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authorNiall Sheridan <nsheridan@gmail.com>2017-04-10 21:18:42 +0100
committerNiall Sheridan <nsheridan@gmail.com>2017-04-10 21:38:33 +0100
commit30802e07b2d84fbc213b490d3402707dffe60096 (patch)
tree934aecb8f3582325dfd1aa6652193adac87d00db /vendor/github.com/mitchellh/mapstructure
parentda7638dc112c4c106e8929601b642d2ca4596cba (diff)
update dependencies
Diffstat (limited to 'vendor/github.com/mitchellh/mapstructure')
-rw-r--r--vendor/github.com/mitchellh/mapstructure/mapstructure.go30
1 files changed, 22 insertions, 8 deletions
diff --git a/vendor/github.com/mitchellh/mapstructure/mapstructure.go b/vendor/github.com/mitchellh/mapstructure/mapstructure.go
index 1595982..6dee0ef 100644
--- a/vendor/github.com/mitchellh/mapstructure/mapstructure.go
+++ b/vendor/github.com/mitchellh/mapstructure/mapstructure.go
@@ -69,6 +69,9 @@ type DecoderConfig struct {
// - empty array = empty map and vice versa
// - negative numbers to overflowed uint values (base 10)
// - slice of maps to a merged map
+ // - single values are converted to slices if required. Each
+ // element is weakly decoded. For example: "4" can become []int{4}
+ // if the target type is an int slice.
//
WeaklyTypedInput bool
@@ -584,17 +587,28 @@ func (d *Decoder) decodeSlice(name string, data interface{}, val reflect.Value)
valSlice := val
if valSlice.IsNil() || d.config.ZeroFields {
-
// Check input type
if dataValKind != reflect.Array && dataValKind != reflect.Slice {
- // Accept empty map instead of array/slice in weakly typed mode
- if d.config.WeaklyTypedInput && dataVal.Kind() == reflect.Map && dataVal.Len() == 0 {
- val.Set(reflect.MakeSlice(sliceType, 0, 0))
- return nil
- } else {
- return fmt.Errorf(
- "'%s': source data must be an array or slice, got %s", name, dataValKind)
+ if d.config.WeaklyTypedInput {
+ switch {
+ // Empty maps turn into empty slices
+ case dataValKind == reflect.Map:
+ if dataVal.Len() == 0 {
+ val.Set(reflect.MakeSlice(sliceType, 0, 0))
+ return nil
+ }
+
+ // All other types we try to convert to the slice type
+ // and "lift" it into it. i.e. a string becomes a string slice.
+ default:
+ // Just re-try this function with data as a slice.
+ return d.decodeSlice(name, []interface{}{data}, val)
+ }
}
+
+ return fmt.Errorf(
+ "'%s': source data must be an array or slice, got %s", name, dataValKind)
+
}
// Make a new slice to hold our result, same size as the original data.