From 13cbec33c1335c5e582360797dfce7601bf60206 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 7 May 2001 09:26:29 +0000
Subject: * parse.y (arg): "||=" should not warn for uninitialized instance  
 variables.

* eval.c (rb_eval): ditto.

* eval.c (eval): preserve and restore ruby_cref as well.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1371 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 parse.y | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

(limited to 'parse.y')

diff --git a/parse.y b/parse.y
index f57c942ee6..3b58fd6874 100644
--- a/parse.y
+++ b/parse.y
@@ -411,15 +411,15 @@ stmt		: kALIAS fitem {lex_state = EXPR_FNAME;} fitem
 		    {
 			$$ = node_assign($1, $3);
 		    }
-		| expr
-
-expr		: mlhs '=' mrhs
+		| mlhs '=' mrhs
 		    {
 			value_expr($3);
 			$1->nd_value = $3;
 			$$ = $1;
 		    }
-		| kRETURN ret_args
+		| expr
+
+expr		: kRETURN ret_args
 		    {
 			if (!compile_for_eval && !in_def && !in_single)
 			    yyerror("return appeared outside of method");
@@ -671,6 +671,9 @@ arg		: lhs '=' arg
 			if ($2 == tOROP) {
 			    $<node>3->nd_value = $4;
 			    $$ = NEW_OP_ASGN_OR(gettable($1), $<node>3);
+			    if (is_instance_id($1)) {
+				$$->nd_aid = $1;
+			    }
 			}
 			else if ($2 == tANDOP) {
 			    $<node>3->nd_value = $4;
@@ -903,14 +906,10 @@ arg		: lhs '=' arg
 		    }
 
 aref_args	: none
-		| command_call opt_nl
+		| command opt_nl
 		    {
 			$$ = NEW_LIST($1);
 		    }
-		| args ',' command_call opt_nl
-		    {
-			$$ = list_append($1, $3);
-		    }
 		| args trailer
 		    {
 			$$ = $1;
@@ -954,10 +953,6 @@ call_args	: command
 		    {
 			$$ = NEW_LIST($1);
 		    }
-		| args ',' command
-		    {
-			$$ = list_append($1, $3);
-		    }
 		| args opt_block_arg
 		    {
 			$$ = arg_blk_pass($1, $2);
-- 
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