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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qqmlirloader_p.h"
#include <private/qqmlirbuilder_p.h>
QT_BEGIN_NAMESPACE
QQmlIRLoader::QQmlIRLoader(const QV4::CompiledData::Unit *qmlData, QmlIR::Document *output)
: unit(qmlData)
, output(output)
{
pool = output->jsParserEngine.pool();
}
void QQmlIRLoader::load()
{
output->jsGenerator.stringTable.initializeFromBackingUnit(unit);
const QV4::CompiledData::QmlUnit *qmlUnit = unit->qmlUnit();
for (quint32 i = 0; i < qmlUnit->nImports; ++i)
output->imports << qmlUnit->importAt(i);
using QmlIR::Pragma;
const auto createPragma = [&](Pragma::PragmaType type) {
Pragma *p = New<Pragma>();
p->location = QV4::CompiledData::Location();
p->type = type;
output->pragmas << p;
return p;
};
const auto createListPragma = [&](
Pragma::PragmaType type,
Pragma::ListPropertyAssignBehaviorValue value) {
createPragma(type)->listPropertyAssignBehavior = value;
};
const auto createComponentPragma = [&](
Pragma::PragmaType type,
Pragma::ComponentBehaviorValue value) {
createPragma(type)->componentBehavior = value;
};
const auto createFunctionSignaturePragma = [&](
Pragma::PragmaType type,
Pragma::FunctionSignatureBehaviorValue value) {
createPragma(type)->functionSignatureBehavior = value;
};
const auto createNativeMethodPragma = [&](
Pragma::PragmaType type,
Pragma::NativeMethodBehaviorValue value) {
createPragma(type)->nativeMethodBehavior = value;
};
const auto createValueTypePragma = [&](
Pragma::PragmaType type,
Pragma::ValueTypeBehaviorValues value) {
createPragma(type)->valueTypeBehavior = value;
};
if (unit->flags & QV4::CompiledData::Unit::IsSingleton)
createPragma(Pragma::Singleton);
if (unit->flags & QV4::CompiledData::Unit::IsStrict)
createPragma(Pragma::Strict);
if (unit->flags & QV4::CompiledData::Unit::ListPropertyAssignReplace)
createListPragma(Pragma::ListPropertyAssignBehavior, Pragma::Replace);
else if (unit->flags & QV4::CompiledData::Unit::ListPropertyAssignReplaceIfNotDefault)
createListPragma(Pragma::ListPropertyAssignBehavior, Pragma::ReplaceIfNotDefault);
if (unit->flags & QV4::CompiledData::Unit::ComponentsBound)
createComponentPragma(Pragma::ComponentBehavior, Pragma::Bound);
if (unit->flags & QV4::CompiledData::Unit::FunctionSignaturesIgnored)
createFunctionSignaturePragma(Pragma::FunctionSignatureBehavior, Pragma::Ignored);
if (unit->flags & QV4::CompiledData::Unit::NativeMethodsAcceptThisObject)
createNativeMethodPragma(Pragma::NativeMethodBehavior, Pragma::AcceptThisObject);
Pragma::ValueTypeBehaviorValues valueTypeBehavior = {};
if (unit->flags & QV4::CompiledData::Unit::ValueTypesCopied)
valueTypeBehavior |= Pragma::Copy;
if (unit->flags & QV4::CompiledData::Unit::ValueTypesAddressable)
valueTypeBehavior |= Pragma::Addressable;
if (valueTypeBehavior)
createValueTypePragma(Pragma::ValueTypeBehavior, valueTypeBehavior);
for (uint i = 0; i < qmlUnit->nObjects; ++i) {
const QV4::CompiledData::Object *serializedObject = qmlUnit->objectAt(i);
QmlIR::Object *object = loadObject(serializedObject);
output->objects.append(object);
}
}
struct FakeExpression : public QQmlJS::AST::NullExpression
{
FakeExpression(int start, int length)
: location(start, length)
{}
QQmlJS::SourceLocation firstSourceLocation() const override
{ return location; }
QQmlJS::SourceLocation lastSourceLocation() const override
{ return location; }
private:
QQmlJS::SourceLocation location;
};
QmlIR::Object *QQmlIRLoader::loadObject(const QV4::CompiledData::Object *serializedObject)
{
QmlIR::Object *object = pool->New<QmlIR::Object>();
object->init(pool, serializedObject->inheritedTypeNameIndex, serializedObject->idNameIndex,
serializedObject->location);
object->indexOfDefaultPropertyOrAlias = serializedObject->indexOfDefaultPropertyOrAlias;
object->defaultPropertyIsAlias = serializedObject->hasAliasAsDefaultProperty();
object->flags = serializedObject->flags();
object->id = serializedObject->objectId();
object->locationOfIdProperty = serializedObject->locationOfIdProperty;
QVector<int> functionIndices;
functionIndices.reserve(serializedObject->nFunctions + serializedObject->nBindings / 2);
for (uint i = 0; i < serializedObject->nBindings; ++i) {
QmlIR::Binding *b = pool->New<QmlIR::Binding>();
*static_cast<QV4::CompiledData::Binding*>(b) = serializedObject->bindingTable()[i];
object->bindings->append(b);
if (b->type() == QV4::CompiledData::Binding::Type_Script) {
