/NRefactory/ICSharpCode.NRefactory/TypeSystem/Implementation/SpecializedMember.cs
http://github.com/icsharpcode/ILSpy · C# · 410 lines · 311 code · 60 blank · 39 comment · 42 complexity · 57df86948b88cd82d6895078f3bd23db MD5 · raw file
- // Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
- //
- // 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.
- using System;
- using System.Collections.Generic;
- using System.Diagnostics;
- using System.Linq;
- using System.Text;
- using System.Threading;
- using ICSharpCode.NRefactory.Documentation;
- using ICSharpCode.NRefactory.Utils;
- namespace ICSharpCode.NRefactory.TypeSystem.Implementation
- {
- /// <summary>
- /// Represents a SpecializedMember (a member on which type substitution has been performed).
- /// </summary>
- public abstract class SpecializedMember : IMember
- {
- protected readonly IMember baseMember;
- TypeParameterSubstitution substitution;
-
- IType declaringType;
- IType returnType;
-
- protected SpecializedMember(IMember memberDefinition)
- {
- if (memberDefinition == null)
- throw new ArgumentNullException("memberDefinition");
- if (memberDefinition is SpecializedMember)
- throw new ArgumentException("Member definition cannot be specialized. Please use IMember.Specialize() instead of directly constructing SpecializedMember instances.");
-
- this.baseMember = memberDefinition;
- this.substitution = TypeParameterSubstitution.Identity;
- }
-
- /// <summary>
- /// Performs a substitution. This method may only be called by constructors in derived classes.
- /// </summary>
- protected void AddSubstitution(TypeParameterSubstitution newSubstitution)
- {
- Debug.Assert(declaringType == null);
- Debug.Assert(returnType == null);
- this.substitution = TypeParameterSubstitution.Compose(newSubstitution, this.substitution);
- }
-
- [Obsolete("Use IMember.Specialize() instead")]
- public static IMember Create(IMember memberDefinition, TypeParameterSubstitution substitution)
- {
- if (memberDefinition == null) {
- return null;
- } else {
- return memberDefinition.Specialize(substitution);
- }
- }
-
- public virtual IMemberReference ToMemberReference()
- {
- return ToReference();
- }
-
- public virtual IMemberReference ToReference()
- {
- return new SpecializingMemberReference(
- baseMember.ToReference(),
- ToTypeReference(substitution.ClassTypeArguments),
- null);
- }
-
- ISymbolReference ISymbol.ToReference()
- {
- return ToReference();
- }
-
- internal static IList<ITypeReference> ToTypeReference(IList<IType> typeArguments)
- {
- if (typeArguments == null)
- return null;
- else
- return typeArguments.Select(t => t.ToTypeReference()).ToArray();
- }
-
- internal IMethod WrapAccessor(ref IMethod cachingField, IMethod accessorDefinition)
- {
- if (accessorDefinition == null)
- return null;
- var result = LazyInit.VolatileRead(ref cachingField);
- if (result != null) {
- return result;
- } else {
- var sm = accessorDefinition.Specialize(substitution);
- //sm.AccessorOwner = this;
- return LazyInit.GetOrSet(ref cachingField, sm);
- }
- }
-
- /// <summary>
- /// Gets the substitution belonging to this specialized member.
- /// </summary>
- public TypeParameterSubstitution Substitution {
- get { return substitution; }
- }
-
- public IType DeclaringType {
- get {
- var result = LazyInit.VolatileRead(ref this.declaringType);
- if (result != null)
- return result;
- IType definitionDeclaringType = baseMember.DeclaringType;
- ITypeDefinition definitionDeclaringTypeDef = definitionDeclaringType as ITypeDefinition;
- if (definitionDeclaringTypeDef != null && definitionDeclaringType.TypeParameterCount > 0) {
- if (substitution.ClassTypeArguments != null && substitution.ClassTypeArguments.Count == definitionDeclaringType.TypeParameterCount) {
- result = new ParameterizedType(definitionDeclaringTypeDef, substitution.ClassTypeArguments);
- } else {
- result = new ParameterizedType(definitionDeclaringTypeDef, definitionDeclaringTypeDef.TypeParameters).AcceptVisitor(substitution);
- }
- } else {
- result = definitionDeclaringType.AcceptVisitor(substitution);
- }
- return LazyInit.GetOrSet(ref this.declaringType, result);
- }
- internal set {
- // This setter is used as an optimization when the code constructing
- // the SpecializedMember already knows the declaring type.
