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perf(ivy): use module resolution cache (#34332) 

During TypeScript module resolution, a lot of filesystem requests are
done. This is quite an expensive operation, so a module resolution cache
can be used to speed up the process significantly.

This commit lets the Ivy compiler perform all module resolution with a
module resolution cache. Note that the module resolution behavior can be
changed with a custom compiler host, in which case that custom host
implementation is responsible for caching. In the case of the Angular
CLI a custom compiler host with proper module resolution caching is
already in place, so the CLI already has this optimization.

PR Close #34332
This commit is contained in:
JoostK 2019-12-07 22:38:36 +01:00 committed by Kara Erickson
parent 2f5ddd9c96
commit 8c2cbdd385
13 changed files with 56 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
packages/compiler-cli/ngcc/src/analysis/decoration_analyzer.ts
View File

@ -59,6 +59,8 @@ export class DecorationAnalyzer {
* Map of NgModule declarations to the re-exports for that NgModule.
*/
private reexportMap = new Map<ts.Declaration, Map<string, [string, string]>>();
moduleResolver =
new ModuleResolver(this.program, this.options, this.host, /* moduleResolutionCache */ null);
resourceManager = new NgccResourceLoader(this.fs);
metaRegistry = new LocalMetadataRegistry();
dtsMetaReader = new DtsMetadataReader(this.typeChecker, this.reflectionHost);
@ -66,7 +68,7 @@ export class DecorationAnalyzer {
refEmitter = new ReferenceEmitter([
new LocalIdentifierStrategy(),
new AbsoluteModuleStrategy(
this.program, this.typeChecker, this.options, this.host, this.reflectionHost),
this.program, this.typeChecker, this.moduleResolver, this.reflectionHost),
// TODO(alxhub): there's no reason why ngcc needs the "logical file system" logic here, as ngcc
// projects only ever have one rootDir. Instead, ngcc should just switch its emitted import
// based on whether a bestGuessOwningModule is present in the Reference.
@ -81,7 +83,6 @@ export class DecorationAnalyzer {
fullRegistry = new CompoundMetadataRegistry([this.metaRegistry, this.scopeRegistry]);
evaluator =
new PartialEvaluator(this.reflectionHost, this.typeChecker, /* dependencyTracker */ null);
moduleResolver = new ModuleResolver(this.program, this.options, this.host);
importGraph = new ImportGraph(this.moduleResolver);
cycleAnalyzer = new CycleAnalyzer(this.importGraph);
handlers: DecoratorHandler<unknown, unknown, unknown>[] = [

2
packages/compiler-cli/src/ngtsc/annotations/src/component.ts
View File

@ -757,7 +757,7 @@ export class ComponentDecoratorHandler implements
}
// Figure out what file is being imported.
return this.moduleResolver.resolveModuleName(expr.value.moduleName !, origin);
return this.moduleResolver.resolveModule(expr.value.moduleName !, origin.fileName);
}
private _isCyclicImport(expr: Expression, origin: ts.SourceFile): boolean {

3
packages/compiler-cli/src/ngtsc/annotations/test/component_spec.ts
View File

@ -48,7 +48,8 @@ runInEachFileSystem(() => {
const checker = program.getTypeChecker();
const reflectionHost = new TypeScriptReflectionHost(checker);
const evaluator = new PartialEvaluator(reflectionHost, checker, /* dependencyTracker */ null);
const moduleResolver = new ModuleResolver(program, options, host);
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
const importGraph = new ImportGraph(moduleResolver);
const cycleAnalyzer = new CycleAnalyzer(importGraph);
const metaRegistry = new LocalMetadataRegistry();

2
packages/compiler-cli/src/ngtsc/cycles/src/imports.ts
View File

@ -68,7 +68,7 @@ export class ImportGraph {
stmt.moduleSpecifier !== undefined && ts.isStringLiteral(stmt.moduleSpecifier)) {
// Resolve the module to a file, and check whether that file is in the ts.Program.
const moduleName = stmt.moduleSpecifier.text;
const moduleFile = this.resolver.resolveModuleName(moduleName, sf);
const moduleFile = this.resolver.resolveModule(moduleName, sf.fileName);
if (moduleFile !== null && isLocalFile(moduleFile)) {
// Record this local import.
imports.add(moduleFile);

4
packages/compiler-cli/src/ngtsc/cycles/test/analyzer_spec.ts
View File

@ -62,9 +62,11 @@ runInEachFileSystem(() => {
function makeAnalyzer(graph: string): {program: ts.Program, analyzer: CycleAnalyzer} {
const {program, options, host} = makeProgramFromGraph(getFileSystem(), graph);
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
return {
program,
analyzer: new CycleAnalyzer(new ImportGraph(new ModuleResolver(program, options, host))),
analyzer: new CycleAnalyzer(new ImportGraph(moduleResolver)),
};
}
});

