C# CompletionDataWrapper.AddType方法代码示例

		IEnumerable<ICompletionData> CreateTypeAndNamespaceCompletionData(TextLocation location, ResolveResult resolveResult, AstNode resolvedNode, CSharpResolver state)
		{
			if (resolveResult == null || resolveResult.IsError) {
				return null;
			}
			var exprParent = resolvedNode.GetParent<Expression>();
			var unit = exprParent != null ? exprParent.GetParent<SyntaxTree>() : null;

			var astResolver = unit != null ? CompletionContextProvider.GetResolver(state, unit) : null;
			IType hintType = exprParent != null && astResolver != null ? 
			                 TypeGuessing.GetValidTypes(astResolver, exprParent).FirstOrDefault() :
			                 null;
			var result = new CompletionDataWrapper(this);
			var lookup = new MemberLookup(
				ctx.CurrentTypeDefinition,
				Compilation.MainAssembly
			);
			if (resolveResult is NamespaceResolveResult) {
				var nr = (NamespaceResolveResult)resolveResult;
				if (!(resolvedNode.Parent is UsingDeclaration || resolvedNode.Parent != null && resolvedNode.Parent.Parent is UsingDeclaration)) {
					foreach (var cl in nr.Namespace.Types) {
						if (hintType != null && hintType.Kind != TypeKind.Array && cl.Kind == TypeKind.Interface) {
							continue;
						}
						if (!lookup.IsAccessible(cl, false))
							continue;
						result.AddType(cl, false, IsAttributeContext(resolvedNode));
					}
				}
				foreach (var ns in nr.Namespace.ChildNamespaces) {
					result.AddNamespace(lookup, ns);
				}
			} else if (resolveResult is TypeResolveResult) {
				var type = resolveResult.Type;
				foreach (var nested in type.GetNestedTypes ()) {
					if (hintType != null && hintType.Kind != TypeKind.Array && nested.Kind == TypeKind.Interface) {
						continue;
					}
					var def = nested.GetDefinition();
					if (def != null && !lookup.IsAccessible(def, false))
						continue;
					result.AddType(nested, false);
				}
			}
			return result.Result;
		}

		IEnumerable<ICompletionData> CreateCompletionData(TextLocation location, ResolveResult resolveResult, AstNode resolvedNode, CSharpResolver state, Func<IType, IType> typePred = null)
		{
			if (resolveResult == null /*			|| resolveResult.IsError*/) {
				return null;
			}

			var lookup = new MemberLookup(
				ctx.CurrentTypeDefinition,
				Compilation.MainAssembly
			);

			if (resolveResult is NamespaceResolveResult) {
				var nr = (NamespaceResolveResult)resolveResult;
				var namespaceContents = new CompletionDataWrapper(this);

				foreach (var cl in nr.Namespace.Types) {
					if (!lookup.IsAccessible(cl, false))
						continue;
					IType addType = typePred != null ? typePred(cl) : cl;
					if (addType != null)
						namespaceContents.AddType(addType, false);
				}

				foreach (var ns in nr.Namespace.ChildNamespaces) {
					namespaceContents.AddNamespace(lookup, ns);
				}
				return namespaceContents.Result;
			}
			IType type = resolveResult.Type;

			if (type.Namespace == "System" && type.Name == "Void")
				return null;

			if (resolvedNode.Parent is PointerReferenceExpression && (type is PointerType)) {
				resolveResult = new OperatorResolveResult(((PointerType)type).ElementType, System.Linq.Expressions.ExpressionType.Extension, resolveResult);
			}

