angular · JeanMeche · Oct 28, 2025 · Oct 29, 2025
diff --git a/.ng-dev/google-sync-config.json b/.ng-dev/google-sync-config.json
@@ -6,7 +6,7 @@
     "packages/bazel/**",
     "packages/compiler-cli/linker/**",
     "packages/compiler-cli/src/ngtsc/sourcemaps/**",
-    "packages/compiler-cli/src/ngtsc/testing/**",
+    "packages/compiler-cli/src/ngtsc/testing/fake_common/**",
     "packages/compiler-cli/private/bazel.ts",
     "packages/compiler-cli/private/localize.ts",
     "packages/compiler-cli/private/tooling.ts",

diff --git a/packages/compiler-cli/BUILD.bazel b/packages/compiler-cli/BUILD.bazel
@@ -86,9 +86,11 @@ ts_project(
         "//packages/compiler-cli/src/ngtsc/diagnostics",
         "//packages/compiler-cli/src/ngtsc/docs",
         "//packages/compiler-cli/src/ngtsc/file_system",
+        "//packages/compiler-cli/src/ngtsc/file_system/testing",
         "//packages/compiler-cli/src/ngtsc/incremental",
         "//packages/compiler-cli/src/ngtsc/indexer",
         "//packages/compiler-cli/src/ngtsc/logging",
+        "//packages/compiler-cli/src/ngtsc/logging/testing",
         "//packages/compiler-cli/src/ngtsc/perf",
         "//packages/compiler-cli/src/ngtsc/program_driver",
         "//packages/compiler-cli/src/ngtsc/reflection",

diff --git a/packages/compiler-cli/private/BUILD.bazel b/packages/compiler-cli/private/BUILD.bazel
@@ -5,6 +5,8 @@ package(default_visibility = ["//visibility:public"])
 copy_to_bin(
     name = "files",
     srcs = [
+        "docs.ts",
+        "language_service.ts",
         "localize.ts",
         "migrations.ts",
         "testing.ts",
@@ -14,25 +16,33 @@ copy_to_bin(
 
 ts_project(
     name = "private",
-    srcs = glob(["*.ts"]),
+    srcs = glob(
+        ["*.ts"],
+    ),
     deps = [
         "//:node_modules/typescript",
         "//packages/compiler-cli/src/ngtsc/annotations",
         "//packages/compiler-cli/src/ngtsc/core",
         "//packages/compiler-cli/src/ngtsc/diagnostics",
+        "//packages/compiler-cli/src/ngtsc/docs",
         "//packages/compiler-cli/src/ngtsc/file_system",
         "//packages/compiler-cli/src/ngtsc/file_system/testing",
         "//packages/compiler-cli/src/ngtsc/imports",
+        "//packages/compiler-cli/src/ngtsc/incremental",
         "//packages/compiler-cli/src/ngtsc/logging",
+        "//packages/compiler-cli/src/ngtsc/logging/testing",
         "//packages/compiler-cli/src/ngtsc/metadata",
         "//packages/compiler-cli/src/ngtsc/partial_evaluator",
         "//packages/compiler-cli/src/ngtsc/perf",
+        "//packages/compiler-cli/src/ngtsc/program_driver",
         "//packages/compiler-cli/src/ngtsc/reflection",
         "//packages/compiler-cli/src/ngtsc/shims",
         "//packages/compiler-cli/src/ngtsc/sourcemaps",
+        "//packages/compiler-cli/src/ngtsc/testing",
         "//packages/compiler-cli/src/ngtsc/transform",
         "//packages/compiler-cli/src/ngtsc/transform/jit",
         "//packages/compiler-cli/src/ngtsc/translator",
+        "//packages/compiler-cli/src/ngtsc/typecheck",
         "//packages/compiler-cli/src/ngtsc/typecheck/api",
         "//packages/compiler-cli/src/ngtsc/util",
     ],