4
packages/compiler-cli/src/ngtsc/cycles/test/imports_spec.ts
View File

@ -55,9 +55,11 @@ runInEachFileSystem(() => {
function makeImportGraph(graph: string): {program: ts.Program, graph: ImportGraph} {
const {program, options, host} = makeProgramFromGraph(getFileSystem(), graph);
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
return {
program,
graph: new ImportGraph(new ModuleResolver(program, options, host)),
graph: new ImportGraph(moduleResolver),
};
}

16
packages/compiler-cli/src/ngtsc/imports/src/emitter.ts
View File

@ -8,13 +8,14 @@
import {Expression, ExternalExpr, ExternalReference, WrappedNodeExpr} from '@angular/compiler';
import * as ts from 'typescript';
import {LogicalFileSystem, LogicalProjectPath, PathSegment, absoluteFrom, absoluteFromSourceFile, basename, dirname, relative, resolve} from '../../file_system';
import {LogicalFileSystem, LogicalProjectPath, PathSegment, absoluteFromSourceFile, dirname, relative} from '../../file_system';
import {stripExtension} from '../../file_system/src/util';
import {ReflectionHost} from '../../reflection';
import {getSourceFile, getSourceFileOrNull, isDeclaration, nodeNameForError, resolveModuleName} from '../../util/src/typescript';
import {getSourceFile, isDeclaration, nodeNameForError} from '../../util/src/typescript';
import {findExportedNameOfNode} from './find_export';
import {ImportMode, Reference} from './references';
import {ModuleResolver} from './resolver';
@ -118,8 +119,7 @@ export class AbsoluteModuleStrategy implements ReferenceEmitStrategy {
constructor(
protected program: ts.Program, protected checker: ts.TypeChecker,
protected options: ts.CompilerOptions, protected host: ts.CompilerHost,
private reflectionHost: ReflectionHost) {}
protected moduleResolver: ModuleResolver, private reflectionHost: ReflectionHost) {}
emit(ref: Reference<ts.Node>, context: ts.SourceFile, importMode: ImportMode): Expression|null {
if (ref.bestGuessOwningModule === null) {
@ -165,13 +165,7 @@ export class AbsoluteModuleStrategy implements ReferenceEmitStrategy {
protected enumerateExportsOfModule(specifier: string, fromFile: string):
Map<ts.Declaration, string>|null {
// First, resolve the module specifier to its entry point, and get the ts.Symbol for it.
const resolvedModule = resolveModuleName(specifier, fromFile, this.options, this.host);
if (resolvedModule === undefined) {
return null;
}
const entryPointFile =
getSourceFileOrNull(this.program, absoluteFrom(resolvedModule.resolvedFileName));
const entryPointFile = this.moduleResolver.resolveModule(specifier, fromFile);
if (entryPointFile === null) {
return null;
}

15
packages/compiler-cli/src/ngtsc/imports/src/resolver.ts
View File

@ -8,12 +8,6 @@
import * as ts from 'typescript';
import {absoluteFrom} from '../../file_system';
import {getSourceFileOrNull, resolveModuleName} from '../../util/src/typescript';
import {Reference} from './references';
export interface ReferenceResolver {
resolve(decl: ts.Declaration, importFromHint: string|null, fromFile: string):
Reference<ts.Declaration>;
}
/**
* Used by `RouterEntryPointManager` and `NgModuleRouteAnalyzer` (which is in turn is used by
@ -24,11 +18,12 @@ export interface ReferenceResolver {
export class ModuleResolver {
constructor(
private program: ts.Program, private compilerOptions: ts.CompilerOptions,
private host: ts.CompilerHost) {}
private host: ts.CompilerHost, private moduleResolutionCache: ts.ModuleResolutionCache|null) {
}
resolveModuleName(module: string, containingFile: ts.SourceFile): ts.SourceFile|null {
const resolved =
resolveModuleName(module, containingFile.fileName, this.compilerOptions, this.host);
resolveModule(moduleName: string, containingFile: string): ts.SourceFile|null {
const resolved = resolveModuleName(
moduleName, containingFile, this.compilerOptions, this.host, this.moduleResolutionCache);
if (resolved === undefined) {
return null;
}

