{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "../dist/legacy-test-out",
    "target": "ES2015",
    "module": "ES2020",
    "importHelpers": true,
    // The project uses Bazel for TypeScript compilation. Unlike with Bazel, we build all
    // sources as part of a single TypeScript compilation. This results in `@internal`
    // declarations not being omitted between the logical as defined per the Bazel targets.
    // This can cause issues where the `override` keyword is needed for the legacy TS
    // compilation, but not within Bazel where the overridden member has `@internal`.
    "noImplicitOverride": false,
    // We run the decorator downlevel transform when compiling the sources and tests.
    // Given that is the case, we do not need additional `design` metadata being emitted.
    // The default TS decorator metadata would also not work with ES2015 JIT.
    // https://github.com/angular/angular/issues/30106.
    "emitDecoratorMetadata": false
  },
  "exclude": [
    // Exclusions from the parent `tsconfig` need to be merged manually here.
    "bazel",
    "common/locales",
    "compiler-cli/integrationtest",
    "compiler-cli/test/compliance",
    "core/schematics",
    "elements/schematics",
    "examples/**",
    "http/**",
    "platform-server/integrationtest",
    "router/test/aot_ngsummary_test",

    // Additional exclusion since tests for the language-service never run within the
    // Saucelabs job and the package is not compatible with ESM TS compilation anyway.
    "language-service/**",
  ]
}