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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "moveobjectbeforeobjectvisitor.h"
#include <qmljs/parser/qmljsast_p.h>
using namespace QmlDesigner::Internal;
using namespace QmlDesigner;
MoveObjectBeforeObjectVisitor::MoveObjectBeforeObjectVisitor(TextModifier &modifier,
quint32 movingObjectLocation,
bool inDefaultProperty):
QMLRewriter(modifier),
movingObjectLocation(movingObjectLocation),
inDefaultProperty(inDefaultProperty),
toEnd(true),
beforeObjectLocation(0)
{}
MoveObjectBeforeObjectVisitor::MoveObjectBeforeObjectVisitor(TextModifier &modifier,
quint32 movingObjectLocation,
quint32 beforeObjectLocation,
bool inDefaultProperty):
QMLRewriter(modifier),
movingObjectLocation(movingObjectLocation),
inDefaultProperty(inDefaultProperty),
toEnd(false),
beforeObjectLocation(beforeObjectLocation)
{}
bool MoveObjectBeforeObjectVisitor::operator ()(QmlJS::AST::UiProgram *ast)
{
movingObject = nullptr;
beforeObject = nullptr;
movingObjectParents.clear();
QMLRewriter::operator ()(ast);
if (foundEverything())
doMove();
return didRewriting();
}
bool MoveObjectBeforeObjectVisitor::preVisit(QmlJS::AST::Node *ast)
{ if (ast) parents.push(ast); return true; }
void MoveObjectBeforeObjectVisitor::postVisit(QmlJS::AST::Node *ast)
{ if (ast) parents.pop(); }
bool MoveObjectBeforeObjectVisitor::visit(QmlJS::AST::UiObjectDefinition *ast)
{
if (foundEverything())
return false;
const quint32 start = ast->firstSourceLocation().offset;
if (start == movingObjectLocation) {
movingObject = ast;
movingObjectParents = parents;
movingObjectParents.pop();
} else if (!toEnd && start == beforeObjectLocation) {
beforeObject = ast;
}
if (movingObjectLocation < start)
return false;
else if (!toEnd && beforeObjectLocation < start)
return false;
else if (foundEverything())
return false;
else
return true;
}
void MoveObjectBeforeObjectVisitor::doMove()
{
Q_ASSERT(movingObject);
Q_ASSERT(!movingObjectParents.isEmpty());
TextModifier::MoveInfo moveInfo;
QmlJS::AST::Node *parent = movingObjectParent();
QmlJS::AST::UiArrayMemberList *arrayMember = nullptr, *otherArrayMember = nullptr;
QString separator;
if (!inDefaultProperty) {
auto initializer = QmlJS::AST::cast<QmlJS::AST::UiArrayBinding*>(parent);
Q_ASSERT(initializer);
otherArrayMember = nullptr;
for (QmlJS::AST::UiArrayMemberList *cur = initializer->members; cur; cur = cur->next) {
if (cur->member == movingObject) {
arrayMember = cur;
if (cur->next)
otherArrayMember = cur->next;
break;
}
otherArrayMember = cur;
}
Q_ASSERT(arrayMember && otherArrayMember);
separator = QStringLiteral(",");
}
moveInfo.objectStart = movingObject->firstSourceLocation().offset;
moveInfo.objectEnd = movingObject->lastSourceLocation().end();
int start = moveInfo.objectStart;
int end = moveInfo.objectEnd;
if (!inDefaultProperty) {
if (arrayMember->commaToken.isValid())
start = arrayMember->commaToken.begin();
else
end = otherArrayMember->commaToken.end();
}
includeSurroundingWhitespace(start, end);
moveInfo.leadingCharsToRemove = moveInfo.objectStart - start;
moveInfo.trailingCharsToRemove = end - moveInfo.objectEnd;
if (beforeObject) {
moveInfo.destination = beforeObject->firstSourceLocation().offset;
int dummy = -1;
includeSurroundingWhitespace(moveInfo.destination, dummy);
moveInfo.prefixToInsert = QString(moveInfo.leadingCharsToRemove, QLatin1Char(' '));
moveInfo.suffixToInsert = separator + QStringLiteral("\n\n");
} else {
const QmlJS::SourceLocation insertionPoint = lastParentLocation();
Q_ASSERT(insertionPoint.isValid());
moveInfo.destination = insertionPoint.offset;
int dummy = -1;
includeSurroundingWhitespace(moveInfo.destination, dummy);
moveInfo.prefixToInsert = separator + QString(moveInfo.leadingCharsToRemove, QLatin1Char(' '));
moveInfo.suffixToInsert = QStringLiteral("\n");
}
move(moveInfo);
setDidRewriting(true);
}
QmlJS::AST::Node *MoveObjectBeforeObjectVisitor::movingObjectParent() const
{
if (movingObjectParents.size() > 1)
return movingObjectParents.at(movingObjectParents.size() - 2);
else
return nullptr;
}
QmlJS::SourceLocation MoveObjectBeforeObjectVisitor::lastParentLocation() const
{
dump(movingObjectParents);
QmlJS::AST::Node *parent = movingObjectParent();
if (auto initializer = QmlJS::AST::cast<QmlJS::AST::UiObjectInitializer*>(parent))
return initializer->rbraceToken;
else if (auto initializer = QmlJS::AST::cast<QmlJS::AST::UiArrayBinding*>(parent))
return initializer->rbracketToken;
else
return QmlJS::SourceLocation();
}
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