diff --git a/packages/angular_devkit/build_angular/BUILD.bazel b/packages/angular_devkit/build_angular/BUILD.bazel
index 70c753060de5..e4bf59477b95 100644
--- a/packages/angular_devkit/build_angular/BUILD.bazel
+++ b/packages/angular_devkit/build_angular/BUILD.bazel
@@ -310,7 +310,9 @@ ts_library(
LARGE_SPECS = {
"application": {
- "shards": 10,
+ "shards": 16,
+ "size": "large",
+ "flaky": True,
"extra_deps": [
"@npm//buffer",
],
diff --git a/packages/angular_devkit/build_angular/src/builders/application/tests/behavior/rebuild-errors_spec.ts b/packages/angular_devkit/build_angular/src/builders/application/tests/behavior/rebuild-errors_spec.ts
new file mode 100644
index 000000000000..7dcac124afb0
--- /dev/null
+++ b/packages/angular_devkit/build_angular/src/builders/application/tests/behavior/rebuild-errors_spec.ts
@@ -0,0 +1,317 @@
+/**
+ * @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.io/license
+ */
+
+import { logging } from '@angular-devkit/core';
+import { concatMap, count, timeout } from 'rxjs';
+import { buildApplication } from '../../index';
+import { APPLICATION_BUILDER_INFO, BASE_OPTIONS, describeBuilder } from '../setup';
+
+/**
+ * Maximum time in milliseconds for single build/rebuild
+ * This accounts for CI variability.
+ */
+export const BUILD_TIMEOUT = 30_000;
+
+describeBuilder(buildApplication, APPLICATION_BUILDER_INFO, (harness) => {
+ describe('Behavior: "Rebuild Error Detection"', () => {
+ it('detects template errors with no AOT codegen or TS emit differences', async () => {
+ harness.useTarget('build', {
+ ...BASE_OPTIONS,
+ watch: true,
+ });
+
+ const goodDirectiveContents = `
+ import { Directive, Input } from '@angular/core';
+ @Directive({ selector: 'dir' })
+ export class Dir {
+ @Input() foo: number;
+ }
+ `;
+
+ const typeErrorText = `Type 'number' is not assignable to type 'string'.`;
+
+ // Create a directive and add to application
+ await harness.writeFile('src/app/dir.ts', goodDirectiveContents);
+ await harness.writeFile(
+ 'src/app/app.module.ts',
+ `
+ import { NgModule } from '@angular/core';
+ import { BrowserModule } from '@angular/platform-browser';
+ import { AppComponent } from './app.component';
+ import { Dir } from './dir';
+ @NgModule({
+ declarations: [
+ AppComponent,
+ Dir,
+ ],
+ imports: [
+ BrowserModule
+ ],
+ providers: [],
+ bootstrap: [AppComponent]
+ })
+ export class AppModule { }
+ `,
+ );
+
+ // Create app component that uses the directive
+ await harness.writeFile(
+ 'src/app/app.component.ts',
+ `
+ import { Component } from '@angular/core'
+ @Component({
+ selector: 'app-root',
+ template: '
',
+ })
+ export class AppComponent { }
+ `,
+ );
+
+ const builderAbort = new AbortController();
+ const buildCount = await harness
+ .execute({ outputLogsOnFailure: false, signal: builderAbort.signal })
+ .pipe(
+ timeout(BUILD_TIMEOUT),
+ concatMap(async ({ result, logs }, index) => {
+ switch (index) {
+ case 0:
+ expect(result?.success).toBeTrue();
+
+ // Update directive to use a different input type for 'foo' (number -> string)
+ // Should cause a template error
+ await harness.writeFile(
+ 'src/app/dir.ts',
+ `
+ import { Directive, Input } from '@angular/core';
+ @Directive({ selector: 'dir' })
+ export class Dir {
+ @Input() foo: string;
+ }
+ `,
+ );
+
+ break;
+ case 1:
+ expect(result?.success).toBeFalse();
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringMatching(typeErrorText),
+ }),
+ );
+
+ // Make an unrelated change to verify error cache was updated
+ // Should persist error in the next rebuild
+ await harness.modifyFile('src/main.ts', (content) => content + '\n');
+
+ break;
+ case 2:
+ expect(result?.success).toBeFalse();
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringMatching(typeErrorText),
+ }),
+ );
+
+ // Revert the directive change that caused the error
+ // Should remove the error
+ await harness.writeFile('src/app/dir.ts', goodDirectiveContents);
+
+ break;
+ case 3:
+ expect(result?.success).toBeTrue();
+ expect(logs).not.toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringMatching(typeErrorText),
+ }),
+ );
+
+ // Make an unrelated change to verify error cache was updated
+ // Should continue showing no error
+ await harness.modifyFile('src/main.ts', (content) => content + '\n');
+
+ break;
+ case 4:
