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exp/template: ensure that a valid Set is returned even on error.

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R=r
CC=golang-dev
https://golang.org/cl/4838044
This commit is contained in:
Roger Peppe 2011-08-01 09:02:06 -07:00 committed by Rob Pike
parent 317911c9ff
commit 5c5ce6d24d
1 changed files with 3 additions and 0 deletions
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3
src/pkg/exp/template/helper.go
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@ -97,6 +97,7 @@ func (s *Set) ParseFile(filenames ...string) (*Set, os.Error) {
// named files. Each file must be individually parseable.
func ParseSetFile(filenames ...string) (*Set, os.Error) {
s := new(Set)
s.init()
for _, filename := range filenames {
b, err := ioutil.ReadFile(filename)
if err != nil {
@ -193,6 +194,7 @@ func (s *Set) ParseTemplateFiles(pattern string) (*Set, os.Error) {
// encountered.
func ParseTemplateFile(filenames ...string) (*Set, os.Error) {
set := new(Set)
set.init()
for _, filename := range filenames {
t, err := ParseFile(filename)
if err != nil {
@ -217,6 +219,7 @@ func ParseTemplateFile(filenames ...string) (*Set, os.Error) {
// encountered.
func ParseTemplateFiles(pattern string) (*Set, os.Error) {
set := new(Set)
set.init()
filenames, err := filepath.Glob(pattern)
if err != nil {
return set, err