CppEditor: Move CompleteSwitchStatement quickfix into its own files

Change-Id: Ibb4032c4c9715af62f644e84985712b68a11fdd9
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
This commit is contained in:
Christian Kandeler
2024-05-16 17:08:35 +02:00
parent 7fec30a2c4
commit 977702d933
7 changed files with 813 additions and 771 deletions

View File

@@ -97,6 +97,7 @@ add_qtc_plugin(CppEditor
projectpart.cpp projectpart.h
quickfixes/assigntolocalvariable.cpp quickfixes/assigntolocalvariable.h
quickfixes/bringidentifierintoscope.cpp quickfixes/bringidentifierintoscope.h
quickfixes/completeswitchstatement.cpp quickfixes/completeswitchstatement.h
quickfixes/convertqt4connect.cpp quickfixes/convertqt4connect.h
quickfixes/convertstringliteral.cpp quickfixes/convertstringliteral.h
quickfixes/cppcodegenerationquickfixes.cpp quickfixes/cppcodegenerationquickfixes.h

View File

@@ -223,6 +223,8 @@ QtcPlugin {
"assigntolocalvariable.h",
"bringidentifierintoscope.cpp",
"bringidentifierintoscope.h",
"completeswitchstatement.cpp",
"completeswitchstatement.h",
"convertfromandtopointer.cpp",
"convertfromandtopointer.h",
"convertqt4connect.cpp",

