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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "cppquickfixhelpers.h"
#include "../cppcodestylesettings.h"
#include "../cppprojectfile.h"
#include "../includeutils.h"
#include "cppquickfixassistant.h"
#include <cplusplus/CppRewriter.h>
#include <cplusplus/Overview.h>
#include <cplusplus/TypeOfExpression.h>
using namespace CPlusPlus;
using namespace Utils;
namespace CppEditor::Internal {
void insertNewIncludeDirective(
const QString &include,
CppRefactoringFilePtr file,
const Document::Ptr &cppDocument,
ChangeSet &changes)
{
// Find optimal position
unsigned newLinesToPrepend = 0;
unsigned newLinesToAppend = 0;
const int insertLine = lineForNewIncludeDirective(
file->filePath(),
file->document(),
cppDocument,
IgnoreMocIncludes,
AutoDetect,
include,
&newLinesToPrepend,
&newLinesToAppend);
QTC_ASSERT(insertLine >= 1, return);
const int insertPosition = file->position(insertLine, 1);
QTC_ASSERT(insertPosition >= 0, return);
// Construct text to insert
const QString includeLine = QLatin1String("#include ") + include + QLatin1Char('\n');
QString prependedNewLines, appendedNewLines;
while (newLinesToAppend--)
appendedNewLines += QLatin1String("\n");
while (newLinesToPrepend--)
prependedNewLines += QLatin1String("\n");
const QString textToInsert = prependedNewLines + includeLine + appendedNewLines;
// Insert
changes.insert(insertPosition, textToInsert);
}
ClassSpecifierAST *astForClassOperations(const CppQuickFixInterface &interface)
{
const QList<AST *> &path = interface.path();
if (path.isEmpty())
return nullptr;
if (const auto classSpec = path.last()->asClassSpecifier()) // Cursor inside class decl?
return classSpec;
// Cursor on a class name?
if (path.size() < 2)
return nullptr;
const SimpleNameAST * const nameAST = path.at(path.size() - 1)->asSimpleName();
if (!nameAST || !interface.isCursorOn(nameAST))
return nullptr;
if (const auto classSpec = path.at(path.size() - 2)->asClassSpecifier())
return classSpec;
return nullptr;
}
bool nameIncludesOperatorName(const Name *name)
{
return name->asOperatorNameId()
|| (name->asQualifiedNameId() && name->asQualifiedNameId()->name()->asOperatorNameId());
}
QString inlinePrefix(const FilePath &targetFile, const std::function<bool()> &extraCondition)
{
if (ProjectFile::isHeader(ProjectFile::classify(targetFile))
&& (!extraCondition || extraCondition())) {
return "inline ";
}
return {};
}
Class *isMemberFunction(const CPlusPlus::LookupContext &context, CPlusPlus::Function *function)
{
QTC_ASSERT(function, return nullptr);
Scope *enclosingScope = function->enclosingScope();
while (!(enclosingScope->asNamespace() || enclosingScope->asClass()))
enclosingScope = enclosingScope->enclosingScope();
QTC_ASSERT(enclosingScope != nullptr, return nullptr);
const Name *functionName = function->name();
if (!functionName)
return nullptr;
if (!functionName->asQualifiedNameId())
return nullptr; // trying to add a declaration for a global function
const QualifiedNameId *q = functionName->asQualifiedNameId();
if (!q->base())
return nullptr;
if (ClassOrNamespace *binding = context.lookupType(q->base(), enclosingScope)) {
const QList<Symbol *> symbols = binding->symbols();
for (Symbol *s : symbols) {
if (Class *matchingClass = s->asClass())
return matchingClass;
}
}
return nullptr;
}
CPlusPlus::Namespace *isNamespaceFunction(
const CPlusPlus::LookupContext &context, CPlusPlus::Function *function)
{
QTC_ASSERT(function, return nullptr);
if (isMemberFunction(context, function))
return nullptr;
Scope *enclosingScope = function->enclosingScope();
while (!(enclosingScope->asNamespace() || enclosingScope->asClass()))
enclosingScope = enclosingScope->enclosingScope();
QTC_ASSERT(enclosingScope != nullptr, return nullptr);
const Name *functionName = function->name();
if (!functionName)
return nullptr;
// global namespace
if (!functionName->asQualifiedNameId()) {
const QList<Symbol *> symbols = context.globalNamespace()->symbols();
for (Symbol *s : symbols) {
if (Namespace *matchingNamespace = s->asNamespace())
return matchingNamespace;
}
return nullptr;
}
const QualifiedNameId *q = functionName->asQualifiedNameId();
if (!q->base())
return nullptr;
if (ClassOrNamespace *binding = context.lookupType(q->base(), enclosingScope)) {
const QList<Symbol *> symbols = binding->symbols();
for (Symbol *s : symbols) {
if (Namespace *matchingNamespace = s->asNamespace())
return matchingNamespace;
}
}
return nullptr;
}
QString nameString(const CPlusPlus::NameAST *name)
{
return CppCodeStyleSettings::currentProjectCodeStyleOverview().prettyName(name->name);
}
CPlusPlus::FullySpecifiedType typeOfExpr(
const ExpressionAST *expr,
const CppRefactoringFilePtr &file,
const Snapshot &snapshot,
const LookupContext &context)
{
TypeOfExpression typeOfExpression;
typeOfExpression.init(file->cppDocument(), snapshot, context.bindings());
Scope *scope = file->scopeAt(expr->firstToken());
const QList<LookupItem> result
= typeOfExpression(file->textOf(expr).toUtf8(), scope, TypeOfExpression::Preprocess);
if (result.isEmpty())
return {};
SubstitutionEnvironment env;
env.setContext(context);
env.switchScope(result.first().scope());
ClassOrNamespace *con = typeOfExpression.context().lookupType(scope);
if (!con)
con = typeOfExpression.context().globalNamespace();
UseMinimalNames q(con);
env.enter(&q);
Control *control = context.bindings()->control().get();
return rewriteType(result.first().type(), &env, control);
}
const QStringList magicQObjectFunctions()
{
static QStringList list{"metaObject", "qt_metacast", "qt_metacall", "qt_static_metacall"};
return list;
}
} // namespace CppEditor::Internal
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