			//var typeDef = resolveResult.Type.GetDefinition();
			var result = new CompletionDataWrapper(this);
			bool includeStaticMembers = false;

			if (resolveResult is LocalResolveResult) {
				if (resolvedNode is IdentifierExpression) {
					var mrr = (LocalResolveResult)resolveResult;
					includeStaticMembers = mrr.Variable.Name == mrr.Type.Name;
				}
			}
			if (resolveResult is TypeResolveResult && type.Kind == TypeKind.Enum) {
				foreach (var field in type.GetFields ()) {
					if (!lookup.IsAccessible(field, false))
						continue;
					result.AddMember(field);
				}
				return result.Result;
			}

			bool isProtectedAllowed = resolveResult is ThisResolveResult ? true : lookup.IsProtectedAccessAllowed(type);
			bool skipNonStaticMembers = (resolveResult is TypeResolveResult);

			if (resolveResult is MemberResolveResult && resolvedNode is IdentifierExpression) {
				var mrr = (MemberResolveResult)resolveResult;
				includeStaticMembers = mrr.Member.Name == mrr.Type.Name;

				TypeResolveResult trr;
				if (state.IsVariableReferenceWithSameType(
					resolveResult,
					((IdentifierExpression)resolvedNode).Identifier,
					out trr
				)) {
					if (currentMember != null && mrr.Member.IsStatic ^ currentMember.IsStatic) {
						skipNonStaticMembers = true;

						if (trr.Type.Kind == TypeKind.Enum) {
							foreach (var field in trr.Type.GetFields ()) {
								if (lookup.IsAccessible(field, false))
									result.AddMember(field);
							}
							return result.Result;
						}
					}
				}
				// ADD Aliases
				var scope = ctx.CurrentUsingScope;

				for (var n = scope; n != null; n = n.Parent) {
					foreach (var pair in n.UsingAliases) {
						if (pair.Key == mrr.Member.Name) {
							foreach (var r in CreateCompletionData (location, pair.Value, resolvedNode, state)) {
								if (r is IEntityCompletionData && ((IEntityCompletionData)r).Entity is IMember) {
									result.AddMember((IMember)((IEntityCompletionData)r).Entity);
								} else {
									result.Add(r);
								}
							}
						}
					}
				}				


			}
//.........这里部分代码省略.........

		void AddTypesAndNamespaces(CompletionDataWrapper wrapper, CSharpResolver state, AstNode node, Func<IType, IType> typePred = null, Predicate<IMember> memberPred = null, Action<ICompletionData, IType> callback = null, bool onlyAddConstructors = false)
		{
			var lookup = new MemberLookup(ctx.CurrentTypeDefinition, Compilation.MainAssembly);

			if (currentType != null) {
				for (var ct = ctx.CurrentTypeDefinition; ct != null; ct = ct.DeclaringTypeDefinition) {
					foreach (var nestedType in ct.GetNestedTypes ()) {
						if (!lookup.IsAccessible(nestedType.GetDefinition(), true))
							continue;
						if (onlyAddConstructors) {
							if (!nestedType.GetConstructors().Any(c => lookup.IsAccessible(c, true)))
								continue;
						}

						if (typePred == null) {
							if (onlyAddConstructors)
								wrapper.AddConstructors(nestedType, false, IsAttributeContext(node));
							else
								wrapper.AddType(nestedType, false, IsAttributeContext(node));
							continue;
						}

						var type = typePred(nestedType);
						if (type != null) {
							var a2 = onlyAddConstructors ? wrapper.AddConstructors(type, false, IsAttributeContext(node)) : wrapper.AddType(type, false, IsAttributeContext(node));
							if (a2 != null && callback != null) {
								callback(a2, type);
							}
						}
						continue;
					}
				}

				if (this.currentMember != null && !(node is AstType)) {
					var def = ctx.CurrentTypeDefinition;
					if (def == null && currentType != null)
						def = Compilation.MainAssembly.GetTypeDefinition(currentType.FullTypeName);
					if (def != null) {
						bool isProtectedAllowed = true;

