement);
}
static Root* create(VM& vm, JSGlobalObject* globalObject)
{
Structure* structure = createStructure(vm, globalObject, jsNull());
Root* root = new (NotNull, allocateCell<Root>(vm.heap, sizeof(Root))) Root(vm, structure);
root->finishCreation(vm);
return root;
}
typedef JSDestructibleObject Base;
DECLARE_INFO;
static const bool needsDestruction = true;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
static void visitChildren(JSCell* thisObject, SlotVisitor& visitor)
{
Base::visitChildren(thisObject, visitor);
visitor.addOpaqueRoot(thisObject);
}
private:
Weak<Element> m_element;
};
class ImpureGetter : public JSNonFinalObject {
public:
ImpureGetter(VM& vm, Structure* structure)
: Base(vm, structure)
{
}
DECLARE_INFO;
typedef JSNonFinalObject Base;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
static ImpureGetter* create(VM& vm, Structure* structure, JSObject* delegate)
{
ImpureGetter* getter = new (NotNull, allocateCell<ImpureGetter>(vm.heap, sizeof(ImpureGetter))) ImpureGetter(vm, structure);
getter->finishCreation(vm, delegate);
return getter;
}
void finishCreation(VM& vm, JSObject* delegate)
{
Base::finishCreation(vm);
if (delegate)
m_delegate.set(vm, this, delegate);
}
static const unsigned StructureFlags = JSC::HasImpureGetOwnPropertySlot | JSC::OverridesGetOwnPropertySlot | JSC::OverridesVisitChildren | Base::StructureFlags;
static bool getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName name, PropertySlot& slot)
{
ImpureGetter* thisObject = jsCast<ImpureGetter*>(object);
if (thisObject->m_delegate && thisObject->m_delegate->getPropertySlot(exec, name, slot))
return true;
return Base::getOwnPropertySlot(object, exec, name, slot);
}
static void visitChildren(JSCell* cell, SlotVisitor& visitor)
{
Base::visitChildren(cell, visitor);
ImpureGetter* thisObject = jsCast<ImpureGetter*>(cell);
visitor.append(&thisObject->m_delegate);
}
void setDelegate(VM& vm, JSObject* delegate)
{
m_delegate.set(vm, this, delegate);
}
private:
WriteBarrier<JSObject> m_delegate;
};
class RuntimeArray : public JSArray {
public:
typedef JSArray Base;
static RuntimeArray* create(ExecState* exec)
{
VM& vm = exec->vm();
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
Structure* structure = createStructure(vm, globalObject, createPrototype(vm, globalObject));
RuntimeArray* runtimeArray = new (NotNull, allocateCell<RuntimeArray>(*exec->heap())) RuntimeArray(exec, structure);
runtimeArray->finishCreation(exec);
vm.heap.addFinalizer(runtimeArray, destroy);
return runtimeArray;
}
~RuntimeArray() { }
static void destroy(JSCell* cell)
{
static_cast<RuntimeArray*>(cell)->RuntimeArray::~RuntimeArray();
}
static const bool needsDestruction = false;
static bool getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
RuntimeArray* thisObject = jsCast<RuntimeArray*>(object);
if (propertyName == exec->propertyNames().length) {
slot.setCacheableCustom(thisObject, DontDelete | ReadOnly | DontEnum, thisObject->lengthGetter);
return true;
}
unsigned index = propertyName.asIndex();
if (index < thisObject->getLength()) {
ASSERT(index != PropertyName::NotAnIndex);
slot.setValue(thisObject, DontDelete | DontEnum, jsNumber(thisObject->m_vector[index]));
return true;
}
return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
static bool getOwnPropertySlotByIndex(JSObject* object, ExecState* exec, unsigned index, PropertySlot& slot)
{
RuntimeArray* thisObject = jsCast<RuntimeArray*>(object);
if (index < thisObject->getLength()) {
slot.setValue(thisObject, DontDelete | DontEnum, jsNumber(thisObject->m_vector[index]));
return true;
}
return JSObject::getOwnPropertySlotByIndex(thisObject, exec, index, slot);
}
static NO_RETURN_DUE_TO_CRASH void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&)
{
RELEASE_ASSERT_NOT_REACHED();
}
