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Make ternary more forgiving of "interesting" boolean-like values

This commit is contained in:
Tianon Gravi 2016-06-02 17:30:32 -07:00
parent 29dc82bbab
commit 5e6bbb37cb
1 changed files with 18 additions and 2 deletions
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20
pkg/templatelib/lib.go
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@ -73,8 +73,24 @@ var FuncMap = template.FuncMap{
"hasPrefix": swapStringsFuncBoolArgsOrder(strings.HasPrefix),
"hasSuffix": swapStringsFuncBoolArgsOrder(strings.HasSuffix),
"ternary": func(truthy interface{}, falsey interface{}, val bool) interface{} {
if val {
"ternary": func(truthy interface{}, falsey interface{}, val interface{}) interface{} {
v := reflect.ValueOf(val)
var t bool
switch v.Kind() {
case reflect.Bool:
t = v.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
t = v.Int() != 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
t = v.Uint() != 0
case reflect.Float32, reflect.Float64:
t = v.Float() != 0
default:
t = !v.IsNil()
}
if t {
return truthy
} else {
return falsey