freebsd-skq/test/SemaCXX/typo-correction.cpp

643 lines
23 KiB
C++

// RUN: %clang_cc1 -fspell-checking-limit 0 -verify -Wno-c++11-extensions %s
namespace PR21817{
int a(-rsing[2]); // expected-error {{undeclared identifier 'rsing'; did you mean 'using'?}}
// expected-error@-1 {{expected expression}}
}
struct errc {
int v_;
operator int() const {return v_;}
};
class error_condition
{
int _val_;
public:
error_condition() : _val_(0) {}
error_condition(int _val)
: _val_(_val) {}
template <class E>
error_condition(E _e) {
// make_error_condition must not be typo corrected to error_condition
// even though the first declaration of make_error_condition has not
// yet been encountered. This was a bug in the first version of the type
// name typo correction patch that wasn't noticed until building LLVM with
// Clang failed.
*this = make_error_condition(_e);
}
};
inline error_condition make_error_condition(errc _e) {
return error_condition(static_cast<int>(_e));
}
// Prior to the introduction of a callback object to further filter possible
// typo corrections, this example would not trigger a suggestion as "base_type"
// is a closer match to "basetype" than is "BaseType" but "base_type" does not
// refer to a base class or non-static data member.
struct BaseType { };
struct Derived : public BaseType { // expected-note {{base class 'BaseType' specified here}}
static int base_type; // expected-note {{'base_type' declared here}}
Derived() : basetype() {} // expected-error{{initializer 'basetype' does not name a non-static data member or base class; did you mean the base class 'BaseType'?}}
};
// Test the improvement from passing a callback object to CorrectTypo in
// the helper function LookupMemberExprInRecord.
int get_type(struct Derived *st) {
return st->Base_Type; // expected-error{{no member named 'Base_Type' in 'Derived'; did you mean 'base_type'?}}
}
// In this example, somename should not be corrected to the cached correction
// "some_name" since "some_name" is a class and a namespace name is needed.
class some_name {}; // expected-note {{'some_name' declared here}}
somename Foo; // expected-error {{unknown type name 'somename'; did you mean 'some_name'?}}
namespace SomeName {} // expected-note {{namespace 'SomeName' defined here}}
using namespace somename; // expected-error {{no namespace named 'somename'; did you mean 'SomeName'?}}
// Without the callback object, CorrectTypo would choose "field1" as the
// correction for "fielda" as it is closer than "FieldA", but that correction
// would be later discarded by the caller and no suggestion would be given.
struct st {
struct {
int field1;
};
double FieldA; // expected-note{{'FieldA' declared here}}
};
st var = { .fielda = 0.0 }; // expected-error{{field designator 'fielda' does not refer to any field in type 'st'; did you mean 'FieldA'?}}
// Test the improvement from passing a callback object to CorrectTypo in
// Sema::BuildCXXNestedNameSpecifier. And also for the improvement by doing
// so in Sema::getTypeName.
typedef char* another_str; // expected-note{{'another_str' declared here}}
namespace AnotherStd { // expected-note{{'AnotherStd' declared here}}
class string {};
}
another_std::string str; // expected-error{{use of undeclared identifier 'another_std'; did you mean 'AnotherStd'?}}
another_str *cstr = new AnotherStr; // expected-error{{unknown type name 'AnotherStr'; did you mean 'another_str'?}}
// Test the improvement from passing a callback object to CorrectTypo in
// Sema::ActOnSizeofParameterPackExpr.
char* TireNames;
template<typename ...TypeNames> struct count { // expected-note{{parameter pack 'TypeNames' declared here}}
static const unsigned value = sizeof...(TyreNames); // expected-error{{'TyreNames' does not refer to the name of a parameter pack; did you mean 'TypeNames'?}}
};
// Test the typo-correction callback in Sema::DiagnoseUnknownTypeName.
