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Viewing changes to contrib/Mono.Cecil/Mono.Cecil/Mono.Cecil/MethodReference.cs

  • Committer: Bazaar Package Importer
  • Author(s): Jo Shields
  • Date: 2011-06-27 17:03:13 UTC
  • mto: (1.8.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 54.
  • Revision ID: james.westby@ubuntu.com-20110627170313-6cvz3s19x6e9hqe9
Import upstream version 2.5.92+dfsg

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contrib/Mono.Cecil/Mono.Cecil/Mono.Cecil/MethodReference.cs
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// Author:
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//   Jb Evain (jbevain@gmail.com)
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//
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// (C) 2005 - 2007 Jb Evain
 
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// Copyright (c) 2008 - 2010 Jb Evain
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
 
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using System.Text;
 
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using Mono.Collections.Generic;
 
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namespace Mono.Cecil {
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        using System.Text;
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        public class MethodReference : MemberReference, IMethodSignature, IGenericParameterProvider {
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                ParameterDefinitionCollection m_parameters;
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                MethodReturnType m_returnType;
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                bool m_hasThis;
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                bool m_explicitThis;
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                MethodCallingConvention m_callConv;
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                GenericParameterCollection m_genparams;
 
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        public class MethodReference : MemberReference, IMethodSignature, IGenericParameterProvider, IGenericContext {
 
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                internal ParameterDefinitionCollection parameters;
 
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                MethodReturnType return_type;
 
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                bool has_this;
 
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                bool explicit_this;
 
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                MethodCallingConvention calling_convention;
 
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                internal Collection<GenericParameter> generic_parameters;
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                public virtual bool HasThis {
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                        get { return m_hasThis; }
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                        set { m_hasThis = value; }
 
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                        get { return has_this; }
 
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                        set { has_this = value; }
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                }
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                public virtual bool ExplicitThis {
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                        get { return m_explicitThis; }
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                        set { m_explicitThis = value; }
 
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                        get { return explicit_this; }
 
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                        set { explicit_this = value; }
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                }
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                public virtual MethodCallingConvention CallingConvention {
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                        get { return m_callConv; }
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                        set { m_callConv = value; }
 
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                        get { return calling_convention; }
 
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                        set { calling_convention = value; }
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                }
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                public virtual bool HasParameters {
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                        get { return (m_parameters == null) ? false : (m_parameters.Count > 0); }
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                }
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                public virtual ParameterDefinitionCollection Parameters {
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                        get {
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                                if (m_parameters == null)
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                                        m_parameters = new ParameterDefinitionCollection (this);
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                                return m_parameters;
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                        }
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                }
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                public bool HasGenericParameters {
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                        get { return (m_genparams == null) ? false : (m_genparams.Count > 0); }
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                }
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74
 
                public GenericParameterCollection GenericParameters {
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                        get {
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                                if (m_genparams == null)
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                                        m_genparams = new GenericParameterCollection (this);
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                                return m_genparams;
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                        }
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                }
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82
 
                public virtual MethodReturnType ReturnType {
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                        get { return m_returnType;}
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                        set { m_returnType = value; }
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                }
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87
 
                internal MethodReference (string name, bool hasThis,
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                        bool explicitThis, MethodCallingConvention callConv) : this (name)
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                {
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                        m_parameters = new ParameterDefinitionCollection (this);
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                        m_hasThis = hasThis;
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                        m_explicitThis = explicitThis;
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                        m_callConv = callConv;
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                }
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96
 
                internal MethodReference (string name) : base (name)
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                {
98
 
                        m_returnType = new MethodReturnType (null);
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                }
100
 
 
101
 
                public MethodReference (string name,
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                        TypeReference declaringType, TypeReference returnType,
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                        bool hasThis, bool explicitThis, MethodCallingConvention callConv) :
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                        this (name, hasThis, explicitThis, callConv)
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                {
 
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                        get { return !parameters.IsNullOrEmpty (); }
 
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                }
 
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65
                public virtual Collection<ParameterDefinition> Parameters {
 
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                        get {
 
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                                if (parameters == null)
 
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                                        parameters = new ParameterDefinitionCollection (this);
 
69
 
 
70
                                return parameters;
 
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                        }
 
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                }
 
73
 
 
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                IGenericParameterProvider IGenericContext.Type {
 
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                        get {
 
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                                var declaring_type = this.DeclaringType;
 
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                                var instance = declaring_type as GenericInstanceType;
 
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                                if (instance != null)
 
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                                        return instance.ElementType;
 
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81
                                return declaring_type;
 
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                        }
 
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                }
 
84
 
 
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                IGenericParameterProvider IGenericContext.Method {
 
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                        get { return this; }
 
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                }
 
88
 
 
89
                GenericParameterType IGenericParameterProvider.GenericParameterType {
 
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                        get { return GenericParameterType.Method; }
 
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                }
 
92
 
 
93
                public virtual bool HasGenericParameters {
 
94
                        get { return !generic_parameters.IsNullOrEmpty (); }
 
95
                }
 
96
 
 
97
                public virtual Collection<GenericParameter> GenericParameters {
 
98
                        get {
 
99
                                if (generic_parameters != null)
 
100
                                        return generic_parameters;
 
101
 
 
102
                                return generic_parameters = new Collection<GenericParameter> ();
 
