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llvm-project/clang/test/FixIt/fixit.cpp

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// RUN: %clang_cc1 -pedantic -Wall -Wno-comment -verify -fcxx-exceptions -x c++ -std=c++98 %s
// RUN: cp %s %t-98
// RUN: not %clang_cc1 -pedantic -Wall -Wno-comment -fcxx-exceptions -fixit -x c++ -std=c++98 %t-98
// RUN: %clang_cc1 -fsyntax-only -pedantic -Wall -Werror -Wno-comment -fcxx-exceptions -x c++ -std=c++98 %t-98
// RUN: not %clang_cc1 -fsyntax-only -pedantic -fdiagnostics-parseable-fixits -x c++ -std=c++11 %s 2>&1 | FileCheck %s
// RUN: %clang_cc1 -pedantic -Wall -Wno-comment -verify -fcxx-exceptions -x c++ -std=c++11 %s
// RUN: cp %s %t-11
// RUN: not %clang_cc1 -pedantic -Wall -Wno-comment -fcxx-exceptions -fixit -x c++ -std=c++11 %t-11
// RUN: %clang_cc1 -fsyntax-only -pedantic -Wall -Werror -Wno-comment -fcxx-exceptions -x c++ -std=c++11 %t-11
/* This is a test of the various code modification hints that are
provided as part of warning or extension diagnostics. All of the
warnings will be fixed by -fixit, and the resulting file should
compile cleanly with -Werror -pedantic. */
struct C1 {
virtual void f();
static void g();
};
struct C2 : virtual public virtual C1 { }; // expected-error{{duplicate}}
virtual void C1::f() { } // expected-error{{'virtual' can only be specified inside the class definition}}
static void C1::g() { } // expected-error{{'static' can only be specified inside the class definition}}
template<int Value> struct CT { template<typename> struct Inner; }; // expected-note{{previous use is here}}
// FIXME: In C++11 this gets 'expected unqualified-id' which fixit can't fix.
// Probably parses as `CT<10> > 2 > ct;` rather than `CT<(10 >> 2)> ct;`.
#if __cplusplus < 201103L
CT<10 >> 2> ct; // expected-warning{{require parentheses}}
#endif
class C3 {
public:
C3(C3, int i = 0); // expected-error{{copy constructor must pass its first argument by reference}}
};
struct CT<0> { }; // expected-error{{'template<>'}}
template<> union CT<1> { }; // expected-error{{tag type}}
struct CT<2>::Inner<int> { }; // expected-error 2{{'template<>'}}
// Access declarations
class A {
protected:
int foo();
};
class B : public A {
#if __cplusplus >= 201103L
A::foo; // expected-error{{ISO C++11 does not allow access declarations}}
#else
A::foo; // expected-warning{{access declarations are deprecated}}
#endif
};
void f() throw(); // expected-note{{previous}}
void f(); // expected-error{{missing exception specification}}
namespace rdar7853795 {
struct A {
bool getNumComponents() const; // expected-note{{declared here}}
void dump() const {
getNumComponenets(); // expected-error{{use of undeclared identifier 'getNumComponenets'; did you mean 'getNumComponents'?}}
}
};
}
namespace rdar7796492 {
struct A { int x, y; A(); };
A::A()
: x(1) y(2) { // expected-error{{missing ',' between base or member initializers}}
}
}
// extra qualification on member
class C {
int C::foo(); // expected-error {{extra qualification}}
};
namespace rdar8488464 {
int x = 0;
int x1 &= 0; // expected-error {{invalid '&=' at end of declaration; did you mean '='?}}
int x2 *= 0; // expected-error {{invalid '*=' at end of declaration; did you mean '='?}}
int x3 += 0; // expected-error {{invalid '+=' at end of declaration; did you mean '='?}}
int x4 -= 0; // expected-error {{invalid '-=' at end of declaration; did you mean '='?}}
int x5 != 0; // expected-error {{invalid '!=' at end of declaration; did you mean '='?}}
int x6 /= 0; // expected-error {{invalid '/=' at end of declaration; did you mean '='?}}
int x7 %= 0; // expected-error {{invalid '%=' at end of declaration; did you mean '='?}}
int x8 <= 0; // expected-error {{invalid '<=' at end of declaration; did you mean '='?}}
int x9 <<= 0; // expected-error {{invalid '<<=' at end of declaration; did you mean '='?}}
