summaryrefslogtreecommitdiffstats
path: root/src/qml/compiler/qqmlirloader.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/qml/compiler/qqmlirloader.cpp')
-rw-r--r--src/qml/compiler/qqmlirloader.cpp205
1 files changed, 205 insertions, 0 deletions
diff --git a/src/qml/compiler/qqmlirloader.cpp b/src/qml/compiler/qqmlirloader.cpp
new file mode 100644
index 0000000000..c2eb6da2fa
--- /dev/null
+++ b/src/qml/compiler/qqmlirloader.cpp
@@ -0,0 +1,205 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the tools applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+
+ if (unit->flags & QV4::CompiledData::Unit::IsSingleton) {
+ QmlIR::Pragma *p = New<QmlIR::Pragma>();
+ p->location = QV4::CompiledData::Location();
+ p->type = QmlIR::Pragma::PragmaSingleton;
+ output->pragmas << p;
+ }
+
+ 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)
+ {}
+
+ virtual QQmlJS::AST::SourceLocation firstSourceLocation() const
+ { return location; }
+
+ virtual QQmlJS::AST::SourceLocation lastSourceLocation() const
+ { return location; }
+
+private:
+ QQmlJS::AST::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);
+
+ object->indexOfDefaultPropertyOrAlias = serializedObject->indexOfDefaultPropertyOrAlias;
+ object->defaultPropertyIsAlias = serializedObject->defaultPropertyIsAlias;
+ object->flags = serializedObject->flags;
+ object->id = serializedObject->id;
+ object->location = serializedObject->location;
+ 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.count() - 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.length();
+ const QString script = output->stringAt(b->stringIndex);
+ const int length = script.length();
+ 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.count());
+
+ 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::SignalParameter> >();
+
+ for (uint i = 0; i < serializedSignal->nParameters; ++i) {
+ QmlIR::SignalParameter *p = pool->New<QmlIR::SignalParameter>();
+ *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.count() - 1;
+ f->location = compiledFunction->location;
+ f->nameIndex = compiledFunction->nameIndex;
+
+ f->formals.allocate(pool, int(compiledFunction->nFormals));
+ const quint32_le *formalNameIdx = compiledFunction->formalsTable();
+ for (uint i = 0; i < compiledFunction->nFormals; ++i, ++formalNameIdx)
+ f->formals[i] = *formalNameIdx;
+
+ object->functions->append(f);
+ }
+
+ object->runtimeFunctionIndices.allocate(pool, functionIndices);
+
+ return object;
+}
+
+QT_END_NAMESPACE