						foreach (var member in def.GetMembers (m => currentMember.IsStatic ? m.IsStatic : true)) {
							if (member is IMethod && ((IMethod)member).FullName == "System.Object.Finalize") {
								continue;
							}
							if (member.SymbolKind == SymbolKind.Operator) {
								continue;
							}
							if (member.IsExplicitInterfaceImplementation) {
								continue;
							}
							if (!lookup.IsAccessible(member, isProtectedAllowed)) {
								continue;
							}
							if (memberPred == null || memberPred(member)) {
								wrapper.AddMember(member);
							}
						}
						var declaring = def.DeclaringTypeDefinition;
						while (declaring != null) {
							foreach (var member in declaring.GetMembers (m => m.IsStatic)) {
								if (memberPred == null || memberPred(member)) {
									wrapper.AddMember(member);
								}
							}
							declaring = declaring.DeclaringTypeDefinition;
						}
					}
				}
				if (ctx.CurrentTypeDefinition != null) {
					foreach (var p in ctx.CurrentTypeDefinition.TypeParameters) {
						wrapper.AddTypeParameter(p);
					}
				}
			}
			var scope = ctx.CurrentUsingScope;

			for (var n = scope; n != null; n = n.Parent) {
				foreach (var pair in n.UsingAliases) {
					wrapper.AddAlias(pair.Key);
				}
				foreach (var alias in n.ExternAliases) {
					wrapper.AddAlias(alias);
				}
				foreach (var u in n.Usings) {
					foreach (var type in u.Types) {
						if (!lookup.IsAccessible(type, false))
							continue;

						IType addType = typePred != null ? typePred(type) : type;

						if (onlyAddConstructors && addType != null) {
							if (!addType.GetConstructors().Any(c => lookup.IsAccessible(c, true)))
								continue;
						}

						if (addType != null) {
							var a = onlyAddConstructors ? wrapper.AddConstructors(addType, false, IsAttributeContext(node)) : wrapper.AddType(addType, false, IsAttributeContext(node));
							if (a != null && callback != null) {
								callback(a, type);
							}
//.........这里部分代码省略.........

		IEnumerable<ICompletionData> CreateConstructorCompletionData(IType hintType)
		{
			var wrapper = new CompletionDataWrapper(this);
			var state = GetState();
			Func<IType, IType> pred = null;
			Action<ICompletionData, IType> typeCallback = null;
			var inferredTypesCategory = new Category("Inferred Types", null);
			var derivedTypesCategory = new Category("Derived Types", null);
			if (hintType != null) {
				if (hintType.Kind != TypeKind.Unknown) {
					var lookup = new MemberLookup(
						ctx.CurrentTypeDefinition,
						Compilation.MainAssembly
					);
					typeCallback = (data, t) => {
						//check if type is in inheritance tree.
						if (hintType.GetDefinition() != null &&
							t.GetDefinition() != null &&
							t.GetDefinition().IsDerivedFrom(hintType.GetDefinition())) {
							data.CompletionCategory = derivedTypesCategory;
						}
					};
					pred = t => {
						if (t.Kind == TypeKind.Interface && hintType.Kind != TypeKind.Array) {
							return null;
						}
						// check for valid constructors
						if (t.GetConstructors().Count() > 0) {
							bool isProtectedAllowed = currentType != null ? 
							                          currentType.Resolve(ctx).GetDefinition().IsDerivedFrom(t.GetDefinition()) : false;
							if (!t.GetConstructors().Any(m => lookup.IsAccessible(m, isProtectedAllowed))) {
								return null;
							}
						}

						// check derived types
						var typeDef = t.GetDefinition();
						var hintDef = hintType.GetDefinition();
						if (typeDef != null && hintDef != null && typeDef.IsDerivedFrom(hintDef)) {
							var newType = wrapper.AddType(t, true);
							if (newType != null) {
								newType.CompletionCategory = inferredTypesCategory;
							}
						}

