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qt-creator/tests/auto/cplusplus/findusages/tst_findusages.cpp
hjk 7ab6783e24 Standardize on int for line and column values 
Recently tons of warnings show up for presumably "problematic"
singned <-> unsigned and size conversions.

The Qt side uses 'int', and that's the biggest 'integration surface'
for us, so instead of establishing some internal boundary between
signed and unsigned areas, push that boundary out of creator core code,
and use 'int' everywhere.

Because it reduces friction further, also do it in libcplusplus.

Change-Id: I84f3b79852c8029713e7ea6f133ffb9ef7030a70
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
2019-07-26 09:23:48 +00:00

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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 "../cplusplus_global.h"
#include <QtTest>
#include <QObject>
#include <QList>
#include <cplusplus/AST.h>
#include <cplusplus/ASTVisitor.h>
#include <cplusplus/CppDocument.h>
#include <cplusplus/FindUsages.h>
#include <cplusplus/Literals.h>
#include <cplusplus/LookupContext.h>
#include <cplusplus/Name.h>
#include <cplusplus/Overview.h>
#include <cplusplus/ResolveExpression.h>
#include <cplusplus/Symbols.h>
#include <cplusplus/TranslationUnit.h>
//TESTED_COMPONENT=src/libs/cplusplus
using namespace CPlusPlus;
class CollectNames: public ASTVisitor
{
public:
CollectNames(TranslationUnit *xUnit): ASTVisitor(xUnit) {}
QList<NameAST*> operator()(const char *name) {
_name = name;
_exprs.clear();
accept(translationUnit()->ast());
return _exprs;
}
virtual bool preVisit(AST *ast) {
if (NameAST *nameAst = ast->asName())
if (!qstrcmp(_name, nameAst->name->identifier()->chars()))
_exprs.append(nameAst);
return true;
}
private:
QList<NameAST*> _exprs;
const char *_name;
};
class tst_FindUsages: public QObject
{
Q_OBJECT
private:
void dump(const QList<Usage> &usages) const;
private Q_SLOTS:
void inlineMethod();
void lambdaCaptureByValue();
void lambdaCaptureByReference();
void shadowedNames_1();
void shadowedNames_2();
void staticVariables();
// Qt keywords
void qproperty_1();
// Objective-C
void objc_args();
// void objc_methods();
// void objc_fields();
// void objc_classes();
// templates
void instantiateTemplateWithNestedClass();
void operatorAsteriskOfNestedClassOfTemplateClass_QTCREATORBUG9006();
void operatorArrowOfNestedClassOfTemplateClass_QTCREATORBUG9005();
void templateClassParameters();
void templateClass_className();
void templateFunctionParameters();
void anonymousClass_QTCREATORBUG8963();
void anonymousClass_QTCREATORBUG11859();
void using_insideGlobalNamespace();
void using_insideNamespace();
void using_insideFunction();
void templatedFunction_QTCREATORBUG9749();
void usingInDifferentNamespace_QTCREATORBUG7978();
void unicodeIdentifier();
void inAlignas();
void memberAccessAsTemplate();
};
void tst_FindUsages::dump(const QList<Usage> &usages) const
{
QTextStream err(stderr, QIODevice::WriteOnly);
err << "DEBUG : " << usages.size() << " usages:" << endl;
foreach (const Usage &usage, usages) {
err << "DEBUG : "
<< usage.path << ":"
<< usage.line << ":"
<< usage.col << ":"
<< usage.len << ":"
<< usage.lineText << endl;
}
}
void tst_FindUsages::inlineMethod()
{
const QByteArray src = "\n"
"class Tst {\n"
