xref: /aosp_15_r20/external/clang/test/SemaCXX/switch-implicit-fallthrough-blocks.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify -fblocks -std=c++11 -Wimplicit-fallthrough %s
2*67e74705SXin Li 
fallthrough_in_blocks()3*67e74705SXin Li void fallthrough_in_blocks() {
4*67e74705SXin Li   void (^block)() = ^{
5*67e74705SXin Li     int x = 0;
6*67e74705SXin Li     switch (x) {
7*67e74705SXin Li     case 0:
8*67e74705SXin Li       x++;
9*67e74705SXin Li       [[clang::fallthrough]]; // no diagnostics
10*67e74705SXin Li     case 1:
11*67e74705SXin Li       x++;
12*67e74705SXin Li     default: // \
13*67e74705SXin Li         expected-warning{{unannotated fall-through between switch labels}} \
14*67e74705SXin Li         expected-note{{insert 'break;' to avoid fall-through}}
15*67e74705SXin Li       break;
16*67e74705SXin Li     }
17*67e74705SXin Li   };
18*67e74705SXin Li   block();
19*67e74705SXin Li }
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