						// check type inference
						var typeInference = new TypeInference(Compilation);
						typeInference.Algorithm = TypeInferenceAlgorithm.ImprovedReturnAllResults;

						var inferedType = typeInference.FindTypeInBounds(new [] { t }, new [] { hintType });
						if (inferedType != SpecialType.UnknownType) {
							var newType = wrapper.AddType(inferedType, true);
							if (newType != null) {
								newType.CompletionCategory = inferredTypesCategory;
							}
							return null;
						}
						return t;
					};
					if (!(hintType.Kind == TypeKind.Interface && hintType.Kind != TypeKind.Array)) {
						var hint = wrapper.AddType(hintType, true);
						if (hint != null) {
							DefaultCompletionString = hint.DisplayText;
							hint.CompletionCategory = derivedTypesCategory;
						}
					}
					if (hintType is ParameterizedType && hintType.TypeParameterCount == 1 && hintType.FullName == "System.Collections.Generic.IEnumerable") {
						var arg = ((ParameterizedType)hintType).TypeArguments.FirstOrDefault();
						if (arg.Kind != TypeKind.TypeParameter) {
							var array = new ArrayType(ctx.Compilation, arg, 1);
							wrapper.AddType(array, true);
						}
					}
				} else {
					var hint = wrapper.AddType(hintType, true);
					if (hint != null) {
						DefaultCompletionString = hint.DisplayText;
						hint.CompletionCategory = derivedTypesCategory;
					}
				}
			} 
			AddTypesAndNamespaces(wrapper, state, null, pred, m => false, typeCallback, true);
			if (hintType == null || hintType == SpecialType.UnknownType) {
				AddKeywords(wrapper, primitiveTypesKeywords.Where(k => k != "void"));
			}

			CloseOnSquareBrackets = true;
			AutoCompleteEmptyMatch = true;
			AutoCompleteEmptyMatchOnCurlyBracket = false;
			return wrapper.Result;
		}

		IEnumerable<ICompletionData> CreateTypeAndNamespaceCompletionData(TextLocation location, ResolveResult resolveResult, AstNode resolvedNode, CSharpResolver state)
		{
			if (resolveResult == null || resolveResult.IsError) {
				return null;
			}
			var exprParent = resolvedNode.GetParent<Expression>();
			var unit = exprParent != null ? exprParent.GetParent<CompilationUnit>() : null;

			var astResolver = unit != null ? new CSharpAstResolver(
				state,
				unit,
				CSharpParsedFile
			) : null;
			IType hintType = exprParent != null && astResolver != null ? 
				CreateFieldAction.GetValidTypes(astResolver, exprParent) .FirstOrDefault() :
				null;
			var result = new CompletionDataWrapper(this);
			if (resolveResult is NamespaceResolveResult) {
				var nr = (NamespaceResolveResult)resolveResult;
				if (!(resolvedNode.Parent is UsingDeclaration || resolvedNode.Parent != null && resolvedNode.Parent.Parent is UsingDeclaration)) {
					foreach (var cl in nr.Namespace.Types) {
						string name = cl.Name;
						if (hintType != null && hintType.Kind != TypeKind.Array && cl.Kind == TypeKind.Interface) {
							continue;
						}
						if (IsAttributeContext(resolvedNode) && name.EndsWith("Attribute") && name.Length > "Attribute".Length) {
							name = name.Substring(0, name.Length - "Attribute".Length);
						}
						result.AddType(cl, name);
					}
				}
				foreach (var ns in nr.Namespace.ChildNamespaces) {
					result.AddNamespace(ns.Name);
				}
			} else if (resolveResult is TypeResolveResult) {
				var type = resolveResult.Type;
				foreach (var nested in type.GetNestedTypes ()) {
					if (hintType != null && hintType.Kind != TypeKind.Array && nested.Kind == TypeKind.Interface) {
						continue;
					}
					result.AddType(nested, nested.Name);
				}
			}
			return result.Result;
		}

		void AddEnumMembers(CompletionDataWrapper completionList, IType resolvedType, CSharpResolver state)
		{
			if (resolvedType.Kind != TypeKind.Enum) {
				return;
			}
			string typeString = GetShortType(resolvedType, state);
			if (typeString.Contains(".")) {
				completionList.AddType(resolvedType, typeString);
			}
			foreach (var field in resolvedType.GetFields ()) {
				if (field.IsConst || field.IsStatic) {
					completionList.Result.Add(factory.CreateEntityCompletionData(
						field,
						typeString + "." + field.Name
					)
					);
				}
			}
			DefaultCompletionString = typeString;
		}