namespace unknown_type_test {
class StreamOut {}; // expected-note 2 {{'StreamOut' declared here}}
long stream_count; // expected-note 2 {{'stream_count' declared here}}
};
unknown_type_test::stream_out out; // expected-error{{no type named 'stream_out' in namespace 'unknown_type_test'; did you mean 'StreamOut'?}}
// Demonstrate a case where using only the cached value returns the wrong thing
// when the cached value was the result of a previous callback object that only
// accepts a subset of the current callback object.
namespace cache_invalidation_test {
using namespace unknown_type_test;
void bar(long i);
void before_caching_classname() {
bar((stream_out)); // expected-error{{use of undeclared identifier 'stream_out'; did you mean 'stream_count'?}}
}
stream_out out; // expected-error{{unknown type name 'stream_out'; did you mean 'StreamOut'?}}
void after_caching_classname() {
bar((stream_out)); // expected-error{{use of undeclared identifier 'stream_out'; did you mean 'stream_count'?}}
}
}
// Test the typo-correction callback in Sema::DiagnoseInvalidRedeclaration.
struct BaseDecl {
void add_in(int i);
};
struct TestRedecl : public BaseDecl {
void add_it(int i); // expected-note{{'add_it' declared here}}
};
void TestRedecl::add_in(int i) {} // expected-error{{out-of-line definition of 'add_in' does not match any declaration in 'TestRedecl'; did you mean 'add_it'?}}
// Test the improved typo correction for the Parser::ParseCastExpr =>
// Sema::ActOnIdExpression => Sema::DiagnoseEmptyLookup call path.
class SomeNetMessage; // expected-note 2{{'SomeNetMessage'}}
class Message {};
void foo(Message&);
void foo(SomeNetMessage&);
void doit(void *data) {
Message somenetmsg; // expected-note{{'somenetmsg' declared here}}
foo(somenetmessage); // expected-error{{use of undeclared identifier 'somenetmessage'; did you mean 'somenetmsg'?}}
foo((somenetmessage)data); // expected-error{{unknown type name 'somenetmessage'; did you mean 'SomeNetMessage'?}} expected-error{{incomplete type}}
}
// Test the typo-correction callback in BuildRecoveryCallExpr.
// Solves the main issue in PR 9320 of suggesting corrections that take the
// wrong number of arguments.
void revoke(const char*); // expected-note 2{{'revoke' declared here}}
void Test() {
Invoke(); // expected-error{{use of undeclared identifier 'Invoke'}}
Invoke("foo"); // expected-error{{use of undeclared identifier 'Invoke'; did you mean 'revoke'?}}
Invoke("foo", "bar"); // expected-error{{use of undeclared identifier 'Invoke'}}
}
void Test2(void (*invoke)(const char *, int)) { // expected-note{{'invoke' declared here}}
Invoke(); // expected-error{{use of undeclared identifier 'Invoke'}}
Invoke("foo"); // expected-error{{use of undeclared identifier 'Invoke'; did you mean 'revoke'?}}
Invoke("foo", 7); // expected-error{{use of undeclared identifier 'Invoke'; did you mean 'invoke'?}}
Invoke("foo", 7, 22); // expected-error{{use of undeclared identifier 'Invoke'}}
}
void provoke(const char *x, bool y=false) {} // expected-note 2{{'provoke' declared here}}
void Test3() {
Provoke(); // expected-error{{use of undeclared identifier 'Provoke'}}
Provoke("foo"); // expected-error{{use of undeclared identifier 'Provoke'; did you mean 'provoke'?}}
Provoke("foo", true); // expected-error{{use of undeclared identifier 'Provoke'; did you mean 'provoke'?}}
Provoke("foo", 7, 22); // expected-error{{use of undeclared identifier 'Provoke'}}
}
// PR 11737 - Don't try to typo-correct the implicit 'begin' and 'end' in a
// C++11 for-range statement.
struct R {};
bool begun(R);
void RangeTest() {
for (auto b : R()) {} // expected-error {{invalid range expression of type 'R'}}
}
// PR 12019 - Avoid infinite mutual recursion in DiagnoseInvalidRedeclaration
// by not trying to typo-correct a method redeclaration to declarations not
// in the current record.