diff --git a/packages/compiler-cli/private/docs.ts b/packages/compiler-cli/private/docs.ts
@@ -0,0 +1,9 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.dev/license
+ */
+
+export type {DocEntry, DocEntryWithSourceInfo, EntryType, EntryCollection} from '../src/ngtsc/docs';
diff --git a/packages/compiler-cli/private/language_service.ts b/packages/compiler-cli/private/language_service.ts
@@ -0,0 +1,72 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.dev/license
+ */
+
+export {getAngularDecorators} from '../src/ngtsc/annotations';
+export {
+  CompilationTicket,
+  freshCompilationTicket,
+  incrementalFromCompilerTicket,
+  InternalOptions,
+  LegacyNgcOptions,
+  NgCompiler,
+  NgCompilerAdapter,
+  NgCompilerOptions,
+  resourceChangeTicket,
+  TypeCheckingOptions,
+} from '../src/ngtsc/core';
+export {Reference} from '../src/ngtsc/imports';
+export {TrackedIncrementalBuildStrategy} from '../src/ngtsc/incremental';
+export {
+  DirectiveMeta,
+  isExternalResource,
+  MetaKind,
+  PipeMeta,
+  Resource,
+} from '../src/ngtsc/metadata';
+export {PerfPhase} from '../src/ngtsc/perf';
+export {FileUpdate, ProgramDriver} from '../src/ngtsc/program_driver';
+export {
+  ClassDeclaration,
+  DeclarationNode,
+  isNamedClassDeclaration,
+  ReflectionHost,
+} from '../src/ngtsc/reflection';
+export {isShim} from '../src/ngtsc/shims';
+export {
+  ExpressionIdentifier,
+  findFirstMatchingNode,
+  hasExpressionIdentifier,
+} from '../src/ngtsc/typecheck';
+export {
+  CompletionKind,
+  DirectiveModuleExportDetails,
+  DirectiveSymbol,
+  DomBindingSymbol,
+  ElementSymbol,
+  InputBindingSymbol,
+  LetDeclarationSymbol,
+  OutputBindingSymbol,
+  PipeSymbol,
+  PotentialDirective,
+  PotentialDirectiveModuleSpecifierResolver,
+  PotentialImportMode,
+  PotentialPipe,
+  ReferenceSymbol,
+  SelectorlessComponentSymbol,
+  SelectorlessDirectiveSymbol,
+  Symbol,
+  SymbolKind,
+  TcbLocation,
+  TemplateDeclarationSymbol,
+  TemplateSymbol,
+  TemplateTypeChecker,
+  TsCompletionEntryInfo,
+  TypeCheckableDirectiveMeta,
+  VariableSymbol,
+} from '../src/ngtsc/typecheck/api';
+export {getRootDirs} from '../src/ngtsc/util/src/typescript';
diff --git a/packages/compiler-cli/private/testing.ts b/packages/compiler-cli/private/testing.ts
@@ -10,4 +10,13 @@ export {ImportedSymbolsTracker} from '../src/ngtsc/imports';
 export {TypeScriptReflectionHost} from '../src/ngtsc/reflection';
 export {getInitializerApiJitTransform} from '../src/ngtsc/transform/jit';
 
-export {initMockFileSystem, MockFileSystem} from '../src/ngtsc/file_system/testing';
+export {
+  initMockFileSystem,
+  MockFileSystem,
+  MockFileSystemNative,
+  runInEachFileSystem,
+} from '../src/ngtsc/file_system/testing';
+
+export {MockLogger} from '../src/ngtsc/logging/testing';
+export {loadTestDirectory, loadStandardTestFiles, getCachedSourceFile} from '../src/ngtsc/testing';
+export {NgCompilerOptions} from '../src/ngtsc/core';
diff --git a/packages/compiler-cli/src/ngtsc/core/index.ts b/packages/compiler-cli/src/ngtsc/core/index.ts
@@ -6,6 +6,14 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
+export {
+  DiagnosticCategoryLabel,
+  InternalOptions,
+  LegacyNgcOptions,
+  NgCompilerAdapter,
+  NgCompilerOptions,
+  TypeCheckingOptions,
+  UnifiedModulesHost,
+} from './api';
 export * from './src/compiler';
 export {NgCompilerHost} from './src/host';
-export {UnifiedModulesHost, NgCompilerOptions, DiagnosticCategoryLabel} from './api';
diff --git a/packages/compiler-cli/src/ngtsc/testing/BUILD.bazel b/packages/compiler-cli/src/ngtsc/testing/BUILD.bazel
@@ -4,7 +4,6 @@ package(default_visibility = ["//visibility:public"])
 