static NO_RETURN_DUE_TO_CRASH bool deleteProperty(JSCell*, ExecState*, PropertyName)
{
RELEASE_ASSERT_NOT_REACHED();
#if !COMPILER(CLANG)
return true;
#endif
}
unsigned getLength() const { return m_vector.size(); }
DECLARE_INFO;
static ArrayPrototype* createPrototype(VM&, JSGlobalObject* globalObject)
{
return globalObject->arrayPrototype();
}
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info(), ArrayClass);
}
protected:
void finishCreation(ExecState* exec)
{
Base::finishCreation(exec->vm());
ASSERT(inherits(info()));
for (size_t i = 0; i < exec->argumentCount(); i++)
m_vector.append(exec->argument(i).toInt32(exec));
}
static const unsigned StructureFlags = OverridesGetOwnPropertySlot | InterceptsGetOwnPropertySlotByIndexEvenWhenLengthIsNotZero | OverridesGetPropertyNames | JSArray::StructureFlags;
private:
RuntimeArray(ExecState* exec, Structure* structure)
: JSArray(exec->vm(), structure, 0)
{
}
static EncodedJSValue lengthGetter(ExecState* exec, JSObject*, EncodedJSValue thisValue, PropertyName)
{
RuntimeArray* thisObject = jsDynamicCast<RuntimeArray*>(JSValue::decode(thisValue));
if (!thisObject)
return throwVMTypeError(exec);
return JSValue::encode(jsNumber(thisObject->getLength()));
}
Vector<int> m_vector;
};
const ClassInfo Element::s_info = { "Element", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(Element) };
const ClassInfo Masquerader::s_info = { "Masquerader", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(Masquerader) };
const ClassInfo Root::s_info = { "Root", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(Root) };
const ClassInfo ImpureGetter::s_info = { "ImpureGetter", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(ImpureGetter) };
const ClassInfo RuntimeArray::s_info = { "RuntimeArray", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(RuntimeArray) };
ElementHandleOwner* Element::handleOwner()
{
static ElementHandleOwner* owner = 0;
if (!owner)
owner = new ElementHandleOwner();
return owner;
}
void Element::finishCreation(VM& vm)
{
Base::finishCreation(vm);
m_root->setElement(this);
}
}
static bool fillBufferWithContentsOfFile(const String& fileName, Vector<char>& buffer);
static EncodedJSValue JSC_HOST_CALL functionCreateProxy(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionCreateRuntimeArray(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionCreateImpureGetter(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionSetImpureGetterDelegate(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionSetElementRoot(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionCreateRoot(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionCreateElement(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionGetElement(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionPrint(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionDebug(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionDescribe(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionDescribeArray(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionJSCStack(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionGCAndSweep(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionFullGC(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionEdenGC(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionDeleteAllCompiledCode(ExecState*);
#ifndef NDEBUG
static EncodedJSValue JSC_HOST_CALL functionReleaseExecutableMemory(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionDumpCallFrame(ExecState*);
#endif