View File

@@ -0,0 +1,799 @@
// 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 "completeswitchstatement.h"
#include "../cppeditortr.h"
#include "../cpprefactoringchanges.h"
#include "cppquickfix.h"
#include <cplusplus/Overview.h>
#include <cplusplus/TypeOfExpression.h>
#ifdef WITH_TESTS
#include "cppquickfix_test.h"
#include <QtTest>
#endif
using namespace CPlusPlus;
using namespace Utils;
namespace CppEditor::Internal {
namespace {
class CaseStatementCollector : public ASTVisitor
{
public:
CaseStatementCollector(Document::Ptr document, const Snapshot &snapshot,
Scope *scope)
: ASTVisitor(document->translationUnit()),
document(document),
scope(scope)
{
typeOfExpression.init(document, snapshot);
}
QStringList operator ()(AST *ast)
{
values.clear();
foundCaseStatementLevel = false;
accept(ast);
return values;
}
bool preVisit(AST *ast) override {
if (CaseStatementAST *cs = ast->asCaseStatement()) {
foundCaseStatementLevel = true;
if (ExpressionAST *csExpression = cs->expression) {
if (ExpressionAST *expression = csExpression->asIdExpression()) {
QList<LookupItem> candidates = typeOfExpression(expression, document, scope);
if (!candidates.isEmpty() && candidates.first().declaration()) {
Symbol *decl = candidates.first().declaration();
values << prettyPrint.prettyName(LookupContext::fullyQualifiedName(decl));
}
}
}
return true;
} else if (foundCaseStatementLevel) {
return false;
}
return true;
}
Overview prettyPrint;
bool foundCaseStatementLevel = false;
QStringList values;
TypeOfExpression typeOfExpression;
Document::Ptr document;
Scope *scope;
};
class CompleteSwitchCaseStatementOp: public CppQuickFixOperation
{
public:
CompleteSwitchCaseStatementOp(const CppQuickFixInterface &interface,
int priority, CompoundStatementAST *compoundStatement, const QStringList &values)
: CppQuickFixOperation(interface, priority)
, compoundStatement(compoundStatement)
, values(values)
{
setDescription(Tr::tr("Complete Switch Statement"));
}
void perform() override
{
CppRefactoringChanges refactoring(snapshot());
CppRefactoringFilePtr currentFile = refactoring.cppFile(filePath());
ChangeSet changes;
int start = currentFile->endOf(compoundStatement->lbrace_token);
changes.insert(start, QLatin1String("\ncase ")
+ values.join(QLatin1String(":\nbreak;\ncase "))
+ QLatin1String(":\nbreak;"));
currentFile->setChangeSet(changes);
currentFile->apply();
}
CompoundStatementAST *compoundStatement;
QStringList values;
};
static Enum *findEnum(const QList<LookupItem> &results, const LookupContext &ctxt)
{
for (const LookupItem &result : results) {
const FullySpecifiedType fst = result.type();
Type *type = result.declaration() ? result.declaration()->type().type()
: fst.type();
if (!type)
continue;
if (Enum *e = type->asEnumType())
return e;
if (const NamedType *namedType = type->asNamedType()) {
if (ClassOrNamespace *con = ctxt.lookupType(namedType->name(), result.scope())) {
QList<Enum *> enums = con->unscopedEnums();
const QList<Symbol *> symbols = con->symbols();
for (Symbol * const s : symbols) {
if (const auto e = s->asEnum())
enums << e;
}
const Name *referenceName = namedType->name();
if (const QualifiedNameId *qualifiedName = referenceName->asQualifiedNameId())
referenceName = qualifiedName->name();
for (Enum *e : std::as_const(enums)) {
if (const Name *candidateName = e->name()) {
if (candidateName->match(referenceName))
return e;
}
}
}
}
}
return nullptr;
}
Enum *conditionEnum(const CppQuickFixInterface &interface, SwitchStatementAST *statement)
{
Block *block = statement->symbol;
Scope *scope = interface.semanticInfo().doc->scopeAt(block->line(), block->column());
TypeOfExpression typeOfExpression;
typeOfExpression.setExpandTemplates(true);
typeOfExpression.init(interface.semanticInfo().doc, interface.snapshot());
const QList<LookupItem> results = typeOfExpression(statement->condition,
interface.semanticInfo().doc,
scope);
return findEnum(results, typeOfExpression.context());
}
//! Adds missing case statements for "switch (enumVariable)"
class CompleteSwitchStatement: public CppQuickFixFactory
{
public:
CompleteSwitchStatement() { setClangdReplacement({12}); }
#ifdef WITH_TESTS
static QObject *createTest();
#endif
private:
void doMatch(const CppQuickFixInterface &interface, QuickFixOperations &result) override
{
const QList<AST *> &path = interface.path();
if (path.isEmpty())
return;
// look for switch statement
for (int depth = path.size() - 1; depth >= 0; --depth) {
AST *ast = path.at(depth);
