From da46f3b5dacd300ec95a7baa3fb24d5ca2cdf920 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 25 Jan 2008 19:37:24 +0000
Subject: [PATCH] First half of a fix for the "objc message send in
 initializer" bug.  This only handles message sends with typenames to start
 with.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@46366 91177308-0d34-0410-b5e6-96231b3b80d8
---
 Parse/ParseInit.cpp     | 17 ++++++++++++++++-
 test/Parser/objc-init.m | 13 +++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 test/Parser/objc-init.m

diff --git a/Parse/ParseInit.cpp b/Parse/ParseInit.cpp
index cf8293e009..9c5b6d8921 100644
--- a/Parse/ParseInit.cpp
+++ b/Parse/ParseInit.cpp
@@ -86,9 +86,24 @@ Parser::ExprResult Parser::ParseInitializerWithPotentialDesignator() {
     case tok::l_square: {
       // array-designator: '[' constant-expression ']'
       // array-designator: '[' constant-expression '...' constant-expression ']'
+      // When designation is empty, this can be '[' objc-message-expr ']'.  Note
+      // that we also have the case of [4][foo bar], which is the gnu designator
+      // extension + objc message send.
       SourceLocation StartLoc = ConsumeBracket();
       
-      ExprResult Idx = ParseConstantExpression();
+      // If Objective-C is enabled and this is a typename or other identifier
+      // receiver, parse this as a message send expression.
+      if (getLang().ObjC1 && isTokObjCMessageIdentifierReceiver()) {
+        IdentifierInfo *Name = Tok.getIdentifierInfo();
+        ConsumeToken();
+        ExprResult R = ParseObjCMessageExpressionBody(StartLoc, Name, 0);
+        return ParsePostfixExpressionSuffix(R);
+      }
+      
+      // Note that we parse this as an assignment expression, not a constant
+      // expression (allowing *=, =, etc).  Sema needs to validate that the
+      // expression is a constant.
+      ExprResult Idx = ParseAssignmentExpression();
       if (Idx.isInvalid) {
         SkipUntil(tok::r_square);
         return Idx;
diff --git a/test/Parser/objc-init.m b/test/Parser/objc-init.m
new file mode 100644
index 0000000000..43e6c2e26e
--- /dev/null
+++ b/test/Parser/objc-init.m
@@ -0,0 +1,13 @@
+// RUN: clang -fsyntax-only -verify %s
+// rdar://5707001
+
+@interface NSNumber;
+- () METH;
+
+@end
+
+int main() {
+	id objects[] = {[NSNumber METH]};
+	return 0;
+}
+
-- 
2.40.0