int x10 >= 0; // expected-error {{invalid '>=' at end of declaration; did you mean '='?}}
int x11 >>= 0; // expected-error {{invalid '>>=' at end of declaration; did you mean '='?}}
int x12 ^= 0; // expected-error {{invalid '^=' at end of declaration; did you mean '='?}}
int x13 |= 0; // expected-error {{invalid '|=' at end of declaration; did you mean '='?}}
int x14 == 0; // expected-error {{invalid '==' at end of declaration; did you mean '='?}}
void f() {
int x = 0;
(void)x;
int x1 &= 0; // expected-error {{invalid '&=' at end of declaration; did you mean '='?}}
(void)x1;
int x2 *= 0; // expected-error {{invalid '*=' at end of declaration; did you mean '='?}}
(void)x2;
int x3 += 0; // expected-error {{invalid '+=' at end of declaration; did you mean '='?}}
(void)x3;
int x4 -= 0; // expected-error {{invalid '-=' at end of declaration; did you mean '='?}}
(void)x4;
int x5 != 0; // expected-error {{invalid '!=' at end of declaration; did you mean '='?}}
(void)x5;
int x6 /= 0; // expected-error {{invalid '/=' at end of declaration; did you mean '='?}}
(void)x6;
int x7 %= 0; // expected-error {{invalid '%=' at end of declaration; did you mean '='?}}
(void)x7;
int x8 <= 0; // expected-error {{invalid '<=' at end of declaration; did you mean '='?}}
(void)x8;
int x9 <<= 0; // expected-error {{invalid '<<=' at end of declaration; did you mean '='?}}
(void)x9;
int x10 >= 0; // expected-error {{invalid '>=' at end of declaration; did you mean '='?}}
(void)x10;
int x11 >>= 0; // expected-error {{invalid '>>=' at end of declaration; did you mean '='?}}
(void)x11;
int x12 ^= 0; // expected-error {{invalid '^=' at end of declaration; did you mean '='?}}
(void)x12;
int x13 |= 0; // expected-error {{invalid '|=' at end of declaration; did you mean '='?}}
(void)x13;
int x14 == 0; // expected-error {{invalid '==' at end of declaration; did you mean '='?}}
(void)x14;
if (int x = 0) { (void)x; }
if (int x1 &= 0) { (void)x1; } // expected-error {{invalid '&=' at end of declaration; did you mean '='?}}
if (int x2 *= 0) { (void)x2; } // expected-error {{invalid '*=' at end of declaration; did you mean '='?}}
if (int x3 += 0) { (void)x3; } // expected-error {{invalid '+=' at end of declaration; did you mean '='?}}
if (int x4 -= 0) { (void)x4; } // expected-error {{invalid '-=' at end of declaration; did you mean '='?}}
if (int x5 != 0) { (void)x5; } // expected-error {{invalid '!=' at end of declaration; did you mean '='?}}
if (int x6 /= 0) { (void)x6; } // expected-error {{invalid '/=' at end of declaration; did you mean '='?}}
if (int x7 %= 0) { (void)x7; } // expected-error {{invalid '%=' at end of declaration; did you mean '='?}}
if (int x8 <= 0) { (void)x8; } // expected-error {{invalid '<=' at end of declaration; did you mean '='?}}
if (int x9 <<= 0) { (void)x9; } // expected-error {{invalid '<<=' at end of declaration; did you mean '='?}}
if (int x10 >= 0) { (void)x10; } // expected-error {{invalid '>=' at end of declaration; did you mean '='?}}
if (int x11 >>= 0) { (void)x11; } // expected-error {{invalid '>>=' at end of declaration; did you mean '='?}}
if (int x12 ^= 0) { (void)x12; } // expected-error {{invalid '^=' at end of declaration; did you mean '='?}}
if (int x13 |= 0) { (void)x13; } // expected-error {{invalid '|=' at end of declaration; did you mean '='?}}
if (int x14 == 0) { (void)x14; } // expected-error {{invalid '==' at end of declaration; did you mean '='?}}
}
}
template <class A>
class F1 {
public:
template <int B>
class Iterator {
};
};
template<class T>
class F2 {
typename F1<T>:: /*template*/ Iterator<0> Mypos; // expected-error {{use 'template' keyword to treat 'Iterator' as a dependent template name}}
};
template <class T>
void f(){
typename F1<T>:: /*template*/ Iterator<0> Mypos; // expected-error {{use 'template' keyword to treat 'Iterator' as a dependent template name}}
}
// Tests for &/* fixits radar 7113438.
