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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 95429d55ff
commit ead169a402
2 changed files with 8 additions and 11 deletions
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13
packages/compiler-cli/ngcc/src/migrations/utils.ts
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@ -51,7 +51,7 @@ export function createDirectiveDecorator(
metaArgs.push(property('selector', metadata.selector));
}
if (metadata.exportAs !== null) {
metaArgs.push(property('exportAs', metadata.exportAs));
metaArgs.push(property('exportAs', metadata.exportAs.join(', ')));
}
args.push(reifySourceFile(ts.createObjectLiteral(metaArgs)));
}
@ -77,7 +77,7 @@ export function createComponentDecorator(
metaArgs.push(property('selector', metadata.selector));
}
if (metadata.exportAs !== null) {
metaArgs.push(property('exportAs', metadata.exportAs));
metaArgs.push(property('exportAs', metadata.exportAs.join(', ')));
}
return {
name: 'Component',
@ -105,13 +105,8 @@ export function createInjectableDecorator(clazz: ClassDeclaration): Decorator {
};
}
function property(name: string, value: string | string[]): ts.PropertyAssignment {
if (typeof value === 'string') {
return ts.createPropertyAssignment(name, ts.createStringLiteral(value));
} else {
return ts.createPropertyAssignment(
name, ts.createArrayLiteral(value.map(v => ts.createStringLiteral(v))));
}
function property(name: string, value: string): ts.PropertyAssignment {
return ts.createPropertyAssignment(name, ts.createStringLiteral(value));
}
const EMPTY_SF = ts.createSourceFile('(empty)', '', ts.ScriptTarget.Latest);