func unmarshalTerm()

in drivers/golang/age/builder.go [236:289]
52 lines of code
15 McCabe index (conditional complexity)

func unmarshalTerm(ctx *antlr.TerminalNodeImpl) (interface{}, error) {
	txt := ctx.GetText()
	switch ctx.GetSymbol().GetTokenType() {
	case parser.AgeLexerSTRING:
		return strings.Trim(txt, "\""), nil
	case parser.AgeLexerNUMERIC:
		numStr := txt[:len(txt)-9]
		// fmt.Println("txt   ", txt)
		// fmt.Println("numStr", numStr)
		if strings.Contains(numStr, ".") {
			bi := new(big.Float)
			bi, ok := bi.SetString(numStr)
			if !ok {
				return nil, &AgeParseError{msg: "Parse big float " + txt}
			}
			return bi, nil
		} else {
			bi := new(big.Int)
			bi, ok := bi.SetString(numStr, 10)
			if !ok {
				return nil, &AgeParseError{msg: "Parse big int " + txt}
			}
			return bi, nil
		}
	case parser.AgeLexerNUMBER:
		if strings.Contains(txt, ".") {
			return strconv.ParseFloat(txt, 64)
		} else {
			return strconv.ParseInt(txt, 10, 64)
		}
	case parser.AgeLexerFLOAT_EXPR:
		switch txt {
		case "NaN":
			return math.NaN(), nil
		case "-Infinity":
			return math.Inf(-1), nil
		case "Infinity":
			return math.Inf(1), nil
		default:
			return nil, &AgeParseError{msg: "Unknown float expression" + txt}
		}
	case parser.AgeLexerBOOL:
		s, err := strconv.ParseBool(txt)
		if err != nil {
			return nil, err
		} else {
			return s, nil
		}
	case parser.AgeLexerNULL:
		return nil, nil
	default:
		return nil, nil
	}
}