 ts_project(
     name = "testing",
-    testonly = True,
     srcs = glob([
         "**/*.ts",
     ]),

diff --git a/packages/compiler-cli/src/ngtsc/typecheck/index.ts b/packages/compiler-cli/src/ngtsc/typecheck/index.ts
@@ -11,3 +11,4 @@ export {TypeCheckContextImpl, getTemplateDiagnostics} from './src/context';
 export {TypeCheckShimGenerator} from './src/shim';
 export {typeCheckFilePath} from './src/type_check_file';
 export {createHostElement} from './src/host_bindings';
+export {ExpressionIdentifier, findFirstMatchingNode, hasExpressionIdentifier} from './src/comments';
diff --git a/packages/language-service/src/BUILD.bazel b/packages/language-service/src/BUILD.bazel
@@ -12,20 +12,7 @@ ts_project(
         "//:node_modules/typescript",
         "//packages/compiler",
         "//packages/compiler-cli",
-        "//packages/compiler-cli/src/ngtsc/core",
-        "//packages/compiler-cli/src/ngtsc/core:api",
-        "//packages/compiler-cli/src/ngtsc/diagnostics",
-        "//packages/compiler-cli/src/ngtsc/file_system",
-        "//packages/compiler-cli/src/ngtsc/imports",
-        "//packages/compiler-cli/src/ngtsc/incremental",
-        "//packages/compiler-cli/src/ngtsc/metadata",
-        "//packages/compiler-cli/src/ngtsc/perf",
-        "//packages/compiler-cli/src/ngtsc/program_driver",
-        "//packages/compiler-cli/src/ngtsc/reflection",
-        "//packages/compiler-cli/src/ngtsc/shims",
-        "//packages/compiler-cli/src/ngtsc/typecheck",
-        "//packages/compiler-cli/src/ngtsc/typecheck/api",
-        "//packages/compiler-cli/src/ngtsc/util",
+        "//packages/compiler-cli/private",
         "//packages/core/schematics/migrations/signal-migration/src",
         "//packages/language-service:api",
         "//packages/language-service/src/refactorings",

diff --git a/packages/language-service/src/adapters.ts b/packages/language-service/src/adapters.ts
@@ -8,16 +8,18 @@
 
 /** @fileoverview provides adapters for communicating with the ng compiler */
 
-import {ConfigurationHost} from '@angular/compiler-cli';
-import {NgCompilerAdapter} from '@angular/compiler-cli/src/ngtsc/core/api';
 import {
   AbsoluteFsPath,
+  ConfigurationHost,
   FileStats,
   PathSegment,
   PathString,
-} from '@angular/compiler-cli/src/ngtsc/file_system';
-import {isShim} from '@angular/compiler-cli/src/ngtsc/shims';
-import {getRootDirs} from '@angular/compiler-cli/src/ngtsc/util/src/typescript';
+} from '@angular/compiler-cli';
+import {
+  getRootDirs,
+  isShim,
+  NgCompilerAdapter,
+} from '@angular/compiler-cli/private/language_service';
 import * as p from 'path';
 import ts from 'typescript';
 