" int method(int arg) {\n"
" return arg;\n"
" }\n"
"};\n";
Document::Ptr doc = Document::create("inlineMethod");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 1);
Snapshot snapshot;
snapshot.insert(doc);
Class *tst = doc->globalSymbolAt(0)->asClass();
QVERIFY(tst);
QCOMPARE(tst->memberCount(), 1);
Function *method = tst->memberAt(0)->asFunction();
QVERIFY(method);
QCOMPARE(method->argumentCount(), 1);
Argument *arg = method->argumentAt(0)->asArgument();
QVERIFY(arg);
QCOMPARE(arg->identifier()->chars(), "arg");
FindUsages findUsages(src, doc, snapshot);
findUsages(arg);
QCOMPARE(findUsages.usages().size(), 2);
QCOMPARE(findUsages.references().size(), 2);
}
void tst_FindUsages::lambdaCaptureByValue()
{
const QByteArray src = "\n"
"void f() {\n"
" int test;\n"
" [test] { ++test; };\n"
"}\n";
Document::Ptr doc = Document::create("lambdaCaptureByValue");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 1);
Snapshot snapshot;
snapshot.insert(doc);
Function *f = doc->globalSymbolAt(0)->asFunction();
QVERIFY(f);
QCOMPARE(f->memberCount(), 1);
Block *b = f->memberAt(0)->asBlock();
QCOMPARE(b->memberCount(), 2);
Declaration *d = b->memberAt(0)->asDeclaration();
QVERIFY(d);
QCOMPARE(d->name()->identifier()->chars(), "test");
FindUsages findUsages(src, doc, snapshot);
findUsages(d);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::lambdaCaptureByReference()
{
const QByteArray src = "\n"
"void f() {\n"
" int test;\n"
" [&test] { ++test; };\n"
"}\n";
Document::Ptr doc = Document::create("lambdaCaptureByReference");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 1);
Snapshot snapshot;
snapshot.insert(doc);
Function *f = doc->globalSymbolAt(0)->asFunction();
QVERIFY(f);
QCOMPARE(f->memberCount(), 1);
Block *b = f->memberAt(0)->asBlock();
QCOMPARE(b->memberCount(), 2);
Declaration *d = b->memberAt(0)->asDeclaration();
QVERIFY(d);
QCOMPARE(d->name()->identifier()->chars(), "test");
FindUsages findUsages(src, doc, snapshot);
findUsages(d);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::shadowedNames_1()
{
const QByteArray src = "\n"
"int a();\n"
"struct X{ int a(); };\n"
"int X::a() {}\n"
"void f(X x) { x.a(); }\n"
"void g() { a(); }\n"
;
Document::Ptr doc = Document::create("shadowedNames_1");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 5);
Snapshot snapshot;
snapshot.insert(doc);
Declaration *d = doc->globalSymbolAt(0)->asDeclaration();
QVERIFY(d);
QCOMPARE(d->name()->identifier()->chars(), "a");
FindUsages findUsages(src, doc, snapshot);
findUsages(d);
QCOMPARE(findUsages.usages().size(), 2);
}
void tst_FindUsages::shadowedNames_2()
{
const QByteArray src = "\n"
"int a();\n"
"struct X{ int a(); };\n"
"int X::a() {}\n"
"void f(X x) { x.a(); }\n"
"void g() { a(); }\n";
Document::Ptr doc = Document::create("shadowedNames_2");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 5);
Snapshot snapshot;
snapshot.insert(doc);
Class *c = doc->globalSymbolAt(1)->asClass();
QVERIFY(c);
QCOMPARE(c->name()->identifier()->chars(), "X");
QCOMPARE(c->memberCount(), 1);
Declaration *d = c->memberAt(0)->asDeclaration();
QVERIFY(d);
QCOMPARE(d->name()->identifier()->chars(), "a");
FindUsages findUsages(src, doc, snapshot);
findUsages(d);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::staticVariables()
{
