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refactor(ngcc): resolve modules based on the provided moduleResolver (#34494)

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The `DependencyHost` implementations were duplicating the "postfix" strings
which are used to find matching paths when resolving module specifiers.
Now the hosts reuse the postfixes given to the `ModuleResolver` that is
passed to the host.

PR Close #34494
This commit is contained in:
Pete Bacon Darwin
2019-12-19 22:43:12 +00:00
committed by Alex Rickabaugh
parent e2b184515b
commit 69950e3888
3 changed files with 36 additions and 2 deletions
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34
packages/compiler-cli/ngcc/test/dependencies/esm_dependency_host_spec.ts
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@ -135,6 +135,40 @@ runInEachFileSystem(() => {
expect(dependencies.has(_('/node_modules/lib-1'))).toBe(true);
expect(dependencies.has(_('/node_modules/lib-1/sub-1'))).toBe(true);
});
it('should resolve modules based on the provided `moduleResolver`', () => {
const fs = getFileSystem();
loadTestFiles([
{
name: _('/external/index.d.ts'),
contents: `import * from './internal-typings';`,
},
{
name: _('/external/internal-typings.d.ts'),
contents: `export {X} from 'lib-1';\nexport {Y} from 'lib-1/sub-1';`,
}
]);
// Default JS mode will not pick up `internal-typings.d.ts` dependency
const jsHost = new EsmDependencyHost(fs, new ModuleResolver(fs));
const jsDeps = createDependencyInfo();
jsHost.collectDependencies(_('/external/index.d.ts'), jsDeps);
expect(jsDeps.dependencies.size).toEqual(0);
expect(jsDeps.deepImports.size).toEqual(0);
expect(jsDeps.missing.size).toEqual(1);
expect(jsDeps.missing.has(relativeFrom('./internal-typings'))).toBeTruthy();
// Typings mode will pick up `internal-typings.d.ts` dependency
const dtsHost = new EsmDependencyHost(
fs, new ModuleResolver(fs, undefined, ['', '.d.ts', 'index.d.ts']));
const dtsDeps = createDependencyInfo();
dtsHost.collectDependencies(_('/external/index.d.ts'), dtsDeps);
expect(dtsDeps.dependencies.size).toEqual(2);
expect(dtsDeps.dependencies.has(_('/node_modules/lib-1'))).toBeTruthy();
expect(dtsDeps.dependencies.has(_('/node_modules/lib-1/sub-1'))).toBeTruthy();
expect(dtsDeps.deepImports.size).toEqual(0);
expect(dtsDeps.missing.size).toEqual(0);
});
});
function setupMockFileSystem(): void {