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fix(ivy): allow abstract directives to have an invalid constructor (#32987) 

For abstract directives, i.e. directives without a selector, it may
happen that their constructor is called explicitly from a subclass,
hence its parameters are not required to be valid for Angular's DI
purposes. Prior to this commit however, having an abstract directive
with a constructor that has parameters that are not eligible for
Angular's DI would produce a compilation error.

A similar scenario may occur for `@Injectable`s, where an explicit
`use*` definition allows for the constructor to be irrelevant. For
example, the situation where `useFactory` is specified allows for the
constructor to be called explicitly with any value, so its constructor
parameters are not required to be valid. For `@Injectable`s this is
handled by generating a DI factory function that throws.

This commit implements the same solution for abstract directives, such
that a compilation error is avoided while still producing an error at
runtime if the type is instantiated implicitly by Angular's DI
mechanism.

Fixes #32981

PR Close #32987
This commit is contained in:
JoostK 2019-10-03 21:54:49 +02:00 committed by Andrew Kushnir
parent e4e8dbdee0
commit 8d15bfa6ee
28 changed files with 307 additions and 117 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
packages/compiler-cli/src/ngtsc/annotations/src/component.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {ConstantPool, CssSelector, DEFAULT_INTERPOLATION_CONFIG, DomElementSchemaRegistry, Expression, ExternalExpr, Identifiers, InterpolationConfig, LexerRange, ParseError, ParseSourceFile, ParseTemplateOptions, R3ComponentMetadata, R3TargetBinder, SchemaMetadata, SelectorMatcher, Statement, TmplAstNode, WrappedNodeExpr, compileComponentFromMetadata, makeBindingParser, parseTemplate} from '@angular/compiler';
import {ConstantPool, CssSelector, DEFAULT_INTERPOLATION_CONFIG, DomElementSchemaRegistry, Expression, ExternalExpr, Identifiers, InterpolationConfig, LexerRange, ParseError, ParseSourceFile, ParseTemplateOptions, R3ComponentMetadata, R3FactoryTarget, R3TargetBinder, SchemaMetadata, SelectorMatcher, Statement, TmplAstNode, WrappedNodeExpr, compileComponentFromMetadata, makeBindingParser, parseTemplate} from '@angular/compiler';
import * as ts from 'typescript';
import {CycleAnalyzer} from '../../cycles';
@ -490,7 +490,8 @@ export class ComponentDecoratorHandler implements
CompileResult[] {
const meta = analysis.meta;
const res = compileComponentFromMetadata(meta, pool, makeBindingParser());
const factoryRes = compileNgFactoryDefField({...meta, injectFn: Identifiers.directiveInject});
const factoryRes = compileNgFactoryDefField(
{...meta, injectFn: Identifiers.directiveInject, target: R3FactoryTarget.Component});
if (analysis.metadataStmt !== null) {
factoryRes.statements.push(analysis.metadataStmt);
}

21
packages/compiler-cli/src/ngtsc/annotations/src/directive.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {ConstantPool, EMPTY_SOURCE_SPAN, Expression, Identifiers, ParseError, ParsedHostBindings, R3DirectiveMetadata, R3QueryMetadata, Statement, WrappedNodeExpr, compileDirectiveFromMetadata, makeBindingParser, parseHostBindings, verifyHostBindings} from '@angular/compiler';
import {ConstantPool, EMPTY_SOURCE_SPAN, Expression, Identifiers, ParseError, ParsedHostBindings, R3DependencyMetadata, R3DirectiveMetadata, R3FactoryTarget, R3QueryMetadata, Statement, WrappedNodeExpr, compileDirectiveFromMetadata, makeBindingParser, parseHostBindings, verifyHostBindings} from '@angular/compiler';
import * as ts from 'typescript';
import {ErrorCode, FatalDiagnosticError} from '../../diagnostics';
@ -19,7 +19,7 @@ import {AnalysisOutput, CompileResult, DecoratorHandler, DetectResult, HandlerFl
import {compileNgFactoryDefField} from './factory';
import {generateSetClassMetadataCall} from './metadata';
import {findAngularDecorator, getValidConstructorDependencies, readBaseClass, unwrapExpression, unwrapForwardRef} from './util';
import {findAngularDecorator, getConstructorDependencies, readBaseClass, unwrapConstructorDependencies, unwrapExpression, unwrapForwardRef, validateConstructorDependencies} from './util';
const EMPTY_OBJECT: {[key: string]: string} = {};
@ -89,7 +89,8 @@ export class DirectiveDecoratorHandler implements
CompileResult[] {
const meta = analysis.meta;
const res = compileDirectiveFromMetadata(meta, pool, makeBindingParser());
const factoryRes = compileNgFactoryDefField({...meta, injectFn: Identifiers.directiveInject});
const factoryRes = compileNgFactoryDefField(
{...meta, injectFn: Identifiers.directiveInject, target: R3FactoryTarget.Directive});
if (analysis.metadataStmt !== null) {
factoryRes.statements.push(analysis.metadataStmt);
}
@ -228,11 +229,23 @@ export function extractDirectiveMetadata(
exportAs = resolved.split(',').map(part => part.trim());
}
const rawCtorDeps = getConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore);
let ctorDeps: R3DependencyMetadata[]|'invalid'|null;
// Non-abstract directives (those with a selector) require valid constructor dependencies, whereas
// abstract directives are allowed to have invalid dependencies, given that a subclass may call
// the constructor explicitly.
if (selector !== null) {
ctorDeps = validateConstructorDependencies(clazz, rawCtorDeps);
} else {
ctorDeps = unwrapConstructorDependencies(rawCtorDeps);
}
// Detect if the component inherits from another class
const usesInheritance = reflector.hasBaseClass(clazz);
const metadata: R3DirectiveMetadata = {
name: clazz.name.text,
deps: getValidConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore), host,
deps: ctorDeps, host,
lifecycle: {
usesOnChanges,
},

