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feat(ivy): create a ModuleResolver to map module paths to files (#27697)

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PR Close #27697
This commit is contained in:
Alex Rickabaugh
2018-11-16 17:01:56 +01:00
parent 9e5016c845
commit 19a2b783cf
3 changed files with 26 additions and 2 deletions
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2
packages/compiler-cli/src/ngtsc/imports/index.ts
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@ -8,4 +8,4 @@
export {ImportRewriter, NoopImportRewriter, R3SymbolsImportRewriter, validateAndRewriteCoreSymbol} from './src/core';
export {AbsoluteReference, ImportMode, NodeReference, Reference, ResolvedReference} from './src/references';
export {ReferenceResolver, TsReferenceResolver} from './src/resolver';
export {ModuleResolver, ReferenceResolver, TsReferenceResolver} from './src/resolver';

22
packages/compiler-cli/src/ngtsc/imports/src/resolver.ts
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@ -17,6 +17,28 @@ export interface ReferenceResolver {
Reference<ts.Declaration>;
}
/**
* Used by `RouterEntryPointManager` and `NgModuleRouteAnalyzer` (which is in turn is used by
* `NgModuleDecoratorHandler`) for resolving the module source-files references in lazy-loaded
* routes (relative to the source-file containing the `NgModule` that provides the route
* definitions).
*/
export class ModuleResolver {
constructor(
private program: ts.Program, private compilerOptions: ts.CompilerOptions,
private host: ts.CompilerHost) {}
resolveModuleName(module: string, containingFile: ts.SourceFile): ts.SourceFile|null {
const resolved =
ts.resolveModuleName(module, containingFile.fileName, this.compilerOptions, this.host)
.resolvedModule;
if (resolved === undefined) {
return null;
}
return this.program.getSourceFile(resolved.resolvedFileName) || null;
}
}
export class TsReferenceResolver implements ReferenceResolver {
private moduleExportsCache = new Map<string, Map<ts.Declaration, string>|null>();