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refactor(ivy): extract selector scope logic to a new ngtsc package (#28852)

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This commit splits apart selector_scope.ts in ngtsc and extracts the logic
into two separate classes, the LocalModuleScopeRegistry and the
DtsModuleScopeResolver. The logic is cleaned up significantly and new tests
are added to verify behavior.

LocalModuleScopeRegistry implements the NgModule semantics for compilation
scopes, and handles NgModules declared in the current compilation unit.
DtsModuleScopeResolver implements simpler logic for export scopes and
handles NgModules declared in .d.ts files.

This is done in preparation for the addition of re-export logic to solve
StrictDeps issues.

PR Close #28852
This commit is contained in:
Alex Rickabaugh
2019-02-19 12:05:03 -08:00
committed by Ben Lesh
parent fafabc0b92
commit 15c065f9a0
28 changed files with 1105 additions and 830 deletions
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11
packages/compiler-cli/src/ngtsc/annotations/test/directive_spec.ts
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@ -8,17 +8,16 @@
import * as ts from 'typescript';
import {ReferenceEmitter} from '../../imports';
import {PartialEvaluator} from '../../partial_evaluator';
import {TypeScriptReflectionHost} from '../../reflection';
import {LocalModuleScopeRegistry, MetadataDtsModuleScopeResolver} from '../../scope';
import {getDeclaration, makeProgram} from '../../testing/in_memory_typescript';
import {DirectiveDecoratorHandler} from '../src/directive';
import {SelectorScopeRegistry} from '../src/selector_scope';
describe('DirectiveDecoratorHandler', () => {
it('should use the `ReflectionHost` to detect class inheritance', () => {
const {program, options, host} = makeProgram([
const {program} = makeProgram([
{
name: 'node_modules/@angular/core/index.d.ts',
contents: 'export const Directive: any;',
@ -40,9 +39,9 @@ describe('DirectiveDecoratorHandler', () => {
const checker = program.getTypeChecker();
const reflectionHost = new TestReflectionHost(checker);
const evaluator = new PartialEvaluator(reflectionHost, checker);
const handler = new DirectiveDecoratorHandler(
reflectionHost, evaluator,
new SelectorScopeRegistry(checker, reflectionHost, new ReferenceEmitter([])), false);
const scopeRegistry =
new LocalModuleScopeRegistry(new MetadataDtsModuleScopeResolver(checker, reflectionHost));
const handler = new DirectiveDecoratorHandler(reflectionHost, evaluator, scopeRegistry, false);
const analyzeDirective = (dirName: string) => {
const DirNode = getDeclaration(program, 'entry.ts', dirName, ts.isClassDeclaration);