Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

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

@@ -0,0 +1,201 @@
+//
+// 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 System;
+using System.Text;
+
+using Mono.Collections.Generic;
+
+namespace Mono.Cecil {
+
+	public class MethodReference : MemberReference, IMethodSignature, IGenericParameterProvider, IGenericContext {
+
+		internal ParameterDefinitionCollection parameters;
+		MethodReturnType return_type;
+
+		bool has_this;
+		bool explicit_this;
+		MethodCallingConvention calling_convention;
+		internal Collection<GenericParameter> generic_parameters;
+
+		public virtual bool HasThis {
+			get { return has_this; }
+			set { has_this = value; }
+		}
+
+		public virtual bool ExplicitThis {
+			get { return explicit_this; }
+			set { explicit_this = value; }
+		}
+
+		public virtual MethodCallingConvention CallingConvention {
+			get { return calling_convention; }
+			set { calling_convention = value; }
+		}
+
+		public virtual bool HasParameters {
+			get { return !parameters.IsNullOrEmpty (); }
+		}
+
+		public virtual Collection<ParameterDefinition> Parameters {
+			get {
+				if (parameters == null)
+					parameters = new ParameterDefinitionCollection (this);
+
+				return parameters;
+			}
+		}
+
+		IGenericParameterProvider IGenericContext.Type {
+			get {
+				var declaring_type = this.DeclaringType;
+				var instance = declaring_type as GenericInstanceType;
+				if (instance != null)
+					return instance.ElementType;
+
+				return declaring_type;
+			}
+		}
+
+		IGenericParameterProvider IGenericContext.Method {
+			get { return this; }
+		}
+
+		GenericParameterType IGenericParameterProvider.GenericParameterType {
+			get { return GenericParameterType.Method; }
+		}
+
+		public virtual bool HasGenericParameters {
+			get { return !generic_parameters.IsNullOrEmpty (); }
+		}
+
+		public virtual Collection<GenericParameter> GenericParameters {
+			get {
+				if (generic_parameters != null)
+					return generic_parameters;
+
+				return generic_parameters = new GenericParameterCollection (this);
+			}
+		}
+
+		public TypeReference ReturnType {
+			get {
+				var return_type = MethodReturnType;
+				return return_type != null ? return_type.ReturnType : null;
+			}
+			set {
+				var return_type = MethodReturnType;
+				if (return_type != null)
+					return_type.ReturnType = value;
+			}
+		}
+
+		public virtual MethodReturnType MethodReturnType {
+			get { return return_type; }
+			set { return_type = value; }
+		}
+
+		public override string FullName {
+			get {
+				var builder = new StringBuilder ();
+				builder.Append (ReturnType.FullName)
+					.Append (" ")
+					.Append (MemberFullName ());
+				this.MethodSignatureFullName (builder);
+				return builder.ToString ();
+			}
+		}
+
+		public virtual bool IsGenericInstance {
+			get { return false; }
+		}
+
+		public override bool ContainsGenericParameter {
+			get {
+				if (this.ReturnType.ContainsGenericParameter || base.ContainsGenericParameter)
+					return true;
+
+				var parameters = this.Parameters;
+
+				for (int i = 0; i < parameters.Count; i++)
+					if (parameters [i].ParameterType.ContainsGenericParameter)
+						return true;
+
+				return false;
+			}
+		}
+
+		internal MethodReference ()
+		{
+			this.return_type = new MethodReturnType (this);
+			this.token = new MetadataToken (TokenType.MemberRef);
+		}
+
+		public MethodReference (string name, TypeReference returnType)
+			: base (name)
+		{
+			if (returnType == null)
+				throw new ArgumentNullException ("returnType");
+
+			this.return_type = new MethodReturnType (this);
+			this.return_type.ReturnType = returnType;
+			this.token = new MetadataToken (TokenType.MemberRef);
+		}
+
+		public MethodReference (string name, TypeReference returnType, TypeReference declaringType)
+			: this (name, returnType)
+		{
+			if (declaringType == null)
+				throw new ArgumentNullException ("declaringType");
+
+			this.DeclaringType = declaringType;
+		}
+
+		public virtual MethodReference GetElementMethod ()
+		{
+			return this;
+		}
+
+		protected override IMemberDefinition ResolveDefinition ()
+		{
+			return this.Resolve ();
+		}
+
+		public new virtual MethodDefinition Resolve ()
+		{
+			var module = this.Module;
+			if (module == null)
+				throw new NotSupportedException ();
+
+			return module.Resolve (this);
+		}
+	}
+
+	static partial class Mixin {
+
+		public static bool IsVarArg (this IMethodSignature self)
+		{
+			return (self.CallingConvention & MethodCallingConvention.VarArg) != 0;
+		}
+
+		public static int GetSentinelPosition (this IMethodSignature self)
+		{
+			if (!self.HasParameters)
+				return -1;
+
+			var parameters = self.Parameters;
+			for (int i = 0; i < parameters.Count; i++)
+				if (parameters [i].ParameterType.IsSentinel)
+					return i;
+
+			return -1;
+		}
+	}
+}