SwitchStatementAST *switchStatement = ast->asSwitchStatement();
if (switchStatement) {
if (!switchStatement->statement || !switchStatement->symbol)
return;
CompoundStatementAST *compoundStatement = switchStatement->statement->asCompoundStatement();
if (!compoundStatement) // we ignore pathologic case "switch (t) case A: ;"
return;
// look if the condition's type is an enum
if (Enum *e = conditionEnum(interface, switchStatement)) {
// check the possible enum values
QStringList values;
Overview prettyPrint;
for (int i = 0; i < e->memberCount(); ++i) {
if (Declaration *decl = e->memberAt(i)->asDeclaration())
values << prettyPrint.prettyName(LookupContext::fullyQualifiedName(decl));
}
// Get the used values
Block *block = switchStatement->symbol;
CaseStatementCollector caseValues(interface.semanticInfo().doc, interface.snapshot(),
interface.semanticInfo().doc->scopeAt(block->line(), block->column()));
const QStringList usedValues = caseValues(switchStatement);
// save the values that would be added
for (const QString &usedValue : usedValues)
values.removeAll(usedValue);
if (!values.isEmpty())
result << new CompleteSwitchCaseStatementOp(interface, depth,
compoundStatement, values);
return;
}
return;
}
}
}
};
#ifdef WITH_TESTS
using namespace Tests;
class CompleteSwitchStatementTest : public QObject
{
Q_OBJECT
private slots:
void test_data()
{
QTest::addColumn<QByteArray>("original");
QTest::addColumn<QByteArray>("expected");
using QByteArray = QByteArray;
// Checks: All enum values are added as case statements for a blank switch.
QTest::newRow("basic1")
<< QByteArray(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("basic1_enum class")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above with the cursor somewhere in the body.
QTest::newRow("basic1_enum class, cursor in the body")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" @}\n"
"}\n")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: All enum values are added as case statements for a blank switch when
// the variable is declared alongside the enum definition.
QTest::newRow("basic1_enum_with_declaration")
<< QByteArray(
"enum EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("basic1_enum_with_declaration_enumClass")
<< QByteArray(
"enum class EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum class EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: All enum values are added as case statements for a blank switch
// for anonymous enums.
QTest::newRow("basic1_anonymous_enum")
<< QByteArray(
"enum { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: All enum values are added as case statements for a blank switch with a default case.
QTest::newRow("basic2")
<< QByteArray(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" default:\n"
" break;\n"
" }\n"
"}\n")
<< QByteArray(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("basic2_enumClass")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" default:\n"
" break;\n"
" }\n"
"}\n")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Enum type in class is found.
QTest::newRow("enumTypeInClass")
<< QByteArray(
"struct C { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"struct C { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" switch (t) {\n"
" case C::V1:\n"
" break;\n"
" case C::V2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("enumClassInClass")
<< QByteArray(
"struct C { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"struct C { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" switch (t) {\n"
" case C::EnumType::V1:\n"
" break;\n"
" case C::EnumType::V2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Enum type in namespace is found.
QTest::newRow("enumTypeInNamespace")
<< QByteArray(
"namespace N { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"namespace N { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" switch (t) {\n"
" case N::V1:\n"
" break;\n"
" case N::V2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("enumClassInNamespace")
<< QByteArray(
"namespace N { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n")
<< QByteArray(
"namespace N { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" switch (t) {\n"
" case N::EnumType::V1:\n"
" break;\n"
" case N::EnumType::V2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: The missing enum value is added.
QTest::newRow("oneValueMissing")
<< QByteArray(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" case V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n")
