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refactor(ivy): move metadata registration to its own package (#29698)

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Previously, metadata registration (the recording of collected metadata
during analysis of directives, pipes, and NgModules) was only used to
produce the `LocalModuleScope`, and thus was handled by the
`LocalModuleScopeRegistry`.

However, the template type-checker also needs information about registered
directives, outside of the NgModule scope determinations. Rather than
reuse the scope registry for an unintended purpose, this commit introduces
new abstractions for metadata registration and lookups in a separate
'metadata' package, which the scope registry implements.

This paves the way for a future commit to make use of this metadata for the
template type-checking system.

Testing strategy: this commit is a refactoring which introduces no new
functionality, so existing tests are sufficient.

PR Close #29698
This commit is contained in:
Alex Rickabaugh
2019-03-26 14:02:16 -07:00
committed by Ben Lesh
parent 410151b07f
commit 9277afce61
27 changed files with 532 additions and 290 deletions
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25
packages/compiler-cli/src/ngtsc/program.ts
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@ -19,6 +19,7 @@ import {ErrorCode, ngErrorCode} from './diagnostics';
import {FlatIndexGenerator, ReferenceGraph, checkForPrivateExports, findFlatIndexEntryPoint} from './entry_point';
import {AbsoluteModuleStrategy, AliasGenerator, AliasStrategy, DefaultImportTracker, FileToModuleHost, FileToModuleStrategy, ImportRewriter, LocalIdentifierStrategy, LogicalProjectStrategy, ModuleResolver, NoopImportRewriter, R3SymbolsImportRewriter, Reference, ReferenceEmitter} from './imports';
import {IncrementalState} from './incremental';
import {CompoundMetadataRegistry, DtsMetadataReader, LocalMetadataRegistry} from './metadata';
import {PartialEvaluator} from './partial_evaluator';
import {AbsoluteFsPath, LogicalFileSystem} from './path';
import {NOOP_PERF_RECORDER, PerfRecorder, PerfTracker} from './perf';
@ -413,14 +414,18 @@ export class NgtscProgram implements api.Program {
}
const evaluator = new PartialEvaluator(this.reflector, checker);
const depScopeReader =
new MetadataDtsModuleScopeResolver(checker, this.reflector, aliasGenerator);
const scopeRegistry =
new LocalModuleScopeRegistry(depScopeReader, this.refEmitter, aliasGenerator);
const dtsReader = new DtsMetadataReader(checker, this.reflector);
const localMetaRegistry = new LocalMetadataRegistry();
const depScopeReader = new MetadataDtsModuleScopeResolver(dtsReader, aliasGenerator);
const scopeRegistry = new LocalModuleScopeRegistry(
localMetaRegistry, depScopeReader, this.refEmitter, aliasGenerator);
const metaRegistry = new CompoundMetadataRegistry([localMetaRegistry, scopeRegistry]);
// If a flat module entrypoint was specified, then track references via a `ReferenceGraph` in
// order to produce proper diagnostics for incorrectly exported directives/pipes/etc. If there
// If a flat module entrypoint was specified, then track references via a `ReferenceGraph`
// in
// order to produce proper diagnostics for incorrectly exported directives/pipes/etc. If
// there
// is no flat module entrypoint then don't pay the cost of tracking references.
let referencesRegistry: ReferencesRegistry;
if (this.entryPoint !== null) {
@ -436,20 +441,20 @@ export class NgtscProgram implements api.Program {
const handlers = [
new BaseDefDecoratorHandler(this.reflector, evaluator, this.isCore),
new ComponentDecoratorHandler(
this.reflector, evaluator, scopeRegistry, this.isCore, this.resourceManager,
this.reflector, evaluator, metaRegistry, scopeRegistry, this.isCore, this.resourceManager,
this.rootDirs, this.options.preserveWhitespaces || false,
this.options.i18nUseExternalIds !== false, this.moduleResolver, this.cycleAnalyzer,
this.refEmitter, this.defaultImportTracker),
new DirectiveDecoratorHandler(
this.reflector, evaluator, scopeRegistry, this.defaultImportTracker, this.isCore),
this.reflector, evaluator, metaRegistry, this.defaultImportTracker, this.isCore),
new InjectableDecoratorHandler(
this.reflector, this.defaultImportTracker, this.isCore,
this.options.strictInjectionParameters || false),
new NgModuleDecoratorHandler(
this.reflector, evaluator, scopeRegistry, referencesRegistry, this.isCore,
this.reflector, evaluator, metaRegistry, scopeRegistry, referencesRegistry, this.isCore,
this.routeAnalyzer, this.refEmitter, this.defaultImportTracker),
new PipeDecoratorHandler(
this.reflector, evaluator, scopeRegistry, this.defaultImportTracker, this.isCore),
this.reflector, evaluator, metaRegistry, this.defaultImportTracker, this.isCore),
];
return new IvyCompilation(