Jacek Caban : jscript: Fixed conflict in Block statement that caused problems with empty blocks.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 383de2d79a35aa4ea82eb8ddba2e4107a2b4afa3
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=383de2d79a35aa4ea82eb8ddba2e4107a2b4afa3

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Thu Oct  2 16:22:45 2008 +0200

jscript: Fixed conflict in Block statement that caused problems with empty blocks.

---

 dlls/jscript/parser.y      |    4 ++--
 dlls/jscript/tests/lang.js |    4 ++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/dlls/jscript/parser.y b/dlls/jscript/parser.y
index 98ee250..2123e9c 100644
--- a/dlls/jscript/parser.y
+++ b/dlls/jscript/parser.y
@@ -325,8 +325,8 @@ StatementList_opt
 
 /* ECMA-262 3rd Edition    12.1 */
 Block
-        : '{' StatementList_opt '}'
-                                { $$ = new_block_statement(ctx, $2); }
+        : '{' StatementList '}' { $$ = new_block_statement(ctx, $2); }
+        | '{' '}'               { $$ = new_block_statement(ctx, NULL) }
 
 /* ECMA-262 3rd Edition    12.2 */
 VariableStatement
diff --git a/dlls/jscript/tests/lang.js b/dlls/jscript/tests/lang.js
index d9c3689..c9d9455 100644
--- a/dlls/jscript/tests/lang.js
+++ b/dlls/jscript/tests/lang.js
@@ -175,6 +175,10 @@ if(true)
     tmp = 1;
 ok(tmp === 1, "tmp !== 1, if(true) not evaluated?");
 
+if(false) {
+}else {
+}
+
 var obj3 = { prop1: 1,  prop2: typeof(false) };
 ok(obj3.prop1 === 1, "obj3.prop1 is not 1");
 ok(obj3.prop2 === "boolean", "obj3.prop2 is not \"boolean\"");