forked from OSchip/llvm-project
263 lines
7.2 KiB
C++
263 lines
7.2 KiB
C++
// RUN: %clang_cc1 -verify -fsyntax-only -std=c++11 -Wshadow-all %s
|
|
|
|
namespace {
|
|
int i; // expected-note {{previous declaration is here}}
|
|
}
|
|
|
|
namespace one {
|
|
namespace two {
|
|
int j; // expected-note {{previous declaration is here}}
|
|
typedef int jj; // expected-note 2 {{previous declaration is here}}
|
|
using jjj=int; // expected-note 2 {{previous declaration is here}}
|
|
}
|
|
}
|
|
|
|
namespace xx {
|
|
int m;
|
|
typedef int mm;
|
|
using mmm=int;
|
|
|
|
}
|
|
namespace yy {
|
|
int m;
|
|
typedef char mm;
|
|
using mmm=char;
|
|
}
|
|
|
|
using namespace one::two;
|
|
using namespace xx;
|
|
using namespace yy;
|
|
|
|
void foo() {
|
|
int i; // expected-warning {{declaration shadows a variable in namespace '(anonymous)'}}
|
|
int j; // expected-warning {{declaration shadows a variable in namespace 'one::two'}}
|
|
int m;
|
|
int mm;
|
|
int mmm;
|
|
}
|
|
|
|
class A {
|
|
static int data; // expected-note 1 {{previous declaration}}
|
|
// expected-note@+1 1 {{previous declaration}}
|
|
int field;
|
|
int f1, f2, f3, f4; // expected-note 8 {{previous declaration is here}}
|
|
|
|
typedef int a1; // expected-note 2 {{previous declaration}}
|
|
using a2=int; // expected-note 2 {{previous declaration}}
|
|
|
|
// The initialization is safe, but the modifications are not.
|
|
A(int f1, int f2, int f3, int f4) // expected-note-re 4 {{variable 'f{{[0-4]}}' is declared here}}
|
|
: f1(f1) {
|
|
f1 = 3; // expected-warning {{modifying constructor parameter 'f1' that shadows a field of 'A'}}
|
|
f1 = 4; // one warning per shadow
|
|
f2++; // expected-warning {{modifying constructor parameter 'f2' that shadows a field of 'A'}}
|
|
--f3; // expected-warning {{modifying constructor parameter 'f3' that shadows a field of 'A'}}
|
|
f4 += 2; // expected-warning {{modifying constructor parameter 'f4' that shadows a field of 'A'}}
|
|
}
|
|
|
|
// The initialization is safe, but the modifications are not.
|
|
// expected-warning-re@+1 4 {{constructor parameter 'f{{[0-4]}}' shadows the field 'f{{[0-9]}}' of 'A'}}
|
|
A(int f1, int f2, int f3, int f4, double overload_dummy) {}
|
|
|
|
void test() {
|
|
char *field; // expected-warning {{declaration shadows a field of 'A'}}
|
|
char *data; // expected-warning {{declaration shadows a static data member of 'A'}}
|
|
char *a1; // no warning
|
|
char *a2; // no warning
|
|
char *jj; // no warning
|
|
char *jjj; // no warning
|
|
}
|
|
|
|
void test2() {
|
|
typedef char field; // no warning
|
|
typedef char data; // no warning
|
|
typedef char a1; // expected-warning {{declaration shadows a typedef in 'A'}}
|
|
typedef char a2; // expected-warning {{declaration shadows a type alias in 'A'}}
|
|
typedef char jj; // expected-warning {{declaration shadows a typedef in namespace 'one::two'}}
|
|
typedef char jjj; // expected-warning {{declaration shadows a type alias in namespace 'one::two'}}
|
|
}
|
|
|
|
void test3() {
|
|
using field=char; // no warning
|
|
using data=char; // no warning
|
|
using a1=char; // expected-warning {{declaration shadows a typedef in 'A'}}
|
|
using a2=char; // expected-warning {{declaration shadows a type alias in 'A'}}
|
|
using jj=char; // expected-warning {{declaration shadows a typedef in namespace 'one::two'}}
|
|
using jjj=char; // expected-warning {{declaration shadows a type alias in namespace 'one::two'}}
|
|
}
|
|
};
|
|
|
|
struct path {
|
|
using value_type = char;
|
|
typedef char value_type2;
|
|
struct iterator {
|
|
using value_type = path; // no warning
|
|
typedef path value_type2; // no warning
|
|
};
|
|
};
|
|
|
|
|
|
// TODO: this should warn, <rdar://problem/5018057>
|
|
class B : A {
|
|
int data;
|
|
static int field;
|
|
};
|
|
|
|
// rdar://8900456
|
|
namespace rdar8900456 {
|
|
struct Foo {
|
|
static void Baz();
|
|
static void Baz1();
|
|
static void Baz2();
|
|
private:
|
|
int Bar;
|
|
};
|
|
|
|
void Foo::Baz() {
|
|
double Bar = 12; // Don't warn.
