Mono.CSharp.Parameter.Resolve C# (CSharp) Method

		public virtual TypeSpec Resolve (IMemberContext rc, int index)
		{
			if (parameter_type != null)
				return parameter_type;

			if (attributes != null)
				attributes.AttachTo (this, rc);

			var expr = texpr.ResolveAsTypeTerminal (rc, false);
			if (expr == null)
				return null;

			this.idx = index;
			texpr = expr;
			parameter_type = texpr.Type;
	
			if ((modFlags & Parameter.Modifier.ISBYREF) != 0 &&
				TypeManager.IsSpecialType (parameter_type)) {
				rc.Compiler.Report.Error (1601, Location, "Method or delegate parameter cannot be of type `{0}'",
					GetSignatureForError ());
				return null;
			}

			TypeManager.CheckTypeVariance (parameter_type,
				(modFlags & Parameter.Modifier.ISBYREF) != 0 ? Variance.None : Variance.Contravariant,
				rc);

			if (parameter_type.IsStatic) {
				rc.Compiler.Report.Error (721, Location, "`{0}': static types cannot be used as parameters",
					texpr.GetSignatureForError ());
				return parameter_type;
			}

			if ((modFlags & Modifier.This) != 0 && (parameter_type.IsPointer || parameter_type == InternalType.Dynamic)) {
				rc.Compiler.Report.Error (1103, Location, "The extension method cannot be of type `{0}'",
					TypeManager.CSharpName (parameter_type));
			}

			return parameter_type;
		}