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Code Analyzer based on Omnisharp
Why is this an issue?
Some constructors of the ArgumentException
, ArgumentNullException
, ArgumentOutOfRangeException
and
DuplicateWaitObjectException
classes must be fed with a valid parameter name. This rule raises an issue in two cases:
- When this parameter name doesn’t match any existing ones.
- When a call is made to the default (parameterless) constructor
Noncompliant code example
public void Foo(Bar a, int[] b)
{
throw new ArgumentException(); // Noncompliant
throw new ArgumentException("My error message", "c"); // Noncompliant
throw new ArgumentException("My error message", "c", innerException); // Noncompliant
throw new ArgumentNullException("c"); // Noncompliant
throw new ArgumentNullException(nameof(c)); // Noncompliant
throw new ArgumentNullException("My error message", "a"); // Noncompliant
throw new ArgumentOutOfRangeException("c"); // Noncompliant
throw new ArgumentOutOfRangeException("c", "My error message"); // Noncompliant
throw new ArgumentOutOfRangeException("c", b, "My error message"); // Noncompliant
throw new DuplicateWaitObjectException("c", "My error message"); // Noncompliant
}
Compliant solution
public void Foo(Bar a, int[] b)
{
throw new ArgumentException("My error message", "a");
throw new ArgumentException("My error message", "b", innerException);
throw new ArgumentNullException("a");
throw new ArgumentNullException(nameof(a));
throw new ArgumentNullException("a", "My error message");
throw new ArgumentOutOfRangeException("b");
throw new ArgumentOutOfRangeException("b", "My error message");
throw new ArgumentOutOfRangeException("b", b, "My error message");
throw new DuplicateWaitObjectException("b", "My error message");
}
Exceptions
The rule won’t raise an issue if the parameter name is not a constant value.
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