11
packages/compiler-cli/src/ngtsc/program.ts
View File

@ -177,7 +177,10 @@ export class NgtscProgram implements api.Program {
this.reuseTsProgram = this.tsProgram;
this.entryPoint = entryPoint !== null ? getSourceFileOrNull(this.tsProgram, entryPoint) : null;
this.moduleResolver = new ModuleResolver(this.tsProgram, options, this.host);
const moduleResolutionCache = ts.createModuleResolutionCache(
this.host.getCurrentDirectory(), fileName => this.host.getCanonicalFileName(fileName));
this.moduleResolver =
new ModuleResolver(this.tsProgram, options, this.host, moduleResolutionCache);
this.cycleAnalyzer = new CycleAnalyzer(new ImportGraph(this.moduleResolver));
this.defaultImportTracker = new DefaultImportTracker();
if (oldProgram === undefined) {
@ -287,7 +290,8 @@ export class NgtscProgram implements api.Program {
// of the root files.
const containingFile = this.tsProgram.getRootFileNames()[0];
const [entryPath, moduleName] = entryRoute.split('#');
const resolvedModule = resolveModuleName(entryPath, containingFile, this.options, this.host);
const resolvedModule =
resolveModuleName(entryPath, containingFile, this.options, this.host, null);
if (resolvedModule) {
entryRoute = entryPointKeyFor(resolvedModule.resolvedFileName, moduleName);
@ -587,8 +591,7 @@ export class NgtscProgram implements api.Program {
// First, try to use local identifiers if available.
new LocalIdentifierStrategy(),
// Next, attempt to use an absolute import.
new AbsoluteModuleStrategy(
this.tsProgram, checker, this.options, this.host, this.reflector),
new AbsoluteModuleStrategy(this.tsProgram, checker, this.moduleResolver, this.reflector),
// Finally, check if the reference is being written into a file within the project's .ts
// sources, and use a relative import if so. If this fails, ReferenceEmitter will throw
// an error.

2
packages/compiler-cli/src/ngtsc/routing/src/route.ts
View File

@ -39,7 +39,7 @@ export class RouterEntryPointManager {
if (moduleName === undefined) {
return null;
}
const resolvedSf = this.moduleResolver.resolveModuleName(relativeFile, context);
const resolvedSf = this.moduleResolver.resolveModule(relativeFile, context.fileName);
if (resolvedSf === null) {
return null;
}

16
packages/compiler-cli/src/ngtsc/typecheck/test/test_utils.ts
View File

@ -11,7 +11,7 @@ import * as ts from 'typescript';
import {AbsoluteFsPath, LogicalFileSystem, absoluteFrom} from '../../file_system';
import {TestFile} from '../../file_system/testing';
import {AbsoluteModuleStrategy, LocalIdentifierStrategy, LogicalProjectStrategy, Reference, ReferenceEmitter} from '../../imports';
import {AbsoluteModuleStrategy, LocalIdentifierStrategy, LogicalProjectStrategy, ModuleResolver, Reference, ReferenceEmitter} from '../../imports';
import {ClassDeclaration, TypeScriptReflectionHost, isNamedClassDeclaration} from '../../reflection';
import {makeProgram} from '../../testing';
import {getRootDirs} from '../../util/src/typescript';
@ -29,7 +29,7 @@ export function typescriptLibDts(): TestFile {
type Partial<T> = { [P in keyof T]?: T[P]; };
type Pick<T, K extends keyof T> = { [P in K]: T[P]; };
type NonNullable<T> = T extends null | undefined ? never : T;
// The following native type declarations are required for proper type inference
declare interface Function {
call(...args: any[]): any;
@ -40,7 +40,7 @@ export function typescriptLibDts(): TestFile {
declare interface String {
length: number;
}
declare interface Event {
preventDefault(): void;
}
@ -48,7 +48,7 @@ export function typescriptLibDts(): TestFile {
readonly x: number;
readonly y: number;
}
declare interface HTMLElementEventMap {
"click": MouseEvent;
}
@ -88,7 +88,7 @@ export function angularCoreDts(): TestFile {
abstract readonly elementRef: unknown;
abstract createEmbeddedView(context: C): unknown;
}
export declare class EventEmitter<T> {
subscribe(generatorOrNext?: any, error?: any, complete?: any): unknown;
}
@ -131,7 +131,7 @@ export function ngForDts(): TestFile {
export interface TrackByFunction<T> {
(index: number, item: T): any;
}
export declare class NgForOfContext<T> {
$implicit: T;
index: number;
@ -249,10 +249,12 @@ export function typecheck(
const checker = program.getTypeChecker();
const logicalFs = new LogicalFileSystem(getRootDirs(host, options));
const reflectionHost = new TypeScriptReflectionHost(checker);
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
const emitter = new ReferenceEmitter([
new LocalIdentifierStrategy(),
new AbsoluteModuleStrategy(
program, checker, options, host, new TypeScriptReflectionHost(checker)),
program, checker, moduleResolver, new TypeScriptReflectionHost(checker)),
new LogicalProjectStrategy(reflectionHost, logicalFs),
]);
const ctx = new TypeCheckContext({...ALL_ENABLED_CONFIG, ...config}, emitter, typeCheckFilePath);