const QByteArray src = "\n"
"struct Outer\n"
"{\n"
" static int Foo;\n"
" struct Inner\n"
" {\n"
" Outer *outer;\n"
" void foo();\n"
" };\n"
"};\n"
"\n"
"int Outer::Foo = 42;\n"
"\n"
"void Outer::Inner::foo()\n"
"{\n"
" Foo = 7;\n"
" Outer::Foo = 7;\n"
" outer->Foo = 7;\n"
"}\n"
;
Document::Ptr doc = Document::create("staticVariables");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 3);
Snapshot snapshot;
snapshot.insert(doc);
Class *c = doc->globalSymbolAt(0)->asClass();
QVERIFY(c);
QCOMPARE(c->name()->identifier()->chars(), "Outer");
QCOMPARE(c->memberCount(), 2);
Declaration *d = c->memberAt(0)->asDeclaration();
QVERIFY(d);
QCOMPARE(d->name()->identifier()->chars(), "Foo");
FindUsages findUsages(src, doc, snapshot);
findUsages(d);
QCOMPARE(findUsages.usages().size(), 5);
}
#if 0
@interface Clazz {} +(void)method:(int)arg; @end
@implementation Clazz +(void)method:(int)arg {
[Clazz method:arg];
}
@end
#endif
const QByteArray objcSource = "\n"
"@interface Clazz {} +(void)method:(int)arg; @end\n"
"@implementation Clazz +(void)method:(int)arg {\n"
" [Clazz method:arg];\n"
"}\n"
"@end\n";
void tst_FindUsages::objc_args()
{
Document::Ptr doc = Document::create("objc_args");
doc->setUtf8Source(objcSource);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 2);
Snapshot snapshot;
snapshot.insert(doc);
TranslationUnit *xUnit = doc->translationUnit();
QList<NameAST*>exprs = CollectNames(xUnit)("arg");
QCOMPARE(exprs.size(), 3);
ObjCClass *iface = doc->globalSymbolAt(0)->asObjCClass();
QVERIFY(iface);
QVERIFY(iface->isInterface());
QCOMPARE(iface->memberCount(), 1);
Declaration *methodIface = iface->memberAt(0)->asDeclaration();
QVERIFY(methodIface);
QCOMPARE(methodIface->identifier()->chars(), "method");
QVERIFY(methodIface->type()->isObjCMethodType());
ObjCClass *impl = doc->globalSymbolAt(1)->asObjCClass();
QVERIFY(impl);
QVERIFY(!impl->isInterface());
QCOMPARE(impl->memberCount(), 1);
ObjCMethod *methodImpl = impl->memberAt(0)->asObjCMethod();
QVERIFY(methodImpl);
QCOMPARE(methodImpl->identifier()->chars(), "method");
QCOMPARE(methodImpl->argumentCount(), 1);
Argument *arg = methodImpl->argumentAt(0)->asArgument();
QCOMPARE(arg->identifier()->chars(), "arg");
FindUsages findUsages(objcSource, doc, snapshot);
findUsages(arg);
QCOMPARE(findUsages.usages().size(), 2);
QCOMPARE(findUsages.references().size(), 2);
}
void tst_FindUsages::qproperty_1()
{
const QByteArray src = "\n"
"class Tst: public QObject {\n"
" Q_PROPERTY(int x READ x WRITE setX NOTIFY xChanged)\n"
"public:\n"
" int x() { return _x; }\n"
" void setX(int x) { if (_x != x) { _x = x; emit xChanged(x); } }\n"
"signals:\n"
" void xChanged(int);\n"
"private:\n"
" int _x;\n"
"};\n";
Document::Ptr doc = Document::create("qproperty_1");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 1);
Snapshot snapshot;
snapshot.insert(doc);
Class *tst = doc->globalSymbolAt(0)->asClass();
QVERIFY(tst);
QCOMPARE(tst->memberCount(), 5);
Function *setX_method = tst->memberAt(2)->asFunction();
QVERIFY(setX_method);
QCOMPARE(setX_method->identifier()->chars(), "setX");
QCOMPARE(setX_method->argumentCount(), 1);
FindUsages findUsages(src, doc, snapshot);
findUsages(setX_method);
QCOMPARE(findUsages.usages().size(), 2);
QCOMPARE(findUsages.references().size(), 2);
}
