From: Russ Cox <rsc@golang.org>
Date: Thu, 27 Mar 2014 18:05:14 +0000 (-0400)
Subject: regexp/syntax: remove InstLast
X-Git-Tag: go1.3beta1~253
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=ef3c0e7e61ba1a670d69144b5ad8318166490ae8;p=gostls13.git

regexp/syntax: remove InstLast

This was added by the one-pass CL (post Go 1.2)
so it can still be removed.

Removing because surely there will be new operations
added later, and we can't change the constant value
once we define it, so "last" is a bad concept to expose.

Nothing uses it.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/81160043
---

diff --git a/src/pkg/regexp/syntax/prog.go b/src/pkg/regexp/syntax/prog.go
index 5a0bc7f9b4..c4563ae752 100644
--- a/src/pkg/regexp/syntax/prog.go
+++ b/src/pkg/regexp/syntax/prog.go
@@ -36,7 +36,6 @@ const (
 	InstRune1
 	InstRuneAny
 	InstRuneAnyNotNL
-	InstLast
 )
 
 var instOpNames = []string{
@@ -54,7 +53,7 @@ var instOpNames = []string{
 }
 
 func (i InstOp) String() string {
-	if i >= InstLast {
+	if uint(i) >= uint(len(instOpNames)) {
 		return ""
 	}
 	return instOpNames[i]