[PATCH] D46905: [Attr] Don't print fake MSInheritance argument

[Joel E. Denny via Phabricator via cfe-commits]

jdenny created this revision.
jdenny added reviewers: aaron.ballman, rsmith, hfinkel.

This was discovered at:

http://lists.llvm.org/pipermail/cfe-commits/Week-of-Mon-20180514/228390.html


https://reviews.llvm.org/D46905

Files:
  include/clang/Basic/Attr.td
  test/SemaCXX/attr-print.cpp


Index: test/SemaCXX/attr-print.cpp
===================================================================
--- test/SemaCXX/attr-print.cpp
+++ test/SemaCXX/attr-print.cpp
@@ -34,3 +34,12 @@
   // CHECK: void callableWhen() __attribute__((callable_when("unconsumed", "consumed")));
   void callableWhen()  __attribute__((callable_when("unconsumed", "consumed")));
 };
+
+// CHECK: class __single_inheritance SingleInheritance;
+class __single_inheritance SingleInheritance;
+
+// CHECK: class __multiple_inheritance MultipleInheritance;
+class __multiple_inheritance MultipleInheritance;
+
+// CHECK: class __virtual_inheritance VirtualInheritance;
+class __virtual_inheritance VirtualInheritance;
Index: include/clang/Basic/Attr.td
===================================================================
--- include/clang/Basic/Attr.td
+++ include/clang/Basic/Attr.td
@@ -184,7 +184,8 @@
 class AlignedArgument<string name, bit opt = 0> : Argument<name, opt>;
 
 // A bool argument with a default value
-class DefaultBoolArgument<string name, bit default> : BoolArgument<name, 1> {
+class DefaultBoolArgument<string name, bit default, bit fake = 0>
+    : BoolArgument<name, 1, fake> {
   bit Default = default;
 }
 
@@ -2617,7 +2618,7 @@
 
 def MSInheritance : InheritableAttr {
   let LangOpts = [MicrosoftExt];
-  let Args = [DefaultBoolArgument<"BestCase", 1>];
+  let Args = [DefaultBoolArgument<"BestCase", /*default*/1, /*fake*/1>];
   let Spellings = [Keyword<"__single_inheritance">,
                    Keyword<"__multiple_inheritance">,
                    Keyword<"__virtual_inheritance">,


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