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jsonpath: Handle interface{}(nil) as empty array

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This commit is contained in:
Clayton Coleman 2015-12-20 01:37:50 -05:00
parent ca69c2e310
commit 9d5df20efe
1 changed files with 6 additions and 3 deletions
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9
pkg/util/jsonpath/jsonpath.go
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@ -205,7 +205,7 @@ func (j *JSONPath) evalIdentifier(input []reflect.Value, node *IdentifierNode) (
return results, fmt.Errorf("not in range, nothing to end")
}
default:
return input, fmt.Errorf("unrecongnized identifier %v", node.Name)
return input, fmt.Errorf("unrecognized identifier %v", node.Name)
}
return results, nil
}
@ -216,7 +216,10 @@ func (j *JSONPath) evalArray(input []reflect.Value, node *ArrayNode) ([]reflect.
for _, value := range input {
value, isNil := template.Indirect(value)
if isNil || (value.Kind() != reflect.Array && value.Kind() != reflect.Slice) {
if isNil {
continue
}
if value.Kind() != reflect.Array && value.Kind() != reflect.Slice {
return input, fmt.Errorf("%v is not array or slice", value.Type())
}
params := node.Params
@ -404,7 +407,7 @@ func (j *JSONPath) evalFilter(input []reflect.Value, node *FilterNode) ([]reflec
value, _ = template.Indirect(value)
if value.Kind() != reflect.Array && value.Kind() != reflect.Slice {
return input, fmt.Errorf("%v is not array or slice", value)
return input, fmt.Errorf("%v is not array or slice and cannot be filtered", value)
}
for i := 0; i < value.Len(); i++ {
temp := []reflect.Value{value.Index(i)}