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

109 lines
4.1 KiB
C++

// RUN: %clang_cc1 -verify -x c++ -std=c++98 %s
// RUN: not %clang_cc1 -fdiagnostics-parseable-fixits -x c++ -std=c++98 %s 2>&1 | FileCheck %s
struct S {
int n;
};
struct T {
T();
T(S, S);
int n;
};
struct U {
~U();
int n;
};
struct V {
~V();
};
struct W : V {
};
struct X : U {
};
int F1();
S F2();
namespace N {
void test() {
// CHECK: fix-it:"{{.*}}":{35:9-35:11}:" = {}"
S s1(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{39:9-39:10}:";"
// CHECK: fix-it:"{{.*}}":{40:7-40:9}:" = {}"
S s2, // expected-note {{change this ',' to a ';' to call 'F2'}}
F2(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{44:9-44:11}:""
// CHECK: fix-it:"{{.*}}":{45:9-45:11}:""
T t1(), // expected-warning {{function declaration}} expected-note {{remove parentheses}}
t2(); // expected-warning {{function declaration}} expected-note {{remove parentheses}}
// Suggest parentheses only around the first argument.
// CHECK: fix-it:"{{.*}}":{50:10-50:10}:"("
// CHECK: fix-it:"{{.*}}":{50:13-50:13}:")"
T t3(S(), S()); // expected-warning {{disambiguated as a function declaration}} expected-note {{add a pair of parentheses}}
// Check fixit position for pathological case
// CHECK: fix-it:"{{.*}}":{56:11-56:11}:"("
// CHECK: fix-it:"{{.*}}":{56:20-56:20}:")"
float k[1];
int l(int(k[0])); // expected-warning {{disambiguated as a function declaration}} expected-note {{add a pair of parentheses}}
// Don't emit warning and fixit because this must be a function declaration due to void return type.
typedef void VO;
VO m(int (*p)[4]);
// Don't emit warning and fixit because direct initializer is not permitted here.
if (int n(int())){} // expected-error {{function type is not allowed here}} expected-error {{condition must have an initializer}}
// CHECK: fix-it:"{{.*}}":{66:8-66:10}:" = {}"
U u(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{69:8-69:10}:""
V v(); // expected-warning {{function declaration}} expected-note {{remove parentheses}}
// CHECK: fix-it:"{{.*}}":{72:8-72:10}:""
W w(); // expected-warning {{function declaration}} expected-note {{remove parentheses}}
// TODO: Removing the parens here would not initialize U::n.
// Maybe suggest an " = X()" initializer for this case?
// Maybe suggest removing the parens anyway?
X x(); // expected-warning {{function declaration}}
// CHECK: fix-it:"{{.*}}":{80:11-80:13}:" = 0"
int n1(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{84:11-84:12}:";"
// CHECK: fix-it:"{{.*}}":{85:7-85:9}:" = 0"
int n2, // expected-note {{change this ',' to a ';' to call 'F1'}}
F1(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{88:13-88:15}:" = 0.0"
double d(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
typedef void *Ptr;
// CHECK: fix-it:"{{.*}}":{93:10-93:12}:" = 0"
Ptr p(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
#define NULL 0
// CHECK: fix-it:"{{.*}}":{97:10-97:12}:" = NULL"
Ptr p(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{100:11-100:13}:" = false"
bool b(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{103:11-103:13}:" = '\\0'"
char c(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
// CHECK: fix-it:"{{.*}}":{106:15-106:17}:" = L'\\0'"
wchar_t wc(); // expected-warning {{function declaration}} expected-note {{replace parentheses with an initializer}}
}
}