<< QByteArray(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Same as above for enum class.
QTest::newRow("oneValueMissing_enumClass")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" case EnumType::V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n")
<< QByteArray(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Find the correct enum type despite there being a declaration with the same name.
QTest::newRow("QTCREATORBUG10366_1")
<< QByteArray(
"enum test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" switch (test) {\n"
" case TEST_1:\n"
" break;\n"
" case TEST_2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("QTCREATORBUG10366_1_enumClass")
<< QByteArray(
"enum class test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum class test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" switch (test) {\n"
" case test::TEST_1:\n"
" break;\n"
" case test::TEST_2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Find the correct enum type despite there being a declaration with the same name.
QTest::newRow("QTCREATORBUG10366_2")
<< QByteArray(
"enum test1 { Wrong11, Wrong12 };\n"
"enum test { Right1, Right2 };\n"
"enum test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum test1 { Wrong11, Wrong12 };\n"
"enum test { Right1, Right2 };\n"
"enum test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" switch (test) {\n"
" case Right1:\n"
" break;\n"
" case Right2:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("QTCREATORBUG10366_2_enumClass")
<< QByteArray(
"enum class test1 { Wrong11, Wrong12 };\n"
"enum class test { Right1, Right2 };\n"
"enum class test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum class test1 { Wrong11, Wrong12 };\n"
"enum class test { Right1, Right2 };\n"
"enum class test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" switch (test) {\n"
" case test::Right1:\n"
" break;\n"
" case test::Right2:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Do not crash on incomplete case statetement.
QTest::newRow("doNotCrashOnIncompleteCase")
<< QByteArray(
"enum E {};\n"
"void f(E o)\n"
"{\n"
" @switch (o)\n"
" {\n"
" case\n"
" }\n"
"}\n")
<< QByteArray();
// Same as above for enum class.
QTest::newRow("doNotCrashOnIncompleteCase_enumClass")
<< QByteArray(
"enum class E {};\n"
"void f(E o)\n"
"{\n"
" @switch (o)\n"
" {\n"
" case\n"
" }\n"
"}\n")
<< QByteArray();
// Checks: complete switch statement where enum is goes via a template type parameter
QTest::newRow("QTCREATORBUG-24752")
<< QByteArray(
"enum E {EA, EB};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" @switch (S<E>::theType()) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum E {EA, EB};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" switch (S<E>::theType()) {\n"
" case EA:\n"
" break;\n"
" case EB:\n"
" break;\n"
" }\n"
"}\n");
// Same as above for enum class.
QTest::newRow("QTCREATORBUG-24752_enumClass")
<< QByteArray(
"enum class E {A, B};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" @switch (S<E>::theType()) {\n"
" }\n"
"}\n")
<< QByteArray(
"enum class E {A, B};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" switch (S<E>::theType()) {\n"
" case E::A:\n"
" break;\n"
" case E::B:\n"
" break;\n"
" }\n"
"}\n");
// Checks: Complete switch statement where enum is return type of a template function
// which is outside the scope of the return value.
// TODO: Type minimization.
QTest::newRow("QTCREATORBUG-25998")
<< QByteArray(
"template <typename T> T enumCast(int value) { return static_cast<T>(value); }\n"
"class Test {\n"
" enum class E { V1, V2 };"
" void func(int i) {\n"
" @switch (enumCast<E>(i)) {\n"
" }\n"
" }\n"
"};\n")
<< QByteArray(
"template <typename T> T enumCast(int value) { return static_cast<T>(value); }\n"
"class Test {\n"
" enum class E { V1, V2 };"
" void func(int i) {\n"
" switch (enumCast<E>(i)) {\n"
" case Test::E::V1:\n"
" break;\n"
" case Test::E::V2:\n"
" break;\n"
" }\n"
" }\n"
"};\n");
}
void test()
{
QFETCH(QByteArray, original);
QFETCH(QByteArray, expected);
CompleteSwitchStatement factory;
QuickFixOperationTest(singleDocument(original, expected), &factory);
}
};
QObject *CompleteSwitchStatement::createTest() { return new CompleteSwitchStatementTest; }
#endif // WITH_TESTS
} // namespace
void registerCompleteSwitchStatementQuickfix()
{
CppQuickFixFactory::registerFactory<CompleteSwitchStatement>();
}
} // namespace CppEditor::Internal
#ifdef WITH_TESTS
#include <completeswitchstatement.moc>
#endif

