unsigned Signature::hash() const
{
uint32_t sizeToHash = allocatedSize(argumentCount()) / sizeof(allocationSizeRoundsUpTo);
// Assumes over-allocated memory was zero-initialized, and rounded-up to allocationSizeRoundsUpTo so that a wider hash can be performed.
ASSERT(sizeToHash * sizeof(allocationSizeRoundsUpTo) == allocatedSize(argumentCount()));
unsigned accumulator = 0xa1bcedd8u;
const auto* pos = reinterpret_cast<const allocationSizeRoundsUpTo*>(this);
for (uint32_t i = 0; i < sizeToHash; ++i)
accumulator = WTF::pairIntHash(accumulator, WTF::IntHash<allocationSizeRoundsUpTo>::hash(*pos));
return accumulator;
}
bool ArgList_TokenData::compare(const TokenData *other) const
{
const ArgList_TokenData *o = static_cast<const ArgList_TokenData *>(other);
if (argumentCount() != o->argumentCount())
return false;
foreach (int i, bRangeD(0, argumentCount() - 1)) {
if (!argument(i)->compare(o->argument(i)))
return false;
}
return true;
}
void SemanticAnalysisVisitor::visit(ast::FunctionCall& functionCall) {
functionCall.visitOperand(*this);
functionCall.visitArguments(*this);
// FIXME: try/catch for undefined functions
auto functionSymbol = symbolTable.findFunction(functionCall.operandSymbol()->getName());
functionCall.setSymbol(functionSymbol);
auto& arguments = functionCall.getArgumentList();
if (arguments.size() == functionSymbol.argumentCount()) {
auto& declaredArguments = functionSymbol.arguments();
for (std::size_t i { 0 }; i < arguments.size(); ++i) {
const auto& declaredArgument = declaredArguments.at(i);
const auto& actualArgument = arguments.at(i)->getResultSymbol();
typeCheck(actualArgument->getType(), *declaredArgument, functionCall.getContext());
}
auto& returnType = functionSymbol.returnType();
if (!returnType.isVoid()) {
functionCall.setResultSymbol(symbolTable.createTemporarySymbol(std::unique_ptr<ast::FundamentalType> {
returnType.clone() }));
}
} else {
semanticError("no match for function " + functionSymbol.getType().toString(), functionCall.getContext());
}
}
ArgumentDesc *ActionDesc::argumentAt(NPT_Ordinal index) const
{
if (index < argumentCount()) {
return *m_private->m_argumentList.GetItem(index);
}
return NULL;
}
Value FunSubstring::evaluate() const
{
String s = argument(0).evaluate().toString();
double doublePos = argument(1).evaluate().toNumber();
if (std::isnan(doublePos))
return emptyString();
long pos = static_cast<long>(FunRound::round(doublePos));
bool haveLength = argumentCount() == 3;
long len = -1;
if (haveLength) {
double doubleLen = argument(2).evaluate().toNumber();
if (std::isnan(doubleLen))
return emptyString();
len = static_cast<long>(FunRound::round(doubleLen));
}
if (pos > long(s.length()))
return emptyString();
if (pos < 1) {
if (haveLength) {
len -= 1 - pos;
if (len < 1)
return emptyString();
}
pos = 1;
}
return s.substring(pos - 1, len);
}
String ScriptCallContext::argumentStringAt(unsigned index,
bool checkForNullOrUndefined)
{
if (index >= argumentCount())
return String();
return ToWebCoreString(m_args[index]);
}
/*!
Returns the function argument at the given \a index.
If \a index >= argumentCount(), a QScriptValue of
the primitive type Undefined is returned.
\sa argumentCount()
*/
QScriptValue QScriptContext::argument(int index) const
{
if (index < 0)
return QScriptValue();
if (index >= argumentCount())
return QScriptValue(QScriptValue::UndefinedValue);
QScriptValue v = argumentsObject().property(index);
return v;
}
Value FunNormalizeSpace::evaluate() const
{
if (!argumentCount()) {
String s = Value(Expression::evaluationContext().node.get()).toString();
return s.simplifyWhiteSpace();
}
String s = argument(0).evaluate().toString();
return s.simplifyWhiteSpace();
}
bool ScriptArguments::getFirstArgumentAsString(String& result) const
{
if (!argumentCount())
return false;
const ScriptValue& value = argumentAt(0);
ScriptState::Scope scope(m_scriptState.get());
result = V8ValueStringBuilder::toString(value.v8Value(), value.isolate());
return true;
}
String Signature::toString() const
{
String result(makeString(returnType()));
result.append(" (");
for (SignatureArgCount arg = 0; arg < argumentCount(); ++arg) {
if (arg)
result.append(", ");
result.append(makeString(argument(arg)));
}
result.append(')');
return result;
}
Value FunConcat::evaluate() const
{
StringBuilder result;
result.reserveCapacity(1024);
for (unsigned i = 0, count = argumentCount(); i < count; ++i) {
String str(argument(i).evaluate().toString());
result.append(str);
}
return result.toString();
}
bool ScriptArguments::getFirstArgumentAsString(String& result)
{
if (!argumentCount())
return false;
if (!globalState()) {
ASSERT_NOT_REACHED();
return false;
}
result = argumentAt(0).toString(globalState());
return true;
}
Value FunNamespaceURI::evaluate() const
{
if (argumentCount() > 0) {
Value a = argument(0).evaluate();
if (!a.isNodeSet())
return emptyString();
Node* node = a.toNodeSet().firstNode();
return node ? node->namespaceURI().string() : emptyString();
}
return evaluationContext().node->namespaceURI().string();
}
Value FunName::evaluate() const
{
if (argumentCount() > 0) {
Value a = argument(0).evaluate();
if (!a.isNodeSet())
return emptyString();
Node* node = a.toNodeSet().firstNode();
return node ? expandedName(node) : emptyString();
}
return expandedName(evaluationContext().node.get());
}
/*!
