Argument.Check 4.0.1

Argument.Check

Argument.Check is a very simple library which makes it very easy to check your arguments or variables for different conditions like 'Null'. It is super fast it is using the new [CallerMemberNameAttribute]

Getting started

Prerequisites

• .Net 7

Install the package

dotnet add package Argument.Check

Samples

Each Throw helper could also be used like a "Throw Expression".

Null check

public MyClass(object arg)
{
    Throw.IfNull(arg);
}

Null check, like 'Throw Expressions'

public MyClass(IService service)
{
    _service = Throw.IfNull(service);
}

Null check on a stack variable

public MyClass(IService service)
{
    Throw.IfNull(service);

    var result = service.GetSomething();
    Throw.IfNull(result);
}

File exists

public MyClass(FileInfo fileInfo)
{
    Throw.IfExists(fileInfo);
}

Directory exists

public MyClass(DirectoryInfo directoryInfo)
{
    Throw.IfExists(directoryInfo);
}

Value is greater than

public MyClass(int value)
{
    Throw.IfGreaterThan(value, 10);
}

Value is less than

public MyClass(int value)
{
    Throw.IfLessThan(value, 10);
}

Value is out of range

public MyClass(int value)
{
    Throw.IfOutOfRange(value, 10, 100);
}

Custom expression

public MyClass(string value)
{
    Throw.If(value, v => v.Length > 10 && v.Contains("abc"), "The given string length must not be longer than 10, and must not contain 'abc'");
}

Argument must be an interface

public MyClass(object value)
{
    Throw.IfNotInterface(value); 
}

Argument must be equal to any expectation

public MyClass(object value)
{
    Throw.IfNotEqualsTo(value, new object()); 
}

And many more.

public MyClass(object value)
{    
    Throw.If(...)
    Throw.IfNot(...)

    Throw.IfNull(...)

    Throw.IfEmpty(...)
    Throw.IfNotEmpty(...)

    Throw.IfTypeIs(...)
    Throw.IfTypeIsNot(...)

    Throw.IfEqualsTo(...)
    Throw.IfNotEqualsTo(...)

    Throw.IfExists(...)
    Throw.IfNotExists(...)

    Throw.IfGreaterOrEqual(...)
    Throw.IfGreaterThan(...)

    Throw.IfLessOrEqual(...)
    Throw.IfLessThan(...)

    Throw.IfInterface(...)
    Throw.IfNotInterface(...)
    
    Throw.IfLengthIs(...)
    Throw.IfLengthIsNot(...)
    
    Throw.IfContains(...)
    Throw.IfNotContains(...)
            
    Throw.IfNullOrAny(...)
    Throw.IfNullOrAnyItemIsNull(...)    
    Throw.IfNullOrEmpty(...)
    Throw.IfNullOrWhiteSpace(...)

    Throw.IfOutOfRange(...)
    Throw.IfWhitespace(...)   
    Throw.IfAnyItemIsNullOrWhitespace(...)
}