|
|
}
|
|
|
|
void Foo::Baz1() {
|
|
typedef int Bar; // Don't warn.
|
|
}
|
|
|
|
void Foo::Baz2() {
|
|
using Bar=int; // Don't warn.
|
|
}
|
|
}
|
|
|
|
// http://llvm.org/PR9160
|
|
namespace PR9160 {
|
|
struct V {
|
|
V(int);
|
|
};
|
|
struct S {
|
|
V v;
|
|
static void m() {
|
|
if (1) {
|
|
V v(0);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
extern int bob; // expected-note 1 {{previous declaration is here}}
|
|
typedef int bob1; // expected-note 2 {{previous declaration is here}}
|
|
using bob2=int; // expected-note 2 {{previous declaration is here}}
|
|
|
|
// rdar://8883302
|
|
void rdar8883302() {
|
|
extern int bob; // don't warn for shadowing.
|
|
}
|
|
|
|
void test8() {
|
|
int bob; // expected-warning {{declaration shadows a variable in the global namespace}}
|
|
int bob1; //no warning
|
|
int bob2; // no warning
|
|
}
|
|
|
|
void test9() {
|
|
typedef int bob; // no warning
|
|
typedef int bob1; // expected-warning {{declaration shadows a typedef in the global namespace}}
|
|
typedef int bob2; // expected-warning {{declaration shadows a type alias in the global namespace}}
|
|
}
|
|
|
|
void test10() {
|
|
using bob=int; // no warning
|
|
using bob1=int; // expected-warning {{declaration shadows a typedef in the global namespace}}
|
|
using bob2=int; // expected-warning {{declaration shadows a type alias in the global namespace}}
|
|
}
|
|
|
|
namespace rdar29067894 {
|
|
|
|
void avoidWarningWhenRedefining(int b) { // expected-note {{previous definition is here}}
|
|
int a = 0; // expected-note {{previous definition is here}}
|
|
int a = 1; // expected-error {{redefinition of 'a'}}
|
|
int b = 2; // expected-error {{redefinition of 'b'}}
|
|
|
|
using c=char; // expected-note {{previous definition is here}}
|
|
using c=int; // expected-error {{type alias redefinition with different types ('int' vs 'char')}}
|
|
|
|
typedef char d; // expected-note {{previous definition is here}}
|
|
typedef int d; // expected-error {{typedef redefinition with different types ('int' vs 'char')}}
|
|
|
|
using e=char; // expected-note {{previous definition is here}}
|
|
typedef int e; // expected-error {{type alias redefinition with different types ('int' vs 'char')}}
|
|
|
|
int f; // expected-note {{previous definition is here}}
|
|
using f=int; // expected-error {{redefinition of 'f'}}
|
|
|
|
using g=int; // expected-note {{previous definition is here}}
|
|
int g; // expected-error {{redefinition of 'g'}}
|
|
|
|
typedef int h; // expected-note {{previous definition is here}}
|
|
int h; // expected-error {{redefinition of 'h'}}
|
|
|
|
int k; // expected-note {{previous definition is here}}
|
|
typedef int k; // expected-error {{redefinition of 'k'}}
|
|
|
|
using l=char; // no warning or error.
|
|
using l=char; // no warning or error.
|
|
typedef char l; // no warning or error.
|
|
|
|
typedef char n; // no warning or error.
|
|
typedef char n; // no warning or error.
|
|
using n=char; // no warning or error.
|
|
}
|
|
|
|
}
|
|
|
|
extern "C" {
|
|
typedef int externC; // expected-note {{previous declaration is here}}
|
|
}
|
|
void handleLinkageSpec() {
|
|
typedef void externC; // expected-warning {{declaration shadows a typedef in the global namespace}}
|
|
}
|
|
|
|
namespace PR33947 {
|
|
void f(int a) {
|
|
struct A {
|
|
void g(int a) {}
|
|
A() { int a; }
|
|
};
|
|
}
|
|
}
|
|
|
|
namespace PR34120 {
|
|
struct A {
|
|
int B; // expected-note {{declared here}}
|
|
};
|
|
|
|
class C : public A {
|
|
void D(int B) {} // expected-warning {{parameter 'B' shadows member inherited from type 'A'}}
|
|
void E() {
|
|
extern void f(int B); // Ok
|
|
}
|
|
};
|
|
|
|
class Private {
|
|
int B;
|
|
};
|
|
class Derived : Private {
|
|
void D(int B) {} // Ok
|
|
};
|
|
|
|
struct Static {
|
|
static int B;
|
|
};
|
|
|
|
struct Derived2 : Static {
|
|
void D(int B) {}
|
|
};
|
|
}
|
|
|
|
int PR24718;
|
|
enum class X { PR24718 }; // Ok, not shadowing
|
|
|
|
struct PR24718_1;
|
|
struct PR24718_2 {
|
|
enum {
|
|
PR24718_1 // Does not shadow a type.
|
|
};
|
|
};
|