- Debug.Assert(this.declaringType == null);
- Debug.Assert(value != null);
- // As this setter is used only during construction before the member is published
- // to other threads, we don't need a volatile write.
- this.declaringType = value;
- }
- }
-
- public IMember MemberDefinition {
- get { return baseMember.MemberDefinition; }
- }
-
- public IUnresolvedMember UnresolvedMember {
- get { return baseMember.UnresolvedMember; }
- }
-
- public IType ReturnType {
- get {
- var result = LazyInit.VolatileRead(ref this.returnType);
- if (result != null)
- return result;
- else
- return LazyInit.GetOrSet(ref this.returnType, baseMember.ReturnType.AcceptVisitor(substitution));
- }
- protected set {
- // This setter is used for LiftedUserDefinedOperator, a special case of specialized member
- // (not a normal type parameter substitution).
-
- // As this setter is used only during construction before the member is published
- // to other threads, we don't need a volatile write.
- this.returnType = value;
- }
- }
-
- public bool IsVirtual {
- get { return baseMember.IsVirtual; }
- }
-
- public bool IsOverride {
- get { return baseMember.IsOverride; }
- }
-
- public bool IsOverridable {
- get { return baseMember.IsOverridable; }
- }
-
- public SymbolKind SymbolKind {
- get { return baseMember.SymbolKind; }
- }
-
- [Obsolete("Use the SymbolKind property instead.")]
- public EntityType EntityType {
- get { return baseMember.EntityType; }
- }
-
- public DomRegion Region {
- get { return baseMember.Region; }
- }
-
- public DomRegion BodyRegion {
- get { return baseMember.BodyRegion; }
- }
-
- public ITypeDefinition DeclaringTypeDefinition {
- get { return baseMember.DeclaringTypeDefinition; }
- }
-
- public IList<IAttribute> Attributes {
- get { return baseMember.Attributes; }
- }
-
- IList<IMember> implementedInterfaceMembers;
-
- public IList<IMember> ImplementedInterfaceMembers {
- get {
- return LazyInitializer.EnsureInitialized(ref implementedInterfaceMembers, FindImplementedInterfaceMembers);
- }
- }
-
- IList<IMember> FindImplementedInterfaceMembers()
- {
- var definitionImplementations = baseMember.ImplementedInterfaceMembers;
- IMember[] result = new IMember[definitionImplementations.Count];
- for (int i = 0; i < result.Length; i++) {
- result[i] = definitionImplementations[i].Specialize(substitution);
- }
- return result;
- }
-
- public bool IsExplicitInterfaceImplementation {
- get { return baseMember.IsExplicitInterfaceImplementation; }
- }
-
- public DocumentationComment Documentation {
- get { return baseMember.Documentation; }
- }
-
- public Accessibility Accessibility {
- get { return baseMember.Accessibility; }
- }
-
- public bool IsStatic {
- get { return baseMember.IsStatic; }
- }
-
- public bool IsAbstract {
- get { return baseMember.IsAbstract; }
- }
-
- public bool IsSealed {
- get { return baseMember.IsSealed; }
- }
-
- public bool IsShadowing {
- get { return baseMember.IsShadowing; }
- }
-
- public bool IsSynthetic {
- get { return baseMember.IsSynthetic; }
- }
-
- public bool IsPrivate {
- get { return baseMember.IsPrivate; }
- }
-
- public bool IsPublic {
- get { return baseMember.IsPublic; }
- }
-
- public bool IsProtected {
- get { return baseMember.IsProtected; }
- }
-
- public bool IsInternal {
- get { return baseMember.IsInternal; }
- }
-
- public bool IsProtectedOrInternal {
- get { return baseMember.IsProtectedOrInternal; }