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@@ -0,0 +1,8 @@
// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
namespace CppEditor::Internal {
void registerCompleteSwitchStatementQuickfix();
} // namespace CppEditor::Internal

View File

@@ -206,7 +206,7 @@ QuickFixOperationTest::QuickFixOperationTest(const QList<TestDocumentPtr> &testD
QuickFixOperations operations;
factory->match(quickFixInterface, operations);
if (operations.isEmpty()) {
QEXPECT_FAIL("CompleteSwitchCaseStatement_QTCREATORBUG-25998", "FIXME", Abort);
QEXPECT_FAIL("QTCREATORBUG-25998", "FIXME", Abort);
QVERIFY(testDocuments.first()->m_expectedSource.isEmpty());
return;
}
@@ -263,584 +263,6 @@ void QuickfixTest::testGeneric_data()
QTest::addColumn<QByteArray>("original");
QTest::addColumn<QByteArray>("expected");
// Checks: All enum values are added as case statements for a blank switch.
QTest::newRow("CompleteSwitchCaseStatement_basic1")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_basic1_enum class")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above with the cursor somewhere in the body.
QTest::newRow("CompleteSwitchCaseStatement_basic1_enum class, cursor in the body")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" @}\n"
"}\n"
) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: All enum values are added as case statements for a blank switch when
// the variable is declared alongside the enum definition.
QTest::newRow("CompleteSwitchCaseStatement_basic1_enum_with_declaration")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"enum EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_basic1_enum_with_declaration_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"enum class EnumType { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: All enum values are added as case statements for a blank switch
// for anonymous enums.
QTest::newRow("CompleteSwitchCaseStatement_basic1_anonymous_enum")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"enum { V1, V2 } t;\n"
"\n"
"void f()\n"
"{\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: All enum values are added as case statements for a blank switch with a default case.
QTest::newRow("CompleteSwitchCaseStatement_basic2")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
) << _(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_basic2_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Enum type in class is found.
QTest::newRow("CompleteSwitchCaseStatement_enumTypeInClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"struct C { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"struct C { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" switch (t) {\n"
" case C::V1:\n"
" break;\n"
" case C::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_enumClassInClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"struct C { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"struct C { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(C::EnumType t) {\n"
" switch (t) {\n"
" case C::EnumType::V1:\n"
" break;\n"
" case C::EnumType::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Enum type in namespace is found.
QTest::newRow("CompleteSwitchCaseStatement_enumTypeInNamespace")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"namespace N { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"namespace N { enum EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" switch (t) {\n"
" case N::V1:\n"
" break;\n"
" case N::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_enumClassInNamespace")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"namespace N { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" @switch (t) {\n"
" }\n"
"}\n"
) << _(
"namespace N { enum class EnumType { V1, V2 }; };\n"
"\n"
"void f(N::EnumType t) {\n"
" switch (t) {\n"
" case N::EnumType::V1:\n"
" break;\n"
" case N::EnumType::V2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: The missing enum value is added.
QTest::newRow("CompleteSwitchCaseStatement_oneValueMissing")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" case V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
) << _(
"enum EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case V1:\n"
" break;\n"
" case V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_oneValueMissing_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" @switch (t) {\n"
" case EnumType::V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
) << _(
