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qt-creator/tests/auto/cplusplus/semantic/tst_semantic.cpp
Erik Verbruggen 19f1f6ca79 Added test for lambda function definitions. 
Change-Id: I2233aa98a07e9c23463d4bec0b09dcccb89deb58
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
2012-03-20 14:28:51 +01:00

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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include <QtTest>
#include <QtDebug>
#include <QTextDocument>
#include <QTextCursor>
#include <Control.h>
#include <Parser.h>
#include <AST.h>
#include <ASTVisitor.h>
#include <Bind.h>
#include <Scope.h>
#include <Symbols.h>
#include <CoreTypes.h>
#include <Names.h>
#include <Literals.h>
#include <DiagnosticClient.h>
#include <DeprecatedGenTemplateInstance.h>
#include <Overview.h>
#include <ExpressionUnderCursor.h>
#include <Names.h>
//TESTED_COMPONENT=src/libs/cplusplus
#define NO_PARSER_OR_SEMANTIC_ERROR_MESSAGES
using namespace CPlusPlus;
class tst_Semantic: public QObject
{
Q_OBJECT
QSharedPointer<Control> control;
public:
tst_Semantic()
: control(new Control)
{ control->setDiagnosticClient(&diag); }
TranslationUnit *parse(const QByteArray &source,
TranslationUnit::ParseMode mode,
bool enableObjc,
bool qtMocRun,
bool enableCxx11)
{
const StringLiteral *fileId = control->stringLiteral("<stdin>");
TranslationUnit *unit = new TranslationUnit(control.data(), fileId);
unit->setSource(source.constData(), source.length());
unit->setObjCEnabled(enableObjc);
unit->setQtMocRunEnabled(qtMocRun);
unit->setCxxOxEnabled(enableCxx11);
unit->parse(mode);
return unit;
}
class Document {
Q_DISABLE_COPY(Document)
public:
Document(TranslationUnit *unit)
: unit(unit)
, globals(unit->control()->newNamespace(0, 0))
, errorCount(0)
{ }
~Document()
{ }
void check()
{
QVERIFY(unit);
QVERIFY(unit->ast());
Bind bind(unit);
TranslationUnitAST *ast = unit->ast()->asTranslationUnit();
QVERIFY(ast);
bind(ast, globals);
}
TranslationUnit *unit;
Namespace *globals;
unsigned errorCount;
};
class Diagnostic: public DiagnosticClient {
public:
int errorCount;
Diagnostic()
: errorCount(0)
{ }
virtual void report(int /*level*/,
const StringLiteral *fileName,
unsigned line, unsigned column,
const char *format, va_list ap)
{
++errorCount;
#ifndef NO_PARSER_OR_SEMANTIC_ERROR_MESSAGES
qDebug() << fileName->chars()<<':'<<line<<':'<<column<<' '<<QString().vsprintf(format, ap);
#else
Q_UNUSED(fileName);
Q_UNUSED(line);
Q_UNUSED(column);
Q_UNUSED(format);
Q_UNUSED(ap);
#endif
}
};
Diagnostic diag;
QSharedPointer<Document> document(const QByteArray &source, bool enableObjc = false, bool qtMocRun = false, bool enableCxx11 = false)
{
diag.errorCount = 0; // reset the error count.
TranslationUnit *unit = parse(source, TranslationUnit::ParseTranlationUnit, enableObjc, qtMocRun, enableCxx11);
QSharedPointer<Document> doc(new Document(unit));
doc->check();
doc->errorCount = diag.errorCount;
return doc;
}
private slots:
void function_declaration_1();
void function_declaration_2();
void function_definition_1();
void nested_class_1();
void typedef_1();
void typedef_2();
void typedef_3();
void const_1();
void const_2();
void pointer_to_function_1();
void template_instance_1();
void expression_under_cursor_1();
void bracketed_expression_under_cursor_1();
void bracketed_expression_under_cursor_2();
void bracketed_expression_under_cursor_3();
void bracketed_expression_under_cursor_4();
void objcClass_1();
void objcSelector_1();
void objcSelector_2();
void q_enum_1();
void lambda_1();
void diagnostic_error();
};
void tst_Semantic::function_declaration_1()
{
QSharedPointer<Document> doc = document("void foo();");
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Declaration *decl = doc->globals->memberAt(0)->asDeclaration();
QVERIFY(decl);
FullySpecifiedType declTy = decl->type();
Function *funTy = declTy->asFunctionType();
QVERIFY(funTy);
QVERIFY(funTy->returnType()->isVoidType());
QCOMPARE(funTy->argumentCount(), 0U);
QVERIFY(decl->name()->isNameId());
const Identifier *funId = decl->name()->asNameId()->identifier();
QVERIFY(funId);
const QByteArray foo(funId->chars(), funId->size());
QCOMPARE(foo, QByteArray("foo"));
}
void tst_Semantic::function_declaration_2()
{
QSharedPointer<Document> doc = document("void foo(const QString &s);");
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Declaration *decl = doc->globals->memberAt(0)->asDeclaration();
QVERIFY(decl);
FullySpecifiedType declTy = decl->type();
Function *funTy = declTy->asFunctionType();
QVERIFY(funTy);
QVERIFY(funTy->returnType()->isVoidType());
QCOMPARE(funTy->argumentCount(), 1U);
// check the formal argument.
