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, 0, globalObject(), list);
}
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::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();
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 jsJavaScriptCallFrameLOCAL_SCOPE(exec, JSValue(), Identifier());
foundLocalScope = true;
} else if (!index)
return jsJavaScriptCallFrameCLOSURE_SCOPE(exec, JSValue(), Identifier());
}
if (!index) {
// Last in the chain is global scope.
if (++iter == end)
return jsJavaScriptCallFrameGLOBAL_SCOPE(exec, JSValue(), Identifier());
return jsJavaScriptCallFrameWITH_SCOPE(exec, JSValue(), Identifier());
}
--index;
}
return jsUndefined();
}
