V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
v8-fallthrough.h
1 // Copyright 2018 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_BASE_V8_FALLTHROUGH_H_
6 #define V8_BASE_V8_FALLTHROUGH_H_
7 
8 // When clang suggests inserting [[clang::fallthrough]], it first checks if
9 // it knows of a macro expanding to it, and if so suggests inserting the
10 // macro. This means that this macro must be used only in code internal
11 // to v8, so that v8's user code doesn't end up getting suggestions
12 // for V8_FALLTHROUGH instead of the user-specific fallthrough macro.
13 // So do not include this header in any of v8's public headers -- only
14 // use it in src/, not in include/.
15 #if defined(__clang__)
16 #define V8_FALLTHROUGH [[clang::fallthrough]] // NOLINT(whitespace/braces)
17 #else
18 #define V8_FALLTHROUGH
19 #endif
20 
21 #endif // V8_BASE_V8_FALLTHROUGH_H_