Function newTypeEncoder

internal/encoding/json/encode.go:416–469

newTypeEncoder constructs an encoderFunc for a type. The returned encoder only checks CanAddr when allowAddr is true.

(t reflect.Type, allowAddr bool)

// newTypeEncoder constructs an encoderFunc for a type.
// The returned encoder only checks CanAddr when allowAddr is true.
func newTypeEncoder(t reflect.Type, allowAddr bool) encoderFunc {
	// EDIT(begin): add custom time encoder
	if t == timeType {
		return newTimeEncoder()
	}
	// EDIT(end)

	// If we have a non-pointer value whose type implements
	// Marshaler with a value receiver, then we're better off taking
	// the address of the value - otherwise we end up with an
	// allocation as we cast the value to an interface.
	if t.Kind() != reflect.Pointer && allowAddr && reflect.PointerTo(t).Implements(marshalerType) {
		return newCondAddrEncoder(addrMarshalerEncoder, newTypeEncoder(t, false))
	}

	if t.Implements(marshalerType) {
		return marshalerEncoder
	}
	if t.Kind() != reflect.Pointer && allowAddr && reflect.PointerTo(t).Implements(textMarshalerType) {
		return newCondAddrEncoder(addrTextMarshalerEncoder, newTypeEncoder(t, false))
	}
	if t.Implements(textMarshalerType) {
		return textMarshalerEncoder
	}

	switch t.Kind() {
	case reflect.Bool:
		return boolEncoder
	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
		return intEncoder
	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
		return uintEncoder
	case reflect.Float32:
		return float32Encoder
	case reflect.Float64:
		return float64Encoder
	case reflect.String:
		return stringEncoder
	case reflect.Interface:
		return interfaceEncoder
	case reflect.Struct:
		return newStructEncoder(t)
	case reflect.Map:
		return newMapEncoder(t)
	case reflect.Slice:
		return newSliceEncoder(t)
	case reflect.Array:
		return newArrayEncoder(t)
	case reflect.Pointer:
		return newPtrEncoder(t)
	default:
		return unsupportedTypeEncoder
	}
}

func invalidValueEncoder(e *encodeState, v reflect.Value, _ encOpts) {
	e.WriteString("null")