103
                        }
 
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                }
 
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106
                public TypeReference ReturnType {
 
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                        get {
 
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                                var return_type = MethodReturnType;
 
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                                return return_type != null ? return_type.ReturnType : null;
 
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                        }
 
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                        set {
 
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                                var return_type = MethodReturnType;
 
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                                if (return_type != null)
 
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                                        return_type.ReturnType = value;
 
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                        }
 
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                }
 
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                public virtual MethodReturnType MethodReturnType {
 
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                        get { return return_type; }
 
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                        set { return_type = value; }
 
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                }
 
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                public override string FullName {
 
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                        get {
 
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                                var builder = new StringBuilder ();
 
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                                builder.Append (ReturnType.FullName);
 
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                                builder.Append (" ");
 
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                                builder.Append (MemberFullName ());
 
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                                this.MethodSignatureFullName (builder);
 
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                                return builder.ToString ();
 
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                        }
 
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                }
 
133
 
 
134
                public virtual bool IsGenericInstance {
 
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                        get { return false; }
 
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                }
 
137
 
 
138
                internal override bool ContainsGenericParameter {
 
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                        get {
 
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                                if (this.ReturnType.ContainsGenericParameter || base.ContainsGenericParameter)
 
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                                        return true;
 
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                                var parameters = this.Parameters;
 
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                                for (int i = 0; i < parameters.Count; i++)
 
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                                        if (parameters [i].ParameterType.ContainsGenericParameter)
 
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                                                return true;
 
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149
                                return false;
 
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                        }
 
151
                }
 
152
 
 
153
                internal MethodReference ()
 
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                {
 
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                        this.return_type = new MethodReturnType (this);
 
156
                        this.token = new MetadataToken (TokenType.MemberRef);
 
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                }
 
158
 
 
159
                public MethodReference (string name, TypeReference returnType)
 
160
                        : base (name)
 
161
                {
 
162
                        if (returnType == null)
 
163
                                throw new ArgumentNullException ("returnType");
 
164
 
 
165
                        this.return_type = new MethodReturnType (this);
 
166
                        this.return_type.ReturnType = returnType;
 
167
                        this.token = new MetadataToken (TokenType.MemberRef);
 
168
                }
 
169
 
 
170
                public MethodReference (string name, TypeReference returnType, TypeReference declaringType)
 
171
                        : this (name, returnType)
 
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                {
 
173
                        if (declaringType == null)
 
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                                throw new ArgumentNullException ("declaringType");
 
175
 
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176
                        this.DeclaringType = declaringType;
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                        this.ReturnType.ReturnType = returnType;
 
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                }
 
178
 
 
179
                public virtual MethodReference GetElementMethod ()
 
180
                {
 
181
                        return this;
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                }
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                public virtual MethodDefinition Resolve ()
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                {
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                        TypeReference declaringType = DeclaringType;
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                        if (declaringType == null)
114
 
                                return null;
115
 
 
116
 
                        return declaringType.Module.Resolver.Resolve (this);
117
 
                }
118
 
 
119
 
                public virtual MethodReference GetOriginalMethod ()
120
 
                {
121
 
                        return this;
122
 
                }
123
 
 
124
 
                public int GetSentinel ()
125
 
                {
126
 
                        if (HasParameters) {
127
 
                                for (int i = 0; i < Parameters.Count; i++)
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                                        if (Parameters [i].ParameterType is SentinelType)
129
 
                                                return i;
130
 
                        }
 
186
                        var module = this.Module;
 
187
                        if (module == null)
 
188
                                throw new NotSupportedException ();
 
189
 
 
190
                        return module.Resolve (this);
 
191
                }
 
192
        }
 
193
 
 
194
        static partial class Mixin {
 
195
 
 
196
                public static bool IsVarArg (this IMethodSignature self)
 
197
                {
 
198
                        return (self.CallingConvention & MethodCallingConvention.VarArg) != 0;
 
199
                }
 
200
 
 
201
                public static int GetSentinelPosition (this IMethodSignature self)
 
202
                {
 
203
                        if (!self.HasParameters)
 
204
                                return -1;
 
205
 
 
206
                        var parameters = self.Parameters;
 
207
                        for (int i = 0; i < parameters.Count; i++)
 
208
                                if (parameters [i].ParameterType.IsSentinel)
 
209
                                        return i;
 
210
 
131
211
                        return -1;
132
212
                }
133
 
 
134
 
                public override string ToString ()
135
 
                {
136
 
                        int sentinel = GetSentinel ();
137
 
 
138
 
                        StringBuilder sb = new StringBuilder ();
139
 
                        sb.Append (m_returnType.ReturnType.FullName);
140
 
                        sb.Append (" ");
141
 
                        sb.Append (base.ToString ());
142
 
                        sb.Append ("(");
143
 
                        if (this.HasParameters) {
144
 
                                for (int i = 0; i < this.Parameters.Count; i++) {
145
 
                                        if (i > 0)
146
 
                                                sb.Append (",");
147
 
 
148
 
                                        if (i == sentinel)
149
 
                                                sb.Append ("...,");
150
 
 
151
 
                                        sb.Append (this.Parameters [i].ParameterType.FullName);
152
 
                                }
153
 
                        }
154
 
                        sb.Append (")");
155
 
                        return sb.ToString ();
156
 
                }
157
213
        }
158
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}