C# ITypeResolveContext.Synchronize方法代码示例

		public static ResolveResult Resolve(ITypeResolveContext context, CSharpParsedFile parsedFile, CompilationUnit cu, TextLocation location,
		                                    CancellationToken cancellationToken = default(CancellationToken))
		{
			AstNode node = cu.GetNodeAt(location);
			if (node == null)
				return null;
			AstNode resolvableNode;
			if (node is AstType) {
				resolvableNode = node;
				if (resolvableNode.Parent is ComposedType) {
					while (resolvableNode.Parent is ComposedType) 
						resolvableNode = resolvableNode.Parent;
					//node is preffered over the resolvable node. Which shouldn't be done in the case of nullables, arrays etc.
					node = resolvableNode;
				}
			} else if (node is Identifier) {
				resolvableNode = node.Parent;
			} else if (node.NodeType == NodeType.Token) {
				if (node.Parent is ConstructorInitializer) {
					resolvableNode = node.Parent;
				} else {
					return null;
				}
			} else {
				// don't resolve arbitrary nodes - we don't want to show tooltips for everything
				return null;
			}
			
			InvocationExpression parentInvocation = null;
			if ((resolvableNode is IdentifierExpression || resolvableNode is MemberReferenceExpression || resolvableNode is PointerReferenceExpression)) {
				// we also need to resolve the invocation
				parentInvocation = resolvableNode.Parent as InvocationExpression;
			}
			
			IResolveVisitorNavigator navigator;
			if (parentInvocation != null)
				navigator = new NodeListResolveVisitorNavigator(new[] { resolvableNode, parentInvocation });
			else
				navigator = new NodeListResolveVisitorNavigator(new[] { resolvableNode });
			
			using (var ctx = context.Synchronize()) {
				CSharpResolver resolver = new CSharpResolver(ctx, cancellationToken);
				ResolveVisitor v = new ResolveVisitor(resolver, parsedFile, navigator);
				v.Scan(cu);
				
				// Prefer the RR from the token itself, if it was assigned a ResolveResult
				// (this can happen with the identifiers in various nodes such as catch clauses or foreach statements)
				ResolveResult rr = v.GetResolveResult(node) ?? v.GetResolveResult(resolvableNode);
				if (rr is MethodGroupResolveResult && parentInvocation != null)
					return v.GetResolveResult(parentInvocation);
				else
					return rr;
			}
		}

		/// <summary>
		/// Finds all references in the given file.
		/// </summary>
		/// <param name="searchScopes">The search scopes for which to look.</param>
		/// <param name="parsedFile">The type system representation of the file being searched.</param>
		/// <param name="compilationUnit">The compilation unit of the file being searched.</param>
		/// <param name="context">The type resolve context to use for resolving the file.</param>
		/// <param name="callback">Callback used to report the references that were found.</param>
		public void FindReferencesInFile(IList<IFindReferenceSearchScope> searchScopes, CSharpParsedFile parsedFile, CompilationUnit compilationUnit,
		                                 ITypeResolveContext context, FoundReferenceCallback callback)
		{
			if (searchScopes == null)
				throw new ArgumentNullException("searchScopes");
			if (parsedFile == null)
				throw new ArgumentNullException("parsedFile");
			if (compilationUnit == null)
				throw new ArgumentNullException("compilationUnit");
			if (context == null)
				throw new ArgumentNullException("context");
			this.CancellationToken.ThrowIfCancellationRequested();
			if (searchScopes.Count == 0)
				return;
			using (var ctx = context.Synchronize()) {
				IResolveVisitorNavigator navigator;
				if (searchScopes.Count == 1)
					navigator = searchScopes[0].GetNavigator(callback);
				else
					navigator = new CompositeResolveVisitorNavigator(searchScopes.Select(s => s.GetNavigator(callback)).ToArray());
				navigator = new DetectSkippableNodesNavigator(navigator, compilationUnit);
				CSharpResolver resolver = new CSharpResolver(ctx, this.CancellationToken);
				ResolveVisitor v = new ResolveVisitor(resolver, parsedFile, navigator);
				v.Scan(compilationUnit);
			}
		}