Method newStructTypeDecoder

internal/apijson/decoder.go:313–511

(t reflect.Type)

}

func (d *decoderBuilder) newStructTypeDecoder(t reflect.Type) decoderFunc {
	// map of json field name to struct field decoders
	decoderFields := map[string]decoderField{}
	anonymousDecoders := []decoderField{}
	extraDecoder := (*decoderField)(nil)
	var inlineDecoders []decoderField

	validationEntries := validationRegistry[t]

	for i := 0; i < t.NumField(); i++ {
		idx := []int{i}
		field := t.FieldByIndex(idx)
		if !field.IsExported() {
			continue
		}

		var validator *validationEntry
		for _, entry := range validationEntries {
			if entry.field.Offset == field.Offset {
				validator = &entry
				break
			}
		}

		// If this is an embedded struct, traverse one level deeper to extract
		// the fields and get their encoders as well.
		if field.Anonymous {
			anonymousDecoders = append(anonymousDecoders, decoderField{
				fn:  d.typeDecoder(field.Type),
				idx: idx[:],
			})
			continue
		}
		// If json tag is not present, then we skip, which is intentionally
		// different behavior from the stdlib.
		ptag, ok := parseJSONStructTag(field)
		if !ok {
			continue
		}
		// We only want to support unexported fields if they're tagged with
		// `extras` because that field shouldn't be part of the public API.
		if ptag.extras {
			extraDecoder = &decoderField{ptag, d.typeDecoder(field.Type.Elem()), idx, field.Name}
			continue
		}
		if ptag.inline {
			df := decoderField{ptag, d.typeDecoder(field.Type), idx, field.Name}
			inlineDecoders = append(inlineDecoders, df)
			continue
		}
		if ptag.metadata {
			continue
		}

		oldFormat := d.dateFormat
		dateFormat, ok := parseFormatStructTag(field)
		if ok {
			switch dateFormat {