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fix(tsc-wrapped): still emit version 1 metadata to allow to use new components in old setups

This commit is contained in:
Tobias Bosch 2016-11-23 11:51:25 -08:00 committed by vsavkin
parent 897555ca78
commit bc69c74be0
1 changed files with 13 additions and 1 deletions
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14
tools/@angular/tsc-wrapped/src/compiler_host.ts
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@ -12,6 +12,7 @@ import * as ts from 'typescript';
import NgOptions from './options';
import {MetadataCollector} from './collector';
import {ModuleMetadata} from './schema';
export function formatDiagnostics(d: ts.Diagnostic[]): string {
const host: ts.FormatDiagnosticsHost = {
@ -119,8 +120,19 @@ export class MetadataWriterHost extends DelegatingHost {
const path = emitFilePath.replace(/*DTS*/ /\.js$/, '.metadata.json');
const metadata =
this.metadataCollector.getMetadata(sourceFile, !!this.ngOptions.strictMetadataEmit);
const metadatas: ModuleMetadata[] = [metadata];
if (metadata && metadata.metadata) {
const metadataText = JSON.stringify(metadata);
if (metadata.version === 2) {
// Also emit a version 1 so that older clients can consume new metadata files as well.
// We can write the same data as version 2 is a strict super set.
metadatas.push({
__symbolic: metadata.__symbolic,
exports: metadata.exports,
metadata: metadata.metadata,
version: 1
});
}
const metadataText = JSON.stringify(metadatas);
writeFileSync(path, metadataText, {encoding: 'utf-8'});
}
}