static EncodedJSValue JSC_HOST_CALL functionVersion(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionRun(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionLoad(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionReadFile(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionCheckSyntax(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionReadline(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionPreciseTime(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionNeverInlineFunction(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionOptimizeNextInvocation(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionNumberOfDFGCompiles(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionReoptimizationRetryCount(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionTransferArrayBuffer(ExecState*);
static NO_RETURN_WITH_VALUE EncodedJSValue JSC_HOST_CALL functionQuit(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionFalse1(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionFalse2(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionUndefined1(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionUndefined2(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionEffectful42(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionIdentity(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionMakeMasquerader(ExecState*);
#if ENABLE(SAMPLING_FLAGS)
static EncodedJSValue JSC_HOST_CALL functionSetSamplingFlags(ExecState*);
static EncodedJSValue JSC_HOST_CALL functionClearSamplingFlags(ExecState*);
#endif
struct Script {
bool isFile;
char* argument;
Script(bool isFile, char *argument)
: isFile(isFile)
, argument(argument)
{
}
};
class CommandLine {
public:
CommandLine(int argc, char** argv)
: m_interactive(false)
, m_dump(false)
, m_exitCode(false)
, m_profile(false)
{
parseArguments(argc, argv);
}
bool m_interactive;
bool m_dump;
bool m_exitCode;
Vector<Script> m_scripts;
Vector<String> m_arguments;
bool m_profile;
String m_profilerOutput;
void parseArguments(int, char**);
};
static const char interactivePrompt[] = ">>> ";
class StopWatch {
public:
void start();
void stop();
long getElapsedMS(); // call stop() first
private:
double m_startTime;
double m_stopTime;
};
void StopWatch::start()
{
m_startTime = monotonicallyIncreasingTime();
}
void StopWatch::stop()
{
m_stopTime = monotonicallyIncreasingTime();
}
long StopWatch::getElapsedMS()
{
return static_cast<long>((m_stopTime - m_startTime) * 1000);
}
class GlobalObject : public JSGlobalObject {
private:
GlobalObject(VM&, Structure*);
public:
typedef JSGlobalObject Base;
static GlobalObject* create(VM& vm, Structure* structure, const Vector<String>& arguments)
{
GlobalObject* object = new (NotNull, allocateCell<GlobalObject>(vm.heap)) GlobalObject(vm, structure);
object->finishCreation(vm, arguments);
vm.heap.addFinalizer(object, destroy);
return object;
}
static const bool needsDestruction = false;
DECLARE_INFO;
static const GlobalObjectMethodTable s_globalObjectMethodTable;
static Structure* createStructure(VM& vm, JSValue prototype)
{
return Structure::create(vm, 0, prototype, TypeInfo(GlobalObjectType, StructureFlags), info());
}
static bool javaScriptExperimentsEnabled(const JSGlobalObject*) { return true; }
protected:
void finishCreation(VM& vm, const Vector<String>& arguments)
{
Base::finishCreation(vm);
addFunction(vm, "debug", functionDebug, 1);
addFunction(vm, "describe", functionDescribe, 1);
addFunction(vm, "describeArray", functionDescribeArray, 1);
addFunction(vm, "print", functionPrint, 1);
addFunction(vm, "quit", functionQuit, 0);
addFunction(vm, "gc", functionGCAndSweep, 0);
addFunction(vm, "fullGC", functionFullGC, 0);
addFunction(vm, "edenGC", functionEdenGC, 0);
addFunction(vm, "deleteAllCompiledCode", functionDeleteAllCompiledCode, 0);
#ifndef NDEBUG
addFunction(vm, "dumpCallFrame", functionDumpCallFrame, 0);
addFunction(vm, "releaseExecutableMemory", functionReleaseExecutableMemory, 0);
#endif
addFunction(vm, "version", functionVersion, 1);
addFunction(vm, "run", functionRun, 1);
addFunction(vm, "load", functionLoad, 1);
