Method DisplayString

ast/ast.go:652–728

DisplayString returns a string representation of the constant without escaping Unicode characters. Note: If the string contains quote characters ("), the display string won't look like a source string anymore.

()

// DisplayString returns a string representation of the constant without escaping Unicode characters.
// Note: If the string contains quote characters ("), the display string won't look like a source string anymore.
func (c Constant) DisplayString() string {
	switch c.Type {
	case NameType:
		return string(c.Symbol)
	case StringType:
		return fmt.Sprintf("\"%s\"", c.Symbol)
	case BytesType:
		return fmt.Sprintf("b\"%s\"", c.Symbol)
	case NumberType:
		return FormatNumber(c.NumValue)
	case Float64Type:
		return FormatFloat64(math.Float64frombits(uint64(c.NumValue)))
	case TimeType:
		return FormatTime(c.NumValue)
	case DurationType:
		return FormatDuration(c.NumValue)
	case PairShape:
		fst := *c.fst
		snd := *c.snd
		return fmt.Sprintf("fn:pair(%s, %s)", fst.DisplayString(), snd.DisplayString())
	case ListShape:
		if c.IsListNil() {
			return "[]"
		}
		var s strings.Builder
		s.WriteRune('[')
		s.WriteString((*c.fst).DisplayString())
		c2 := *c.snd
		for !c2.IsListNil() {
			s.WriteString(", ")
			s.WriteString((*c2.fst).DisplayString())
			c2 = *c2.snd
		}
		s.WriteRune(']')
		return s.String()
	case MapShape:
		if c.IsMapNil() {
			return "fn:map()"
		}
		var s strings.Builder
		s.WriteRune('[')
		s.WriteString((*c.fst.fst).DisplayString())
		s.WriteString(" : ")
		s.WriteString((*c.fst.snd).DisplayString())
		c2 := *c.snd
		for !c2.IsMapNil() {
			s.WriteString(", ")
			s.WriteString((*c2.fst.fst).DisplayString())
			s.WriteString(" : ")
			s.WriteString((*c2.fst.snd).DisplayString())
			c2 = *c2.snd
		}
		s.WriteRune(']')
		return s.String()
	case StructShape:
		if c.IsStructNil() {
			return "{}"
		}