14
packages/compiler-cli/src/ngtsc/typecheck/test/type_constructor_spec.ts
View File

@ -8,7 +8,7 @@
import * as ts from 'typescript';
import {LogicalFileSystem, absoluteFrom, getSourceFileOrError} from '../../file_system';
import {TestFile, runInEachFileSystem} from '../../file_system/testing';
import {AbsoluteModuleStrategy, LocalIdentifierStrategy, LogicalProjectStrategy, Reference, ReferenceEmitter} from '../../imports';
import {AbsoluteModuleStrategy, LocalIdentifierStrategy, LogicalProjectStrategy, ModuleResolver, Reference, ReferenceEmitter} from '../../imports';
import {TypeScriptReflectionHost, isNamedClassDeclaration} from '../../reflection';
import {getDeclaration, makeProgram} from '../../testing';
import {getRootDirs} from '../../util/src/typescript';
@ -64,9 +64,11 @@ TestClass.ngTypeCtor({value: 'test'});
const checker = program.getTypeChecker();
const reflectionHost = new TypeScriptReflectionHost(checker);
const logicalFs = new LogicalFileSystem(getRootDirs(host, options));
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
const emitter = new ReferenceEmitter([
new LocalIdentifierStrategy(),
new AbsoluteModuleStrategy(program, checker, options, host, reflectionHost),
new AbsoluteModuleStrategy(program, checker, moduleResolver, reflectionHost),
new LogicalProjectStrategy(reflectionHost, logicalFs),
]);
const ctx = new TypeCheckContext(ALL_ENABLED_CONFIG, emitter, _('/_typecheck_.ts'));
@ -97,9 +99,11 @@ TestClass.ngTypeCtor({value: 'test'});
const checker = program.getTypeChecker();
const reflectionHost = new TypeScriptReflectionHost(checker);
const logicalFs = new LogicalFileSystem(getRootDirs(host, options));
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
const emitter = new ReferenceEmitter([
new LocalIdentifierStrategy(),
new AbsoluteModuleStrategy(program, checker, options, host, reflectionHost),
new AbsoluteModuleStrategy(program, checker, moduleResolver, reflectionHost),
new LogicalProjectStrategy(reflectionHost, logicalFs),
]);
const ctx = new TypeCheckContext(ALL_ENABLED_CONFIG, emitter, _('/_typecheck_.ts'));
@ -136,9 +140,11 @@ TestClass.ngTypeCtor({value: 'test'});
const checker = program.getTypeChecker();
const reflectionHost = new TypeScriptReflectionHost(checker);
const logicalFs = new LogicalFileSystem(getRootDirs(host, options));
const moduleResolver =
new ModuleResolver(program, options, host, /* moduleResolutionCache */ null);
const emitter = new ReferenceEmitter([
new LocalIdentifierStrategy(),
new AbsoluteModuleStrategy(program, checker, options, host, reflectionHost),
new AbsoluteModuleStrategy(program, checker, moduleResolver, reflectionHost),
new LogicalProjectStrategy(reflectionHost, logicalFs),
]);
const ctx = new TypeCheckContext(ALL_ENABLED_CONFIG, emitter, _('/_typecheck_.ts'));

8
packages/compiler-cli/src/ngtsc/util/src/typescript.ts
View File

@ -111,14 +111,18 @@ export function nodeDebugInfo(node: ts.Node): string {
*/
export function resolveModuleName(
moduleName: string, containingFile: string, compilerOptions: ts.CompilerOptions,
compilerHost: ts.CompilerHost): ts.ResolvedModule|undefined {
compilerHost: ts.CompilerHost,
moduleResolutionCache: ts.ModuleResolutionCache | null): ts.ResolvedModule|undefined {
if (compilerHost.resolveModuleNames) {
// FIXME: Additional parameters are required in TS3.6, but ignored in 3.5.
// Remove the any cast once google3 is fully on TS3.6.
return (compilerHost as any)
.resolveModuleNames([moduleName], containingFile, undefined, undefined, compilerOptions)[0];
} else {
return ts.resolveModuleName(moduleName, containingFile, compilerOptions, compilerHost)
return ts
.resolveModuleName(
moduleName, containingFile, compilerOptions, compilerHost,
moduleResolutionCache !== null ? moduleResolutionCache : undefined)
.resolvedModule;
}
}