void tst_FindUsages::instantiateTemplateWithNestedClass()
{
const QByteArray src = "\n"
"struct Foo\n"
"{ int bar; };\n"
"template <typename T>\n"
"struct Template\n"
"{\n"
" struct Nested\n"
" {\n"
" T t;\n"
" }nested;\n"
"};\n"
"void f()\n"
"{\n"
" Template<Foo> templateFoo;\n"
" templateFoo.nested.t.bar;\n"
"}\n"
;
Document::Ptr doc = Document::create("simpleTemplate");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 3);
Snapshot snapshot;
snapshot.insert(doc);
Class *classFoo = doc->globalSymbolAt(0)->asClass();
QVERIFY(classFoo);
QCOMPARE(classFoo->memberCount(), 1);
Declaration *barDeclaration = classFoo->memberAt(0)->asDeclaration();
QVERIFY(barDeclaration);
QCOMPARE(barDeclaration->name()->identifier()->chars(), "bar");
FindUsages findUsages(src, doc, snapshot);
findUsages(barDeclaration);
QCOMPARE(findUsages.usages().size(), 2);
}
void tst_FindUsages::operatorAsteriskOfNestedClassOfTemplateClass_QTCREATORBUG9006()
{
const QByteArray src = "\n"
"struct Foo { int foo; };\n"
"\n"
"template<class T>\n"
"struct Outer\n"
"{\n"
" struct Nested\n"
" {\n"
" const T &operator*() { return t; }\n"
" T t;\n"
" };\n"
"};\n"
"\n"
"void bug()\n"
"{\n"
" Outer<Foo>::Nested nested;\n"
" (*nested).foo;\n"
"}\n"
;
Document::Ptr doc = Document::create("operatorAsteriskOfNestedClassOfTemplateClass_QTCREATORBUG9006");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 3);
Snapshot snapshot;
snapshot.insert(doc);
Class *classFoo = doc->globalSymbolAt(0)->asClass();
QVERIFY(classFoo);
QCOMPARE(classFoo->memberCount(), 1);
Declaration *fooDeclaration = classFoo->memberAt(0)->asDeclaration();
QVERIFY(fooDeclaration);
QCOMPARE(fooDeclaration->name()->identifier()->chars(), "foo");
FindUsages findUsages(src, doc, snapshot);
findUsages(fooDeclaration);
QCOMPARE(findUsages.usages().size(), 2);
}
void tst_FindUsages::anonymousClass_QTCREATORBUG8963()
{
const QByteArray src =
"typedef enum {\n"
" FIRST\n"
"} isNotInt;\n"
"typedef struct {\n"
" int isint;\n"
" int isNotInt;\n"
"} Struct;\n"
"void foo()\n"
"{\n"
" Struct s;\n"
" s.isint;\n"
" s.isNotInt;\n"
" FIRST;\n"
"}\n"
;
Document::Ptr doc = Document::create("anonymousClass_QTCREATORBUG8963");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 5);
Snapshot snapshot;
snapshot.insert(doc);
Class *structSymbol = doc->globalSymbolAt(2)->asClass();
QVERIFY(structSymbol);
QCOMPARE(structSymbol->memberCount(), 2);
Declaration *isNotIntDeclaration = structSymbol->memberAt(1)->asDeclaration();
QVERIFY(isNotIntDeclaration);
QCOMPARE(isNotIntDeclaration->name()->identifier()->chars(), "isNotInt");
FindUsages findUsages(src, doc, snapshot);
findUsages(isNotIntDeclaration);
QCOMPARE(findUsages.usages().size(), 2);
}
void tst_FindUsages::anonymousClass_QTCREATORBUG11859()
{
const QByteArray src =
"struct Foo {\n"
"};\n"
"typedef struct {\n"
" int Foo;\n"
"} Struct;\n"
"void foo()\n"
"{\n"
" Struct s;\n"
" s.Foo;\n"
"}\n"
;
Document::Ptr doc = Document::create("anonymousClass_QTCREATORBUG11859");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 4);
Snapshot snapshot;
snapshot.insert(doc);
Class *fooAsStruct = doc->globalSymbolAt(0)->asClass();
QVERIFY(fooAsStruct);
Class *structSymbol = doc->globalSymbolAt(1)->asClass();
QVERIFY(structSymbol);
QCOMPARE(structSymbol->memberCount(), 1);