- }
-
- public bool IsProtectedAndInternal {
- get { return baseMember.IsProtectedAndInternal; }
- }
-
- public string FullName {
- get { return baseMember.FullName; }
- }
-
- public string Name {
- get { return baseMember.Name; }
- }
-
- public string Namespace {
- get { return baseMember.Namespace; }
- }
-
- public string ReflectionName {
- get { return baseMember.ReflectionName; }
- }
-
- public ICompilation Compilation {
- get { return baseMember.Compilation; }
- }
-
- public IAssembly ParentAssembly {
- get { return baseMember.ParentAssembly; }
- }
- public virtual IMember Specialize(TypeParameterSubstitution newSubstitution)
- {
- return baseMember.Specialize(TypeParameterSubstitution.Compose(newSubstitution, this.substitution));
- }
- public override bool Equals(object obj)
- {
- SpecializedMember other = obj as SpecializedMember;
- if (other == null)
- return false;
- return this.baseMember.Equals(other.baseMember) && this.substitution.Equals(other.substitution);
- }
-
- public override int GetHashCode()
- {
- unchecked {
- return 1000000007 * baseMember.GetHashCode() + 1000000009 * substitution.GetHashCode();
- }
- }
-
- public override string ToString()
- {
- StringBuilder b = new StringBuilder("[");
- b.Append(GetType().Name);
- b.Append(' ');
- b.Append(this.DeclaringType.ToString());
- b.Append('.');
- b.Append(this.Name);
- b.Append(':');
- b.Append(this.ReturnType.ToString());
- b.Append(']');
- return b.ToString();
- }
- }
-
- public abstract class SpecializedParameterizedMember : SpecializedMember, IParameterizedMember
- {
- IList<IParameter> parameters;
-
- protected SpecializedParameterizedMember(IParameterizedMember memberDefinition)
- : base(memberDefinition)
- {
- }
-
- public IList<IParameter> Parameters {
- get {
- var result = LazyInit.VolatileRead(ref this.parameters);
- if (result != null)
- return result;
- else
- return LazyInit.GetOrSet(ref this.parameters, CreateParameters(this.Substitution));
- }
- protected set {
- // This setter is used for LiftedUserDefinedOperator, a special case of specialized member
- // (not a normal type parameter substitution).
-
- // As this setter is used only during construction before the member is published
- // to other threads, we don't need a volatile write.
- this.parameters = value;
- }
- }
-
- protected IList<IParameter> CreateParameters(TypeVisitor substitution)
- {
- var paramDefs = ((IParameterizedMember)this.baseMember).Parameters;
- if (paramDefs.Count == 0) {
- return EmptyList<IParameter>.Instance;
- } else {
- var parameters = new IParameter[paramDefs.Count];
- for (int i = 0; i < parameters.Length; i++) {
- var p = paramDefs[i];
- IType newType = p.Type.AcceptVisitor(substitution);
- parameters[i] = new DefaultParameter(
- newType, p.Name, this,
- p.Region, p.Attributes, p.IsRef, p.IsOut,
- p.IsParams, p.IsOptional, p.ConstantValue
- );
- }
- return Array.AsReadOnly(parameters);
- }
- }
-
- public override string ToString()
- {
- StringBuilder b = new StringBuilder("[");
- b.Append(GetType().Name);
- b.Append(' ');
- b.Append(this.DeclaringType.ReflectionName);
- b.Append('.');
- b.Append(this.Name);
- b.Append('(');
- for (int i = 0; i < this.Parameters.Count; i++) {
- if (i > 0) b.Append(", ");
- b.Append(this.Parameters[i].ToString());
- }
- b.Append("):");
- b.Append(this.ReturnType.ReflectionName);
- b.Append(']');
- return b.ToString();
- }
- }
- }