Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

external/linker/cecil/Mono.Cecil/ParameterDefinition.cs

@@ -0,0 +1,146 @@
+//
+// Author:
+//   Jb Evain (jbevain@gmail.com)
+//
+// Copyright (c) 2008 - 2015 Jb Evain
+// Copyright (c) 2008 - 2011 Novell, Inc.
+//
+// Licensed under the MIT/X11 license.
+//
+
+using Mono.Collections.Generic;
+
+namespace Mono.Cecil {
+
+	public sealed class ParameterDefinition : ParameterReference, ICustomAttributeProvider, IConstantProvider, IMarshalInfoProvider {
+
+		ushort attributes;
+
+		internal IMethodSignature method;
+
+		object constant = Mixin.NotResolved;
+		Collection<CustomAttribute> custom_attributes;
+		MarshalInfo marshal_info;
+
+		public ParameterAttributes Attributes {
+			get { return (ParameterAttributes) attributes; }
+			set { attributes = (ushort) value; }
+		}
+
+		public IMethodSignature Method {
+			get { return method; }
+		}
+
+		public int Sequence {
+			get {
+				if (method == null)
+					return -1;
+
+				return method.HasImplicitThis () ? index + 1 : index;
+			}
+		}
+
+		public bool HasConstant {
+			get {
+				this.ResolveConstant (ref constant, parameter_type.Module);
+
+				return constant != Mixin.NoValue;
+			}
+			set { if (!value) constant = Mixin.NoValue; }
+		}
+
+		public object Constant {
+			get { return HasConstant ? constant : null;	}
+			set { constant = value; }
+		}
+
+		public bool HasCustomAttributes {
+			get {
+				if (custom_attributes != null)
+					return custom_attributes.Count > 0;
+
+				return this.GetHasCustomAttributes (parameter_type.Module);
+			}
+		}
+
+		public Collection<CustomAttribute> CustomAttributes {
+			get { return custom_attributes ?? (this.GetCustomAttributes (ref custom_attributes, parameter_type.Module)); }
+		}
+
+		public bool HasMarshalInfo {
+			get {
+				if (marshal_info != null)
+					return true;
+
+				return this.GetHasMarshalInfo (parameter_type.Module);
+			}
+		}
+
+		public MarshalInfo MarshalInfo {
+			get { return marshal_info ?? (this.GetMarshalInfo (ref marshal_info, parameter_type.Module)); }
+			set { marshal_info = value; }
+		}
+
+		#region ParameterAttributes
+
+		public bool IsIn {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.In); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.In, value); }
+		}
+
+		public bool IsOut {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.Out); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Out, value); }
+		}
+
+		public bool IsLcid {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.Lcid); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Lcid, value); }
+		}
+
+		public bool IsReturnValue {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.Retval); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Retval, value); }
+		}
+
+		public bool IsOptional {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.Optional); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.Optional, value); }
+		}
+
+		public bool HasDefault {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.HasDefault); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.HasDefault, value); }
+		}
+
+		public bool HasFieldMarshal {
+			get { return attributes.GetAttributes ((ushort) ParameterAttributes.HasFieldMarshal); }
+			set { attributes = attributes.SetAttributes ((ushort) ParameterAttributes.HasFieldMarshal, value); }
+		}
+
+		#endregion
+
+		internal ParameterDefinition (TypeReference parameterType, IMethodSignature method)
+			: this (string.Empty, ParameterAttributes.None, parameterType)
+		{
+			this.method = method;
+		}
+
+		public ParameterDefinition (TypeReference parameterType)
+			: this (string.Empty, ParameterAttributes.None, parameterType)
+		{
+		}
+
+		public ParameterDefinition (string name, ParameterAttributes attributes, TypeReference parameterType)
+			: base (name, parameterType)
+		{
+			this.attributes = (ushort) attributes;
+			this.token = new MetadataToken (TokenType.Param);
+		}
+
+		public override ParameterDefinition Resolve ()
+		{
+			return this;
+		}
+	}
+}