Declaration *fooAsMemberOfAnonymousStruct = structSymbol->memberAt(0)->asDeclaration();
QVERIFY(fooAsMemberOfAnonymousStruct);
QCOMPARE(fooAsMemberOfAnonymousStruct->name()->identifier()->chars(), "Foo");
FindUsages findUsages(src, doc, snapshot);
findUsages(fooAsStruct);
QCOMPARE(findUsages.references().size(), 1);
findUsages(fooAsMemberOfAnonymousStruct);
QCOMPARE(findUsages.references().size(), 2);
}
void tst_FindUsages::using_insideGlobalNamespace()
{
const QByteArray src =
"namespace NS\n"
"{\n"
"struct Struct\n"
"{\n"
" int bar;\n"
"};\n"
"}\n"
"using NS::Struct;\n"
"void foo()\n"
"{\n"
" Struct s;\n"
"}\n"
;
Document::Ptr doc = Document::create("using_insideGlobalNamespace");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 3);
Snapshot snapshot;
snapshot.insert(doc);
Namespace *nsSymbol = doc->globalSymbolAt(0)->asNamespace();
QVERIFY(nsSymbol);
QCOMPARE(nsSymbol->memberCount(), 1);
Class *structSymbol = nsSymbol->memberAt(0)->asClass();
QVERIFY(structSymbol);
FindUsages findUsages(src, doc, snapshot);
findUsages(structSymbol);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::using_insideNamespace()
{
const QByteArray src =
"namespace NS\n"
"{\n"
"struct Struct\n"
"{\n"
" int bar;\n"
"};\n"
"}\n"
"namespace NS1\n"
"{\n"
"using NS::Struct;\n"
"void foo()\n"
"{\n"
" Struct s;\n"
"}\n"
"}\n"
;
Document::Ptr doc = Document::create("using_insideNamespace");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 2);
Snapshot snapshot;
snapshot.insert(doc);
Namespace *nsSymbol = doc->globalSymbolAt(0)->asNamespace();
QVERIFY(nsSymbol);
QCOMPARE(nsSymbol->memberCount(), 1);
Class *structSymbol = nsSymbol->memberAt(0)->asClass();
QVERIFY(structSymbol);
FindUsages findUsages(src, doc, snapshot);
findUsages(structSymbol);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::using_insideFunction()
{
const QByteArray src =
"namespace NS\n"
"{\n"
"struct Struct\n"
"{\n"
" int bar;\n"
"};\n"
"}\n"
"void foo()\n"
"{\n"
" using NS::Struct;\n"
" Struct s;\n"
"}\n"
;
Document::Ptr doc = Document::create("using_insideFunction");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 2);
Snapshot snapshot;
snapshot.insert(doc);
Namespace *nsSymbol = doc->globalSymbolAt(0)->asNamespace();
QVERIFY(nsSymbol);
QCOMPARE(nsSymbol->memberCount(), 1);
Class *structSymbol = nsSymbol->memberAt(0)->asClass();
QVERIFY(structSymbol);
FindUsages findUsages(src, doc, snapshot);
findUsages(structSymbol);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::operatorArrowOfNestedClassOfTemplateClass_QTCREATORBUG9005()
{
const QByteArray src = "\n"
"struct Foo { int foo; };\n"
"\n"
"template<class T>\n"
"struct Outer\n"
"{\n"
" struct Nested\n"
" {\n"
" T *operator->() { return 0; }\n"
" };\n"
"};\n"
"\n"
"void bug()\n"
"{\n"
" Outer<Foo>::Nested nested;\n"
" nested->foo;\n"
"}\n"
;
Document::Ptr doc = Document::create("operatorArrowOfNestedClassOfTemplateClass_QTCREATORBUG9005");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 3);
Snapshot snapshot;
snapshot.insert(doc);
Class *classFoo = doc->globalSymbolAt(0)->asClass();
QVERIFY(classFoo);
QCOMPARE(classFoo->memberCount(), 1);
Declaration *fooDeclaration = classFoo->memberAt(0)->asDeclaration();
QVERIFY(fooDeclaration);
QCOMPARE(fooDeclaration->name()->identifier()->chars(), "foo");
FindUsages findUsages(src, doc, snapshot);