functionIndices.append(b->value.compiledScriptIndex);
b->value.compiledScriptIndex = functionIndices.size() - 1;
QmlIR::CompiledFunctionOrExpression *foe = pool->New<QmlIR::CompiledFunctionOrExpression>();
foe->nameIndex = 0;
QQmlJS::AST::ExpressionNode *expr;
if (b->stringIndex != quint32(0)) {
const int start = output->code.size();
const QString script = output->stringAt(b->stringIndex);
const int length = script.size();
output->code.append(script);
expr = new (pool) FakeExpression(start, length);
} else
expr = new (pool) QQmlJS::AST::NullExpression();
foe->node = new (pool) QQmlJS::AST::ExpressionStatement(expr); // dummy
object->functionsAndExpressions->append(foe);
}
}
Q_ASSERT(object->functionsAndExpressions->count == functionIndices.size());
for (uint i = 0; i < serializedObject->nSignals; ++i) {
const QV4::CompiledData::Signal *serializedSignal = serializedObject->signalAt(i);
QmlIR::Signal *s = pool->New<QmlIR::Signal>();
s->nameIndex = serializedSignal->nameIndex;
s->location = serializedSignal->location;
s->parameters = pool->New<QmlIR::PoolList<QmlIR::Parameter> >();
for (uint i = 0; i < serializedSignal->nParameters; ++i) {
QmlIR::Parameter *p = pool->New<QmlIR::Parameter>();
*static_cast<QV4::CompiledData::Parameter*>(p) = *serializedSignal->parameterAt(i);
s->parameters->append(p);
}
object->qmlSignals->append(s);
}
for (uint i = 0; i < serializedObject->nEnums; ++i) {
const QV4::CompiledData::Enum *serializedEnum = serializedObject->enumAt(i);
QmlIR::Enum *e = pool->New<QmlIR::Enum>();
e->nameIndex = serializedEnum->nameIndex;
e->location = serializedEnum->location;
e->enumValues = pool->New<QmlIR::PoolList<QmlIR::EnumValue> >();
for (uint i = 0; i < serializedEnum->nEnumValues; ++i) {
QmlIR::EnumValue *v = pool->New<QmlIR::EnumValue>();
*static_cast<QV4::CompiledData::EnumValue*>(v) = *serializedEnum->enumValueAt(i);
e->enumValues->append(v);
}
object->qmlEnums->append(e);
}
const QV4::CompiledData::Property *serializedProperty = serializedObject->propertyTable();
for (uint i = 0; i < serializedObject->nProperties; ++i, ++serializedProperty) {
QmlIR::Property *p = pool->New<QmlIR::Property>();
*static_cast<QV4::CompiledData::Property*>(p) = *serializedProperty;
object->properties->append(p);
}
{
const QV4::CompiledData::Alias *serializedAlias = serializedObject->aliasTable();
for (uint i = 0; i < serializedObject->nAliases; ++i, ++serializedAlias) {
QmlIR::Alias *a = pool->New<QmlIR::Alias>();
*static_cast<QV4::CompiledData::Alias*>(a) = *serializedAlias;
object->aliases->append(a);
}
}
const quint32_le *functionIdx = serializedObject->functionOffsetTable();
for (uint i = 0; i < serializedObject->nFunctions; ++i, ++functionIdx) {
QmlIR::Function *f = pool->New<QmlIR::Function>();
const QV4::CompiledData::Function *compiledFunction = unit->functionAt(*functionIdx);
functionIndices.append(*functionIdx);
f->index = functionIndices.size() - 1;
f->location = compiledFunction->location;
f->nameIndex = compiledFunction->nameIndex;
f->returnType = compiledFunction->returnType;
f->formals.allocate(pool, int(compiledFunction->nFormals));
const QV4::CompiledData::Parameter *formalNameIdx = compiledFunction->formalsTable();
for (uint i = 0; i < compiledFunction->nFormals; ++i, ++formalNameIdx)
*static_cast<QV4::CompiledData::Parameter*>(&f->formals[i]) = *formalNameIdx;
object->functions->append(f);
}
object->runtimeFunctionIndices.allocate(pool, functionIndices);
const QV4::CompiledData::InlineComponent *serializedInlineComponent = serializedObject->inlineComponentTable();
for (uint i = 0; i < serializedObject->nInlineComponents; ++i, ++serializedInlineComponent) {
QmlIR::InlineComponent *ic = pool->New<QmlIR::InlineComponent>();
*static_cast<QV4::CompiledData::InlineComponent*>(ic) = *serializedInlineComponent;
object->inlineComponents->append(ic);
}
const QV4::CompiledData::RequiredPropertyExtraData *serializedRequiredPropertyExtraData = serializedObject->requiredPropertyExtraDataTable();
for (uint i = 0u; i < serializedObject->nRequiredPropertyExtraData; ++i, ++serializedRequiredPropertyExtraData) {
QmlIR::RequiredPropertyExtraData *extra = pool->New<QmlIR::RequiredPropertyExtraData>();
*static_cast<QV4::CompiledData::RequiredPropertyExtraData *>(extra) = *serializedRequiredPropertyExtraData;
object->requiredPropertyExtraDatas->append(extra);
}
return object;
}
QT_END_NAMESPACE
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