"enum class EnumType { V1, V2 };\n"
"\n"
"void f()\n"
"{\n"
" EnumType t;\n"
" switch (t) {\n"
" case EnumType::V1:\n"
" break;\n"
" case EnumType::V2:\n"
" break;\n"
" default:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Find the correct enum type despite there being a declaration with the same name.
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG10366_1")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n"
) << _(
"enum test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" switch (test) {\n"
" case TEST_1:\n"
" break;\n"
" case TEST_2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG10366_1_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n"
) << _(
"enum class test { TEST_1, TEST_2 };\n"
"\n"
"void f() {\n"
" enum test test;\n"
" switch (test) {\n"
" case test::TEST_1:\n"
" break;\n"
" case test::TEST_2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Find the correct enum type despite there being a declaration with the same name.
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG10366_2")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum test1 { Wrong11, Wrong12 };\n"
"enum test { Right1, Right2 };\n"
"enum test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n"
) << _(
"enum test1 { Wrong11, Wrong12 };\n"
"enum test { Right1, Right2 };\n"
"enum test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" switch (test) {\n"
" case Right1:\n"
" break;\n"
" case Right2:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG10366_2_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class test1 { Wrong11, Wrong12 };\n"
"enum class test { Right1, Right2 };\n"
"enum class test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" @switch (test) {\n"
" }\n"
"}\n"
) << _(
"enum class test1 { Wrong11, Wrong12 };\n"
"enum class test { Right1, Right2 };\n"
"enum class test2 { Wrong21, Wrong22 };\n"
"\n"
"int main() {\n"
" enum test test;\n"
" switch (test) {\n"
" case test::Right1:\n"
" break;\n"
" case test::Right2:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Do not crash on incomplete case statetement.
QTest::newRow("CompleteSwitchCaseStatement_doNotCrashOnIncompleteCase")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum E {};\n"
"void f(E o)\n"
"{\n"
" @switch (o)\n"
" {\n"
" case\n"
" }\n"
"}\n"
) << _(
""
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_doNotCrashOnIncompleteCase_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class E {};\n"
"void f(E o)\n"
"{\n"
" @switch (o)\n"
" {\n"
" case\n"
" }\n"
"}\n"
) << _(
""
);
// Checks: complete switch statement where enum is goes via a template type parameter
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG-24752")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum E {EA, EB};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" @switch (S<E>::theType()) {\n"
" }\n"
"}\n"
) << _(
"enum E {EA, EB};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" switch (S<E>::theType()) {\n"
" case EA:\n"
" break;\n"
" case EB:\n"
" break;\n"
" }\n"
"}\n"
);
// Same as above for enum class.
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG-24752_enumClass")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"enum class E {A, B};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" @switch (S<E>::theType()) {\n"
" }\n"
"}\n"
) << _(
"enum class E {A, B};\n"
"template<typename T> struct S {\n"
" static T theType() { return T(); }\n"
"};\n"
"int main() {\n"
" switch (S<E>::theType()) {\n"
" case E::A:\n"
" break;\n"
" case E::B:\n"
" break;\n"
" }\n"
"}\n"
);
// Checks: Complete switch statement where enum is return type of a template function
// which is outside the scope of the return value.
// TODO: Type minimization.
QTest::newRow("CompleteSwitchCaseStatement_QTCREATORBUG-25998")
<< CppQuickFixFactoryPtr(new CompleteSwitchCaseStatement) << _(
"template <typename T> T enumCast(int value) { return static_cast<T>(value); }\n"
"class Test {\n"
" enum class E { V1, V2 };"
" void func(int i) {\n"
" @switch (enumCast<E>(i)) {\n"
" }\n"
" }\n"
"};\n"
) << _(
"template <typename T> T enumCast(int value) { return static_cast<T>(value); }\n"
"class Test {\n"
" enum class E { V1, V2 };"
" void func(int i) {\n"
" switch (enumCast<E>(i)) {\n"
" case Test::E::V1:\n"
" break;\n"
" case Test::E::V2:\n"
" break;\n"
" }\n"
" }\n"
"};\n"
);
// Check: Just a basic test since the main functionality is tested in
// cpppointerdeclarationformatter_test.cpp
QTest::newRow("ReformatPointerDeclaration")