Argument *arg = funTy->argumentAt(0)->asArgument();
QVERIFY(arg);
QVERIFY(arg->name());
QVERIFY(! arg->hasInitializer());
// check the argument's name.
const Identifier *argNameId = arg->name()->asNameId();
QVERIFY(argNameId);
const Identifier *argId = argNameId->identifier();
QVERIFY(argId);
QCOMPARE(QByteArray(argId->chars(), argId->size()), QByteArray("s"));
// check the type of the formal argument
FullySpecifiedType argTy = arg->type();
QVERIFY(argTy->isReferenceType());
QVERIFY(argTy->asReferenceType()->elementType().isConst());
NamedType *namedTy = argTy->asReferenceType()->elementType()->asNamedType();
QVERIFY(namedTy);
QVERIFY(namedTy->name());
const Identifier *namedTypeId = namedTy->name()->asNameId()->identifier();
QVERIFY(namedTypeId);
QCOMPARE(QByteArray(namedTypeId->chars(), namedTypeId->size()),
QByteArray("QString"));
QVERIFY(decl->name()->isNameId());
const Identifier *funId = decl->name()->asNameId()->identifier();
QVERIFY(funId);
const QByteArray foo(funId->chars(), funId->size());
QCOMPARE(foo, QByteArray("foo"));
}
void tst_Semantic::function_definition_1()
{
QSharedPointer<Document> doc = document("void foo() {}");
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Function *funTy = doc->globals->memberAt(0)->asFunction();
QVERIFY(funTy);
QVERIFY(funTy->returnType()->isVoidType());
QCOMPARE(funTy->argumentCount(), 0U);
QVERIFY(funTy->name()->isNameId());
const Identifier *funId = funTy->name()->asNameId()->identifier();
QVERIFY(funId);
const QByteArray foo(funId->chars(), funId->size());
QCOMPARE(foo, QByteArray("foo"));
}
void tst_Semantic::nested_class_1()
{
QSharedPointer<Document> doc = document(
"class Object {\n"
" class Data;\n"
" Data *d;\n"
"};\n"
"class Object::Data {\n"
" Object *q;\n"
"};\n"
);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 2U);
Class *classObject = doc->globals->memberAt(0)->asClass();
QVERIFY(classObject);
QVERIFY(classObject->name());
const Identifier *classObjectNameId = classObject->name()->asNameId();
QVERIFY(classObjectNameId);
const Identifier *objectId = classObjectNameId->identifier();
QCOMPARE(QByteArray(objectId->chars(), objectId->size()), QByteArray("Object"));
QCOMPARE(classObject->baseClassCount(), 0U);
QCOMPARE(classObject->memberCount(), 2U);
Class *classObjectData = doc->globals->memberAt(1)->asClass();
QVERIFY(classObjectData);
QVERIFY(classObjectData->name());
const QualifiedNameId *q = classObjectData->name()->asQualifiedNameId();
QVERIFY(q);
QVERIFY(q->base());
QVERIFY(q->base()->asNameId());
QCOMPARE(q->base(), classObject->name());
QVERIFY(q->name());
QVERIFY(q->name()->asNameId());
QCOMPARE(doc->globals->find(q->base()->asNameId()->identifier()), classObject);
Declaration *decl = classObjectData->memberAt(0)->asDeclaration();
QVERIFY(decl);
PointerType *ptrTy = decl->type()->asPointerType();
QVERIFY(ptrTy);
NamedType *namedTy = ptrTy->elementType()->asNamedType();
QVERIFY(namedTy);
QVERIFY(namedTy->name()->asNameId());
QCOMPARE(namedTy->name()->asNameId()->identifier(), objectId);
}
void tst_Semantic::typedef_1()
{
QSharedPointer<Document> doc = document(
"typedef struct {\n"
" int x, y;\n"
"} Point;\n"
"int main() {\n"
" Point pt;\n"
" pt.x = 1;\n"
"}\n"
);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 3U);
Class *anonStruct = doc->globals->memberAt(0)->asClass();
QVERIFY(anonStruct);
QCOMPARE(anonStruct->memberCount(), 2U);
Declaration *typedefPointDecl = doc->globals->memberAt(1)->asDeclaration();
QVERIFY(typedefPointDecl);
QVERIFY(typedefPointDecl->isTypedef());
