Add a command to fetch the includes graph for a TU (#12085)

Author: lukka

Extension/src/LanguageServer/client.ts

@@ -536,6 +536,16 @@ interface DidChangeActiveEditorParams {
     selection?: Range;
 }
 
+interface GetIncludesParams
+{
+    maxDepth: number;
+}
+
+interface GetIncludesResult
+{
+    includedFiles: string[];
+}
+
 // Requests
 const InitializationRequest: RequestType<CppInitializationParams, string, void> = new RequestType<CppInitializationParams, string, void>('cpptools/initialize');
 const QueryCompilerDefaultsRequest: RequestType<QueryDefaultCompilerParams, configs.CompilerDefaults, void> = new RequestType<QueryDefaultCompilerParams, configs.CompilerDefaults, void>('cpptools/queryCompilerDefaults');
@@ -553,6 +563,7 @@ const ExtractToFunctionRequest: RequestType<ExtractToFunctionParams, WorkspaceEd
 const GoToDirectiveInGroupRequest: RequestType<GoToDirectiveInGroupParams, Position | undefined, void> = new RequestType<GoToDirectiveInGroupParams, Position | undefined, void>('cpptools/goToDirectiveInGroup');
 const GenerateDoxygenCommentRequest: RequestType<GenerateDoxygenCommentParams, GenerateDoxygenCommentResult | undefined, void> = new RequestType<GenerateDoxygenCommentParams, GenerateDoxygenCommentResult, void>('cpptools/generateDoxygenComment');
 const ChangeCppPropertiesRequest: RequestType<CppPropertiesParams, void, void> = new RequestType<CppPropertiesParams, void, void>('cpptools/didChangeCppProperties');
+const IncludesRequest: RequestType<GetIncludesParams, GetIncludesResult, void> = new RequestType<GetIncludesParams, GetIncludesResult, void>('cpptools/getIncludes');
 
 // Notifications to the server
 const DidOpenNotification: NotificationType<DidOpenTextDocumentParams> = new NotificationType<DidOpenTextDocumentParams>('textDocument/didOpen');
@@ -781,6 +792,7 @@ export interface Client {
     getShowConfigureIntelliSenseButton(): boolean;
     setShowConfigureIntelliSenseButton(show: boolean): void;
     addTrustedCompiler(path: string): Promise<void>;
+    getIncludes(maxDepth: number): Promise<GetIncludesResult>;
 }
 
 export function createClient(workspaceFolder?: vscode.WorkspaceFolder): Client {
@@ -2190,6 +2202,12 @@ export class DefaultClient implements Client {
         await this.languageClient.sendNotification(DidOpenNotification, params);
     }
 
+    public async getIncludes(maxDepth: number): Promise<GetIncludesResult> {
+        const params: GetIncludesParams = { maxDepth: maxDepth };
+        await this.ready;
+        return this.languageClient.sendRequest(IncludesRequest, params);
+    }
+
     /**
      * a Promise that can be awaited to know when it's ok to proceed.
      *
@@ -4012,4 +4030,5 @@ class NullClient implements Client {
     getShowConfigureIntelliSenseButton(): boolean { return false; }
     setShowConfigureIntelliSenseButton(show: boolean): void { }
     addTrustedCompiler(path: string): Promise<void> { return Promise.resolve(); }
+    getIncludes(): Promise<GetIncludesResult> { return Promise.resolve({} as GetIncludesResult); }
 }

Extension/src/LanguageServer/extension.ts

@@ -401,6 +401,7 @@ export function registerCommands(enabled: boolean): void {
     commandDisposables.push(vscode.commands.registerCommand('C_Cpp.ExtractToFreeFunction', enabled ? () => onExtractToFunction(true, false) : onDisabledCommand));
     commandDisposables.push(vscode.commands.registerCommand('C_Cpp.ExtractToMemberFunction', enabled ? () => onExtractToFunction(false, true) : onDisabledCommand));
     commandDisposables.push(vscode.commands.registerCommand('C_Cpp.ExpandSelection', enabled ? (r: Range) => onExpandSelection(r) : onDisabledCommand));
+    commandDisposables.push(vscode.commands.registerCommand('C_Cpp.getIncludes', enabled ? (maxDepth: number) => getIncludes(maxDepth) : onDisabledCommand));
 }
 
 function onDisabledCommand() {
@@ -1305,3 +1306,7 @@ export async function preReleaseCheck(): Promise<void> {
         }
     }
 }
+
+export async function getIncludes(maxDepth: number): Promise<any> {
+    return clients.ActiveClient.getIncludes(maxDepth);
+}