diff options
Diffstat (limited to 'vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go')
| -rw-r--r-- | vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go b/vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go deleted file mode 100644 index 11c52c3..0000000 --- a/vendor/github.com/aws/aws-sdk-go/aws/awsutil/path_value.go +++ /dev/null @@ -1,222 +0,0 @@ -package awsutil - -import ( - "reflect" - "regexp" - "strconv" - "strings" - - "github.com/jmespath/go-jmespath" -) - -var indexRe = regexp.MustCompile(`(.+)\[(-?\d+)?\]$`) - -// rValuesAtPath returns a slice of values found in value v. The values -// in v are explored recursively so all nested values are collected. -func rValuesAtPath(v interface{}, path string, createPath, caseSensitive, nilTerm bool) []reflect.Value { - pathparts := strings.Split(path, "||") - if len(pathparts) > 1 { - for _, pathpart := range pathparts { - vals := rValuesAtPath(v, pathpart, createPath, caseSensitive, nilTerm) - if len(vals) > 0 { - return vals - } - } - return nil - } - - values := []reflect.Value{reflect.Indirect(reflect.ValueOf(v))} - components := strings.Split(path, ".") - for len(values) > 0 && len(components) > 0 { - var index *int64 - var indexStar bool - c := strings.TrimSpace(components[0]) - if c == "" { // no actual component, illegal syntax - return nil - } else if caseSensitive && c != "*" && strings.ToLower(c[0:1]) == c[0:1] { - // TODO normalize case for user - return nil // don't support unexported fields - } - - // parse this component - if m := indexRe.FindStringSubmatch(c); m != nil { - c = m[1] - if m[2] == "" { - index = nil - indexStar = true - } else { - i, _ := strconv.ParseInt(m[2], 10, 32) - index = &i - indexStar = false - } - } - - nextvals := []reflect.Value{} - for _, value := range values { - // pull component name out of struct member - if value.Kind() != reflect.Struct { - continue - } - - if c == "*" { // pull all members - for i := 0; i < value.NumField(); i++ { - if f := reflect.Indirect(value.Field(i)); f.IsValid() { - nextvals = append(nextvals, f) - } - } - continue - } - - value = value.FieldByNameFunc(func(name string) bool { - if c == name { - return true - } else if !caseSensitive && strings.ToLower(name) == strings.ToLower(c) { - return true - } - return false - }) - - if nilTerm && value.Kind() == reflect.Ptr && len(components[1:]) == 0 { - if !value.IsNil() { - value.Set(reflect.Zero(value.Type())) - } - return []reflect.Value{value} - } - - if createPath && value.Kind() == reflect.Ptr && value.IsNil() { - // TODO if the value is the terminus it should not be created - // if the value to be set to its position is nil. - value.Set(reflect.New(value.Type().Elem())) - value = value.Elem() - } else { - value = reflect.Indirect(value) - } - - if value.Kind() == reflect.Slice || value.Kind() == reflect.Map { - if !createPath && value.IsNil() { - value = reflect.ValueOf(nil) - } - } - - if value.IsValid() { - nextvals = append(nextvals, value) - } - } - values = nextvals - - if indexStar || index != nil { - nextvals = []reflect.Value{} - for _, valItem := range values { - value := reflect.Indirect(valItem) - if value.Kind() != reflect.Slice { - continue - } - - if indexStar { // grab all indices - for i := 0; i < value.Len(); i++ { - idx := reflect.Indirect(value.Index(i)) - if idx.IsValid() { - nextvals = append(nextvals, idx) - } - } - continue - } - - // pull out index - i := int(*index) - if i >= value.Len() { // check out of bounds - if createPath { - // TODO resize slice - } else { - continue - } - } else if i < 0 { // support negative indexing - i = value.Len() + i - } - value = reflect.Indirect(value.Index(i)) - - if value.Kind() == reflect.Slice || value.Kind() == reflect.Map { - if !createPath && value.IsNil() { - value = reflect.ValueOf(nil) - } - } - - if value.IsValid() { - nextvals = append(nextvals, value) - } - } - values = nextvals - } - - components = components[1:] - } - return values -} - -// ValuesAtPath returns a list of values at the case insensitive lexical -// path inside of a structure. -func ValuesAtPath(i interface{}, path string) ([]interface{}, error) { - result, err := jmespath.Search(path, i) - if err != nil { - return nil, err - } - - v := reflect.ValueOf(result) - if !v.IsValid() || (v.Kind() == reflect.Ptr && v.IsNil()) { - return nil, nil - } - if s, ok := result.([]interface{}); ok { - return s, err - } - if v.Kind() == reflect.Map && v.Len() == 0 { - return nil, nil - } - if v.Kind() == reflect.Slice { - out := make([]interface{}, v.Len()) - for i := 0; i < v.Len(); i++ { - out[i] = v.Index(i).Interface() - } - return out, nil - } - - return []interface{}{result}, nil -} - -// SetValueAtPath sets a value at the case insensitive lexical path inside -// of a structure. -func SetValueAtPath(i interface{}, path string, v interface{}) { - if rvals := rValuesAtPath(i, path, true, false, v == nil); rvals != nil { - for _, rval := range rvals { - if rval.Kind() == reflect.Ptr && rval.IsNil() { - continue - } - setValue(rval, v) - } - } -} - -func setValue(dstVal reflect.Value, src interface{}) { - if dstVal.Kind() == reflect.Ptr { - dstVal = reflect.Indirect(dstVal) - } - srcVal := reflect.ValueOf(src) - - if !srcVal.IsValid() { // src is literal nil - if dstVal.CanAddr() { - // Convert to pointer so that pointer's value can be nil'ed - // dstVal = dstVal.Addr() - } - dstVal.Set(reflect.Zero(dstVal.Type())) - - } else if srcVal.Kind() == reflect.Ptr { - if srcVal.IsNil() { - srcVal = reflect.Zero(dstVal.Type()) - } else { - srcVal = reflect.ValueOf(src).Elem() - } - dstVal.Set(srcVal) - } else { - dstVal.Set(srcVal) - } - -} |