diff options
Diffstat (limited to 'src/pkg/text/template/exec.go')
| -rw-r--r-- | src/pkg/text/template/exec.go | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/pkg/text/template/exec.go b/src/pkg/text/template/exec.go index b9c03d8f0..12c40b70f 100644 --- a/src/pkg/text/template/exec.go +++ b/src/pkg/text/template/exec.go @@ -5,6 +5,7 @@ package template import ( + "bytes" "fmt" "io" "reflect" @@ -125,8 +126,23 @@ func (t *Template) Execute(wr io.Writer, data interface{}) (err error) { wr: wr, vars: []variable{{"$", value}}, } + t.init() if t.Tree == nil || t.Root == nil { - state.errorf("%q is an incomplete or empty template", t.name) + var b bytes.Buffer + for name, tmpl := range t.tmpl { + if tmpl.Tree == nil || tmpl.Root == nil { + continue + } + if b.Len() > 0 { + b.WriteString(", ") + } + fmt.Fprintf(&b, "%q", name) + } + var s string + if b.Len() > 0 { + s = "; defined templates are: " + b.String() + } + state.errorf("%q is an incomplete or empty template%s", t.Name(), s) } state.walk(value, t.Root) return |