        void AddTypesAndNamespaces(CompletionDataWrapper wrapper, CSharpResolver state, AstNode node, Func<IType, IType> typePred = null, Predicate<IMember> memberPred = null, Action<ICompletionData, IType> callback = null, bool onlyAddConstructors = false)
        {
            var lookup = new MemberLookup(ctx.CurrentTypeDefinition, Compilation.MainAssembly);

            if (currentType != null) {
                for (var ct = ctx.CurrentTypeDefinition; ct != null; ct = ct.DeclaringTypeDefinition) {
                    foreach (var nestedType in ct.GetNestedTypes ()) {
                        if (!lookup.IsAccessible (nestedType.GetDefinition (), true))
                            continue;
                        if (onlyAddConstructors) {
                            if (!nestedType.GetConstructors().Any(c => lookup.IsAccessible(c, true)))
                                continue;
                        }

                        if (typePred == null) {
                            if (onlyAddConstructors)
                                wrapper.AddConstructors (nestedType, false, IsAttributeContext(node));
                            else
                                wrapper.AddType(nestedType, false, IsAttributeContext(node));
                            continue;
                        }

                        var type = typePred(nestedType);
                        if (type != null) {
                            var a2 = onlyAddConstructors ? wrapper.AddConstructors(type, false, IsAttributeContext(node)) : wrapper.AddType(type, false, IsAttributeContext(node));
                            if (a2 != null && callback != null) {
                                callback(a2, type);
                            }
                        }
                        continue;
                    }
                }

                if (this.currentMember != null && !(node is AstType)) {
                    var def = ctx.CurrentTypeDefinition;
                    if (def == null && currentType != null)
                        def = Compilation.MainAssembly.GetTypeDefinition(currentType.FullTypeName);
                    if (def != null) {
                        bool isProtectedAllowed = true;

                        foreach (var member in def.GetMembers (m => currentMember.IsStatic ? m.IsStatic : true)) {
                            if (member is IMethod && ((IMethod)member).FullName == "System.Object.Finalize") {
                                continue;
                            }
                            if (member.SymbolKind == SymbolKind.Operator) {
                                continue;
                            }
                            if (member.IsExplicitInterfaceImplementation) {
                                continue;
                            }
                            if (!lookup.IsAccessible(member, isProtectedAllowed)) {
                                continue;
                            }
                            if (memberPred == null || memberPred(member)) {
                                wrapper.AddMember(member);
                            }
                        }
                        var declaring = def.DeclaringTypeDefinition;
                        while (declaring != null) {
                            foreach (var member in declaring.GetMembers (m => m.IsStatic)) {
                                if (memberPred == null || memberPred(member)) {
                                    wrapper.AddMember(member);
                                }
                            }
                            declaring = declaring.DeclaringTypeDefinition;
                        }
                    }
                }
                if (ctx.CurrentTypeDefinition != null) {
                    foreach (var p in ctx.CurrentTypeDefinition.TypeParameters) {
                        wrapper.AddTypeParameter(p);
                    }
                }
            }
            var scope = ctx.CurrentUsingScope;

            for (var n = scope; n != null; n = n.Parent) {
                foreach (var pair in n.UsingAliases) {
                    wrapper.AddAlias(pair.Key);
                }
                foreach (var alias in n.ExternAliases) {
                    wrapper.AddAlias(alias);
                }
                foreach (var u in n.Usings) {
                    foreach (var type in u.Types) {
                        if (!lookup.IsAccessible(type, false))
                            continue;

                        IType addType = typePred != null ? typePred(type) : type;

                        if (onlyAddConstructors && addType != null) {
                            if (!addType.GetConstructors().Any(c => lookup.IsAccessible(c, true)))
                                continue;
                        }