\since 4.4
Returns a string representation of this context.
This is useful for debugging.
\sa backtrace()
*/
QString QScriptContext::toString() const
{
QScriptContextInfo info(this);
QString result;
QString functionName = info.functionName();
if (functionName.isEmpty()) {
if (parentContext()) {
const JSC::CallFrame *frame = QScriptEnginePrivate::frameForContext(this);
if (info.functionType() == QScriptContextInfo::ScriptFunction)
result.append(QLatin1String("<anonymous>"));
else if(frame->callerFrame()->hasHostCallFrameFlag())
result.append(QLatin1String("<eval>"));
else
result.append(QLatin1String("<native>"));
} else {
result.append(QLatin1String("<global>"));
}
} else {
result.append(functionName);
}
QStringList parameterNames = info.functionParameterNames();
result.append(QLatin1Char('('));
for (int i = 0; i < argumentCount(); ++i) {
if (i > 0)
result.append(QLatin1String(", "));
if (i < parameterNames.count()) {
result.append(parameterNames.at(i));
result.append(QLatin1String(" = "));
}
QScriptValue arg = argument(i);
if (arg.isString())
result.append(QLatin1Char('\''));
result.append(arg.toString());
if (arg.isString())
result.append(QLatin1Char('\''));
}
result.append(QLatin1Char(')'));
QString fileName = info.fileName();
int lineNumber = info.lineNumber();
result.append(QLatin1String(" at "));
if (!fileName.isEmpty()) {
result.append(fileName);
result.append(QLatin1Char(':'));
}
result.append(QString::number(lineNumber));
return result;
}
bool ScriptArguments::getFirstArgumentAsString(String& result, bool checkForNullOrUndefined)
{
if (!argumentCount())
return false;
const ScriptValue& value = argumentAt(0);
ScriptState::Scope scope(m_scriptState.get());
if (checkForNullOrUndefined && (value.isNull() || value.isUndefined()))
return false;
// We intentionally ignore an exception that can be thrown in ToString().
v8::TryCatch block;
v8::Handle<v8::String> string = value.v8Value()->ToString();
result = string.IsEmpty() ? String() : toCoreString(string);
return true;
}
bool ScriptArguments::getFirstArgumentAsString(String& result, bool checkForNullOrUndefined)
{
if (!argumentCount())
return false;
const ScriptValue& value = argumentAt(0);
if (checkForNullOrUndefined && (value.isNull() || value.isUndefined()))
return false;
if (!globalState()) {
ASSERT_NOT_REACHED();
return false;
}
result = value.toString(globalState());
return true;
}
/*!
\since 4.4
Returns a string representation of this context.
This is useful for debugging.
\sa backtrace()
*/
QString QScriptContext::toString() const
{
QScriptContextInfo info(this);
QString result;
QString functionName = info.functionName();
if (functionName.isEmpty()) {
if (parentContext()) {
if (info.functionType() == QScriptContextInfo::ScriptFunction)
result.append(QLatin1String("<anonymous>"));
else
result.append(QLatin1String("<native>"));
} else {
result.append(QLatin1String("<global>"));
}
} else {
result.append(functionName);
}
QStringList parameterNames = info.functionParameterNames();
result.append(QLatin1String(" ("));
for (int i = 0; i < argumentCount(); ++i) {
if (i > 0)
result.append(QLatin1String(", "));
if (i < parameterNames.count()) {
result.append(parameterNames.at(i));
result.append(QLatin1Char('='));
}
QScriptValue arg = argument(i);
result.append(safeValueToString(arg));
}
result.append(QLatin1String(")"));
QString fileName = info.fileName();
int lineNumber = info.lineNumber();
result.append(QLatin1String(" at "));
if (!fileName.isEmpty()) {
result.append(fileName);
result.append(QLatin1Char(':'));
}
result.append(QString::number(lineNumber));
return result;
}
void CallFrame::dump(PrintStream& out)
{
if (CodeBlock* codeBlock = this->codeBlock()) {
out.print(codeBlock->inferredName(), "#", codeBlock->hashAsStringIfPossible(), " [", codeBlock->jitType(), "]");
out.print("(");
thisValue().dumpForBacktrace(out);
for (size_t i = 0; i < argumentCount(); ++i) {
out.print(", ");
JSValue value = argument(i);
value.dumpForBacktrace(out);
}
out.print(")");
return;
}
out.print(returnPC());
}
Value FunNumber::evaluate() const
{
if (!argumentCount())
return Value(Expression::evaluationContext().node.get()).toNumber();
return argument(0).evaluate().toNumber();
}
Value FunStringLength::evaluate() const
{
if (!argumentCount())
return Value(Expression::evaluationContext().node.get()).toString().length();
return argument(0).evaluate().toString().length();
}
NPT_Cardinal ActionDesc::outputArgumentCount() const
{
return argumentCount() - m_private->m_inputArgumentCount;
}