QCOMPARE(typedefPointDecl->type()->asClassType(), anonStruct);
Function *mainFun = doc->globals->memberAt(2)->asFunction();
QVERIFY(mainFun);
}
void tst_Semantic::typedef_2()
{
QSharedPointer<Document> doc = document(
"struct _Point {\n"
" int x, y;\n"
"};\n"
"typedef _Point Point;\n"
"int main() {\n"
" Point pt;\n"
" pt.x = 1;\n"
"}\n"
);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 3U);
Class *_pointStruct= doc->globals->memberAt(0)->asClass();
QVERIFY(_pointStruct);
QCOMPARE(_pointStruct->memberCount(), 2U);
Declaration *typedefPointDecl = doc->globals->memberAt(1)->asDeclaration();
QVERIFY(typedefPointDecl);
QVERIFY(typedefPointDecl->isTypedef());
QVERIFY(typedefPointDecl->type()->isNamedType());
QCOMPARE(typedefPointDecl->type()->asNamedType()->name(), _pointStruct->name());
Function *mainFun = doc->globals->memberAt(2)->asFunction();
QVERIFY(mainFun);
}
void tst_Semantic::typedef_3()
{
QSharedPointer<Document> doc = document(
"typedef struct {\n"
" int x, y;\n"
"} *PointPtr;\n"
);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 2U);
Class *_pointStruct= doc->globals->memberAt(0)->asClass();
QVERIFY(_pointStruct);
QCOMPARE(_pointStruct->memberCount(), 2U);
Declaration *typedefPointDecl = doc->globals->memberAt(1)->asDeclaration();
QVERIFY(typedefPointDecl);
QVERIFY(typedefPointDecl->isTypedef());
QVERIFY(typedefPointDecl->type()->isPointerType());
QCOMPARE(typedefPointDecl->type()->asPointerType()->elementType()->asClassType(),
_pointStruct);
}
void tst_Semantic::const_1()
{
QSharedPointer<Document> doc = document("\n"
"int foo(const int *s);\n"
);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Declaration *decl = doc->globals->memberAt(0)->asDeclaration();
QVERIFY(decl);
QVERIFY(decl->type()->isFunctionType());
Function *funTy = decl->type()->asFunctionType();
QVERIFY(funTy->returnType()->isIntegerType());
QCOMPARE(funTy->argumentCount(), 1U);
Argument *arg = funTy->argumentAt(0)->asArgument();
QVERIFY(arg);
QVERIFY(! arg->type().isConst());
QVERIFY(arg->type()->isPointerType());
QVERIFY(arg->type()->asPointerType()->elementType().isConst());
QVERIFY(arg->type()->asPointerType()->elementType()->isIntegerType());
}
void tst_Semantic::const_2()
{
QSharedPointer<Document> doc = document("\n"
"int foo(char * const s);\n"
);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Declaration *decl = doc->globals->memberAt(0)->asDeclaration();
QVERIFY(decl);
QVERIFY(decl->type()->isFunctionType());
Function *funTy = decl->type()->asFunctionType();
QVERIFY(funTy->returnType()->isIntegerType());
QCOMPARE(funTy->argumentCount(), 1U);
Argument *arg = funTy->argumentAt(0)->asArgument();
QVERIFY(arg);
QVERIFY(arg->type().isConst());
QVERIFY(arg->type()->isPointerType());
QVERIFY(! arg->type()->asPointerType()->elementType().isConst());
QVERIFY(arg->type()->asPointerType()->elementType()->isIntegerType());
}
void tst_Semantic::pointer_to_function_1()
{
QSharedPointer<Document> doc = document("void (*QtSomething)();");
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Declaration *decl = doc->globals->memberAt(0)->asDeclaration();
QVERIFY(decl);
PointerType *ptrTy = decl->type()->asPointerType();
QVERIFY(ptrTy);
Function *funTy = ptrTy->elementType()->asFunctionType();
QVERIFY(funTy);
QEXPECT_FAIL("", "Requires initialize enclosing scope of pointer-to-function symbols", Continue);
QVERIFY(funTy->enclosingScope());
QEXPECT_FAIL("", "Requires initialize enclosing scope of pointer-to-function symbols", Continue);
QCOMPARE(funTy->enclosingScope(), decl->enclosingScope());
}
