From: Alan Donovan <adonovan@google.com>
Date: Thu, 5 May 2016 21:56:58 +0000 (-0700)
Subject: go/token: document postcondition of SetLines
X-Git-Tag: go1.7beta1~314
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=5f83bf6053763801beb84a926cde7221874bc4f7;p=gostls13.git

go/token: document postcondition of SetLines

Change-Id: Ie163deade396b3e298a93845b9ca4d52333ea82a
Reviewed-on: https://go-review.googlesource.com/22831
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
---

diff --git a/src/go/token/position.go b/src/go/token/position.go
index 33751779a3..7306083b0d 100644
--- a/src/go/token/position.go
+++ b/src/go/token/position.go
@@ -164,6 +164,7 @@ func (f *File) MergeLine(line int) {
 // Each line offset must be larger than the offset for the previous line
 // and smaller than the file size; otherwise SetLines fails and returns
 // false.
+// Callers must not mutate the provided slice after SetLines returns.
 //
 func (f *File) SetLines(lines []int) bool {
 	// verify validity of lines table