GuardExtensions extension

on

• Guard

Methods

indexOutOfRange(int input, Iterable values, {String? name}) → int

Throws a RangeError if input is not a valid enum index. Returns input otherwise.

invalidFormat(String input, String regexPattern, {String? name, String? message, bool caseSensitive = true, bool multiline = false}) → String

Throws an ArgumentError if input doesn't match the regexPattern. Returns input otherwise.

invalidInput<T>(T input, bool predicate(T), {String? name, String? message}) → T

Throws an ArgumentError if input doesn't satisfy the predicate function. Returns input otherwise.

negative<T extends num>(T input, {String? name, String? message}) → T

Throws an ArgumentError if input is negative. Returns input otherwise.

negativeOrZero<T extends num>(T input, {String? name, String? message}) → T

Throws an ArgumentError if input is negative or zero. Returns input otherwise.

nullOrEmpty(String? input, {String? name, String? message}) → String

Throws an ArgumentError if input is null or empty. Returns input otherwise.

nullOrEmptyCollection<T extends Iterable>(T? input, {String? name, String? message}) → T

Throws an ArgumentError if input is null or an empty collection. Returns input otherwise.

nullOrInvalidInput<T>(T? input, bool predicate(T?), {String? name, String? message}) → T

Throws an ArgumentError if input is null or doesn't satisfy the predicate function. Returns input otherwise.

nullOrWhitespace(String? input, {String? name, String? message}) → String

Throws an ArgumentError if input is null, empty, or white space. Returns input otherwise.

nullValue<T>(T input, {String? name}) → T

Throws an ArgumentError if input is null. Returns input otherwise.

outOfRange<T extends Comparable>(T input, T rangeFrom, T rangeTo, {String? name, String? message}) → T

Throws a RangeError if input is less than rangeFrom or greater than rangeTo. Returns input otherwise.

outOfRangeItems<T extends Iterable, U extends Comparable>(T input, U rangeFrom, U rangeTo, {String? name, String? message}) → T

Throws an ArgumentError if any input item is less than rangeFrom or greater than rangeTo. Returns input otherwise.

zero<T extends num>(T input, {String? name, String? message}) → T

Throws an ArgumentError if input is zero. Returns input otherwise.