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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "moveobjectvisitor.h"
#include <qmljs/parser/qmljsast_p.h>
#include <QDebug>
using namespace QmlJS;
using namespace QmlJS::AST;
namespace QmlDesigner {
namespace Internal {
class Inserter: public QMLRewriter
{
public:
Inserter(TextModifier &modifier,
quint32 targetParentObjectLocation,
const PropertyName &targetPropertyName,
bool targetIsArrayBinding,
TextModifier::MoveInfo moveInfo,
const PropertyNameList &propertyOrder):
QMLRewriter(modifier),
targetParentObjectLocation(targetParentObjectLocation),
targetPropertyName(targetPropertyName),
targetIsArrayBinding(targetIsArrayBinding),
moveInfo(moveInfo),
propertyOrder(propertyOrder)
{}
protected:
bool visit(UiObjectBinding *ast) override
{
if (didRewriting())
return false;
if (ast->qualifiedTypeNameId->identifierToken.offset == targetParentObjectLocation)
insertInto(ast->initializer);
return !didRewriting();
}
bool visit(UiObjectDefinition *ast) override
{
if (didRewriting())
return false;
if (ast->firstSourceLocation().offset == targetParentObjectLocation)
insertInto(ast->initializer);
return !didRewriting();
}
private:
void insertInto(UiObjectInitializer *ast)
{
if (targetPropertyName.isEmpty()) {
// insert as UiObjectDefinition:
UiObjectMemberList *insertAfter = searchMemberToInsertAfter(ast->members, propertyOrder);
if (insertAfter && insertAfter->member) {
moveInfo.destination = insertAfter->member->lastSourceLocation().end();
moveInfo.prefixToInsert = QStringLiteral("\n\n");
} else {
moveInfo.destination = ast->lbraceToken.end();
moveInfo.prefixToInsert = QStringLiteral("\n");
}
move(moveInfo);
setDidRewriting(true);
return;
}
// see if we need to insert into an UiArrayBinding:
for (UiObjectMemberList *iter = ast->members; iter; iter = iter->next) {
UiObjectMember *member = iter->member;
if (auto arrayBinding = cast<UiArrayBinding*>(member)) {
if (toString(arrayBinding->qualifiedId) == QString::fromUtf8(targetPropertyName)) {
appendToArray(arrayBinding);
setDidRewriting(true);
return;
}
}
}
{ // insert (create) a UiObjectBinding:
UiObjectMemberList *insertAfter = searchMemberToInsertAfter(ast->members, targetPropertyName, propertyOrder);
moveInfo.prefixToInsert = QStringLiteral("\n") + QString::fromUtf8(targetPropertyName) + (targetIsArrayBinding ? QStringLiteral(": [") : QStringLiteral(": "));
moveInfo.suffixToInsert = targetIsArrayBinding ? QStringLiteral("\n]") : QStringLiteral("");
if (insertAfter && insertAfter->member)
moveInfo.destination = insertAfter->member->lastSourceLocation().end();
else
moveInfo.destination = ast->lbraceToken.end();
move(moveInfo);
setDidRewriting(true);
}
}
void appendToArray(UiArrayBinding *ast)
{
UiObjectMember *lastMember = nullptr;
for (UiArrayMemberList *iter = ast->members; iter; iter = iter->next) {
if (iter->member)
lastMember = iter->member;
}
if (!lastMember)
Q_ASSERT(!"Invalid QML: empty array found.");
moveInfo.destination = lastMember->lastSourceLocation().end();
moveInfo.prefixToInsert = QStringLiteral(",\n");
moveInfo.suffixToInsert = QStringLiteral("\n");
move(moveInfo);
}
private:
quint32 targetParentObjectLocation;
PropertyName targetPropertyName;
bool targetIsArrayBinding;
TextModifier::MoveInfo moveInfo;
PropertyNameList propertyOrder;
};
MoveObjectVisitor::MoveObjectVisitor(TextModifier &modifier,
quint32 objectLocation,
const PropertyName &targetPropertyName,
bool targetIsArrayBinding,
quint32 targetParentObjectLocation,
const PropertyNameList &propertyOrder):
QMLRewriter(modifier),
objectLocation(objectLocation),
targetPropertyName(targetPropertyName),
