public static MatcherInfo FromMatcherAndParamInfo(object matcherObject, ParameterInfo paramInfo, out MatcherInfo[] paramsMatchers)
{
var kind = MatcherKind.Unknown;
var argType = typeof(void);
var expressionString = "n/a";
paramsMatchers = null;
ITypedMatcher typedMatcher;
if (MockingUtil.TryGetAs(matcherObject, out typedMatcher))
{
if (matcherObject.GetType() == typeof(ValueMatcher))
{
kind = MatcherKind.Value;
}
else if (matcherObject.GetType() == typeof(TypeMatcher))
{
kind = MatcherKind.Type;
}
else if (matcherObject.GetType() == typeof(StringNullOrEmptyMatcher))
{
kind = MatcherKind.NullOrEmpty;
}
else if (matcherObject.GetType() == typeof(RangeMatcher <>).MakeGenericType(typedMatcher.Type))
{
kind = MatcherKind.Range;
}
else if (matcherObject.GetType() == typeof(PredicateMatcher <>).MakeGenericType(typedMatcher.Type))
{
kind = MatcherKind.Predicate;
}
if (kind != MatcherKind.Unknown)
{
IMatcher matcher;
if (MockingUtil.TryGetAs(matcherObject, out matcher))
{
argType =
typedMatcher.Type != null
?
typedMatcher.Type
:
paramInfo.ParameterType.IsArray
?
paramInfo.ParameterType.GetElementType()
:
paramInfo.ParameterType;
expressionString = matcher.DebugView;
}
}
}
else if (matcherObject.GetType() == typeof(ParamsMatcher))
{
IContainerMatcher containerMatcher;
if (MockingUtil.TryGetAs <IContainerMatcher>(matcherObject, out containerMatcher))
{
kind = MatcherKind.Params;
paramsMatchers = containerMatcher.Matchers.Select(
contained =>
{
MatcherInfo[] dummy;
var result = FromMatcherAndParamInfo(contained, paramInfo, out dummy);
result.IsParamsArg = true;
return(result);
})
.ToArray();
}
}
else if (matcherObject.GetType() == typeof(AnyMatcher))
{
kind = MatcherKind.Any;
}
return(new MatcherInfo(kind, argType, paramInfo.Position, paramInfo.Name, expressionString));
}
