use location of config file as initial location for automatic type reference inclusion if possible (#12341)

src/compiler/program.ts

@@ -364,7 +364,8 @@ namespace ts {
 
             if (typeReferences.length) {
                 // This containingFilename needs to match with the one used in managed-side
-                const containingFilename = combinePaths(host.getCurrentDirectory(), "__inferred type names__.ts");
+                const containingDirectory = options.configFilePath ? getDirectoryPath(options.configFilePath) : host.getCurrentDirectory();
+                const containingFilename = combinePaths(containingDirectory, "__inferred type names__.ts");
                 const resolutions = resolveTypeReferenceDirectiveNamesWorker(typeReferences, containingFilename);
                 for (let i = 0; i < typeReferences.length; i++) {
                     processTypeReferenceDirective(typeReferences[i], resolutions[i]);

src/harness/unittests/tsserverProjectSystem.ts

@@ -2339,6 +2339,30 @@ namespace ts.projectSystem {
             projectService.openExternalProject({ rootFiles: toExternalFiles([f1.path, config.path]), options: {}, projectFileName: projectName });
             projectService.checkNumberOfProjects({ configuredProjects: 1 });
         });
+
+        it("types should load from config file path if config exists", () => {
+            const f1 = {
+                path: "/a/b/app.ts",
+                content: "let x = 1"
+            };
+            const config = {
+                path: "/a/b/tsconfig.json",
+                content: JSON.stringify({ compilerOptions: { types: ["node"], typeRoots: [] } })
+            };
+            const node = {
+                path: "/a/b/node_modules/@types/node/index.d.ts",
+                content: "declare var process: any"
+            };
+            const cwd = {
+                path: "/a/c"
+            };
+            debugger;
+            const host = createServerHost([f1, config, node, cwd], { currentDirectory: cwd.path });
+            const projectService = createProjectService(host);
+            projectService.openClientFile(f1.path);
+            projectService.checkNumberOfProjects({ configuredProjects: 1 });
+            checkProjectActualFiles(projectService.configuredProjects[0], [f1.path, node.path]);
+        });
     });
 
     describe("add the missing module file for inferred project", () => {

tests/baselines/reference/library-reference-13.trace.json

@@ -1,5 +1,5 @@
 [
-    "======== Resolving type reference directive 'jquery', containing file '/__inferred type names__.ts', root directory '/a/types'. ========",
+    "======== Resolving type reference directive 'jquery', containing file '/a/__inferred type names__.ts', root directory '/a/types'. ========",
     "Resolving with primary search path '/a/types'",
     "File '/a/types/jquery/package.json' does not exist.",
     "File '/a/types/jquery/index.d.ts' exist - use it as a name resolution result.",

tests/baselines/reference/typeRootsFromMultipleNodeModulesDirectories.trace.json

@@ -149,19 +149,19 @@
     "File '/node_modules/abc/index.js' does not exist.",
     "File '/node_modules/abc/index.jsx' does not exist.",
     "======== Module name 'abc' was not resolved. ========",
-    "======== Resolving type reference directive 'grumpy', containing file '/src/__inferred type names__.ts', root directory '/foo/node_modules/@types,/node_modules/@types'. ========",
+    "======== Resolving type reference directive 'grumpy', containing file '/foo/bar/__inferred type names__.ts', root directory '/foo/node_modules/@types,/node_modules/@types'. ========",
     "Resolving with primary search path '/foo/node_modules/@types, /node_modules/@types'",
     "File '/foo/node_modules/@types/grumpy/package.json' does not exist.",
     "File '/foo/node_modules/@types/grumpy/index.d.ts' exist - use it as a name resolution result.",
     "Resolving real path for '/foo/node_modules/@types/grumpy/index.d.ts', result '/foo/node_modules/@types/grumpy/index.d.ts'",
     "======== Type reference directive 'grumpy' was successfully resolved to '/foo/node_modules/@types/grumpy/index.d.ts', primary: true. ========",
-    "======== Resolving type reference directive 'sneezy', containing file '/src/__inferred type names__.ts', root directory '/foo/node_modules/@types,/node_modules/@types'. ========",
+    "======== Resolving type reference directive 'sneezy', containing file '/foo/bar/__inferred type names__.ts', root directory '/foo/node_modules/@types,/node_modules/@types'. ========",
     "Resolving with primary search path '/foo/node_modules/@types, /node_modules/@types'",
     "File '/foo/node_modules/@types/sneezy/package.json' does not exist.",
     "File '/foo/node_modules/@types/sneezy/index.d.ts' exist - use it as a name resolution result.",
     "Resolving real path for '/foo/node_modules/@types/sneezy/index.d.ts', result '/foo/node_modules/@types/sneezy/index.d.ts'",
     "======== Type reference directive 'sneezy' was successfully resolved to '/foo/node_modules/@types/sneezy/index.d.ts', primary: true. ========",
-    "======== Resolving type reference directive 'dopey', containing file '/src/__inferred type names__.ts', root directory '/foo/node_modules/@types,/node_modules/@types'. ========",
+    "======== Resolving type reference directive 'dopey', containing file '/foo/bar/__inferred type names__.ts', root directory '/foo/node_modules/@types,/node_modules/@types'. ========",
     "Resolving with primary search path '/foo/node_modules/@types, /node_modules/@types'",
     "File '/foo/node_modules/@types/dopey/package.json' does not exist.",
     "File '/foo/node_modules/@types/dopey/index.d.ts' does not exist.",