class Parent {
void set_types(int index, int value);
void add_types(int value);
};
class Child: public Parent {};
void Child::add_types(int value) {} // expected-error{{out-of-line definition of 'add_types' does not match any declaration in 'Child'}}
// Fix the callback based filtering of typo corrections within
// Sema::ActOnIdExpression by Parser::ParseCastExpression to allow type names as
// potential corrections for template arguments.
namespace clash {
class ConstructExpr {}; // expected-note 2{{'clash::ConstructExpr' declared here}}
}
class ClashTool {
bool HaveConstructExpr();
template <class T> T* getExprAs();
void test() {
ConstructExpr *expr = // expected-error{{unknown type name 'ConstructExpr'; did you mean 'clash::ConstructExpr'?}}
getExprAs<ConstructExpr>(); // expected-error{{unknown type name 'ConstructExpr'; did you mean 'clash::ConstructExpr'?}}
}
};
namespace test1 {
struct S {
struct Foobar *f; // expected-note{{'Foobar' declared here}}
};
test1::FooBar *b; // expected-error{{no type named 'FooBar' in namespace 'test1'; did you mean 'Foobar'?}}
}
namespace ImplicitInt {
void f(int, unsinged); // expected-error{{did you mean 'unsigned'}}
struct S {
unsinged : 4; // expected-error{{did you mean 'unsigned'}}
};
}
namespace PR13051 {
template<typename T> struct S {
template<typename U> void f();
operator bool() const;
};
void foo(); // expected-note{{'foo' declared here}}
void g(void(*)()); // expected-note{{candidate function not viable}}
void g(bool(S<int>::*)() const); // expected-note{{candidate function not viable}}
void test() {
g(&S<int>::tempalte f<int>); // expected-error{{did you mean 'template'?}} \
// expected-error{{no matching function for call to 'g'}}
g(&S<int>::opeartor bool); // expected-error{{did you mean 'operator'?}}
g(&S<int>::foo); // expected-error{{no member named 'foo' in 'PR13051::S<int>'; did you mean simply 'foo'?}}
}
}
inf f(doulbe); // expected-error{{'int'}} expected-error{{'double'}}
namespace PR6325 {
class foo { }; // expected-note{{'foo' declared here}}
// Note that for this example (pulled from the PR), if keywords are not excluded
// as correction candidates then no suggestion would be given; correcting
// 'boo' to 'bool' is the same edit distance as correcting 'boo' to 'foo'.
class bar : boo { }; // expected-error{{unknown class name 'boo'; did you mean 'foo'?}}
}
namespace outer {
void somefunc(); // expected-note{{'::outer::somefunc' declared here}}
void somefunc(int, int); // expected-note{{'::outer::somefunc' declared here}}
namespace inner {
void somefunc(int) {
someFunc(); // expected-error{{use of undeclared identifier 'someFunc'; did you mean '::outer::somefunc'?}}
someFunc(1, 2); // expected-error{{use of undeclared identifier 'someFunc'; did you mean '::outer::somefunc'?}}
}
}
}
namespace b6956809_test1 {
struct A {};
struct B {};
struct S1 {
void method(A*); // no note here
void method(B*); // expected-note{{'method' declared here}}
};
void test1() {
B b;
S1 s;
s.methodd(&b); // expected-error{{no member named 'methodd' in 'b6956809_test1::S1'; did you mean 'method'}}
}
struct S2 {
S2();
void method(A*) const;
private:
void method(B*);
};
void test2() {
B b;
const S2 s;
s.methodd(&b); // expected-error-re{{no member named 'methodd' in 'b6956809_test1::S2'{{$}}}}
}
}
namespace b6956809_test2 {
template<typename T> struct Err { typename T::error n; }; // expected-error{{type 'void *' cannot be used prior to '::' because it has no members}}
struct S {
template<typename T> typename Err<T>::type method(T); // expected-note{{in instantiation of template class 'b6956809_test2::Err<void *>' requested here}}
template<typename T> int method(T *); // expected-note{{'method' declared here}}
};
void test() {
S s;
int k = s.methodd((void*)0); // expected-error{{no member named 'methodd' in 'b6956809_test2::S'; did you mean 'method'?}} expected-note{{while substituting deduced template arguments into function template 'method' [with T = void *]}}
}
}
namespace PR12951 {
// If there are two corrections that have the same identifier and edit distance
// and only differ by their namespaces, don't suggest either as a correction
// since both are equally likely corrections.