addFunction(vm, "readFile", functionReadFile, 1);
addFunction(vm, "checkSyntax", functionCheckSyntax, 1);
addFunction(vm, "jscStack", functionJSCStack, 1);
addFunction(vm, "readline", functionReadline, 0);
addFunction(vm, "preciseTime", functionPreciseTime, 0);
addFunction(vm, "neverInlineFunction", functionNeverInlineFunction, 1);
addFunction(vm, "noInline", functionNeverInlineFunction, 1);
addFunction(vm, "numberOfDFGCompiles", functionNumberOfDFGCompiles, 1);
addFunction(vm, "optimizeNextInvocation", functionOptimizeNextInvocation, 1);
addFunction(vm, "reoptimizationRetryCount", functionReoptimizationRetryCount, 1);
addFunction(vm, "transferArrayBuffer", functionTransferArrayBuffer, 1);
#if ENABLE(SAMPLING_FLAGS)
addFunction(vm, "setSamplingFlags", functionSetSamplingFlags, 1);
addFunction(vm, "clearSamplingFlags", functionClearSamplingFlags, 1);
#endif
addConstructableFunction(vm, "Root", functionCreateRoot, 0);
addConstructableFunction(vm, "Element", functionCreateElement, 1);
addFunction(vm, "getElement", functionGetElement, 1);
addFunction(vm, "setElementRoot", functionSetElementRoot, 2);
putDirectNativeFunction(vm, this, Identifier(&vm, "DFGTrue"), 0, functionFalse1, DFGTrueIntrinsic, DontEnum | JSC::Function);
putDirectNativeFunction(vm, this, Identifier(&vm, "OSRExit"), 0, functionUndefined1, OSRExitIntrinsic, DontEnum | JSC::Function);
putDirectNativeFunction(vm, this, Identifier(&vm, "isFinalTier"), 0, functionFalse2, IsFinalTierIntrinsic, DontEnum | JSC::Function);
putDirectNativeFunction(vm, this, Identifier(&vm, "predictInt32"), 0, functionUndefined2, SetInt32HeapPredictionIntrinsic, DontEnum | JSC::Function);
putDirectNativeFunction(vm, this, Identifier(&vm, "fiatInt52"), 0, functionIdentity, FiatInt52Intrinsic, DontEnum | JSC::Function);
addFunction(vm, "effectful42", functionEffectful42, 0);
addFunction(vm, "makeMasquerader", functionMakeMasquerader, 0);
addFunction(vm, "createProxy", functionCreateProxy, 1);
addFunction(vm, "createRuntimeArray", functionCreateRuntimeArray, 0);
addFunction(vm, "createImpureGetter", functionCreateImpureGetter, 1);
addFunction(vm, "setImpureGetterDelegate", functionSetImpureGetterDelegate, 2);
JSArray* array = constructEmptyArray(globalExec(), 0);
for (size_t i = 0; i < arguments.size(); ++i)
array->putDirectIndex(globalExec(), i, jsString(globalExec(), arguments[i]));
putDirect(vm, Identifier(globalExec(), "arguments"), array);
putDirect(vm, Identifier(globalExec(), "console"), jsUndefined());
}
void addFunction(VM& vm, const char* name, NativeFunction function, unsigned arguments)
{
Identifier identifier(&vm, name);
putDirect(vm, identifier, JSFunction::create(vm, this, arguments, identifier.string(), function));
}
void addConstructableFunction(VM& vm, const char* name, NativeFunction function, unsigned arguments)
{
Identifier identifier(&vm, name);
putDirect(vm, identifier, JSFunction::create(vm, this, arguments, identifier.string(), function, NoIntrinsic, function));
}
};
const ClassInfo GlobalObject::s_info = { "global", &JSGlobalObject::s_info, 0, ExecState::globalObjectTable, CREATE_METHOD_TABLE(GlobalObject) };
const GlobalObjectMethodTable GlobalObject::s_globalObjectMethodTable = { &allowsAccessFrom, &supportsProfiling, &supportsRichSourceInfo, &shouldInterruptScript, &javaScriptExperimentsEnabled, 0, &shouldInterruptScriptBeforeTimeout };
GlobalObject::GlobalObject(VM& vm, Structure* structure)
: JSGlobalObject(vm, structure, &s_globalObjectMethodTable)
{
}
static inline String stringFromUTF(const char* utf8)
{
// Find the the first non-ascii character, or nul.
const char* pos = utf8;
while (*pos > 0)
pos++;
size_t asciiLength = pos - utf8;
// Fast case - string is all ascii.
if (!*pos)
return String(utf8, asciiLength);
// Slow case - contains non-ascii characters, use fromUTF8WithLatin1Fallback.