                        if (addType != null) {
                            var a = onlyAddConstructors ? wrapper.AddConstructors(addType, false, IsAttributeContext(node)) : wrapper.AddType(addType, false, IsAttributeContext(node));
                            if (a != null && callback != null) {
                                callback(a, type);
                            }
//.........这里部分代码省略.........

		void AddTypesAndNamespaces(CompletionDataWrapper wrapper, CSharpResolver state, AstNode node, Func<IType, IType> typePred = null, Predicate<IMember> memberPred = null, Action<ICompletionData, IType> callback = null)
		{
			var lookup = new MemberLookup(
				ctx.CurrentTypeDefinition,
				Compilation.MainAssembly
			);
			if (currentType != null) {
				for (var ct = currentType; ct != null; ct = ct.DeclaringTypeDefinition) {
					foreach (var nestedType in ct.NestedTypes) {
						string name = nestedType.Name;
						if (IsAttributeContext(node) && name.EndsWith("Attribute") && name.Length > "Attribute".Length) {
							name = name.Substring(0, name.Length - "Attribute".Length);
						}

						if (typePred == null) {
							wrapper.AddType(nestedType, name);
							continue;
						}

						var type = typePred(nestedType.Resolve(ctx));
						if (type != null) {
							var a2 = wrapper.AddType(type, name);
							if (a2 != null && callback != null) {
								callback(a2, type);
							}
						}
						continue;
					}
				}
				if (this.currentMember != null && !(node is AstType)) {
					var def = ctx.CurrentTypeDefinition ?? Compilation.MainAssembly.GetTypeDefinition(currentType);
					if (def != null) {
						bool isProtectedAllowed = true;
						foreach (var member in def.GetMembers ()) {
							if (member is IMethod && ((IMethod)member).FullName == "System.Object.Finalize") {
								continue;
							}
							if (member.EntityType == EntityType.Operator) {
								continue;
							}
							if (member.IsExplicitInterfaceImplementation) {
								continue;
							}
							if (!lookup.IsAccessible(member, isProtectedAllowed)) {
								continue;
							}

							if (memberPred == null || memberPred(member)) {
								wrapper.AddMember(member);
							}
						}
						var declaring = def.DeclaringTypeDefinition;
						while (declaring != null) {
							foreach (var member in declaring.GetMembers (m => m.IsStatic)) {
								if (memberPred == null || memberPred(member)) {
									wrapper.AddMember(member);
								}
							}
							declaring = declaring.DeclaringTypeDefinition;
						}
					}
				}
				foreach (var p in currentType.TypeParameters) {
					wrapper.AddTypeParameter(p);
				}
			}
			var scope = CSharpParsedFile.GetUsingScope(location).Resolve(Compilation);
			
			for (var n = scope; n != null; n = n.Parent) {
				foreach (var pair in n.UsingAliases) {
					wrapper.AddNamespace(pair.Key);
				}
				foreach (var u in n.Usings) {
					foreach (var type in u.Types) {
						if (!lookup.IsAccessible(type, false))
							continue;

						IType addType = typePred != null ? typePred(type) : type;
						if (addType != null) {
							string name = type.Name;
							if (IsAttributeContext(node) && name.EndsWith("Attribute") && name.Length > "Attribute".Length) {
								name = name.Substring(0, name.Length - "Attribute".Length);
							}
							var a = wrapper.AddType(addType, name);
							if (a != null && callback != null) {
								callback(a, type);
							}
						}
					}
				}
				
				foreach (var type in n.Namespace.Types) {
					if (!lookup.IsAccessible(type, false))
						continue;
					IType addType = typePred != null ? typePred(type) : type;
					if (addType != null) {
						var a2 = wrapper.AddType(addType, addType.Name);
						if (a2 != null && callback != null) {
							callback(a2, type);
						}
//.........这里部分代码省略.........

