Merge pull request microsoft#33681 from microsoft/autoTypeReference

Fix issue when types installed after watch/editor is opened for auto type reference that is for global types not being detected

Author: sheetalkamat

src/compiler/program.ts

@@ -545,6 +545,9 @@ namespace ts {
         return resolutions;
     }
 
+    /* @internal */
+    export const inferredTypesContainingFile = "__inferred type names__.ts";
+
     interface DiagnosticCache<T extends Diagnostic> {
         perFile?: Map<T[]>;
         allDiagnostics?: Diagnostic[];
@@ -875,7 +878,7 @@ namespace ts {
             if (typeReferences.length) {
                 // This containingFilename needs to match with the one used in managed-side
                 const containingDirectory = options.configFilePath ? getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
-                const containingFilename = combinePaths(containingDirectory, "__inferred type names__.ts");
+                const containingFilename = combinePaths(containingDirectory, inferredTypesContainingFile);
                 const resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (let i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);

src/compiler/resolutionCache.ts

@@ -669,6 +669,11 @@ namespace ts {
                         // Mark the file as needing re-evaluation of module resolution instead of using it blindly.
                         resolution.isInvalidated = true;
                         (filesWithInvalidatedResolutions || (filesWithInvalidatedResolutions = createMap<true>())).set(containingFilePath, true);
+
+                        // When its a file with inferred types resolution, invalidate type reference directive resolution
+                        if (containingFilePath.endsWith(inferredTypesContainingFile)) {
+                            resolutionHost.onChangedAutomaticTypeDirectiveNames();
+                        }
                     }
                 });
             });

src/testRunner/unittests/tscWatch/resolutionCache.ts

@@ -402,6 +402,47 @@ declare module "fs" {
                 host.checkTimeoutQueueLength(0);
             });
         });
+
+        it("when types in compiler option are global and installed at later point", () => {
+            const projectRoot = "/user/username/projects/myproject";
+            const app: File = {
+                path: `${projectRoot}/lib/app.ts`,
+                content: `myapp.component("hello");`
+            };
+            const tsconfig: File = {
+                path: `${projectRoot}/tsconfig.json`,
+                content: JSON.stringify({
+                    compilerOptions: {
+                        module: "none",
+                        types: ["@myapp/ts-types"]
+                    }
+                })
+            };
+            const host = createWatchedSystem([app, tsconfig, libFile]);
+            const watch = createWatchOfConfigFile(tsconfig.path, host);
+            checkProgramActualFiles(watch(), [app.path, libFile.path]);
+            host.checkTimeoutQueueLength(0);
+            checkOutputErrorsInitial(host, [
+                createCompilerDiagnostic(Diagnostics.Cannot_find_type_definition_file_for_0, "@myapp/ts-types")
+            ]);
+
+            host.ensureFileOrFolder({
+                path: `${projectRoot}/node_modules/@myapp/ts-types/package.json`,
+                content: JSON.stringify({
+                    version: "1.65.1",
+                    types: "types/somefile.define.d.ts"
+                })
+            });
+            host.ensureFileOrFolder({
+                path: `${projectRoot}/node_modules/@myapp/ts-types/types/somefile.define.d.ts`,
+                content: `
+declare namespace myapp {
+    function component(str: string): number;
+}`
+            });
+            host.checkTimeoutQueueLengthAndRun(1);
+            checkOutputErrorsIncremental(host, emptyArray);
+        });
     });
 
     describe("unittests:: tsc-watch:: resolutionCache:: tsc-watch with modules linked to sibling folder", () => {