private GallioFunc <object[], TOutput> TryGetMemberAsField(FixtureMemberInvokerTargets targets, ITypeInfo ownerInfo)
{
if ((targets & FixtureMemberInvokerTargets.Field) != 0)
{
IFieldInfo info = ownerInfo.GetField(memberName, bindingFlags);
if (info != null)
{
return(args =>
{
object fixtureInstance = GetFixtureInstance(info.IsStatic);
FieldInfo field = (type == null) ? GetMemberInfo <FieldInfo>(t => t.GetField(memberName, bindingFlags)) : info.Resolve(true);
if (field == null)
{
throw new TestFailedException(String.Format("Could not find field '{0}''.", memberName));
}
return (TOutput)field.GetValue(fixtureInstance);
});
}
}
return(null);
}
private GallioFunc <object[], TOutput> TryGetMemberAsProperty(FixtureMemberInvokerTargets targets, ITypeInfo ownerInfo)
{
if ((targets & FixtureMemberInvokerTargets.Property) != 0)
{
IPropertyInfo info = ownerInfo.GetProperty(memberName, bindingFlags);
if (info != null && info.GetMethod != null)
{
return(args =>
{
object fixtureInstance = GetFixtureInstance(info.GetMethod.IsStatic);
PropertyInfo property = (type == null) ? GetMemberInfo <PropertyInfo>(t => t.GetProperty(memberName, bindingFlags)) : info.Resolve(true);
if (property == null)
{
throw new TestFailedException(String.Format("Could not find property '{0}'.", memberName));
}
return (TOutput)property.GetValue(fixtureInstance, null);
});
}
}
return(null);
}
private GallioFunc <object[], TOutput> TryGetMemberAsMethod(FixtureMemberInvokerTargets targets, ITypeInfo ownerInfo)
{
if ((targets & FixtureMemberInvokerTargets.Method) != 0)
{
IMethodInfo info = ownerInfo.GetMethod(memberName, bindingFlags);
if (info != null)
{
return(args =>
{
object fixtureInstance = GetFixtureInstance(info.IsStatic);
MethodInfo method = (type == null) ? GetMemberInfo <MethodInfo>(t => t.GetMethod(memberName, bindingFlags)) : info.Resolve(true);
if (method == null)
{
throw new TestFailedException(String.Format("Could not find method '{0}'.", memberName));
}
object[] convertedArgs = ConvertArguments(method.GetParameters(), args);
return (TOutput)method.Invoke(fixtureInstance, convertedArgs);
});
}
}
return(null);
}
private TOutput InvokeImpl(FixtureMemberInvokerTargets targets, object[] args)
{
var ownerInfo = GetOwnerInfo();
var function = TryGetMemberAsMethod(targets, ownerInfo)
?? TryGetMemberAsProperty(targets, ownerInfo)
?? TryGetMemberAsField(targets, ownerInfo);
if (function == null)
{
throw new PatternUsageErrorException(String.Format("Could not find a method, property or field named '{0}'.", memberName));
}
return(function(args));
}
/// <summary>
/// Invokes the member with the specified arguments and returns the resulting value.
/// </summary>
/// <param name="targets">The arguments to pass to the member.</param>
/// <param name="args">The arguments to pass to the member.</param>
/// <returns>The resulting value.</returns>
public TOutput Invoke(FixtureMemberInvokerTargets targets, params object[] args)
{
return(InvokeImpl(targets, args));
}