targetIsArrayBinding(targetIsArrayBinding),
targetParentObjectLocation(targetParentObjectLocation),
propertyOrder(propertyOrder)
{
}
bool MoveObjectVisitor::operator()(UiProgram *ast)
{
program = ast;
return QMLRewriter::operator()(ast);
}
bool MoveObjectVisitor::visit(UiArrayBinding *ast)
{
if (didRewriting())
return false;
UiArrayMemberList *currentMember = nullptr;
for (UiArrayMemberList *it = ast->members; it; it = it->next) {
if (it->member->firstSourceLocation().offset == objectLocation) {
currentMember = it;
break;
}
}
if (currentMember) {
TextModifier::MoveInfo moveInfo;
moveInfo.objectStart = currentMember->member->firstSourceLocation().begin();
moveInfo.objectEnd = currentMember->member->lastSourceLocation().end();
if (currentMember == ast->members && !currentMember->next) {
// array with 1 element, which is moved away, so also remove the array binding
int start = ast->firstSourceLocation().offset;
int end = ast->lastSourceLocation().end();
includeSurroundingWhitespace(start, end);
moveInfo.leadingCharsToRemove = objectLocation - start;
moveInfo.trailingCharsToRemove = end - moveInfo.objectEnd;
} else if (currentMember->next) {
// we're not the last element, so remove the trailing comma too
Q_ASSERT(currentMember->next->commaToken.isValid());
int start = objectLocation;
int end = currentMember->next->commaToken.end();
includeSurroundingWhitespace(start, end);
moveInfo.leadingCharsToRemove = objectLocation - start;
moveInfo.trailingCharsToRemove = end - moveInfo.objectEnd;
} else {
// we are the last member, but not the only member, so remove the preceding comma, too
Q_ASSERT(currentMember->commaToken.isValid());
int start = currentMember->commaToken.offset;
int end = moveInfo.objectEnd;
includeSurroundingWhitespace(start, end);
moveInfo.leadingCharsToRemove = objectLocation - start;
moveInfo.trailingCharsToRemove = end - moveInfo.objectEnd;
}
doMove(moveInfo);
}
return !didRewriting();
}
bool MoveObjectVisitor::visit(UiObjectBinding *ast)
{
if (didRewriting())
return false;
if (ast->qualifiedTypeNameId->identifierToken.offset == objectLocation) {
TextModifier::MoveInfo moveInfo;
moveInfo.objectStart = objectLocation;
moveInfo.objectEnd = ast->lastSourceLocation().end();
// remove leading indentation and property name:
int start = ast->firstSourceLocation().offset;
int end = moveInfo.objectEnd;
includeSurroundingWhitespace(start, end);
includeLeadingEmptyLine(start);
moveInfo.leadingCharsToRemove = objectLocation - start;
// remove trailing indentation
moveInfo.trailingCharsToRemove = end - moveInfo.objectEnd;
doMove(moveInfo);
}
return !didRewriting();
}
bool MoveObjectVisitor::visit(UiObjectDefinition *ast)
{
if (didRewriting())
return false;
if (ast->qualifiedTypeNameId->identifierToken.offset == objectLocation) {
TextModifier::MoveInfo moveInfo;
moveInfo.objectStart = objectLocation;
moveInfo.objectEnd = ast->lastSourceLocation().end();
// remove leading indentation:
int start = objectLocation;
int end = moveInfo.objectEnd;
includeSurroundingWhitespace(start, end);
includeLeadingEmptyLine(start);
moveInfo.leadingCharsToRemove = objectLocation - start;
moveInfo.trailingCharsToRemove = end - moveInfo.objectEnd;
doMove(moveInfo);
}
return !didRewriting();
}
void MoveObjectVisitor::doMove(const TextModifier::MoveInfo &moveInfo)
{
if (moveInfo.objectEnd > moveInfo.objectStart) {
Inserter findTargetAndInsert(*textModifier(),
targetParentObjectLocation,
targetPropertyName,
targetIsArrayBinding,
moveInfo,
propertyOrder);
setDidRewriting(findTargetAndInsert(program));
}
}
} // namespace Internal
} // namespace QmlDesigner
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