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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 "removeuiobjectmembervisitor.h"
#include <qmljs/parser/qmljsast_p.h>
#include <QDebug>
using namespace QmlDesigner;
using namespace QmlDesigner::Internal;
RemoveUIObjectMemberVisitor::RemoveUIObjectMemberVisitor(TextModifier &modifier,
quint32 objectLocation):
QMLRewriter(modifier),
objectLocation(objectLocation)
{
}
bool RemoveUIObjectMemberVisitor::preVisit(QmlJS::AST::Node *ast)
{
parents.push(ast);
return true;
}
void RemoveUIObjectMemberVisitor::postVisit(QmlJS::AST::Node *)
{
parents.pop();
}
bool RemoveUIObjectMemberVisitor::visit(QmlJS::AST::UiPublicMember *ast) { return visitObjectMember(ast); }
bool RemoveUIObjectMemberVisitor::visit(QmlJS::AST::UiObjectDefinition *ast) { return visitObjectMember(ast); }
bool RemoveUIObjectMemberVisitor::visit(QmlJS::AST::UiSourceElement *ast) { return visitObjectMember(ast); }
bool RemoveUIObjectMemberVisitor::visit(QmlJS::AST::UiObjectBinding *ast) { return visitObjectMember(ast); }
bool RemoveUIObjectMemberVisitor::visit(QmlJS::AST::UiScriptBinding *ast) { return visitObjectMember(ast); }
bool RemoveUIObjectMemberVisitor::visit(QmlJS::AST::UiArrayBinding *ast) { return visitObjectMember(ast); }
// FIXME: duplicate code in the QmlJS::Rewriter class, remove this
bool RemoveUIObjectMemberVisitor::visitObjectMember(QmlJS::AST::UiObjectMember *ast)
{
const quint32 memberStart = ast->firstSourceLocation().offset;
if (memberStart == objectLocation) {
// found it
int start = objectLocation;
int end = ast->lastSourceLocation().end();
if (QmlJS::AST::UiArrayBinding *parentArray = containingArray())
extendToLeadingOrTrailingComma(parentArray, ast, start, end);
else
includeSurroundingWhitespace(start, end);
includeLeadingEmptyLine(start);
replace(start, end - start, QStringLiteral(""));
setDidRewriting(true);
return false;
} else if (ast->lastSourceLocation().end() <= objectLocation) {
// optimization: if the location of the object-to-be-removed is not inside the current member, skip any children
return false;
} else {
// only visit children if the rewriting isn't done yet.
return !didRewriting();
}
}
QmlJS::AST::UiArrayBinding *RemoveUIObjectMemberVisitor::containingArray() const
{
if (parents.size() > 2) {
if (QmlJS::AST::cast<QmlJS::AST::UiArrayMemberList*>(parents[parents.size() - 2]))
return QmlJS::AST::cast<QmlJS::AST::UiArrayBinding*>(parents[parents.size() - 3]);
}
return nullptr;
}
// FIXME: duplicate code in the QmlJS::Rewriter class, remove this
void RemoveUIObjectMemberVisitor::extendToLeadingOrTrailingComma(QmlJS::AST::UiArrayBinding *parentArray,
QmlJS::AST::UiObjectMember *ast,
int &start,
int &end) const
{
QmlJS::AST::UiArrayMemberList *currentMember = nullptr;
for (QmlJS::AST::UiArrayMemberList *it = parentArray->members; it; it = it->next) {
if (it->member == ast) {
currentMember = it;
break;
}
}
if (!currentMember)
return;
if (currentMember->commaToken.isValid()) {
// leading comma
start = currentMember->commaToken.offset;
if (includeSurroundingWhitespace(start, end))
--end;
} else if (currentMember->next && currentMember->next->commaToken.isValid()) {
// trailing comma
end = currentMember->next->commaToken.end();
includeSurroundingWhitespace(start, end);
} else {
// array with 1 element, so remove the complete binding
start = parentArray->firstSourceLocation().offset;
end = parentArray->lastSourceLocation().end();
includeSurroundingWhitespace(start, end);
}
}
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