ASSERT(*pos < 0);
ASSERT(strlen(utf8) == asciiLength + strlen(pos));
return String::fromUTF8WithLatin1Fallback(utf8, asciiLength + strlen(pos));
}
static inline SourceCode jscSource(const char* utf8, const String& filename)
{
String str = stringFromUTF(utf8);
return makeSource(str, filename);
}
EncodedJSValue JSC_HOST_CALL functionPrint(ExecState* exec)
{
for (unsigned i = 0; i < exec->argumentCount(); ++i) {
if (i)
putchar(' ');
printf("%s", exec->uncheckedArgument(i).toString(exec)->value(exec).utf8().data());
}
putchar('\n');
fflush(stdout);
return JSValue::encode(jsUndefined());
}
#ifndef NDEBUG
EncodedJSValue JSC_HOST_CALL functionDumpCallFrame(ExecState* exec)
{
if (!exec->callerFrame()->isVMEntrySentinel())
exec->vm().interpreter->dumpCallFrame(exec->callerFrame());
return JSValue::encode(jsUndefined());
}
#endif
EncodedJSValue JSC_HOST_CALL functionDebug(ExecState* exec)
{
fprintf(stderr, "--> %s\n", exec->argument(0).toString(exec)->value(exec).utf8().data());
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionDescribe(ExecState* exec)
{
if (exec->argumentCount() < 1)
return JSValue::encode(jsUndefined());
return JSValue::encode(jsString(exec, toString(exec->argument(0))));
}
EncodedJSValue JSC_HOST_CALL functionDescribeArray(ExecState* exec)
{
if (exec->argumentCount() < 1)
return JSValue::encode(jsUndefined());
JSObject* object = jsDynamicCast<JSObject*>(exec->argument(0));
if (!object)
return JSValue::encode(jsString(exec, "<not object>"));
return JSValue::encode(jsString(exec, toString("<Public length: ", object->getArrayLength(), "; vector length: ", object->getVectorLength(), ">")));
}
class FunctionJSCStackFunctor {
public:
FunctionJSCStackFunctor(StringBuilder& trace)
: m_trace(trace)
{
}
StackVisitor::Status operator()(StackVisitor& visitor)
{
m_trace.append(String::format(" %zu %s\n", visitor->index(), visitor->toString().utf8().data()));
return StackVisitor::Continue;
}
private:
StringBuilder& m_trace;
};
EncodedJSValue JSC_HOST_CALL functionJSCStack(ExecState* exec)
{
StringBuilder trace;
trace.appendLiteral("--> Stack trace:\n");
FunctionJSCStackFunctor functor(trace);
exec->iterate(functor);
fprintf(stderr, "%s", trace.toString().utf8().data());
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionCreateRoot(ExecState* exec)
{
JSLockHolder lock(exec);
return JSValue::encode(Root::create(exec->vm(), exec->lexicalGlobalObject()));
}
EncodedJSValue JSC_HOST_CALL functionCreateElement(ExecState* exec)
{
JSLockHolder lock(exec);
JSValue arg = exec->argument(0);
return JSValue::encode(Element::create(exec->vm(), exec->lexicalGlobalObject(), arg.isNull() ? nullptr : jsCast<Root*>(exec->argument(0))));
}
EncodedJSValue JSC_HOST_CALL functionGetElement(ExecState* exec)
{
JSLockHolder lock(exec);
Element* result = jsCast<Root*>(exec->argument(0).asCell())->element();
return JSValue::encode(result ? result : jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionSetElementRoot(ExecState* exec)
{
JSLockHolder lock(exec);
Element* element = jsCast<Element*>(exec->argument(0));
Root* root = jsCast<Root*>(exec->argument(1));
element->setRoot(root);
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionCreateProxy(ExecState* exec)
{
JSLockHolder lock(exec);
JSValue target = exec->argument(0);
if (!target.isObject())
return JSValue::encode(jsUndefined());
JSObject* jsTarget = asObject(target.asCell());
Structure* structure = JSProxy::createStructure(exec->vm(), exec->lexicalGlobalObject(), jsTarget->prototype());
