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| |
| #include "qv4function_p.h" |
| #include "qv4functionobject_p.h" |
| #include "qv4managed_p.h" |
| #include "qv4string_p.h" |
| #include "qv4value_p.h" |
| #include "qv4engine_p.h" |
| #include "qv4lookup_p.h" |
| #include <private/qv4mm_p.h> |
| #include <private/qv4identifiertable_p.h> |
| #include <private/qv4functiontable_p.h> |
| #include <assembler/MacroAssemblerCodeRef.h> |
| #include <private/qv4vme_moth_p.h> |
| #include <private/qqmlglobal_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QV4; |
| |
| ReturnedValue Function::call(const Value *thisObject, const Value *argv, int argc, const ExecutionContext *context) { |
| ExecutionEngine *engine = context->engine(); |
| CppStackFrame frame; |
| frame.init(engine, this, argv, argc); |
| frame.setupJSFrame(engine->jsStackTop, Value::undefinedValue(), context->d(), |
| thisObject ? *thisObject : Value::undefinedValue(), |
| Value::undefinedValue()); |
| |
| frame.push(); |
| engine->jsStackTop += frame.requiredJSStackFrameSize(); |
| |
| ReturnedValue result = Moth::VME::exec(&frame, engine); |
| |
| frame.pop(); |
| |
| return result; |
| } |
| |
| Function *Function::create(ExecutionEngine *engine, ExecutableCompilationUnit *unit, |
| const CompiledData::Function *function) |
| { |
| return new Function(engine, unit, function); |
| } |
| |
| void Function::destroy() |
| { |
| delete this; |
| } |
| |
| Function::Function(ExecutionEngine *engine, ExecutableCompilationUnit *unit, |
| const CompiledData::Function *function) |
| : FunctionData(unit) |
| , compiledFunction(function) |
| , codeData(function->code()) |
| , jittedCode(nullptr) |
| , codeRef(nullptr) |
| { |
| Scope scope(engine); |
| Scoped<InternalClass> ic(scope, engine->internalClasses(EngineBase::Class_CallContext)); |
| |
| // first locals |
| const quint32_le *localsIndices = compiledFunction->localsTable(); |
| for (quint32 i = 0; i < compiledFunction->nLocals; ++i) |
| ic = ic->addMember(engine->identifierTable->asPropertyKey(compilationUnit->runtimeStrings[localsIndices[i]]), Attr_NotConfigurable); |
| |
| const CompiledData::Parameter *formalsIndices = compiledFunction->formalsTable(); |
| for (quint32 i = 0; i < compiledFunction->nFormals; ++i) |
| ic = ic->addMember(engine->identifierTable->asPropertyKey(compilationUnit->runtimeStrings[formalsIndices[i].nameIndex]), Attr_NotConfigurable); |
| internalClass = ic->d(); |
| |
| nFormals = compiledFunction->nFormals; |
| } |
| |
| Function::~Function() |
| { |
| if (codeRef) { |
| destroyFunctionTable(this, codeRef); |
| delete codeRef; |
| } |
| } |
| |
| void Function::updateInternalClass(ExecutionEngine *engine, const QList<QByteArray> ¶meters) |
| { |
| QStringList parameterNames; |
| |
| // Resolve duplicate parameter names: |
| for (int i = 0, ei = parameters.count(); i != ei; ++i) { |
| const QByteArray ¶m = parameters.at(i); |
| int duplicate = -1; |
| |
| for (int j = i - 1; j >= 0; --j) { |
| const QByteArray &prevParam = parameters.at(j); |
| if (param == prevParam) { |
| duplicate = j; |
| break; |
| } |
| } |
| |
| if (duplicate == -1) { |
| parameterNames.append(QString::fromUtf8(param)); |
| } else { |
| const QString &dup = parameterNames[duplicate]; |
| parameterNames.append(dup); |
| parameterNames[duplicate] = |
| QString(0xfffe) + QString::number(duplicate) + dup; |
| } |
| |
| } |
| |
| internalClass = engine->internalClasses(EngineBase::Class_CallContext); |
| |
| // first locals |
| const quint32_le *localsIndices = compiledFunction->localsTable(); |
| for (quint32 i = 0; i < compiledFunction->nLocals; ++i) { |
| internalClass = internalClass->addMember( |
| engine->identifierTable->asPropertyKey(compilationUnit->runtimeStrings[localsIndices[i]]), |
| Attr_NotConfigurable); |
| } |
| |
| Scope scope(engine); |
| ScopedString arg(scope); |
| for (const QString ¶meterName : parameterNames) { |
| arg = engine->newIdentifier(parameterName); |
| internalClass = internalClass->addMember(arg->propertyKey(), Attr_NotConfigurable); |
| } |
| nFormals = parameters.size(); |
| } |
| |
| QString Function::prettyName(const Function *function, const void *code) |
| { |
| QString prettyName = function ? function->name()->toQString() : QString(); |
| if (prettyName.isEmpty()) { |
| prettyName = QString::number(reinterpret_cast<quintptr>(code), 16); |
| prettyName.prepend(QLatin1String("QV4::Function(0x")); |
| prettyName.append(QLatin1Char(')')); |
| } |
| return prettyName; |
| } |
| |
| QQmlSourceLocation Function::sourceLocation() const |
| { |
| return QQmlSourceLocation(sourceFile(), compiledFunction->location.line, compiledFunction->location.column); |
| } |
| |
| QT_END_NAMESPACE |