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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 "cpplocalsymbols_test.h"
#include "cpplocalsymbols.h"
#include "cppsemanticinfo.h"
#include <cplusplus/Overview.h>
#include <utils/algorithm.h>
#include <QtTest>
using namespace Utils;
namespace {
class FindFirstFunctionDefinition: protected CPlusPlus::ASTVisitor
{
public:
explicit FindFirstFunctionDefinition(CPlusPlus::TranslationUnit *translationUnit)
: ASTVisitor(translationUnit)
{}
CPlusPlus::FunctionDefinitionAST *operator()()
{
accept(translationUnit()->ast());
return m_definition;
}
private:
bool preVisit(CPlusPlus::AST *ast) override
{
if (CPlusPlus::FunctionDefinitionAST *f = ast->asFunctionDefinition()) {
m_definition = f;
return false;
}
return true;
}
private:
CPlusPlus::FunctionDefinitionAST *m_definition = nullptr;
};
struct Result
{
Result() = default;
Result(const QByteArray &name, unsigned line, unsigned column, unsigned length)
: name(name), line(line), column(column), length(length)
{}
QByteArray name;
unsigned line = 0;
unsigned column = 0;
unsigned length = 0;
bool operator==(const Result &other) const
{
return name == other.name
&& line == other.line
&& column == other.column
&& length == other.length;
}
static Result fromHighlightingResult(const CPlusPlus::Symbol *symbol,
TextEditor::HighlightingResult result)
{
const QByteArray name = CPlusPlus::Overview().prettyName(symbol->name()).toLatin1();
return Result(name, result.line, result.column, result.length);
}
static QList<Result> fromLocalUses(CppEditor::SemanticInfo::LocalUseMap localUses)
{
QList<Result> result;
for (auto it = localUses.cbegin(), end = localUses.cend(); it != end; ++it) {
const CPlusPlus::Symbol *symbol = it.key();
const QList<CppEditor::SemanticInfo::Use> &uses = it.value();
for (const CppEditor::SemanticInfo::Use &use : uses)
result << fromHighlightingResult(symbol, use);
}
Utils::sort(result, [](const Result &r1, const Result &r2) -> bool {
if (r1.line == r2.line)
return r1.column < r2.column;
return r1.line < r2.line;
});
return result;
}
};
} // anonymous namespace
Q_DECLARE_METATYPE(Result)
QT_BEGIN_NAMESPACE
namespace QTest {
template<>
char *toString(const Result &result)
{
QByteArray ba = "Result(";
ba += "_(\"" + result.name + "\"), ";
ba += QByteArray::number(result.line) + ", ";
ba += QByteArray::number(result.column) + ", ";
ba += QByteArray::number(result.length) + ")";
return qstrdup(ba.data());
}
}
QT_END_NAMESPACE
namespace CppEditor::Internal {
void LocalSymbolsTest::test_data()
{
QTest::addColumn<QByteArray>("source");
QTest::addColumn<QList<Result>>("expectedUses");
using _ = QByteArray;
QTest::newRow("basic")
<< _("int f(int arg)\n"
"{\n"
" int local;\n"
" g(&local);\n"
" return local + arg;\n"
"}\n")
<< (QList<Result>()
<< Result(_("arg"), 0, 10, 3)
<< Result(_("local"), 2, 9, 5)
<< Result(_("local"), 3, 8, 5)
<< Result(_("local"), 4, 12, 5)
<< Result(_("arg"), 4, 20, 3));
QTest::newRow("lambda")
<< _("void f()\n"
"{\n"
" auto func = [](int arg) { return arg; };\n"
" func(1);\n"
"}\n")
<< (QList<Result>()
<< Result(_("func"), 2, 10, 4)
<< Result(_("arg"), 2, 24, 3)
<< Result(_("arg"), 2, 38, 3)
<< Result(_("func"), 3, 5, 4));
}
void LocalSymbolsTest::test()
{
QFETCH(QByteArray, source);
QFETCH(QList<Result>, expectedUses);
CPlusPlus::Document::Ptr document =
CPlusPlus::Document::create(FilePath::fromPathPart(u"test.cpp"));
document->setUtf8Source(source);
document->check();
QVERIFY(document->diagnosticMessages().isEmpty());
QVERIFY(document->translationUnit());
QVERIFY(document->translationUnit()->ast());
QVERIFY(document->globalNamespace());
FindFirstFunctionDefinition find(document->translationUnit());
CPlusPlus::DeclarationAST *functionDefinition = find();
LocalSymbols localSymbols(document, functionDefinition);
const QList<Result> actualUses = Result::fromLocalUses(localSymbols.uses);
// for (const Result &result : actualUses)
// qDebug() << QTest::toString(result);
QCOMPARE(actualUses, expectedUses);
}
} // namespace CppEditor::Internal
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