func reflectValue()

in collector/logs/transforms/parser/keyvalue.go [107:165]

• 47 lines of code
• 21 McCabe index (conditional complexity)

func reflectValue(value string) interface{} {
	if len(value) == 0 {
		return ""
	}

	// Fast path for boolean detection based on first character and length
	first := value[0]
	if (first == 't' || first == 'T') && len(value) == 4 {
		if strings.EqualFold(value, "true") {
			return true
		}
	} else if (first == 'f' || first == 'F') && len(value) == 5 {
		if strings.EqualFold(value, "false") {
			return false
		}
	}

	// Quickly determine if the string represents a numeric value
	isNumber := true
	isFloat := false

	for i := 0; i < len(value); i++ {
		c := value[i]
		// Allow leading sign characters
		if i == 0 && (c == '+' || c == '-') {
			continue
		}
		// Check for decimal point to identify floats
		if c == '.' {
			if isFloat { // Multiple decimal points invalidate number
				isNumber = false
				break
			}
			isFloat = true
			continue
		}
		// Non-digit character invalidates number
		if c < '0' || c > '9' {
			isNumber = false
			break
		}
	}

	// Attempt numeric conversion if valid number detected
	if isNumber {
		if isFloat {
			if floatVal, err := strconv.ParseFloat(value, 64); err == nil {
				return floatVal
			}
		} else {
			if intVal, err := strconv.Atoi(value); err == nil {
				return intVal
			}
		}
	}

	// Default to returning the original string if no conversion succeeded
	return value
}