		IEnumerable<ICompletionData> CreateTypeAndNamespaceCompletionData(TextLocation location, ResolveResult resolveResult, AstNode resolvedNode, CSharpResolver state)
		{
			if (resolveResult == null || resolveResult.IsError) {
				return null;
			}

			var hintType = GuessHintType(resolvedNode);
			var result = new CompletionDataWrapper (this);
			if (resolveResult is NamespaceResolveResult) {
				var nr = (NamespaceResolveResult)resolveResult;
				if (!(resolvedNode.Parent is UsingDeclaration || resolvedNode.Parent != null && resolvedNode.Parent.Parent is UsingDeclaration)) {
					foreach (var cl in nr.Namespace.Types) {
						string name = cl.Name;
						if (hintType != null && hintType.Kind != TypeKind.Array && cl.Kind == TypeKind.Interface) {
							continue;
						}
						if (IsAttributeContext(resolvedNode) && name.EndsWith("Attribute") && name.Length > "Attribute".Length) {
							name = name.Substring(0, name.Length - "Attribute".Length);
						}
						result.AddType(cl, name);
					}
				}
				foreach (var ns in nr.Namespace.ChildNamespaces) {
					result.AddNamespace(ns.Name);
				}
			} else if (resolveResult is TypeResolveResult) {
				var type = resolveResult.Type;
				foreach (var nested in type.GetNestedTypes ()) {
					if (hintType != null && hintType.Kind != TypeKind.Array && nested.Kind == TypeKind.Interface) {
						continue;
					}
					result.AddType(nested, nested.Name);
				}
			}
			return result.Result;
		}

        void AddTypesAndNamespaces(CompletionDataWrapper wrapper, CSharpResolver state, AstNode node, Func<IType, IType> typePred = null, Predicate<IMember> memberPred = null, Action<ICompletionData, IType> callback = null)
        {
            var lookup = new MemberLookup(ctx.CurrentTypeDefinition, Compilation.MainAssembly);

            if (currentType != null) {
                for (var ct = ctx.CurrentTypeDefinition; ct != null; ct = ct.DeclaringTypeDefinition) {
                    foreach (var nestedType in ct.GetNestedTypes ()) {
                        if (!lookup.IsAccessible (nestedType.GetDefinition (), true))
                            continue;

                        if (typePred == null) {
                            wrapper.AddType(nestedType, false, IsAttributeContext(node));
                            continue;
                        }

                        var type = typePred(nestedType);
                        if (type != null) {
                            var a2 = wrapper.AddType(type, false, IsAttributeContext(node));
                            if (a2 != null && callback != null) {
                                callback(a2, type);
                            }
                        }
                        continue;
                    }
                }
                if (this.currentMember != null && !(node is AstType)) {
                    var def = ctx.CurrentTypeDefinition;
                    if (def == null && currentType != null)
                        def = Compilation.MainAssembly.GetTypeDefinition(currentType.FullTypeName);
                    if (def != null) {
                        bool isProtectedAllowed = true;

                        foreach (var member in def.GetMembers (m => currentMember.IsStatic ? m.IsStatic : true)) {
                            if (member is IMethod && ((IMethod)member).FullName == "System.Object.Finalize") {
                                continue;
                            }
                            if (member.EntityType == EntityType.Operator) {
                                continue;
                            }
                            if (member.IsExplicitInterfaceImplementation) {
                                continue;
                            }
                            if (!lookup.IsAccessible(member, isProtectedAllowed)) {
                                continue;
                            }
                            if (memberPred == null || memberPred(member)) {
                                wrapper.AddMember(member);
                            }
                        }
                        var declaring = def.DeclaringTypeDefinition;
                        while (declaring != null) {
                            foreach (var member in declaring.GetMembers (m => m.IsStatic)) {
                                if (memberPred == null || memberPred(member)) {
                                    wrapper.AddMember(member);
                                }
                            }
                            declaring = declaring.DeclaringTypeDefinition;
                        }
                    }
                }
                if (ctx.CurrentTypeDefinition != null) {
                    foreach (var p in ctx.CurrentTypeDefinition.TypeParameters) {
                        wrapper.AddTypeParameter(p);
                    }
                }
            }
            var scope = ctx.CurrentUsingScope;