findUsages(fooDeclaration);
QCOMPARE(findUsages.usages().size(), 2);
}
void tst_FindUsages::templateClassParameters()
{
const QByteArray src = "\n"
"template <class T>\n"
"struct TS\n"
"{\n"
" void set(T t) { T t1 = t; }\n"
" T get();\n"
" T t;\n"
"};\n"
;
Document::Ptr doc = Document::create("templateClassParameters");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 1);
Snapshot snapshot;
snapshot.insert(doc);
Template *templateClassTS = doc->globalSymbolAt(0)->asTemplate();
QVERIFY(templateClassTS);
QCOMPARE(templateClassTS->memberCount(), 2);
QCOMPARE(templateClassTS->templateParameterCount(), 1);
TypenameArgument *templArgument = templateClassTS->templateParameterAt(0)->asTypenameArgument();
QVERIFY(templArgument);
FindUsages findUsages(src, doc, snapshot);
findUsages(templArgument);
QCOMPARE(findUsages.usages().size(), 5);
}
void tst_FindUsages::templateClass_className()
{
const QByteArray src = "\n"
"template <class T>\n"
"struct TS\n"
"{\n"
" TS();\n"
" ~TS();\n"
"};\n"
"template <class T>\n"
"TS<T>::TS()\n"
"{\n"
"}\n"
"template <class T>\n"
"TS<T>::~TS()\n"
"{\n"
"}\n"
;
Document::Ptr doc = Document::create("templateClass_className");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 3);
Snapshot snapshot;
snapshot.insert(doc);
Template *templateClassTS = doc->globalSymbolAt(0)->asTemplate();
QVERIFY(templateClassTS);
Class *classTS = templateClassTS->memberAt(1)->asClass();
QVERIFY(classTS);
QCOMPARE(classTS->memberCount(), 2);
FindUsages findUsages(src, doc, snapshot);
findUsages(classTS);
QCOMPARE(findUsages.usages().size(), 7);
}
void tst_FindUsages::templateFunctionParameters()
{
const QByteArray src = "\n"
"template<class T>\n"
"T foo(T t)\n"
"{\n"
" typename T;\n"
"}\n"
;
Document::Ptr doc = Document::create("templateFunctionParameters");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 1);
Snapshot snapshot;
snapshot.insert(doc);
Template *templateFunctionTS = doc->globalSymbolAt(0)->asTemplate();
QVERIFY(templateFunctionTS);
QCOMPARE(templateFunctionTS->memberCount(), 2);
QCOMPARE(templateFunctionTS->templateParameterCount(), 1);
TypenameArgument *templArgument = templateFunctionTS->templateParameterAt(0)->asTypenameArgument();
QVERIFY(templArgument);
FindUsages findUsages(src, doc, snapshot);
findUsages(templArgument);
QCOMPARE(findUsages.usages().size(), 4);
}
void tst_FindUsages::templatedFunction_QTCREATORBUG9749()
{
const QByteArray src = "\n"
"template <class IntType> char *reformatInteger(IntType value, int format) {}\n"
"void func(int code, int format) {\n"
" reformatInteger(code, format);"
"}\n"
;
Document::Ptr doc = Document::create("templatedFunction_QTCREATORBUG9749");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 2);
Snapshot snapshot;
snapshot.insert(doc);
Template *funcTempl = doc->globalSymbolAt(0)->asTemplate();
QVERIFY(funcTempl);
QCOMPARE(funcTempl->memberCount(), 2);
Function *func = funcTempl->memberAt(1)->asFunction();
FindUsages findUsages(src, doc, snapshot);
findUsages(func);
QCOMPARE(findUsages.usages().size(), 2);
}
void tst_FindUsages::usingInDifferentNamespace_QTCREATORBUG7978()
{
const QByteArray src = "\n"
"struct S {};\n"
"namespace std\n"
"{\n"
" template <typename T> struct shared_ptr{};\n"
"}\n"
"namespace NS\n"
"{\n"
