commit a19cbea03af08f9e46392063a282479cd617d265
author Scott Graham <scottmg@google.com> Mon Feb 11 10:02:20 2019 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> Mon Feb 11 20:05:11 2019 +0000
tree 44ff0c9715f1ac89c0fd0a47f619d1799377bdc2
parent 2ead3c65f55bf85eac692337ed68ba68f7f1a8db

[gn][banjo] Annotate some expected fallthrough with __FALLTHROUGH

This tells new enough compilers that all is well.

ZX-3415 #comment [gn][banjo] Annotate some expected fallthrough with __FALLTHROUGH

Test: CQ
Change-Id: I266303a51ce55ac318ff363f6ad3f4fe93baa588

zircon/system/host/banjo/lib/lexer.cpp

diff --git a/zircon/system/host/banjo/lib/lexer.cpp b/zircon/system/host/banjo/lib/lexer.cpp
index 42cc9d2..859c6d5 100644
--- a/zircon/system/host/banjo/lib/lexer.cpp
+++ b/zircon/system/host/banjo/lib/lexer.cpp
@@ -7,6 +7,8 @@
 #include <assert.h>
 #include <ctype.h>
 
+#include <zircon/compiler.h>
+
 namespace banjo {
 
 namespace {
@@ -143,7 +145,7 @@
             // This escaping logic is incorrect for the input: "\\"
             if (last != '\\')
                 return Finish(Token::Kind::kStringLiteral);
-        // Fall through.
+        __FALLTHROUGH;
         default:
             last = next;
         }
@@ -224,7 +226,7 @@
             Consume();
             return Finish(Token::Kind::kArrow);
         }
-    // Fallthrough
+    __FALLTHROUGH;
     case '0':
     case '1':
     case '2':