+ expect(result?.success).toBeTrue();
+ expect(logs).not.toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringMatching(typeErrorText),
+ }),
+ );
+
+ // Test complete - abort watch mode
+ builderAbort?.abort();
+ break;
+ }
+ }),
+ count(),
+ )
+ .toPromise();
+
+ expect(buildCount).toBe(5);
+ });
+
+ it('detects cumulative block syntax errors', async () => {
+ harness.useTarget('build', {
+ ...BASE_OPTIONS,
+ watch: true,
+ });
+
+ const builderAbort = new AbortController();
+ const buildCount = await harness
+ .execute({ outputLogsOnFailure: false, signal: builderAbort.signal })
+ .pipe(
+ timeout(BUILD_TIMEOUT),
+ concatMap(async ({ logs }, index) => {
+ switch (index) {
+ case 0:
+ // Add invalid block syntax
+ await harness.appendToFile('src/app/app.component.html', '@one');
+
+ break;
+ case 1:
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@one'),
+ }),
+ );
+
+ // Make an unrelated change to verify error cache was updated
+ // Should persist error in the next rebuild
+ await harness.modifyFile('src/main.ts', (content) => content + '\n');
+
+ break;
+ case 2:
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@one'),
+ }),
+ );
+
+ // Add more invalid block syntax
+ await harness.appendToFile('src/app/app.component.html', '@two');
+
+ break;
+ case 3:
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@one'),
+ }),
+ );
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@two'),
+ }),
+ );
+
+ // Add more invalid block syntax
+ await harness.appendToFile('src/app/app.component.html', '@three');
+
+ break;
+ case 4:
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@one'),
+ }),
+ );
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@two'),
+ }),
+ );
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@three'),
+ }),
+ );
+
+ // Revert the changes that caused the error
+ // Should remove the error
+ await harness.writeFile('src/app/app.component.html', 'GOOD
');
+
+ break;
+ case 5:
+ expect(logs).not.toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@one'),
+ }),
+ );
+ expect(logs).not.toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@two'),
+ }),
+ );
+ expect(logs).not.toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringContaining('@three'),
+ }),
+ );
+
+ // Test complete - abort watch mode
+ builderAbort?.abort();
+ break;
+ }
+ }),
+ count(),
+ )
+ .toPromise();
+
+ expect(buildCount).toBe(6);
+ });
+
+ it('recovers from component stylesheet error', async () => {
+ harness.useTarget('build', {
+ ...BASE_OPTIONS,
+ watch: true,
+ aot: false,
+ });
+
+ const builderAbort = new AbortController();
+ const buildCount = await harness
+ .execute({ outputLogsOnFailure: false, signal: builderAbort.signal })
+ .pipe(
+ timeout(BUILD_TIMEOUT),
+ concatMap(async ({ result, logs }, index) => {
+ switch (index) {
+ case 0:
+ await harness.writeFile('src/app/app.component.css', 'invalid-css-content');
+
+ break;
+ case 1:
+ expect(logs).toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringMatching('invalid-css-content'),
+ }),
+ );
+
+ await harness.writeFile('src/app/app.component.css', 'p { color: green }');
+
+ break;
+ case 2:
+ expect(logs).not.toContain(
+ jasmine.objectContaining({
+ message: jasmine.stringMatching('invalid-css-content'),
+ }),
+ );
+
+ harness
+ .expectFile('dist/browser/main.js')
+ .content.toContain('p {\\n color: green;\\n}');
+
+ // Test complete - abort watch mode
+ builderAbort?.abort();
+ break;
+ }
+ }),
+ count(),
+ )
+ .toPromise();
+
+ expect(buildCount).toBe(3);
+ });
+ });
+});
diff --git a/packages/angular_devkit/build_angular/src/tools/esbuild/angular/compilation/aot-compilation.ts b/packages/angular_devkit/build_angular/src/tools/esbuild/angular/compilation/aot-compilation.ts
index 8df67c906e59..8e896db3faf6 100644
--- a/packages/angular_devkit/build_angular/src/tools/esbuild/angular/compilation/aot-compilation.ts
+++ b/packages/angular_devkit/build_angular/src/tools/esbuild/angular/compilation/aot-compilation.ts
@@ -105,6 +105,8 @@ export class AotCompilation extends AngularCompilation {
for (const resourceDependency of resourceDependencies) {
if (hostOptions.modifiedFiles.has(resourceDependency)) {
this.#state.diagnosticCache.delete(sourceFile);
+ // Also mark as affected in case changed template affects diagnostics
+ affectedFiles.add(sourceFile);
}
}
}