namespace foobar { struct Thing {}; }
namespace bazquux { struct Thing {}; }
void f() { Thing t; } // expected-error{{unknown type name 'Thing'}}
}
namespace bogus_keyword_suggestion {
void test() {
status = "OK"; // expected-error-re {{use of undeclared identifier 'status'{{$}}}}
return status; // expected-error-re {{use of undeclared identifier 'status'{{$}}}}
}
}
namespace PR13387 {
struct A {
void CreateFoo(float, float);
void CreateBar(float, float);
};
struct B : A {
using A::CreateFoo;
void CreateFoo(int, int); // expected-note {{'CreateFoo' declared here}}
};
void f(B &x) {
x.Createfoo(0,0); // expected-error {{no member named 'Createfoo' in 'PR13387::B'; did you mean 'CreateFoo'?}}
}
}
struct DataStruct {void foo();};
struct T {
DataStruct data_struct;
void f();
};
// should be void T::f();
void f() {
data_struct->foo(); // expected-error-re{{use of undeclared identifier 'data_struct'{{$}}}}
}
namespace PR12287 {
class zif {
void nab(int);
};
void nab(); // expected-note{{'::PR12287::nab' declared here}}
void zif::nab(int) {
nab(); // expected-error{{too few arguments to function call, expected 1, have 0; did you mean '::PR12287::nab'?}}
}
}
namespace TemplateFunction {
template <class T>
void A(T) { } // expected-note {{'::TemplateFunction::A' declared here}}
template <class T>
void B(T) { } // expected-note {{'::TemplateFunction::B' declared here}}
class Foo {
public:
void A(int, int) {}
void B() {}
};
void test(Foo F, int num) {
F.A(num); // expected-error {{too few arguments to function call, expected 2, have 1; did you mean '::TemplateFunction::A'?}}
F.B(num); // expected-error {{too many arguments to function call, expected 0, have 1; did you mean '::TemplateFunction::B'?}}
}
}
namespace using_suggestion_val_dropped_specifier {
void FFF() {} // expected-note {{'::using_suggestion_val_dropped_specifier::FFF' declared here}}
namespace N { }
using N::FFF; // expected-error {{no member named 'FFF' in namespace 'using_suggestion_val_dropped_specifier::N'; did you mean '::using_suggestion_val_dropped_specifier::FFF'?}}
}
namespace class_member_typo_corrections {
class Outer {
public:
class Inner {}; // expected-note {{'Outer::Inner' declared here}}
Inner MyMethod(Inner arg);
};
Inner Outer::MyMethod(Inner arg) { // expected-error {{unknown type name 'Inner'; did you mean 'Outer::Inner'?}}
return Inner();
}
class Result {
public:
enum ResultType {
ENTITY, // expected-note {{'Result::ENTITY' declared here}}
PREDICATE, // expected-note {{'Result::PREDICATE' declared here}}
LITERAL // expected-note {{'Result::LITERAL' declared here}}
};
ResultType type();
};
void test() {
Result result_cell;
switch (result_cell.type()) {
case ENTITY: // expected-error {{use of undeclared identifier 'ENTITY'; did you mean 'Result::ENTITY'?}}
case LITERAL: // expected-error {{use of undeclared identifier 'LITERAL'; did you mean 'Result::LITERAL'?}}
case PREDICAT: // expected-error {{use of undeclared identifier 'PREDICAT'; did you mean 'Result::PREDICATE'?}}
break;
}
}
class Figure {
enum ResultType {
SQUARE,
TRIANGLE,
CIRCLE
};
public:
ResultType type();
};
void testAccess() {
Figure obj;
switch (obj.type()) { // expected-warning {{enumeration values 'SQUARE', 'TRIANGLE', and 'CIRCLE' not handled in switch}}
case SQUARE: // expected-error-re {{use of undeclared identifier 'SQUARE'{{$}}}}