            for (var n = scope; n != null; n = n.Parent) {
                foreach (var pair in n.UsingAliases) {
                    wrapper.AddAlias(pair.Key);
                }
                foreach (var alias in n.ExternAliases) {
                    wrapper.AddAlias(alias);
                }
                foreach (var u in n.Usings) {
                    foreach (var type in u.Types) {
                        if (!lookup.IsAccessible(type, false))
                            continue;

                        IType addType = typePred != null ? typePred(type) : type;
                        if (addType != null) {
                            var a = wrapper.AddType(addType, false, IsAttributeContext(node));
                            if (a != null && callback != null) {
                                callback(a, type);
                            }
                        }
                    }
                }

                foreach (var type in n.Namespace.Types) {
                    if (!lookup.IsAccessible(type, false))
                        continue;
                    IType addType = typePred != null ? typePred(type) : type;
                    if (addType != null) {
                        var a2 = wrapper.AddType(addType, false);
                        if (a2 != null && callback != null) {
                            callback(a2, type);
                        }
                    }
//.........这里部分代码省略.........

		IEnumerable<ICompletionData> CreateTypeCompletionData(IType hintType, AstType hintTypeAst)
		{
			var wrapper = new CompletionDataWrapper(this);
			var state = GetState();
			Func<IType, IType> pred = null;
			if (hintType != null) {
				
				if (hintType.Kind != TypeKind.Unknown) {
					var lookup = new MemberLookup(ctx.CurrentTypeDefinition, Compilation.MainAssembly);
					pred = t => {
						// check if type is in inheritance tree.
						if (hintType.GetDefinition() != null && !t.GetDefinition().IsDerivedFrom(hintType.GetDefinition())) {
							return null;
						}
						if (t.Kind == TypeKind.Interface && hintType.Kind != TypeKind.Array) {
							return null;
						}
						// check for valid constructors
						if (t.GetConstructors().Count() > 0) {
							bool isProtectedAllowed = currentType != null ? currentType.Resolve(ctx).GetDefinition().IsDerivedFrom(t.GetDefinition()) : false;
							if (!t.GetConstructors().Any(m => lookup.IsAccessible(m, isProtectedAllowed)))
								return null;
						}

						var typeInference = new TypeInference(Compilation);
						typeInference.Algorithm = TypeInferenceAlgorithm.ImprovedReturnAllResults;
						var inferedType = typeInference.FindTypeInBounds(new [] { t }, new [] { hintType });
						wrapper.AddType(inferedType, amb.ConvertType(inferedType));
						return null;
					};
					if (!(hintType.Kind == TypeKind.Interface && hintType.Kind != TypeKind.Array)) {
						DefaultCompletionString = GetShortType(hintType, GetState());
						wrapper.AddType(hintType, DefaultCompletionString);
					}
					if (hintType is ParameterizedType && hintType.TypeParameterCount == 1 && hintType.FullName == "System.Collections.Generic.IEnumerable") {
						var arg = ((ParameterizedType)hintType).TypeArguments.FirstOrDefault();
						var array = new ArrayTypeReference(arg.ToTypeReference(), 1).Resolve(ctx);
						wrapper.AddType(array, amb.ConvertType(array));
					}
				} else {
					DefaultCompletionString = hintTypeAst.ToString();
					wrapper.AddType(hintType, DefaultCompletionString);
				}
			} 
			AddTypesAndNamespaces(wrapper, state, null, pred, m => false);
			if (hintType == null || hintType == SpecialType.UnknownType)
				AddKeywords(wrapper, primitiveTypesKeywords.Where(k => k != "void"));
			CloseOnSquareBrackets = true;
			AutoCompleteEmptyMatch = true;
			return wrapper.Result;
		}