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Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/struct.go | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/struct.go b/dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/struct.go new file mode 100644 index 0000000..ac78f31 --- /dev/null +++ b/dependencies/pkg/mod/github.com/goccy/go-yaml@v1.9.6/struct.go @@ -0,0 +1,130 @@ +package yaml + +import ( + "reflect" + "strings" + + "golang.org/x/xerrors" +) + +const ( + // StructTagName tag keyword for Marshal/Unmarshal + StructTagName = "yaml" +) + +// StructField information for each the field in structure +type StructField struct { + FieldName string + RenderName string + AnchorName string + AliasName string + IsAutoAnchor bool + IsAutoAlias bool + IsOmitEmpty bool + IsFlow bool + IsInline bool +} + +func getTag(field reflect.StructField) string { + // If struct tag `yaml` exist, use that. If no `yaml` + // exists, but `json` does, use that and try the best to + // adhere to its rules + tag := field.Tag.Get(StructTagName) + if tag == "" { + tag = field.Tag.Get(`json`) + } + return tag +} + +func structField(field reflect.StructField) *StructField { + tag := getTag(field) + fieldName := strings.ToLower(field.Name) + options := strings.Split(tag, ",") + if len(options) > 0 { + if options[0] != "" { + fieldName = options[0] + } + } + structField := &StructField{ + FieldName: field.Name, + RenderName: fieldName, + } + if len(options) > 1 { + for _, opt := range options[1:] { + switch { + case opt == "omitempty": + structField.IsOmitEmpty = true + case opt == "flow": + structField.IsFlow = true + case opt == "inline": + structField.IsInline = true + case strings.HasPrefix(opt, "anchor"): + anchor := strings.Split(opt, "=") + if len(anchor) > 1 { + structField.AnchorName = anchor[1] + } else { + structField.IsAutoAnchor = true + } + case strings.HasPrefix(opt, "alias"): + alias := strings.Split(opt, "=") + if len(alias) > 1 { + structField.AliasName = alias[1] + } else { + structField.IsAutoAlias = true + } + default: + } + } + } + return structField +} + +func isIgnoredStructField(field reflect.StructField) bool { + if field.PkgPath != "" && !field.Anonymous { + // private field + return true + } + tag := getTag(field) + if tag == "-" { + return true + } + return false +} + +type StructFieldMap map[string]*StructField + +func (m StructFieldMap) isIncludedRenderName(name string) bool { + for _, v := range m { + if v.RenderName == name { + return true + } + } + return false +} + +func (m StructFieldMap) hasMergeProperty() bool { + for _, v := range m { + if v.IsOmitEmpty && v.IsInline && v.IsAutoAlias { + return true + } + } + return false +} + +func structFieldMap(structType reflect.Type) (StructFieldMap, error) { + structFieldMap := StructFieldMap{} + renderNameMap := map[string]struct{}{} + for i := 0; i < structType.NumField(); i++ { + field := structType.Field(i) + if isIgnoredStructField(field) { + continue + } + structField := structField(field) + if _, exists := renderNameMap[structField.RenderName]; exists { + return nil, xerrors.Errorf("duplicated struct field name %s", structField.RenderName) + } + structFieldMap[structField.FieldName] = structField + renderNameMap[structField.RenderName] = struct{}{} + } + return structFieldMap, nil +} |