View File

@@ -15,12 +15,12 @@
#include "../symbolfinder.h"
#include "assigntolocalvariable.h"
#include "bringidentifierintoscope.h"
#include "completeswitchstatement.h"
#include "convertfromandtopointer.h"
#include "cppcodegenerationquickfixes.h"
#include "cppinsertvirtualmethods.h"
#include "cppquickfixassistant.h"
#include "cppquickfixhelpers.h"
#include "cppquickfixprojectsettings.h"
#include "convertqt4connect.h"
#include "convertstringliteral.h"
#include "createdeclarationfromuse.h"
@@ -693,183 +693,6 @@ void ReformatPointerDeclaration::doMatch(const CppQuickFixInterface &interface,
namespace {
class CaseStatementCollector : public ASTVisitor
{
public:
CaseStatementCollector(Document::Ptr document, const Snapshot &snapshot,
Scope *scope)
: ASTVisitor(document->translationUnit()),
document(document),
scope(scope)
{
typeOfExpression.init(document, snapshot);
}
QStringList operator ()(AST *ast)
{
values.clear();
foundCaseStatementLevel = false;
accept(ast);
return values;
}
bool preVisit(AST *ast) override {
if (CaseStatementAST *cs = ast->asCaseStatement()) {
foundCaseStatementLevel = true;
if (ExpressionAST *csExpression = cs->expression) {
if (ExpressionAST *expression = csExpression->asIdExpression()) {
QList<LookupItem> candidates = typeOfExpression(expression, document, scope);
if (!candidates.isEmpty() && candidates.first().declaration()) {
Symbol *decl = candidates.first().declaration();
values << prettyPrint.prettyName(LookupContext::fullyQualifiedName(decl));
}
}
}
return true;
} else if (foundCaseStatementLevel) {
return false;
}
return true;
}
Overview prettyPrint;
bool foundCaseStatementLevel = false;
QStringList values;
TypeOfExpression typeOfExpression;
Document::Ptr document;
Scope *scope;
};
class CompleteSwitchCaseStatementOp: public CppQuickFixOperation
{
public:
CompleteSwitchCaseStatementOp(const CppQuickFixInterface &interface,
int priority, CompoundStatementAST *compoundStatement, const QStringList &values)
: CppQuickFixOperation(interface, priority)
, compoundStatement(compoundStatement)
, values(values)
{
setDescription(Tr::tr("Complete Switch Statement"));
}
void perform() override
{
CppRefactoringChanges refactoring(snapshot());
CppRefactoringFilePtr currentFile = refactoring.cppFile(filePath());
ChangeSet changes;
int start = currentFile->endOf(compoundStatement->lbrace_token);
changes.insert(start, QLatin1String("\ncase ")
+ values.join(QLatin1String(":\nbreak;\ncase "))
+ QLatin1String(":\nbreak;"));
currentFile->setChangeSet(changes);
currentFile->apply();
}
CompoundStatementAST *compoundStatement;
QStringList values;
};
static Enum *findEnum(const QList<LookupItem> &results, const LookupContext &ctxt)
{
for (const LookupItem &result : results) {
const FullySpecifiedType fst = result.type();
Type *type = result.declaration() ? result.declaration()->type().type()
: fst.type();
if (!type)
continue;
if (Enum *e = type->asEnumType())
return e;
if (const NamedType *namedType = type->asNamedType()) {
if (ClassOrNamespace *con = ctxt.lookupType(namedType->name(), result.scope())) {
QList<Enum *> enums = con->unscopedEnums();
const QList<Symbol *> symbols = con->symbols();
for (Symbol * const s : symbols) {
if (const auto e = s->asEnum())
enums << e;
}
const Name *referenceName = namedType->name();
if (const QualifiedNameId *qualifiedName = referenceName->asQualifiedNameId())
referenceName = qualifiedName->name();
for (Enum *e : std::as_const(enums)) {
if (const Name *candidateName = e->name()) {
if (candidateName->match(referenceName))
return e;
}
}
}
}
}
return nullptr;
}
Enum *conditionEnum(const CppQuickFixInterface &interface, SwitchStatementAST *statement)
{
Block *block = statement->symbol;
Scope *scope = interface.semanticInfo().doc->scopeAt(block->line(), block->column());
TypeOfExpression typeOfExpression;
typeOfExpression.setExpandTemplates(true);
typeOfExpression.init(interface.semanticInfo().doc, interface.snapshot());
const QList<LookupItem> results = typeOfExpression(statement->condition,
interface.semanticInfo().doc,
scope);
return findEnum(results, typeOfExpression.context());
}
} // anonymous namespace
void CompleteSwitchCaseStatement::doMatch(const CppQuickFixInterface &interface,
QuickFixOperations &result)
{
const QList<AST *> &path = interface.path();
if (path.isEmpty())
return;
// look for switch statement
for (int depth = path.size() - 1; depth >= 0; --depth) {
AST *ast = path.at(depth);
SwitchStatementAST *switchStatement = ast->asSwitchStatement();
if (switchStatement) {
if (!switchStatement->statement || !switchStatement->symbol)
return;
CompoundStatementAST *compoundStatement = switchStatement->statement->asCompoundStatement();
if (!compoundStatement) // we ignore pathologic case "switch (t) case A: ;"
return;
// look if the condition's type is an enum
if (Enum *e = conditionEnum(interface, switchStatement)) {
// check the possible enum values
QStringList values;
Overview prettyPrint;
for (int i = 0; i < e->memberCount(); ++i) {
if (Declaration *decl = e->memberAt(i)->asDeclaration())
values << prettyPrint.prettyName(LookupContext::fullyQualifiedName(decl));
}
// Get the used values
Block *block = switchStatement->symbol;
CaseStatementCollector caseValues(interface.semanticInfo().doc, interface.snapshot(),
interface.semanticInfo().doc->scopeAt(block->line(), block->column()));
const QStringList usedValues = caseValues(switchStatement);
// save the values that would be added
for (const QString &usedValue : usedValues)
values.removeAll(usedValue);
if (!values.isEmpty())
result << new CompleteSwitchCaseStatementOp(interface, depth,
compoundStatement, values);
return;
}
return;
}
}
}
namespace {
class ApplyDeclDefLinkOperation : public CppQuickFixOperation
{
public:
@@ -1060,8 +883,6 @@ void createCppQuickFixes()
new RearrangeParamDeclarationList;
new ReformatPointerDeclaration;
new CompleteSwitchCaseStatement;
new ApplyDeclDefLinkChanges;
registerInsertVirtualMethodsQuickfix();
@@ -1081,6 +902,7 @@ void createCppQuickFixes()
registerExtractLiteralAsParameterQuickfix();
registerConvertFromAndToPointerQuickfix();
registerAssignToLocalVariableQuickfix();
registerCompleteSwitchStatementQuickfix();
new ExtraRefactoringOperations;

View File

@@ -113,18 +113,6 @@ public:
void doMatch(const CppQuickFixInterface &interface, QuickFixOperations &result) override;
};
/*!
Adds missing case statements for "switch (enumVariable)"
*/
class CompleteSwitchCaseStatement: public CppQuickFixFactory
{
public:
CompleteSwitchCaseStatement() { setClangdReplacement({12}); }
private:
void doMatch(const CppQuickFixInterface &interface, QuickFixOperations &result) override;
};
/*!
Applies function signature changes
*/