Imported Upstream version 4.2.0.179

Former-commit-id: 4610231f55806d2a05ed69e5ff3faa7336cc1479
2015-08-26 07:17:56 -04:00
parent aa7da660d6
commit c042cd0c52
7507 changed files with 90259 additions and 657307 deletions
--- a/mcs/class/corlib/ReferenceSources/DefaultBinder.cs
+++ b/mcs/class/corlib/ReferenceSources/DefaultBinder.cs
@@ -0,0 +1,149 @@
+//
+// DefaultBinder.cs
+//
+// Authors:
+//	Marek Safar  <marek.safar@gmail.com>
+//
+// Copyright (C) 2015 Xamarin Inc (http://www.xamarin.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+namespace System
+{
+	partial class DefaultBinder
+	{
+		static bool CanConvertPrimitive (RuntimeType source, RuntimeType target)
+		{
+			if (source.IsEnum)
+				return false;
+
+			var from = Type.GetTypeCode (source);
+			switch (Type.GetTypeCode (target)) {
+			case TypeCode.Char:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.UInt16:
+					return true;
+				}
+				return false;
+			case TypeCode.Int16:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.SByte:
+					return true;
+				}
+				return false;
+			case TypeCode.UInt16:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.Char:
+					return true;
+				}
+				return false;
+			case TypeCode.Int32:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.SByte:
+				case TypeCode.Char:
+				case TypeCode.Int16:
+				case TypeCode.UInt16:
+					return true;
+				}
+				return false;
+			case TypeCode.UInt32:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.Char:
+				case TypeCode.UInt16:
+					return true;
+				}
+				return false;
+			case TypeCode.Int64:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.SByte:
+				case TypeCode.Int16:
+				case TypeCode.Char:
+				case TypeCode.UInt16:
+				case TypeCode.Int32:
+				case TypeCode.UInt32:
+					return true;
+				}
+				return false;
+			case TypeCode.UInt64:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.Char:
+				case TypeCode.UInt16:
+				case TypeCode.UInt32:
+					return true;
+				}
+				return false;
+			case TypeCode.Single:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.SByte:
+				case TypeCode.Int16:
+				case TypeCode.Char:
+				case TypeCode.UInt16:
+				case TypeCode.Int32:
+				case TypeCode.UInt32:
+				case TypeCode.Int64:
+				case TypeCode.UInt64:
+					return true;
+				}
+				return false;
+			case TypeCode.Double:
+				switch (from) {
+				case TypeCode.Byte:
+				case TypeCode.SByte:
+				case TypeCode.Char:
+				case TypeCode.Int16:
+				case TypeCode.UInt16:
+				case TypeCode.Int32:
+				case TypeCode.UInt32:
+				case TypeCode.Int64:
+				case TypeCode.UInt64:
+				case TypeCode.Single:
+					return true;
+				}
+				return false;
+			}
+
+			if (target == typeof (IntPtr))
+				return source == target;
+
+			if (target == typeof (UIntPtr))
+				return source == target;
+
+			return false;
+		}
+
+		static bool CanConvertPrimitiveObjectToType (Object source, RuntimeType type)
+		{
+			if (source == null)
+				return true;
+
+			var st = source.GetType ();
+			return st == type || CanConvertPrimitive ((RuntimeType) st, type);
+		}
+	}
+}