" using std::shared_ptr;\n"
"}\n"
"void fun()\n"
"{\n"
" NS::shared_ptr<S> p;\n"
"}\n"
;
Document::Ptr doc = Document::create("usingInDifferentNamespace_QTCREATORBUG7978");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 4);
Snapshot snapshot;
snapshot.insert(doc);
Namespace *ns = doc->globalSymbolAt(1)->asNamespace();
QVERIFY(ns);
QCOMPARE(ns->memberCount(), 1);
Template *templateClass = ns->memberAt(0)->asTemplate();
FindUsages findUsages(src, doc, snapshot);
findUsages(templateClass);
QCOMPARE(findUsages.usages().size(), 3);
}
void tst_FindUsages::unicodeIdentifier()
{
const QByteArray src = "\n"
"int var" TEST_UNICODE_IDENTIFIER ";\n"
"void f() { var" TEST_UNICODE_IDENTIFIER " = 1; }\n";
;
Document::Ptr doc = Document::create("u");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 2);
Snapshot snapshot;
snapshot.insert(doc);
Declaration *declaration = doc->globalSymbolAt(0)->asDeclaration();
QVERIFY(declaration);
FindUsages findUsages(src, doc, snapshot);
findUsages(declaration);
const QList<Usage> usages = findUsages.usages();
QCOMPARE(usages.size(), 2);
QCOMPARE(usages.at(0).len, 7);
QCOMPARE(usages.at(1).len, 7);
}
void tst_FindUsages::inAlignas()
{
const QByteArray src = "\n"
"struct One {};\n"
"struct alignas(One) Two {};\n"
;
Document::Ptr doc = Document::create("inAlignas");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 2);
Snapshot snapshot;
snapshot.insert(doc);
Class *c = doc->globalSymbolAt(0)->asClass();
QVERIFY(c);
QCOMPARE(c->name()->identifier()->chars(), "One");
FindUsages find(src, doc, snapshot);
find(c);
QCOMPARE(find.usages().size(), 2);
QCOMPARE(find.usages()[0].line, 1);
QCOMPARE(find.usages()[0].col, 7);
QCOMPARE(find.usages()[1].line, 2);
QCOMPARE(find.usages()[1].col, 15);
}
void tst_FindUsages::memberAccessAsTemplate()
{
const QByteArray src = "\n"
"struct Foo {};\n"
"struct Bar {\n"
" template <typename T>\n"
" T *templateFunc() { return 0; }\n"
"};\n"
"struct Test {\n"
" Bar member;\n"
" void testFunc();\n"
"};\n"
"void Test::testFunc() {\n"
" member.templateFunc<Foo>();\n"
"}\n";
Document::Ptr doc = Document::create("memberAccessAsTemplate");
doc->setUtf8Source(src);
doc->parse();
doc->check();
QVERIFY(doc->diagnosticMessages().isEmpty());
QCOMPARE(doc->globalSymbolCount(), 4);
Snapshot snapshot;
snapshot.insert(doc);
{ // Test "Foo"
Class *c = doc->globalSymbolAt(0)->asClass();
QVERIFY(c);
QCOMPARE(c->name()->identifier()->chars(), "Foo");
FindUsages find(src, doc, snapshot);
find(c);
QCOMPARE(find.usages().size(), 2);
QCOMPARE(find.usages()[0].line, 1);
QCOMPARE(find.usages()[0].col, 7);
QCOMPARE(find.usages()[1].line, 11);
QCOMPARE(find.usages()[1].col, 24);
}
{ // Test "templateFunc"
Class *c = doc->globalSymbolAt(1)->asClass();
QVERIFY(c);
QCOMPARE(c->name()->identifier()->chars(), "Bar");
QCOMPARE(c->memberCount(), 1);
Template *f = c->memberAt(0)->asTemplate();
QVERIFY(f);
QCOMPARE(f->name()->identifier()->chars(), "templateFunc");
FindUsages find(src, doc, snapshot);
find(f);
QCOMPARE(find.usages().size(), 2);
QCOMPARE(find.usages()[0].line, 4);
QCOMPARE(find.usages()[0].col, 7);
QCOMPARE(find.usages()[1].line, 11);
QCOMPARE(find.usages()[1].col, 11);
}
}
QTEST_APPLESS_MAIN(tst_FindUsages)
#include "tst_findusages.moc"
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