JSProxy* proxy = JSProxy::create(exec->vm(), structure, jsTarget);
return JSValue::encode(proxy);
}
EncodedJSValue JSC_HOST_CALL functionCreateRuntimeArray(ExecState* exec)
{
JSLockHolder lock(exec);
RuntimeArray* array = RuntimeArray::create(exec);
return JSValue::encode(array);
}
EncodedJSValue JSC_HOST_CALL functionCreateImpureGetter(ExecState* exec)
{
JSLockHolder lock(exec);
JSValue target = exec->argument(0);
JSObject* delegate = nullptr;
if (target.isObject())
delegate = asObject(target.asCell());
Structure* structure = ImpureGetter::createStructure(exec->vm(), exec->lexicalGlobalObject(), jsNull());
ImpureGetter* result = ImpureGetter::create(exec->vm(), structure, delegate);
return JSValue::encode(result);
}
EncodedJSValue JSC_HOST_CALL functionSetImpureGetterDelegate(ExecState* exec)
{
JSLockHolder lock(exec);
JSValue base = exec->argument(0);
if (!base.isObject())
return JSValue::encode(jsUndefined());
JSValue delegate = exec->argument(1);
if (!delegate.isObject())
return JSValue::encode(jsUndefined());
ImpureGetter* impureGetter = jsCast<ImpureGetter*>(asObject(base.asCell()));
impureGetter->setDelegate(exec->vm(), asObject(delegate.asCell()));
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionGCAndSweep(ExecState* exec)
{
JSLockHolder lock(exec);
exec->heap()->collectAllGarbage();
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionFullGC(ExecState* exec)
{
JSLockHolder lock(exec);
exec->heap()->collect(FullCollection);
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionEdenGC(ExecState* exec)
{
JSLockHolder lock(exec);
exec->heap()->collect(EdenCollection);
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionDeleteAllCompiledCode(ExecState* exec)
{
JSLockHolder lock(exec);
exec->heap()->deleteAllCompiledCode();
return JSValue::encode(jsUndefined());
}
#ifndef NDEBUG
EncodedJSValue JSC_HOST_CALL functionReleaseExecutableMemory(ExecState* exec)
{
JSLockHolder lock(exec);
exec->vm().releaseExecutableMemory();
return JSValue::encode(jsUndefined());
}
#endif
EncodedJSValue JSC_HOST_CALL functionVersion(ExecState*)
{
// We need this function for compatibility with the Mozilla JS tests but for now
// we don't actually do any version-specific handling
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL functionRun(ExecState* exec)
{
String fileName = exec->argument(0).toString(exec)->value(exec);
Vector<char> script;
if (!fillBufferWithContentsOfFile(fileName, script))
return JSValue::encode(exec->vm().throwException(exec, createError(exec, "Could not open file.")));
GlobalObject* globalObject = GlobalObject::create(exec->vm(), GlobalObject::createStructure(exec->vm(), jsNull()), Vector<String>());
JSArray* array = constructEmptyArray(globalObject->globalExec(), 0);
for (unsigned i = 1; i < exec->argumentCount(); ++i)
array->putDirectIndex(globalObject->globalExec(), i - 1, exec->uncheckedArgument(i));
globalObject->putDirect(
exec->vm(), Identifier(globalObject->globalExec(), "arguments"), array);
JSValue exception;
StopWatch stopWatch;
stopWatch.start();
evaluate(globalObject->globalExec(), jscSource(script.data(), fileName), JSValue(), &exception);
stopWatch.stop();
if (!!exception) {
exec->vm().throwException(globalObject->globalExec(), exception);
return JSValue::encode(jsUndefined());
}
return JSValue::encode(jsNumber(stopWatch.getElapsedMS()));
}
EncodedJSValue JSC_HOST_CALL functionLoad(ExecState* exec)
{
String fileName = exec->argument(0).toString(exec)->value(exec);
Vector<char> script;
if (!fillBufferWithContentsOfFile(fileName, script))
