From patchwork Thu Sep  2 00:41:54 2010
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Subject: [gccgo] Change location of cast
Date: Wed, 01 Sep 2010 14:41:54 -0000
From: Ian Taylor <iant@google.com>
X-Patchwork-Id: 63430
Message-Id: <mcrmxs16kod.fsf@google.com>
To: gcc-patches@gcc.gnu.org, gofrontend-dev@googlegroups.com

This small gccgo patch changes the location of a cast T(v) from the
start of the type to the left parenthesis.  This is mainly for
convenience of the testsuite, and should be just as good if not better
for humans.

Ian


diff -r 21b3034688ff go/parse.cc
--- a/go/parse.cc	Wed Sep 01 17:38:32 2010 -0700
+++ b/go/parse.cc	Wed Sep 01 17:39:58 2010 -0700
@@ -2503,6 +2503,7 @@
 	ret = this->composite_lit(ret->type(), ret->location());
       else if (this->peek_token()->is_op(OPERATOR_LPAREN))
 	{
+	  source_location loc = this->location();
 	  this->advance_token();
 	  Expression* expr = this->expression(PRECEDENCE_NORMAL, false, true,
 					      NULL);
@@ -2512,7 +2513,7 @@
 	    this->advance_token();
 	  if (expr->is_error_expression())
 	    return expr;
-	  ret = Expression::make_cast(ret->type(), expr, ret->location());
+	  ret = Expression::make_cast(ret->type(), expr, loc);
 	}
     }