From: Russ Cox <rsc@golang.org>
Date: Thu, 16 Apr 2009 05:38:09 +0000 (-0700)
Subject: panicln: emit just one newline
X-Git-Tag: weekly.2009-11-06~1817
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=1cb3b7d124cf86aefc3353b8c3ef962505ee5181;p=gostls13.git

panicln: emit just one newline

R=ken
OCL=27537
CL=27545
---

diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c
index a9606cfae4..1fa07dec03 100644
--- a/src/cmd/gc/walk.c
+++ b/src/cmd/gc/walk.c
@@ -271,7 +271,7 @@ loop:
 		if(top != Etop)
 			goto nottop;
 		walktype(n->left, Erv);
-		indir(n, list(prcompat(n->left, 1), nodpanic(n->lineno)));
+		indir(n, list(prcompat(n->left, 2), nodpanic(n->lineno)));
 		goto ret;
 
 	case OLITERAL:
@@ -1980,6 +1980,10 @@ ascompat(Type *dst, Type *src)
 	return 0;
 }
 
+// generate code for print
+//	fmt = 0: print
+//	fmt = 1: println
+//	fmt = 2: panicln (like println but no trailing newline)
 Node*
 prcompat(Node *n, int fmt)
 {
@@ -1995,7 +1999,7 @@ prcompat(Node *n, int fmt)
 
 loop:
 	if(l == N) {
-		if(fmt) {
+		if(fmt == 1) {
 			on = syslook("printnl", 0);
 			r = list(r, nod(OCALL, on, N));
 		}