public override DynamicMetaObject BindInvokeMember(InvokeMemberBinder binder, DynamicMetaObject[] args)
{
var wrapper = this.Value as ExpressionContainer;
var valueExpr = wrapper.Expression;
var typeArgs = MockingUtil.TryGetTypeArgumentsFromBinder(binder);
var candidateMethods = valueExpr.Type.GetAllMethods()
.Where(m => MockingUtil.StringEqual(m.Name, binder.Name, binder.IgnoreCase) && m.IsStatic == wrapper.IsStatic)
.Where(m => m.GetParameters().Length >= args.Length)
.Select(m =>
{
if (typeArgs == null)
{
return(MockingUtil.TrySpecializeGenericMethod(m, args.Select(a => a.RuntimeType).ToArray()) ?? m);
}
else
{
return(MockingUtil.TryApplyTypeArguments(m, typeArgs));
}
})
.Where(m => m != null)
.Where(m =>
{
var methodParams = m.GetParameters();
for (int i = 0; i < args.Length; ++i)
{
var matcher = UnwrapMatcher(args[i]);
if (matcher != null)
{
var argType = matcher.ReturnType;
if (!methodParams[i].ParameterType.IsAssignableFrom(argType))
{
return(false);
}
}
}
return(true);
})
.ToArray();
if (candidateMethods.Length == 0 && args.Length == 0)
{
return(DoBindGetMember(binder.ReturnType, binder.Name, binder.IgnoreCase));
}
var methodArgs = args.Select(a =>
{
var matcher = UnwrapMatcher(a);
return(matcher != null ? matcher.ReturnType.GetDefaultValue() : a.Value);
}).ToArray();
object state;
var method = (MethodInfo)MockingUtil.BindToMethod(MockingUtil.Default, candidateMethods, ref methodArgs, null, null, null, out state);
var memberExpr = Expression.Call(!wrapper.IsStatic ? valueExpr : null, method, args.Select(FromArg).ToArray());
return(CreateRecorder(memberExpr, binder.ReturnType, BindingRestrictions.GetInstanceRestriction(this.Expression, this.Value)));
}
/// <summary>
/// Calls the specified method by name.
/// </summary>
/// <param name="name">The name of the method to call.</param>
/// <param name="args">Arguments to pass to the method.</param>
/// <returns>The value returned by the specified method.</returns>
public object CallMethod(string name, params object[] args)
{
return(ProfilerInterceptor.GuardInternal(() =>
{
args = args ?? MockingUtil.NoObjects;
var candidates = type.GetAllMethods()
.Where(m => m.Name == name && CanCall(m, this.instance != null))
.Select(m => MockingUtil.TrySpecializeGenericMethod(m, args.Select(a => a != null ? a.GetType() : null).ToArray()) ?? m)
.ToArray();
object state;
var method = MockingUtil.BindToMethod(MockingUtil.AllMembers,
candidates, ref args, null, null, null, out state);
return CallInvoke(method, args);
}));
}
private object CallMethodInternal(string name, ICollection <Type> argTypes, ParameterModifier[] argModifiers, object[] argValues)
{
if (argTypes == null)
{
throw new ArgumentNullException("argTypes");
}
if (argValues == null || argValues.Length == 0)
{
argValues = argTypes.Select(t => MockingUtil.GetDefaultValue(t)).ToArray();
}
if (argTypes.Count != argValues.Length)
{
throw new ArgumentException("The number of argument types does not match the number of argument values");
}
var argValueIndex = 0;
foreach (var argType in argTypes)
{
if (argValues[argValueIndex] != null && argType != argValues[argValueIndex].GetType() ||
argValues[argValueIndex] == null && argValues[argValueIndex] != MockingUtil.GetDefaultValue(argType))
{
throw new ArgumentException("One or more arguments types does not match the argument values");
}
argValueIndex++;
}
var candidates = type.GetAllMethods()
.Where(m => m.Name == name && MockingUtil.CanCall(m, this.instance != null))
.Select(m => MockingUtil.TrySpecializeGenericMethod(m, argTypes.ToArray()) ?? m)
.ToArray();
var method = MockingUtil.SelectMethod(MockingUtil.AllMembers, candidates, argTypes.ToArray(), argModifiers);
return(CallInvoke(method, argValues));
}