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fix(ngcc): fix undecorated child migration when exportAs is present (#34014)

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The undecorated child migration creates a synthetic decorator, which
contained `"exportAs": ["exportName"]` as obtained from the metadata of
the parent class. This is a problem, as `exportAs` needs to specified
as a comma-separated string instead of an array. This commit fixes the
bug by transforming the array of export names back to a comma-separated
string.

PR Close #34014
This commit is contained in:
JoostK
2019-11-23 19:33:18 +01:00
committed by Andrew Kushnir
parent 3cd43c1173
commit 24d1f9e87c
2 changed files with 8 additions and 11 deletions
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6
packages/compiler-cli/ngcc/test/integration/ngcc_spec.ts
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@ -972,6 +972,7 @@ runInEachFileSystem(() => {
@Directive({
selector: '[base]',
exportAs: 'base1, base2',
})
export class BaseDir {}
@ -994,13 +995,14 @@ runInEachFileSystem(() => {
const jsContents = fs.readFile(_(`/node_modules/test-package/index.js`));
expect(jsContents)
.toContain(
'DerivedDir.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: DerivedDir, selectors: [["", "base", ""]], ' +
'DerivedDir.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: DerivedDir, ' +
'selectors: [["", "base", ""]], exportAs: ["base1", "base2"], ' +
'features: [ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵCopyDefinitionFeature] });');
const dtsContents = fs.readFile(_(`/node_modules/test-package/index.d.ts`));
expect(dtsContents)
.toContain(
'static ɵdir: ɵngcc0.ɵɵDirectiveDefWithMeta<DerivedDir, "[base]", never, {}, {}, never>;');
'static ɵdir: ɵngcc0.ɵɵDirectiveDefWithMeta<DerivedDir, "[base]", ["base1", "base2"], {}, {}, never>;');
});
it('should generate a component definition with CopyDefinitionFeature for an undecorated child component',