case TRIANGLE: // expected-error-re {{use of undeclared identifier 'TRIANGLE'{{$}}}}
case CIRCE: // expected-error-re {{use of undeclared identifier 'CIRCE'{{$}}}}
break;
}
}
}
long readline(const char *, char *, unsigned long);
void assign_to_unknown_var() {
deadline_ = 1; // expected-error-re {{use of undeclared identifier 'deadline_'{{$}}}}
}
namespace no_ns_before_dot {
namespace re2 {}
void test() {
req.set_check(false); // expected-error-re {{use of undeclared identifier 'req'{{$}}}}
}
}
namespace PR17394 {
class A {
protected:
long zzzzzzzzzz;
};
class B : private A {};
B zzzzzzzzzy<>; // expected-error {{expected ';' after top level declarator}}{}
}
namespace correct_fields_in_member_funcs {
struct S {
int my_member; // expected-note {{'my_member' declared here}}
void f() { my_menber = 1; } // expected-error {{use of undeclared identifier 'my_menber'; did you mean 'my_member'?}}
};
}
namespace PR17019 {
template<class F>
struct evil {
evil(F de) { // expected-note {{'de' declared here}}
de_; // expected-error {{use of undeclared identifier 'de_'; did you mean 'de'?}} \
// expected-warning {{expression result unused}}
}
~evil() {
de_->bar() // expected-error {{use of undeclared identifier 'de_'}}
}
};
void meow() {
evil<int> Q(0); // expected-note {{in instantiation of member function}}
}
}
namespace fix_class_name_qualifier {
class MessageHeaders {};
class MessageUtils {
public:
static void ParseMessageHeaders(int, int); // expected-note {{'MessageUtils::ParseMessageHeaders' declared here}}
};
void test() {
// No, we didn't mean to call MessageHeaders::MessageHeaders.
MessageHeaders::ParseMessageHeaders(5, 4); // expected-error {{no member named 'ParseMessageHeaders' in 'fix_class_name_qualifier::MessageHeaders'; did you mean 'MessageUtils::ParseMessageHeaders'?}}
}
}
namespace PR18213 { // expected-note {{'PR18213' declared here}}
struct WrapperInfo {
int i;
};
template <typename T> struct Wrappable {
static WrapperInfo kWrapperInfo;
};
// Note the space before "::PR18213" is intended and needed, as it highlights
// the actual typo, which is the leading "::".
// TODO: Suggest removing the "::" from "::PR18213" (the right correction)
// instead of incorrectly suggesting dropping "PR18213::WrapperInfo::".
template <>
PR18213::WrapperInfo ::PR18213::Wrappable<int>::kWrapperInfo = { 0 }; // expected-error {{no member named 'PR18213' in 'PR18213::WrapperInfo'; did you mean simply 'PR18213'?}} \
// expected-error {{C++ requires a type specifier for all declarations}}
}
namespace PR18651 {
struct {
int x;
} a, b;
int y = x; // expected-error-re {{use of undeclared identifier 'x'{{$}}}}
}
namespace PR18685 {
template <class C, int I, int J>
class SetVector {
public:
SetVector() {}
};
template <class C, int I>
class SmallSetVector : public SetVector<C, I, 8> {};
class foo {};
SmallSetVector<foo*, 2> fooSet;
}
PR18685::BitVector Map; // expected-error-re {{no type named 'BitVector' in namespace 'PR18685'{{$}}}}
namespace shadowed_template {
template <typename T> class Fizbin {}; // expected-note {{'::shadowed_template::Fizbin' declared here}}
class Baz {
int Fizbin();
// TODO: Teach the parser to recover from the typo correction instead of
// continuing to treat the template name as an implicit-int declaration.
