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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
****************************************************************************/
#include "findusrforcursoraction.h"
#include "findcursorusr.h"
#include <clang/AST/AST.h>
#include <clang/AST/ASTConsumer.h>
#include <clang/AST/ASTContext.h>
#include <algorithm>
#include <vector>
namespace ClangBackEnd {
namespace {
std::vector<USRName> collectConstructorUnifiedSymbolResolutions(const clang::CXXRecordDecl *declarations)
{
std::vector<USRName> unifiedSymbolResolutions;
const auto constructorDeclarations = declarations->getDefinition()->ctors();
std::transform(constructorDeclarations.begin(),
constructorDeclarations.end(),
std::back_inserter(unifiedSymbolResolutions),
USROfDeclaration);
return unifiedSymbolResolutions;
}
void addUnifiedSymbolResolutionsForDeclaration(const std::vector<const clang::NamedDecl *> &declarations,
std::vector<USRName> &usrs)
{
std::transform(declarations.begin(),
declarations.end(),
std::back_inserter(usrs),
[&] (const clang::NamedDecl *declaration) {
return USROfDeclaration(declaration);
});
}
}
class FindDeclarationsConsumer : public clang::ASTConsumer
{
public:
FindDeclarationsConsumer(Utils::SmallString &symbolName,
std::vector<USRName> &unifiedSymbolResolutions,
uint line,
uint column)
: m_symbolName(symbolName),
m_unifiedSymbolResolutions(unifiedSymbolResolutions),
m_line(line),
m_column(column)
{
}
void HandleTranslationUnit(clang::ASTContext &astContext) override {
const auto &sourceManager = astContext.getSourceManager();
const auto cursorSourceLocation = sourceManager.translateLineCol(sourceManager.getMainFileID(),
m_line,
m_column);
if (cursorSourceLocation.isValid())
collectUnifiedSymbolResoltions(astContext, cursorSourceLocation);
}
void collectUnifiedSymbolResoltions(clang::ASTContext &astContext,
const clang::SourceLocation &cursorSourceLocation)
{
const auto foundDeclarations = namedDeclarationsAt(astContext, cursorSourceLocation);
if (!foundDeclarations.empty()) {
const auto firstFoundDeclaration = foundDeclarations.front();
if (const auto *constructorDecl = clang::dyn_cast<clang::CXXConstructorDecl>(firstFoundDeclaration)) {
const clang::CXXRecordDecl *foundDeclarationParent = constructorDecl->getParent();
m_unifiedSymbolResolutions = collectConstructorUnifiedSymbolResolutions(foundDeclarationParent);
} else if (const auto *destructorDecl = clang::dyn_cast<clang::CXXDestructorDecl>(firstFoundDeclaration)) {
const clang::CXXRecordDecl *foundDeclarationParent = destructorDecl->getParent();
m_unifiedSymbolResolutions = collectConstructorUnifiedSymbolResolutions(foundDeclarationParent);
} else if (const auto *recordDeclaration = clang::dyn_cast<clang::CXXRecordDecl>(firstFoundDeclaration)) {
m_unifiedSymbolResolutions = collectConstructorUnifiedSymbolResolutions(recordDeclaration);
}
addUnifiedSymbolResolutionsForDeclaration(foundDeclarations, m_unifiedSymbolResolutions);
m_symbolName = firstFoundDeclaration->getNameAsString();
}
}
private:
Utils::SmallString &m_symbolName;
std::vector<USRName> &m_unifiedSymbolResolutions;
uint m_line;
uint m_column;
};
std::unique_ptr<clang::ASTConsumer>
USRFindingAction::newASTConsumer() {
return std::make_unique<FindDeclarationsConsumer>(m_symbolName, m_unifiedSymbolResolutions, m_line, m_column);
}
} // namespace ClangBackEnd
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