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authorArgyrios Kyrtzidis <akyrtzi@gmail.com>2011-10-05 21:28:06 +0000
committerArgyrios Kyrtzidis <akyrtzi@gmail.com>2011-10-05 21:28:06 +0000
commit0d94094cdbfd531ec96b719e0c8339aff7463ff9 (patch)
tree2b8b71bb5ad25849cc0c90224ff125c30e2ea79a
parent88934e85f81abdc4fb5202325252be3bcab5ebf0 (diff)
Fix crash when using archaic protocol, rdar://10238337
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141215 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/AST/SelectorLocationsKind.cpp5
-rw-r--r--test/SemaObjC/protocol-archane.m7
2 files changed, 11 insertions, 1 deletions
diff --git a/lib/AST/SelectorLocationsKind.cpp b/lib/AST/SelectorLocationsKind.cpp
index 9a44b387dd..671207a7f2 100644
--- a/lib/AST/SelectorLocationsKind.cpp
+++ b/lib/AST/SelectorLocationsKind.cpp
@@ -54,8 +54,11 @@ SourceLocation getArgLoc<Expr>(Expr *Arg) {
template <>
SourceLocation getArgLoc<ParmVarDecl>(ParmVarDecl *Arg) {
+ SourceLocation Loc = Arg->getLocStart();
+ if (Loc.isInvalid())
+ return Loc;
// -1 to point to left paren of the method parameter's type.
- return Arg->getLocStart().getLocWithOffset(-1);
+ return Loc.getLocWithOffset(-1);
}
template <typename T>
diff --git a/test/SemaObjC/protocol-archane.m b/test/SemaObjC/protocol-archane.m
index 138c43d1a8..992d3e4798 100644
--- a/test/SemaObjC/protocol-archane.m
+++ b/test/SemaObjC/protocol-archane.m
@@ -33,3 +33,10 @@ typedef struct objc_class *Class;
Class <SomeProtocol> UnfortunateGCCExtension;
+// rdar://10238337
+@protocol Broken @end
+@interface Crash @end
+@implementation Crash
+- (void)crashWith:(<Broken>)a { // expected-warning {{protocol qualifiers without 'id' is archaic}}
+}
+@end