void JSHTMLElement::pushEventHandlerScope(ExecState* exec, ScopeChain& scope) const
{
HTMLElement* element = impl();
// The document is put on first, fall back to searching it only after the element and form.
scope.push(static_cast<JSObject*>(toJS(exec, element->ownerDocument())));
// The form is next, searched before the document, but after the element itself.
if (HTMLFormElement* form = element->form())
scope.push(static_cast<JSObject*>(toJS(exec, form)));
// The element is on top, searched first.
scope.push(static_cast<JSObject*>(toJS(exec, element)));
}
// ECMA 15.3.2 The Function Constructor
JSObject *FunctionObjectImp::construct(ExecState *exec, const List &args, const Identifier &functionName, const UString &sourceURL, int lineNumber)
{
UString p("");
UString body;
int argsSize = args.size();
if (argsSize == 0) {
body = "";
} else if (argsSize == 1) {
body = args[0]->toString(exec);
} else {
p = args[0]->toString(exec);
for (int k = 1; k < argsSize - 1; k++) {
p += "," + args[k]->toString(exec);
}
body = args[argsSize - 1]->toString(exec);
}
// parse the source code
int sourceId;
int errLine;
UString errMsg;
RefPtr<FunctionBodyNode> functionBody = parser().parseFunctionBody(sourceURL, lineNumber, body.data(), body.size(), &sourceId, &errLine, &errMsg);
// notify debugger that source has been parsed
Debugger *dbg = exec->dynamicInterpreter()->debugger();
if (dbg) {
// make sure to pass in sourceURL, since it's useful for lazy event listeners, and empty for actual function ctor
dbg->reportSourceParsed(exec, functionBody.get(), sourceId, sourceURL, body, lineNumber, errLine, errMsg);
}
// no program node == syntax error - throw a syntax error
if (!functionBody)
// we can't return a Completion(Throw) here, so just set the exception
// and return it
{
return throwError(exec, SyntaxError, errMsg, errLine, sourceId, sourceURL);
}
ScopeChain scopeChain;
scopeChain.push(exec->lexicalInterpreter()->globalObject());
FunctionImp *fimp = new FunctionImp(exec, functionName, functionBody.get(), scopeChain);
// parse parameter list. throw syntax error on illegal identifiers
int len = p.size();
const UChar *c = p.data();
int i = 0, params = 0;
UString param;
while (i < len) {
while (*c == ' ' && i < len) {
c++, i++;
}
if (Lexer::isIdentStart(c->uc)) { // else error
param = UString(c, 1);
c++, i++;
while (i < len && (Lexer::isIdentPart(c->uc))) {
param += UString(c, 1);
c++, i++;
}
while (i < len && *c == ' ') {
c++, i++;
}
if (i == len) {
functionBody->addParam(Identifier(param));
params++;
break;
} else if (*c == ',') {
functionBody->addParam(Identifier(param));
params++;
c++, i++;
continue;
} // else error
}
return throwError(exec, SyntaxError, "Syntax error in parameter list");
}
List consArgs;
JSObject *objCons = exec->lexicalInterpreter()->builtinObject();
JSObject *prototype = objCons->construct(exec, List::empty());
prototype->put(exec, exec->propertyNames().constructor, fimp, DontEnum | DontDelete | ReadOnly);
// ECMA Edition 5.1r6 - 15.3.5.2 - [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false
fimp->put(exec, exec->propertyNames().prototype, prototype, Internal | DontDelete | DontEnum);
return fimp;
}