void tst_Semantic::template_instance_1()
{
QSharedPointer<Document> doc = document("template <typename _Tp> class QList { void append(const _Tp &value); };");
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
Template *templ = doc->globals->memberAt(0)->asTemplate();
QVERIFY(templ);
Declaration *decl = templ->memberAt(1)->asClass()->memberAt(0)->asDeclaration();
QVERIFY(decl);
FullySpecifiedType templArgs[] = { control->integerType(IntegerType::Int) };
const Name *templId = control->templateNameId(control->identifier("QList"), templArgs, 1);
FullySpecifiedType genTy = DeprecatedGenTemplateInstance::instantiate(templId, decl, control);
Overview oo;
oo.setShowReturnTypes(true);
const QString genDecl = oo.prettyType(genTy);
QCOMPARE(genDecl, QString::fromLatin1("void (const int &)"));
}
void tst_Semantic::expression_under_cursor_1()
{
const QString plainText = "void *ptr = foo(10, bar";
QTextDocument textDocument;
textDocument.setPlainText(plainText);
QTextCursor tc(&textDocument);
tc.movePosition(QTextCursor::End);
ExpressionUnderCursor expressionUnderCursor;
const QString expression = expressionUnderCursor(tc);
QCOMPARE(expression, QString("bar"));
}
void tst_Semantic::bracketed_expression_under_cursor_1()
{
const QString plainText = "int i = 0, j[1], k = j[i";
QTextDocument textDocument;
textDocument.setPlainText(plainText);
QTextCursor tc(&textDocument);
tc.movePosition(QTextCursor::End);
ExpressionUnderCursor expressionUnderCursor;
const QString expression = expressionUnderCursor(tc);
QCOMPARE(expression, QString("i"));
}
void tst_Semantic::bracketed_expression_under_cursor_2()
{
const QString plainText = "[receiver msg";
QTextDocument textDocument;
textDocument.setPlainText(plainText);
QTextCursor tc(&textDocument);
tc.movePosition(QTextCursor::End);
ExpressionUnderCursor expressionUnderCursor;
const QString expression = expressionUnderCursor(tc);
QCOMPARE(expression, plainText);
}
void tst_Semantic::bracketed_expression_under_cursor_3()
{
const QString plainText = "if ([receiver message";
QTextDocument textDocument;
textDocument.setPlainText(plainText);
QTextCursor tc(&textDocument);
tc.movePosition(QTextCursor::End);
ExpressionUnderCursor expressionUnderCursor;
const QString expression = expressionUnderCursor(tc);
QCOMPARE(expression, QString("[receiver message"));
}
void tst_Semantic::bracketed_expression_under_cursor_4()
{
const QString plainText = "int i = 0, j[1], k = j[(i == 0) ? 0 : i";
QTextDocument textDocument;
textDocument.setPlainText(plainText);
QTextCursor tc(&textDocument);
tc.movePosition(QTextCursor::End);
ExpressionUnderCursor expressionUnderCursor;
const QString expression = expressionUnderCursor(tc);
QCOMPARE(expression, QString("i"));
}
void tst_Semantic::objcClass_1()
{
QSharedPointer<Document> doc = document("\n"
"@interface Zoo {} +(id)alloc;-(id)init;@end\n"
"@implementation Zoo\n"
"+(id)alloc{}\n"
"-(id)init{}\n"
"-(void)dealloc{}\n"
"@end\n",
true);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 2U);
ObjCClass *iface = doc->globals->memberAt(0)->asObjCClass();
QVERIFY(iface);
QVERIFY(iface->isInterface());
QCOMPARE(iface->memberCount(), 2U);
ObjCClass *impl = doc->globals->memberAt(1)->asObjCClass();
QVERIFY(impl);
QVERIFY(!impl->isInterface());
QCOMPARE(impl->memberCount(), 3U);
ObjCMethod *allocMethod = impl->memberAt(0)->asObjCMethod();
QVERIFY(allocMethod);
QVERIFY(allocMethod->name() && allocMethod->name()->identifier());
QCOMPARE(QLatin1String(allocMethod->name()->identifier()->chars()), QLatin1String("alloc"));
QVERIFY(allocMethod->isStatic());