class AD {};
class BD: public AD {};
void test (BD &br) {
AD* aPtr;
BD b;
aPtr = b; // expected-error {{assigning to 'AD *' from incompatible type 'BD'; take the address with &}}
aPtr = br; // expected-error {{assigning to 'AD *' from incompatible type 'BD'; take the address with &}}
}
void foo1() const {} // expected-error {{non-member function cannot have 'const' qualifier}}
void foo2() volatile {} // expected-error {{non-member function cannot have 'volatile' qualifier}}
void foo3() const volatile {} // expected-error {{non-member function cannot have 'const volatile' qualifier}}
struct S { void f(int, char); };
int itsAComma,
itsAComma2 = 0,
oopsAComma(42), // expected-error {{expected ';' at end of declaration}}
AD oopsMoreCommas() {
static int n = 0, // expected-error {{expected ';' at end of declaration}}
static char c,
&d = c, // expected-error {{expected ';' at end of declaration}}
S s, // expected-error {{expected ';' at end of declaration}}
s.f(n, d);
AD ad, // expected-error {{expected ';' at end of declaration}}
return ad;
}
struct MoreAccidentalCommas {
int a : 5,
b : 7,
: 4, // expected-error {{expected ';' at end of declaration}}
char c, // expected-error {{expected ';' at end of declaration}}
double d, // expected-error {{expected ';' at end of declaration}}
MoreAccidentalCommas *next, // expected-error {{expected ';' at end of declaration}}
public:
int k, // expected-error {{expected ';' at end of declaration}}
friend void f(MoreAccidentalCommas) {}
int k2, // expected-error {{expected ';' at end of declaration}}
virtual void g(), // expected-error {{expected ';' at end of declaration}}
};
template<class T> struct Mystery;
template<class T> typedef Mystery<T>::type getMysteriousThing() { // \
expected-error {{function definition declared 'typedef'}} \
expected-error {{missing 'typename' prior to dependent}}
return Mystery<T>::get();
}
template<template<typename> Foo, // expected-error {{template template parameter requires 'class' after the parameter list}}
template<typename> typename Bar, // expected-warning {{template template parameter using 'typename' is a C++17 extension}}
template<typename> struct Baz> // expected-error {{template template parameter requires 'class' after the parameter list}}
void func();
namespace ShadowedTagType {
class Foo {
public:
enum Bar { X, Y };
void SetBar(Bar bar);
Bar Bar(); // expected-note 2 {{enum 'Bar' is hidden by a non-type declaration of 'Bar' here}}
private:
Bar bar_; // expected-error {{must use 'enum' tag to refer to type 'Bar' in this scope}}
};
void Foo::SetBar(Bar bar) { bar_ = bar; } // expected-error {{must use 'enum' tag to refer to type 'Bar' in this scope}}
}
#define NULL __null
char c = NULL; // expected-warning {{implicit conversion of NULL constant to 'char'}}
double dbl = NULL; // expected-warning {{implicit conversion of NULL constant to 'double'}}
namespace arrow_suggest {
template <typename T>
class wrapped_ptr {
public:
wrapped_ptr(T* ptr) : ptr_(ptr) {}
T* operator->() { return ptr_; }
private:
T *ptr_;
};
class Worker {
public:
void DoSomething();
};
void test() {
wrapped_ptr<Worker> worker(new Worker);
worker.DoSomething(); // expected-error {{no member named 'DoSomething' in 'arrow_suggest::wrapped_ptr<arrow_suggest::Worker>'; did you mean to use '->' instead of '.'?}}
}
} // namespace arrow_suggest
// Make sure fixing namespace-qualified identifiers functions properly with
// namespace-aware typo correction/
namespace redecl_typo {
namespace Foo {
void BeEvil(); // expected-note {{'BeEvil' declared here}}
}
namespace Bar {
namespace Foo {
bool isGood(); // expected-note {{'Bar::Foo::isGood' declared here}}
void beEvil();
}
}
bool Foo::isGood() { // expected-error {{out-of-line definition of 'isGood' does not match any declaration in namespace 'redecl_typo::Foo'; did you mean 'Bar::Foo::isGood'?}}
return true;
}
void Foo::beEvil() {} // expected-error {{out-of-line definition of 'beEvil' does not match any declaration in namespace 'redecl_typo::Foo'; did you mean 'BeEvil'?}}
}
// Test behavior when a template-id is ended by a token which starts with '>'.
namespace greatergreater {
template<typename T> struct S { S(); S(T); };
void f(S<int>=0); // expected-error {{a space is required between a right angle bracket and an equals sign (use '> =')}}
// FIXME: The fix-its here overlap so -fixit mode can't apply the second one.
