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-rw-r--r--src/qml/jsruntime/qv4lookup.cpp365
1 files changed, 365 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4lookup.cpp b/src/qml/jsruntime/qv4lookup.cpp
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+++ b/src/qml/jsruntime/qv4lookup.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtQml module 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 Digia. For licensing terms and
+** conditions see http://qt.digia.com/licensing. For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights. These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "qv4lookup_p.h"
+#include "qv4functionobject_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QV4;
+
+Property *Lookup::lookup(Object *obj, PropertyAttributes *attrs)
+{
+ int i = 0;
+ while (i < level && obj && obj->internalClass == classList[i]) {
+ obj = obj->prototype;
+ ++i;
+ }
+
+ if (index != UINT_MAX && obj->internalClass == classList[i]) {
+ *attrs = obj->internalClass->propertyData.at(index);
+ return obj->memberData + index;
+ }
+
+ while (i < Size && obj) {
+ classList[i] = obj->internalClass;
+
+ index = obj->internalClass->find(name);
+ if (index != UINT_MAX) {
+ level = i;
+ *attrs = obj->internalClass->propertyData.at(index);
+ return obj->memberData + index;
+ }
+
+ obj = obj->prototype;
+ ++i;
+ }
+ level = i;
+
+ while (obj) {
+ index = obj->internalClass->find(name);
+ if (index != UINT_MAX) {
+ *attrs = obj->internalClass->propertyData.at(index);
+ return obj->memberData + index;
+ }
+
+ obj = obj->prototype;
+ }
+ return 0;
+}
+
+
+void Lookup::getterGeneric(QV4::Lookup *l, QV4::Value *result, const QV4::Value &object)
+{
+ if (Object *o = object.asObject()) {
+ o->getLookup(l, result);
+ return;
+ }
+
+ Value res;
+ if (Managed *m = object.asManaged()) {
+ res = m->get(l->name);
+ } else {
+ ExecutionContext *ctx = l->name->engine()->current;
+ Object *o = __qmljs_convert_to_object(ctx, object);
+ res = o->get(l->name);
+ }
+ if (result)
+ *result = res;
+}
+
+void Lookup::getter0(Lookup *l, Value *result, const Value &object)
+{
+ if (Object *o = object.asObject()) {
+ if (l->classList[0] == o->internalClass) {
+ if (result)
+ *result = o->memberData[l->index].value;
+ return;
+ }
+ }
+ l->getter = getterGeneric;
+ getterGeneric(l, result, object);
+}
+
+void Lookup::getter1(Lookup *l, Value *result, const Value &object)
+{
+ if (Object *o = object.asObject()) {
+ if (l->classList[0] == o->internalClass &&
+ l->classList[1] == o->prototype->internalClass) {
+ if (result)
+ *result = o->prototype->memberData[l->index].value;
+ return;
+ }
+ }
+ l->getter = getterGeneric;
+ getterGeneric(l, result, object);
+}
+
+void Lookup::getter2(Lookup *l, Value *result, const Value &object)
+{
+ if (Object *o = object.asObject()) {
+ if (l->classList[0] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[1] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[2] == o->internalClass) {
+ if (result)
+ *result = o->memberData[l->index].value;
+ return;
+ }
+ }
+ }
+ }
+ l->getter = getterGeneric;
+ getterGeneric(l, result, object);
+}
+
+void Lookup::getterAccessor0(Lookup *l, Value *result, const Value &object)
+{
+ if (Object *o = object.asObject()) {
+ if (l->classList[0] == o->internalClass) {
+ Value res;
+ FunctionObject *getter = o->memberData[l->index].getter();
+ if (!getter)
+ res = Value::undefinedValue();
+ else
+ res = getter->call(object, 0, 0);
+ if (result)
+ *result = res;
+ return;
+ }
+ }
+ l->getter = getterGeneric;
+ getterGeneric(l, result, object);
+}
+
+void Lookup::getterAccessor1(Lookup *l, Value *result, const Value &object)
+{
+ if (Object *o = object.asObject()) {
+ if (l->classList[0] == o->internalClass &&
+ l->classList[1] == o->prototype->internalClass) {
+ Value res;
+ FunctionObject *getter = o->prototype->memberData[l->index].getter();
+ if (!getter)
+ res = Value::undefinedValue();
+ else
+ res = getter->call(object, 0, 0);
+ if (result)
+ *result = res;
+ return;
+ }
+ }
+ l->getter = getterGeneric;
+ getterGeneric(l, result, object);
+}
+
+void Lookup::getterAccessor2(Lookup *l, Value *result, const Value &object)
+{
+ if (Object *o = object.asObject()) {
