commit 669d5d74b880a8497b92a3ec159145713f4d6519
author Sebastian Redl <sebastian.redl@getdesigned.at> Fri Nov 14 23:42:31 2008 +0000
committer Sebastian Redl <sebastian.redl@getdesigned.at> Fri Nov 14 23:42:31 2008 +0000
tree f6fddd3509e79e293d0d58c454ec569d3d3d3378
parent b0b847e8399898ce41116a32a76790caa4c3c19d

Implement parsing and semantic checking of the 'mutable' keyword.
Thanks to Doug for the review. Actual effects of mutable to follow.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59331 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Parse/DeclSpec.cpp

diff --git a/lib/Parse/DeclSpec.cpp b/lib/Parse/DeclSpec.cpp
index d61d6c5..e800761 100644
--- a/lib/Parse/DeclSpec.cpp
+++ b/lib/Parse/DeclSpec.cpp
@@ -44,6 +44,7 @@
   case DeclSpec::SCS_static:      return "static";
   case DeclSpec::SCS_auto:        return "auto";
   case DeclSpec::SCS_register:    return "register";
+  case DeclSpec::SCS_mutable:     return "mutable";
   }
 }
 
@@ -126,6 +127,7 @@
     return BadSpecifier( (SCS)StorageClassSpec, PrevSpec);
   StorageClassSpec = S;
   StorageClassSpecLoc = Loc;
+  assert((unsigned)S == StorageClassSpec && "SCS constants overflow bitfield");
   return false;
 }
 

lib/Parse/ParseDecl.cpp

diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 0c1080a..99bebe6 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -405,6 +405,7 @@
 ///         'static'
 ///         'auto'
 ///         'register'
+/// [C++]   'mutable'
 /// [GNU]   '__thread'
 ///       function-specifier: [C99 6.7.4]
 /// [C99]   'inline'
@@ -550,6 +551,9 @@
     case tok::kw_register:
       isInvalid = DS.SetStorageClassSpec(DeclSpec::SCS_register, Loc, PrevSpec);
       break;
+    case tok::kw_mutable:
+      isInvalid = DS.SetStorageClassSpec(DeclSpec::SCS_mutable, Loc, PrevSpec);
+      break;
     case tok::kw___thread:
       isInvalid = DS.SetStorageClassSpecThread(Loc, PrevSpec)*2;
       break;