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/*
* 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 "JSJavaScriptCallFrame.h"
#if ENABLE(INSPECTOR)
#include "Error.h"
#include "JSCJSValue.h"
#include "JSCellInlines.h"
#include "JSJavaScriptCallFramePrototype.h"
#include "StructureInlines.h"
using namespace JSC;
namespace Inspector {
const ClassInfo JSJavaScriptCallFrame::s_info = { "JavaScriptCallFrame", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSJavaScriptCallFrame) };
JSJavaScriptCallFrame::JSJavaScriptCallFrame(VM& vm, Structure* structure, PassRefPtr<JavaScriptCallFrame> impl)
: JSDestructibleObject(vm, structure)
, m_impl(impl.leakRef())
{
}
void JSJavaScriptCallFrame::finishCreation(VM& vm)
{
Base::finishCreation(vm);
ASSERT(inherits(info()));
}
JSObject* JSJavaScriptCallFrame::createPrototype(VM& vm, JSGlobalObject* globalObject)
{
return JSJavaScriptCallFramePrototype::create(vm, globalObject, JSJavaScriptCallFramePrototype::createStructure(vm, globalObject, globalObject->objectPrototype()));
}
void JSJavaScriptCallFrame::destroy(JSC::JSCell* cell)
{
JSJavaScriptCallFrame* thisObject = static_cast<JSJavaScriptCallFrame*>(cell);
thisObject->JSJavaScriptCallFrame::~JSJavaScriptCallFrame();
}
void JSJavaScriptCallFrame::releaseImpl()
{
if (m_impl) {
m_impl->deref();
m_impl = nullptr;
}
}
JSJavaScriptCallFrame::~JSJavaScriptCallFrame()
{
releaseImpl();
}
JSValue JSJavaScriptCallFrame::evaluate(ExecState* exec)
{
JSValue exception;
JSValue result = impl().evaluate(exec->argument(0).toString(exec)->value(exec), exception);
if (exception)
exec->vm().throwException(exec, exception);
return result;
}
JSValue JSJavaScriptCallFrame::scopeType(ExecState* exec)
{
if (!impl().scopeChain())
return jsUndefined();
if (!exec->argument(0).isInt32())
return jsUndefined();
int index = exec->argument(0).asInt32();
JSScope* scopeChain = impl().scopeChain();
ScopeChainIterator end = scopeChain->end();
// FIXME: We should be identifying and returning CATCH_SCOPE appropriately.
bool foundLocalScope = false;
for (ScopeChainIterator iter = scopeChain->begin(); iter != end; ++iter) {
JSObject* scope = iter.get();
if (scope->isActivationObject()) {
if (!foundLocalScope) {
// First activation object is local scope, each successive activation object is closure.
if (!index)
return jsNumber(JSJavaScriptCallFrame::LOCAL_SCOPE);
foundLocalScope = true;
} else if (!index)
return jsNumber(JSJavaScriptCallFrame::CLOSURE_SCOPE);
}
if (!index) {
// Last in the chain is global scope.
if (++iter == end)
return jsNumber(JSJavaScriptCallFrame::GLOBAL_SCOPE);
return jsNumber(JSJavaScriptCallFrame::WITH_SCOPE);
}
--index;
}
ASSERT_NOT_REACHED();
return jsUndefined();
}
JSValue JSJavaScriptCallFrame::caller(ExecState* exec) const
{
return toJS(exec, globalObject(), impl().caller());
}
JSValue JSJavaScriptCallFrame::sourceID(ExecState*) const
{
return jsNumber(impl().sourceID());
}
JSValue JSJavaScriptCallFrame::line(ExecState*) const
{
return jsNumber(impl().line());
}
JSValue JSJavaScriptCallFrame::column(ExecState*) const
{
return jsNumber(impl().column());
}
JSValue JSJavaScriptCallFrame::functionName(ExecState* exec) const
{
return jsString(exec, impl().functionName());
}
JSValue JSJavaScriptCallFrame::scopeChain(ExecState* exec) const
{
if (!impl().scopeChain())
return jsNull();
JSScope* scopeChain = impl().scopeChain();
ScopeChainIterator iter = scopeChain->begin();
ScopeChainIterator end = scopeChain->end();
// We must always have something in the scope chain.
ASSERT(iter != end);
MarkedArgumentBuffer list;
do {
list.append(iter.get());
++iter;
} while (iter != end);
return constructArray(exec, nullptr, globalObject(), list);
}
JSValue JSJavaScriptCallFrame::thisObject(ExecState*) const
{
return impl().thisValue();
}
JSValue JSJavaScriptCallFrame::type(ExecState* exec) const
{
switch (impl().type()) {
case DebuggerCallFrame::FunctionType:
return jsNontrivialString(exec, ASCIILiteral("function"));
case DebuggerCallFrame::ProgramType:
return jsNontrivialString(exec, ASCIILiteral("program"));
}
ASSERT_NOT_REACHED();
return jsNull();
}
JSValue toJS(ExecState* exec, JSGlobalObject* globalObject, JavaScriptCallFrame* impl)
{
if (!impl)
return jsNull();
JSObject* prototype = JSJavaScriptCallFrame::createPrototype(exec->vm(), globalObject);
Structure* structure = JSJavaScriptCallFrame::createStructure(exec->vm(), globalObject, prototype);
JSJavaScriptCallFrame* javaScriptCallFrame = JSJavaScriptCallFrame::create(exec->vm(), structure, impl);
return javaScriptCallFrame;
}
JSJavaScriptCallFrame* toJSJavaScriptCallFrame(JSValue value)
{
return value.inherits(JSJavaScriptCallFrame::info()) ? jsCast<JSJavaScriptCallFrame*>(value) : nullptr;
}
} // namespace Inspector
#endif // ENABLE(INSPECTOR)
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