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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <memory>
#include <string>
#include <rtl/ustring.hxx>
#include <o3tl/typed_flags_set.hxx>
#define MACRO (1)
bool foo(int);
enum class EFoo { Bar };
struct S { operator bool(); };
enum class BrowseMode
{
Modules = 0x01,
Top = 0x02,
Bottom = 0x04,
Left = 0x08,
};
namespace o3tl
{
template <> struct typed_flags<BrowseMode> : is_typed_flags<BrowseMode, 0xf>
{
};
}
int main()
{
int x = 1;
x = ((2)); // expected-error {{parentheses around parentheses [loplugin:unnecessaryparen]}}
if ((foo(1))) foo(2); // expected-error {{parentheses immediately inside if statement [loplugin:unnecessaryparen]}}
foo((1)); // expected-error {{parentheses immediately inside single-arg call [loplugin:unnecessaryparen]}}
int y = (x); // expected-error {{parentheses immediately inside vardecl statement [loplugin:unnecessaryparen]}}
(void)y;
EFoo efoo = EFoo::Bar;
switch (efoo) {
case (EFoo::Bar): break; // expected-error {{parentheses immediately inside case statement [loplugin:unnecessaryparen]}}
}
int z = (y) ? 1 : 0; // expected-error {{unnecessary parentheses around identifier [loplugin:unnecessaryparen]}}
(void)z;
int v1 = (static_cast<short>(1)) + 1; // expected-error {{unnecessary parentheses around cast [loplugin:unnecessaryparen]}}
(void)v1;
// No warnings, used to silence -Wunreachable-code:
if ((false)) {
return 0;
}
x = (true) ? 0 : 1;
// More "no warnings", at least potentially used to silence -Wunreachable-code:
while ((false)) {
return 0;
}
for (; (false);) {
return 0;
}
x = foo(0) && (false) ? 0 : 1;
x = MACRO < (0) ? 0 : 1;
// cf. odd Clang -Wunreachable-code--suppression mechanism when the macro itself contains
// parentheses, causing the issue that lead to c421ac3f9432f2e9468d28447dc4c2e45b6f4da3
// "Revert loplugin:unnecessaryparen warning around integer literals"
int v2 = (1); // expected-error {{parentheses immediately inside vardecl statement [loplugin:unnecessaryparen]}}
(void)v2;
std::string v3;
v3 = (std::string("xx") + "xx"); // expected-error {{parentheses immediately inside assignment [loplugin:unnecessaryparen]}}
(void)v3;
S s1;
if ((s1)) { // expected-error {{parentheses immediately inside if statement [loplugin:unnecessaryparen]}}
return 0;
}
S s2;
if ((s2 = s1)) {
return 0;
}
(void) sizeof (int);
(void) sizeof (x); // expect no warning (for whatever reason; for symmetry with above case?)
// Expecting just one error, not reported twice during TraverseInitListExpr:
int a[] = {(x)}; // expected-error {{unnecessary parentheses around identifier [loplugin:unnecessaryparen]}}
(void) a;
(void) (+1); // expected-error {{unnecessary parentheses around signed numeric literal [loplugin:unnecessaryparen]}}
(void) (-1); // expected-error {{unnecessary parentheses around signed numeric literal [loplugin:unnecessaryparen]}}
// For simplicity's sake, even warn about pathological cases that would require adding
// whitespace when removing the parentheses (as is also necessary in other cases anyway, like
// "throw(x);"); it is unlikely that there are any actual occurrences of code like "-(-1)" that
// would benefit from the parentheses readability-wise, compared to "- -1":
(void) -(-1); // expected-error {{unnecessary parentheses around signed numeric literal [loplugin:unnecessaryparen]}}
char *p = nullptr;
delete (p); // expected-error {{parentheses immediately inside delete expr [loplugin:unnecessaryparen]}}
BrowseMode nBits = ( BrowseMode::Modules | BrowseMode::Top ); // expected-error {{parentheses immediately inside vardecl statement [loplugin:unnecessaryparen]}}
(void)nBits;
};
struct B { operator bool() const; };
struct N { bool operator !(); };
class Foo2
{
int* p;
B b;
N n;
int foo2()
{
return (p) ? 1 : 0; // expected-error {{unnecessary parentheses around member expr [loplugin:unnecessaryparen]}}
}
static int foo3(Foo2 & foo) {
(void) !(foo.p);
(void) !(foo.b);
(void) !(foo.n);
return (foo.p) ? 1 : 0;
}
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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