diff --git a/packages/language-service/src/attribute_completions.ts b/packages/language-service/src/attribute_completions.ts
@@ -13,7 +13,7 @@ import {
   TemplateSymbol,
   TemplateTypeChecker,
   TypeCheckableDirectiveMeta,
-} from '@angular/compiler-cli/src/ngtsc/typecheck/api';
+} from '@angular/compiler-cli/private/language_service';
 import ts from 'typescript';
 
 import {DisplayInfoKind, unsafeCastDisplayInfoKindToScriptElementKind} from './utils/display_parts';

diff --git a/packages/language-service/src/codefixes/code_fixes.ts b/packages/language-service/src/codefixes/code_fixes.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import {NgCompiler} from '@angular/compiler-cli/src/ngtsc/core';
+import {NgCompiler} from '@angular/compiler-cli/private/language_service';
 import tss from 'typescript';
 
 import {TypeCheckInfo} from '../utils';

diff --git a/packages/language-service/src/codefixes/fix_invalid_banana_in_box.ts b/packages/language-service/src/codefixes/fix_invalid_banana_in_box.ts
@@ -7,7 +7,7 @@
  */
 
 import {TmplAstBoundEvent} from '@angular/compiler';
-import {ErrorCode, ngErrorCode} from '@angular/compiler-cli/src/ngtsc/diagnostics';
+import {ErrorCode, ngErrorCode} from '@angular/compiler-cli';
 import tss from 'typescript';
 
 import {getTargetAtPosition, TargetNodeKind} from '../template_target';

diff --git a/packages/language-service/src/codefixes/fix_missing_import.ts b/packages/language-service/src/codefixes/fix_missing_import.ts
@@ -8,7 +8,7 @@
 
 import {ASTWithName, TmplAstElement} from '@angular/compiler';
 import {ErrorCode as NgCompilerErrorCode, ngErrorCode} from '@angular/compiler-cli';
-import {PotentialDirective, PotentialPipe} from '@angular/compiler-cli/src/ngtsc/typecheck/api';
+import {PotentialDirective, PotentialPipe} from '@angular/compiler-cli/private/language_service';
 import ts from 'typescript';
 
 import {getTargetAtPosition, TargetNodeKind} from '../template_target';

diff --git a/packages/language-service/src/codefixes/fix_missing_required_inputs.ts b/packages/language-service/src/codefixes/fix_missing_required_inputs.ts
@@ -14,8 +14,8 @@ import {
   TmplAstTemplate,
   TmplAstTextAttribute,
 } from '@angular/compiler';
-import {ErrorCode, ngErrorCode} from '@angular/compiler-cli/src/ngtsc/diagnostics';
-import {TypeCheckableDirectiveMeta} from '@angular/compiler-cli/src/ngtsc/typecheck/api';
+import {ErrorCode, ngErrorCode} from '@angular/compiler-cli';
+import {TypeCheckableDirectiveMeta} from '@angular/compiler-cli/private/language_service';
 import ts from 'typescript';
 
 import {getTargetAtPosition, TargetNodeKind} from '../template_target';

diff --git a/packages/language-service/src/codefixes/fix_unused_standalone_imports.ts b/packages/language-service/src/codefixes/fix_unused_standalone_imports.ts
@@ -6,7 +6,7 @@
  * found in the LICENSE file at https://angular.dev/license
  */
 
-import {ErrorCode, ngErrorCode} from '@angular/compiler-cli/src/ngtsc/diagnostics';
+import {ErrorCode, ngErrorCode} from '@angular/compiler-cli';
 import tss from 'typescript';
 
 import {CodeActionMeta, FixIdForCodeFixesAll} from './utils';

diff --git a/packages/language-service/src/codefixes/utils.ts b/packages/language-service/src/codefixes/utils.ts
@@ -7,7 +7,7 @@
  */
 
 import {absoluteFrom} from '@angular/compiler-cli';
-import {NgCompiler} from '@angular/compiler-cli/src/ngtsc/core';
+import {NgCompiler} from '@angular/compiler-cli/private/language_service';
 import tss from 'typescript';
 