return JSValue::encode(exec->vm().throwException(exec, createError(exec, "Could not open file.")));
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
JSValue evaluationException;
JSValue result = evaluate(globalObject->globalExec(), jscSource(script.data(), fileName), JSValue(), &evaluationException);
if (evaluationException)
exec->vm().throwException(exec, evaluationException);
return JSValue::encode(result);
}
EncodedJSValue JSC_HOST_CALL functionReadFile(ExecState* exec)
{
String fileName = exec->argument(0).toString(exec)->value(exec);
Vector<char> script;
if (!fillBufferWithContentsOfFile(fileName, script))
return JSValue::encode(exec->vm().throwException(exec, createError(exec, "Could not open file.")));
return JSValue::encode(jsString(exec, stringFromUTF(script.data())));
}
EncodedJSValue JSC_HOST_CALL functionCheckSyntax(ExecState* exec)
{
String fileName = exec->argument(0).toString(exec)->value(exec);
Vector<char> script;
if (!fillBufferWithContentsOfFile(fileName, script))
return JSValue::encode(exec->vm().throwException(exec, createError(exec, "Could not open file.")));
JSGlobalObject* globalObject = exec->lexicalGlobalObject();
StopWatch stopWatch;
stopWatch.start();
JSValue syntaxException;
bool validSyntax = checkSyntax(globalObject->globalExec(), jscSource(script.data(), fileName), &syntaxException);
stopWatch.stop();
if (!validSyntax)
exec->vm().throwException(exec, syntaxException);
return JSValue::encode(jsNumber(stopWatch.getElapsedMS()));
}
#if ENABLE(SAMPLING_FLAGS)
EncodedJSValue JSC_HOST_CALL functionSetSamplingFlags(ExecState* exec)
{
for (unsigned i = 0; i < exec->argumentCount(); ++i) {
unsigned flag = static_cast<unsigned>(exec->uncheckedArgument(i).toNumber(exec));
if ((flag >= 1) && (flag <= 32))
SamplingFlags::setFlag(flag);
}
return JSValue::encode(jsNull());
}
EncodedJSValue JSC_HOST_CALL functionClearSamplingFlags(ExecState* exec)
{
for (unsigned i = 0; i < exec->argumentCount(); ++i) {
unsigned flag = static_cast<unsigned>(exec->uncheckedArgument(i).toNumber(exec));
if ((flag >= 1) && (flag <= 32))
SamplingFlags::clearFlag(flag);
}
return JSValue::encode(jsNull());
}
#endif
EncodedJSValue JSC_HOST_CALL functionReadline(ExecState* exec)
{
Vector<char, 256> line;
int c;
while ((c = getchar()) != EOF) {
// FIXME: Should we also break on \r?
if (c == '\n')
break;
line.append(c);
}
line.append('\0');
return JSValue::encode(jsString(exec, line.data()));
}
EncodedJSValue JSC_HOST_CALL functionPreciseTime(ExecState*)
{
return JSValue::encode(jsNumber(currentTime()));
}
EncodedJSValue JSC_HOST_CALL functionNeverInlineFunction(ExecState* exec)
{
return JSValue::encode(setNeverInline(exec));
}
EncodedJSValue JSC_HOST_CALL functionOptimizeNextInvocation(ExecState* exec)
{
return JSValue::encode(optimizeNextInvocation(exec));
}
EncodedJSValue JSC_HOST_CALL functionNumberOfDFGCompiles(ExecState* exec)
{
return JSValue::encode(numberOfDFGCompiles(exec));
}
EncodedJSValue JSC_HOST_CALL functionReoptimizationRetryCount(ExecState* exec)
{
if (exec->argumentCount() < 1)
return JSValue::encode(jsUndefined());
CodeBlock* block = getSomeBaselineCodeBlockForFunction(exec->argument(0));
if (!block)
return JSValue::encode(jsNumber(0));
return JSValue::encode(jsNumber(block->reoptimizationRetryCounter()));
}
EncodedJSValue JSC_HOST_CALL functionTransferArrayBuffer(ExecState* exec)
{
if (exec->argumentCount() < 1)
return JSValue::encode(exec->vm().throwException(exec, createError(exec, "Not enough arguments")));