Fizbin<int> qux; // expected-error {{unknown type name 'Fizbin'; did you mean '::shadowed_template::Fizbin'?}} \
// expected-error {{expected member name or ';' after declaration specifiers}}
};
}
namespace PR18852 {
void func() {
struct foo {
void bar() {}
};
bar(); // expected-error-re {{use of undeclared identifier 'bar'{{$}}}}
}
class Thread {
public:
void Start();
static void Stop(); // expected-note {{'Thread::Stop' declared here}}
};
class Manager {
public:
void Start(int); // expected-note {{'Start' declared here}}
void Stop(int); // expected-note {{'Stop' declared here}}
};
void test(Manager *m) {
// Don't suggest Thread::Start as a correction just because it has the same
// (unqualified) name and accepts the right number of args; this is a method
// call on an object in an unrelated class.
m->Start(); // expected-error-re {{too few arguments to function call, expected 1, have 0{{$}}}}
m->Stop(); // expected-error-re {{too few arguments to function call, expected 1, have 0{{$}}}}
Stop(); // expected-error {{use of undeclared identifier 'Stop'; did you mean 'Thread::Stop'?}}
}
}
namespace std {
class bernoulli_distribution {
public:
double p() const;
};
}
void test() {
// Make sure that typo correction doesn't suggest changing 'p' to
// 'std::bernoulli_distribution::p' as that is most likely wrong.
if (p) // expected-error-re {{use of undeclared identifier 'p'{{$}}}}
return;
}
namespace PR19681 {
struct TypoA {};
struct TypoB {
void test();
private:
template<typename T> void private_memfn(T); // expected-note{{declared here}}
};
void TypoB::test() {
// FIXME: should suggest 'PR19681::TypoB::private_memfn' instead of '::PR19681::TypoB::private_memfn'
(void)static_cast<void(TypoB::*)(int)>(&TypoA::private_memfn); // expected-error{{no member named 'private_memfn' in 'PR19681::TypoA'; did you mean '::PR19681::TypoB::private_memfn'?}}
}
}
namespace testWantFunctionLikeCasts {
long test(bool a) {
if (a)
return struc(5.7); // expected-error-re {{use of undeclared identifier 'struc'{{$}}}}
else
return lon(8.0); // expected-error {{use of undeclared identifier 'lon'; did you mean 'long'?}}
}
}
namespace testCXXDeclarationSpecifierParsing {
namespace test {
struct SomeSettings {}; // expected-note {{'test::SomeSettings' declared here}}
}
class Test {};
int bar() {
Test::SomeSettings some_settings; // expected-error {{no type named 'SomeSettings' in 'testCXXDeclarationSpecifierParsing::Test'; did you mean 'test::SomeSettings'?}}
}
}
namespace testNonStaticMemberHandling {
struct Foo {
bool usesMetadata; // expected-note {{'usesMetadata' declared here}}
};
int test(Foo f) {
if (UsesMetadata) // expected-error-re {{use of undeclared identifier 'UsesMetadata'{{$}}}}
return 5;
if (f.UsesMetadata) // expected-error {{no member named 'UsesMetadata' in 'testNonStaticMemberHandling::Foo'; did you mean 'usesMetadata'?}}
return 11;
return 0;
}
};
namespace testMemberExprDeclarationNameInfo {
// The AST should only have the corrected name with no mention of 'data_'.
void f(int);
struct S {
int data; // expected-note 2{{'data' declared here}}
void m_fn1() {
data_ // expected-error {{use of undeclared identifier 'data_'}}
[] = // expected-error {{expected expression}}
f(data_); // expected-error {{use of undeclared identifier 'data_'}}
}
};
}
namespace testArraySubscriptIndex {
struct S {
int data; // expected-note {{'data' declared here}}
void m_fn1() {
(+)[data_]; // expected-error{{expected expression}} expected-error {{use of undeclared identifier 'data_'; did you mean 'data'}}
}
};
}
namespace crash_has_include {
int has_include(int); // expected-note {{'has_include' declared here}}
// expected-error@+1 {{__has_include must be used within a preprocessing directive}}
int foo = __has_include(42); // expected-error {{use of undeclared identifier '__has_include'; did you mean 'has_include'?}}
}