 import {TypeCheckInfo} from '../utils';

diff --git a/packages/language-service/src/compiler_factory.ts b/packages/language-service/src/compiler_factory.ts
@@ -5,18 +5,17 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.dev/license
  */
-
+import {AbsoluteFsPath, resolve} from '@angular/compiler-cli';
 import {
   CompilationTicket,
   freshCompilationTicket,
   incrementalFromCompilerTicket,
   NgCompiler,
+  NgCompilerOptions,
+  ProgramDriver,
   resourceChangeTicket,
-} from '@angular/compiler-cli/src/ngtsc/core';
-import {NgCompilerOptions} from '@angular/compiler-cli/src/ngtsc/core/api';
-import {AbsoluteFsPath, resolve} from '@angular/compiler-cli/src/ngtsc/file_system';
-import {TrackedIncrementalBuildStrategy} from '@angular/compiler-cli/src/ngtsc/incremental';
-import {ProgramDriver} from '@angular/compiler-cli/src/ngtsc/program_driver';
+  TrackedIncrementalBuildStrategy,
+} from '@angular/compiler-cli/private/language_service';
 
 import {LanguageServiceAdapter} from './adapters';
 

diff --git a/packages/language-service/src/completions.ts b/packages/language-service/src/completions.ts
@@ -33,14 +33,14 @@ import {
   TmplAstLetDeclaration,
   TmplAstSwitchBlock,
 } from '@angular/compiler';
-import {NgCompiler} from '@angular/compiler-cli/src/ngtsc/core';
 import {
+  NgCompiler,
   CompletionKind,
   PotentialDirective,
   SymbolKind,
   TemplateDeclarationSymbol,
   TemplateTypeChecker,
-} from '@angular/compiler-cli/src/ngtsc/typecheck/api';
+} from '@angular/compiler-cli/private/language_service';
 import ts from 'typescript';
 
 import {

diff --git a/packages/language-service/src/definitions.ts b/packages/language-service/src/definitions.ts
@@ -15,37 +15,38 @@ import {
   TmplAstTemplate,
   TmplAstTextAttribute,
 } from '@angular/compiler';
-import {NgCompiler} from '@angular/compiler-cli/src/ngtsc/core';
-import {absoluteFrom} from '@angular/compiler-cli/src/ngtsc/file_system';
-import {isExternalResource, Resource} from '@angular/compiler-cli/src/ngtsc/metadata';
+import {absoluteFrom} from '@angular/compiler-cli';
 import {
   DirectiveSymbol,
   DomBindingSymbol,
   ElementSymbol,
+  isExternalResource,
+  NgCompiler,
+  Resource,
   SelectorlessComponentSymbol,
   SelectorlessDirectiveSymbol,
   Symbol,
   SymbolKind,
   TcbLocation,
   TemplateSymbol,
   TemplateTypeChecker,
-} from '@angular/compiler-cli/src/ngtsc/typecheck/api';
+} from '@angular/compiler-cli/private/language_service';
 import ts from 'typescript';
 
 import {convertToTemplateDocumentSpan} from './references_and_rename_utils';
 import {getTargetAtPosition, TargetNodeKind} from './template_target';
-import {findTightestNode, getParentClassDeclaration} from './utils/ts_utils';
 import {
   getDirectiveMatchesForAttribute,
   getDirectiveMatchesForElementTag,
-  getTypeCheckInfoAtPosition,
   getTemplateLocationFromTcbLocation,
   getTextSpanOfNode,
+  getTypeCheckInfoAtPosition,
   isDollarEvent,
   isTypeScriptFile,
-  TypeCheckInfo,
   toTextSpan,
+  TypeCheckInfo,
 } from './utils';
+import {findTightestNode, getParentClassDeclaration} from './utils/ts_utils';
 
 interface DefinitionMeta {
   node: AST | TmplAstNode;