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refactor(ivy): ngcc - implement abstract FileSystem (#29643)

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This commit introduces a new interface, which abstracts access
to the underlying `FileSystem`. There is initially one concrete
implementation, `NodeJsFileSystem`, which is simply wrapping the
`fs` library of NodeJs.

Going forward, we can provide a `MockFileSystem` for test, which
should allow us to stop using `mock-fs` for most of the unit tests.
We could also implement a `CachedFileSystem` that may improve the
performance of ngcc.

PR Close #29643
This commit is contained in:
Pete Bacon Darwin
2019-04-28 20:47:57 +01:00
committed by Andrew Kushnir
parent 1fd2cc6340
commit 16d7dde2ad
36 changed files with 590 additions and 353 deletions
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10
packages/compiler-cli/ngcc/src/analysis/private_declarations_analyzer.ts
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@ -7,6 +7,7 @@
*/
import * as ts from 'typescript';
import {AbsoluteFsPath} from '../../../src/ngtsc/path';
import {Declaration} from '../../../src/ngtsc/reflection';
import {NgccReflectionHost} from '../host/ngcc_host';
import {hasNameIdentifier, isDefined} from '../utils';
@ -14,8 +15,8 @@ import {NgccReferencesRegistry} from './ngcc_references_registry';
export interface ExportInfo {
identifier: string;
from: string;
dtsFrom?: string|null;
from: AbsoluteFsPath;
dtsFrom?: AbsoluteFsPath|null;
alias?: string|null;
}
export type PrivateDeclarationsAnalyses = ExportInfo[];
@ -93,11 +94,12 @@ export class PrivateDeclarationsAnalyzer {
});
return Array.from(privateDeclarations.keys()).map(id => {
const from = id.getSourceFile().fileName;
const from = AbsoluteFsPath.fromSourceFile(id.getSourceFile());
const declaration = privateDeclarations.get(id) !;
const alias = exportAliasDeclarations.get(id) || null;
const dtsDeclaration = this.host.getDtsDeclaration(declaration.node);
const dtsFrom = dtsDeclaration && dtsDeclaration.getSourceFile().fileName;
const dtsFrom =
dtsDeclaration && AbsoluteFsPath.fromSourceFile(dtsDeclaration.getSourceFile());
return {identifier: id.text, from, dtsFrom, alias};
});