ObjCMethod *deallocMethod = impl->memberAt(2)->asObjCMethod();
QVERIFY(deallocMethod);
QVERIFY(deallocMethod->name() && deallocMethod->name()->identifier());
QCOMPARE(QLatin1String(deallocMethod->name()->identifier()->chars()), QLatin1String("dealloc"));
QVERIFY(!deallocMethod->isStatic());
}
void tst_Semantic::objcSelector_1()
{
QSharedPointer<Document> doc = document("\n"
"@interface A {}\n"
"-(void) a:(int)a b:(int)b c:(int)c;\n"
"@end\n",
true);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
ObjCClass *iface = doc->globals->memberAt(0)->asObjCClass();
QVERIFY(iface);
QVERIFY(iface->isInterface());
QCOMPARE(iface->memberCount(), 1U);
Declaration *decl = iface->memberAt(0)->asDeclaration();
QVERIFY(decl);
QVERIFY(decl->name());
const SelectorNameId *selId = decl->name()->asSelectorNameId();
QVERIFY(selId);
QCOMPARE(selId->nameCount(), 3U);
QCOMPARE(selId->nameAt(0)->identifier()->chars(), "a");
QCOMPARE(selId->nameAt(1)->identifier()->chars(), "b");
QCOMPARE(selId->nameAt(2)->identifier()->chars(), "c");
}
class CollectSelectors: public ASTVisitor
{
public:
CollectSelectors(TranslationUnit *xUnit): ASTVisitor(xUnit) {}
QList<ObjCSelectorAST *> operator()() {
selectors.clear();
accept(translationUnit()->ast());
return selectors;
}
virtual bool visit(ObjCSelectorAST *ast) {selectors.append(ast); return false;}
private:
QList<ObjCSelectorAST *> selectors;
};
void tst_Semantic::objcSelector_2()
{
QSharedPointer<Document> doc = document("\n"
"@implementation A {}\n"
"-(SEL)x {\n"
" return @selector(a:b:c:);\n"
"}\n"
"@end\n",
true);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
ObjCClass *iface = doc->globals->memberAt(0)->asObjCClass();
QVERIFY(iface);
QCOMPARE(iface->memberCount(), 1U);
QList<ObjCSelectorAST*>selectors = CollectSelectors(doc->unit)();
QCOMPARE(selectors.size(), 2);
ObjCSelectorAST *sel = selectors.at(1)->asObjCSelector();
QVERIFY(sel);
const SelectorNameId *selId = sel->name->asSelectorNameId();
QVERIFY(selId);
QCOMPARE(selId->nameCount(), 3U);
QCOMPARE(selId->nameAt(0)->identifier()->chars(), "a");
QCOMPARE(selId->nameAt(1)->identifier()->chars(), "b");
QCOMPARE(selId->nameAt(2)->identifier()->chars(), "c");
}
void tst_Semantic::q_enum_1()
{
QSharedPointer<Document> doc = document("\n"
"class Tst {\n"
"Q_ENUMS(e)\n"
"public:\n"
"enum e { x, y };\n"
"};\n",
false, true);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
QVERIFY(doc->unit);
TranslationUnitAST *xUnit = doc->unit->ast()->asTranslationUnit();
QVERIFY(xUnit);
SimpleDeclarationAST *tstDecl = xUnit->declaration_list->value->asSimpleDeclaration();
QVERIFY(tstDecl);
ClassSpecifierAST *tst = tstDecl->decl_specifier_list->value->asClassSpecifier();
QVERIFY(tst);
QtEnumDeclarationAST *qtEnum = tst->member_specifier_list->value->asQtEnumDeclaration();
QVERIFY(qtEnum);
SimpleNameAST *e = qtEnum->enumerator_list->value->asSimpleName();
QVERIFY(e);
QCOMPARE(doc->unit->spell(e->identifier_token), "e");
QCOMPARE(e->name->identifier()->chars(), "e");
}
void tst_Semantic::lambda_1()
{
QSharedPointer<Document> doc = document("\n"
"void f() {\n"
" auto func = [](int a, int b) {return a + b;};\n"
"}\n", false, false, true);
QCOMPARE(doc->errorCount, 0U);
QCOMPARE(doc->globals->memberCount(), 1U);
}
void tst_Semantic::diagnostic_error()
{
QSharedPointer<Document> doc = document("\n"
"class Foo {}\n",
false, false);
QCOMPARE(doc->errorCount, 1U);
QCOMPARE(doc->globals->memberCount(), 1U);
}
QTEST_APPLESS_MAIN(tst_Semantic)
#include "tst_semantic.moc"
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