llvm-project/clang/test/SemaObjC/self-comparison.m
Eli Friedman 5a722e92af Add self-comparison warnings for fields.
This expands very slightly what -Wtautological-compare considers to be
tautological to include implicit accesses to C++ fields and ObjC ivars.
I don't want to turn this into a full expression-identity check, but
these additions seem pretty well-contained, and maintain the theme
of checking for "x == x".

<rdar://problem/14431127>

llvm-svn: 190118
2013-09-06 03:13:09 +00:00

13 lines
232 B
Objective-C

// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
@interface A {
id xxx;
}
-(int)bar;
@end
@implementation A
-(int)bar {
return xxx == xxx; // expected-warning {{self-comparison always evaluates to true}}
}
@end