//void f(S<S<int>>=S<int>());
struct Shr {
template<typename T> Shr(T);
template<typename T> void operator >>=(T);
};
template<template<typename>> struct TemplateTemplateParam; // expected-error {{requires 'class'}}
template<typename T> void t();
void g() {
void (*p)() = &t<int>;
(void)(&t<int>==p); // expected-error {{use '> ='}}
(void)(&t<int>>=p); // expected-error {{use '> >'}}
#if __cplusplus < 201103L
(void)(&t<S<int>>>=p); // expected-error {{use '> >'}}
(Shr)&t<S<int>>>>=p; // expected-error {{use '> >'}}
#endif
// FIXME: We correct this to '&t<int> > >= p;' not '&t<int> >>= p;'
//(Shr)&t<int>>>=p;
// FIXME: The fix-its here overlap.
//(void)(&t<S<int>>==p);
}
}
class foo {
static void test() {
(void)&i; // expected-error{{must explicitly qualify name of member function when taking its address}}
}
int i();
};
namespace dtor_fixit {
struct foo {
~bar() { } // expected-error {{undeclared identifier 'bar' in destructor name}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:6-[[@LINE-1]]:9}:"foo"
};
class bar { // expected-note {{found}}
~bar();
};
~bar::bar() {} // expected-error {{'~' in destructor name should be after nested name specifier}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:4}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:9-[[@LINE-2]]:9}:"~"
namespace N {
typedef foo T;
template <typename T> struct X {};
}
void f(foo *p, N::X<int> *x) {
p->~undeclared(); // expected-error {{undeclared}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:9-[[@LINE-1]]:19}:"foo"
p->~bar(); // expected-error {{does not match}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:9-[[@LINE-1]]:12}:"foo"
// FIXME: This is a bad fixit; it'd be better to suggest replacing 'foo'
// with 'T'.
p->N::T::~foo(); // expected-warning {{requires the name after '::~' to be found in the same scope as the name before}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:12-[[@LINE-1]]:12}:"::foo"
typedef foo baz; // expected-note {{found}}
p->dtor_fixit::foo::~baz(); // expected-warning {{only found in lexical scope}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:8-[[@LINE-1]]:25}:""
// FIXME: This is a bad fixit; it'd be better to suggest adding the
// template arguments.
x->N::X<int>::~X(); // expected-warning {{same scope}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:17-[[@LINE-1]]:17}:"::X"
}
}
namespace PR5066 {
template<typename T> struct X {};
X<int *p> x; // expected-error {{type-id cannot have a name}}
}
namespace PR5898 {
class A {
public:
const char *str();
};
const char* foo(A &x)
{
return x.str.(); // expected-error {{unexpected '.' in function call; perhaps remove the '.'?}}
}
bool bar(A x, const char *y) {
return foo->(x) == y; // expected-error {{unexpected '->' in function call; perhaps remove the '->'?}}
}
}
namespace PR15045 {
class Cl0 {
public:
int a;
};
int f() {
Cl0 c;
return c->a; // expected-error {{member reference type 'PR15045::Cl0' is not a pointer; did you mean to use '.'?}}
}
}
namespace curly_after_base_clause {
struct A { void f(); };
struct B : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
int i;
};
struct C : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
using A::f;
};
struct D : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
protected:
};
struct E : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
template<typename T> struct inner { };
};
struct F : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
F() { }
};
#if __cplusplus >= 201103L
struct G : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
constexpr G(int) { }
};
struct H : A // expected-error{{expected '{' after base class list}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:13-[[@LINE-1]]:13}:" {"
static_assert(true, "");
};
#endif
}
struct conversion_operator {
conversion_operator::* const operator int(); // expected-error {{put the complete type after 'operator'}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:3-[[@LINE-1]]:32}:""
// CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:44-[[@LINE-2]]:44}:" conversion_operator::* const"
};
struct const_zero_init {
int a;
};
const const_zero_init czi; // expected-error {{default initialization of an object of const type 'const const_zero_init'}}
// CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:26-[[@LINE-1]]:26}:"{}"
int use_czi = czi.a;
namespace dotPointerDestructor {
struct Bar {
~Bar();
};
void bar(Bar *o) {
o.~Bar(); // expected-error {{member reference type 'dotPointerDestructor::Bar *' is a pointer; did you mean to use '->'}}
} // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:4-[[@LINE-1]]:5}:"->"
}
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