+ if (l->classList[0] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[1] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[2] == o->internalClass) {
+ Value res;
+ FunctionObject *getter = o->memberData[l->index].getter();
+ if (!getter)
+ res = Value::undefinedValue();
+ else
+ res = getter->call(object, 0, 0);
+ if (result)
+ *result = res;
+ return;
+ }
+ }
+ }
+ }
+ l->getter = getterGeneric;
+ getterGeneric(l, result, object);
+}
+
+
+void Lookup::globalGetterGeneric(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ PropertyAttributes attrs;
+ Property *p = l->lookup(o, &attrs);
+ if (p) {
+ if (attrs.isData()) {
+ if (l->level == 0)
+ l->globalGetter = globalGetter0;
+ else if (l->level == 1)
+ l->globalGetter = globalGetter1;
+ else if (l->level == 2)
+ l->globalGetter = globalGetter2;
+ *result = p->value;
+ return;
+ } else {
+ if (l->level == 0)
+ l->globalGetter = globalGetterAccessor0;
+ else if (l->level == 1)
+ l->globalGetter = globalGetterAccessor1;
+ else if (l->level == 2)
+ l->globalGetter = globalGetterAccessor2;
+ Value res = o->getValue(p, attrs);
+ if (result)
+ *result = res;
+ return;
+ }
+ }
+ ctx->throwReferenceError(Value::fromString(l->name));
+}
+
+void Lookup::globalGetter0(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ if (l->classList[0] == o->internalClass) {
+ *result = o->memberData[l->index].value;
+ return;
+ }
+ l->globalGetter = globalGetterGeneric;
+ globalGetterGeneric(l, ctx, result);
+}
+
+void Lookup::globalGetter1(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ if (l->classList[0] == o->internalClass &&
+ l->classList[1] == o->prototype->internalClass) {
+ *result = o->prototype->memberData[l->index].value;
+ return;
+ }
+ l->globalGetter = globalGetterGeneric;
+ globalGetterGeneric(l, ctx, result);
+}
+
+void Lookup::globalGetter2(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ if (l->classList[0] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[1] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[2] == o->internalClass) {
+ *result = o->prototype->memberData[l->index].value;
+ return;
+ }
+ }
+ }
+ l->globalGetter = globalGetterGeneric;
+ globalGetterGeneric(l, ctx, result);
+}
+
+void Lookup::globalGetterAccessor0(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ if (l->classList[0] == o->internalClass) {
+ FunctionObject *getter = o->memberData[l->index].getter();
+ if (!getter)
+ *result = Value::undefinedValue();
+ else
+ *result = getter->call(Value::undefinedValue(), 0, 0);
+ return;
+ }
+ l->globalGetter = globalGetterGeneric;
+ globalGetterGeneric(l, ctx, result);
+}
+
+void Lookup::globalGetterAccessor1(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ if (l->classList[0] == o->internalClass &&
+ l->classList[1] == o->prototype->internalClass) {
+ FunctionObject *getter = o->prototype->memberData[l->index].getter();
+ if (!getter)
+ *result = Value::undefinedValue();
+ else
+ *result = getter->call(Value::undefinedValue(), 0, 0);
+ return;
+ }
+ l->globalGetter = globalGetterGeneric;
+ globalGetterGeneric(l, ctx, result);
+}
+
+void Lookup::globalGetterAccessor2(Lookup *l, ExecutionContext *ctx, Value *result)
+{
+ Object *o = ctx->engine->globalObject;
+ if (l->classList[0] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[1] == o->internalClass) {
+ o = o->prototype;
+ if (l->classList[2] == o->internalClass) {
+ FunctionObject *getter = o->memberData[l->index].getter();
+ if (!getter)
+ *result = Value::undefinedValue();
+ else
+ *result = getter->call(Value::undefinedValue(), 0, 0);
+ return;
+ }
+ }
+ }
+ l->globalGetter = globalGetterGeneric;
+ globalGetterGeneric(l, ctx, result);
+}
+
+void Lookup::setterGeneric(Lookup *l, const Value &object, const Value &value)
+{
+ Object *o = object.asObject();
+ if (!o) {
+ o = __qmljs_convert_to_object(l->name->engine()->current, object);
+ o->put(l->name, value);
+ return;
+ }
+ o->setLookup(l, value);
+}
+
+void Lookup::setter0(Lookup *l, const Value &object, const Value &value)
+{
+ Object *o = object.asObject();
+ if (o && o->internalClass == l->classList[0]) {
+ o->memberData[l->index].value = value;
+ return;
+ }
+
+ l->setter = setterGeneric;
+ setterGeneric(l, object, value);
+}
+
+QT_END_NAMESPACE
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