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refactor: utilize type narrowing (#33075)

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PR Close #33075
This commit is contained in:
Danny Skoog
2019-10-09 17:17:52 +02:00
committed by Miško Hevery
parent 1ae77da609
commit 6ab5f3648a
29 changed files with 73 additions and 80 deletions
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25
packages/compiler/src/metadata_resolver.ts
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@ -1012,18 +1012,19 @@ export class CompileMetadataResolver {
return;
} else {
const providersInfo =
(<string[]>providers.reduce(
(soFar: string[], seenProvider: any, seenProviderIdx: number) => {
if (seenProviderIdx < providerIdx) {
soFar.push(`${stringifyType(seenProvider)}`);
} else if (seenProviderIdx == providerIdx) {
soFar.push(`?${stringifyType(seenProvider)}?`);
} else if (seenProviderIdx == providerIdx + 1) {
soFar.push('...');
}
return soFar;
},
[]))
providers
.reduce(
(soFar: string[], seenProvider: any, seenProviderIdx: number) => {
if (seenProviderIdx < providerIdx) {
soFar.push(`${stringifyType(seenProvider)}`);
} else if (seenProviderIdx == providerIdx) {
soFar.push(`?${stringifyType(seenProvider)}?`);
} else if (seenProviderIdx == providerIdx + 1) {
soFar.push('...');
}
return soFar;
},
[])
.join(', ');
this._reportError(
syntaxError(