private ConditionType?GetAssertionConditionAnnotationConditionType(IParameter parameter)
{
var assertionConditionType = _assertionConditionAnnotationProvider.GetInfo(parameter);
switch (assertionConditionType)
{
case AssertionConditionType.IS_TRUE:
case AssertionConditionType.IS_FALSE: return(ConditionType.TrueOrFalseCheck);
case AssertionConditionType.IS_NULL:
case AssertionConditionType.IS_NOT_NULL: return(ConditionType.NullEqualityCheck);
}
return(null);
}
public static AssertionStatement TryFromInvocationExpression(
[NotNull] IInvocationExpression invocationExpression,
[NotNull] AssertionMethodAnnotationProvider assertionMethodAnnotationProvider,
[NotNull] AssertionConditionAnnotationProvider assertionConditionAnnotationProvider)
{
if (invocationExpression.Reference.Resolve().DeclaredElement is IMethod method && assertionMethodAnnotationProvider.GetInfo(method))
{
foreach (var parameter in method.Parameters)
{
Debug.Assert(parameter != null);
var parameterAssertionCondition = assertionConditionAnnotationProvider.GetInfo(parameter);
if (parameterAssertionCondition == null && parameter.Type.IsBool())
{
parameterAssertionCondition = AssertionConditionType.IS_TRUE;
}
if (parameterAssertionCondition != null)
{
var argument = invocationExpression.ArgumentList?.Arguments.FirstOrDefault(
a =>
{
Debug.Assert(a != null);
return(a.MatchingParameter != null && a.MatchingParameter.Element.ShortName == parameter.ShortName);
});
if (argument?.Value != null)
{
return(new AssertionStatement(invocationExpression, (AssertionConditionType)parameterAssertionCondition, argument.Value));
}
}
}
}
return(null);
}