6
packages/compiler-cli/src/ngtsc/annotations/src/factory.ts
View File

@ -6,11 +6,11 @@
* found in the LICENSE file at https://angular.io/license
*/
import {R3FactoryDefMetadata, compileFactoryFromMetadata} from '@angular/compiler';
import {R3FactoryMetadata, compileFactoryFunction} from '@angular/compiler';
import {CompileResult} from '../../transform';
export function compileNgFactoryDefField(metadata: R3FactoryDefMetadata): CompileResult {
const res = compileFactoryFromMetadata(metadata);
export function compileNgFactoryDefField(metadata: R3FactoryMetadata): CompileResult {
const res = compileFactoryFunction(metadata);
return {name: 'ɵfac', initializer: res.factory, statements: res.statements, type: res.type};
}

45
packages/compiler-cli/src/ngtsc/annotations/src/injectable.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {Expression, Identifiers, LiteralExpr, R3DependencyMetadata, R3InjectableMetadata, R3ResolvedDependencyType, Statement, WrappedNodeExpr, compileInjectable as compileIvyInjectable} from '@angular/compiler';
import {Expression, Identifiers, LiteralExpr, R3DependencyMetadata, R3FactoryTarget, R3InjectableMetadata, R3ResolvedDependencyType, Statement, WrappedNodeExpr, compileInjectable as compileIvyInjectable} from '@angular/compiler';
import * as ts from 'typescript';
import {ErrorCode, FatalDiagnosticError} from '../../diagnostics';
@ -16,7 +16,7 @@ import {AnalysisOutput, CompileResult, DecoratorHandler, DetectResult, HandlerPr
import {compileNgFactoryDefField} from './factory';
import {generateSetClassMetadataCall} from './metadata';
import {findAngularDecorator, getConstructorDependencies, getValidConstructorDependencies, isAngularCore, unwrapForwardRef, validateConstructorDependencies} from './util';
import {findAngularDecorator, getConstructorDependencies, getValidConstructorDependencies, isAngularCore, unwrapConstructorDependencies, unwrapForwardRef, validateConstructorDependencies} from './util';
export interface InjectableHandlerData {
meta: R3InjectableMetadata;
@ -83,7 +83,8 @@ export class InjectableDecoratorHandler implements
type: meta.type,
typeArgumentCount: meta.typeArgumentCount,
deps: analysis.ctorDeps,
injectFn: Identifiers.inject
injectFn: Identifiers.inject,
target: R3FactoryTarget.Injectable,
});
if (analysis.metadataStmt !== null) {
factoryRes.statements.push(analysis.metadataStmt);
@ -216,45 +217,25 @@ function extractInjectableCtorDeps(
// Angular's DI.
//
// To deal with this, @Injectable() without an argument is more lenient, and if the
// constructor signature does not work for DI then a provider def (ɵprov) that throws.
// constructor signature does not work for DI then a factory definition (ɵfac) that throws is
// generated.
if (strictCtorDeps) {
ctorDeps = getValidConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore);
} else {
const possibleCtorDeps =
getConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore);
if (possibleCtorDeps !== null) {
if (possibleCtorDeps.deps !== null) {
// This use of @Injectable has valid constructor dependencies.
ctorDeps = possibleCtorDeps.deps;
} else {
// This use of @Injectable is technically invalid. Generate a factory function which
// throws
// an error.
// TODO(alxhub): log warnings for the bad use of @Injectable.
ctorDeps = 'invalid';
}
}
ctorDeps = unwrapConstructorDependencies(
getConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore));
}
return ctorDeps;
} else if (decorator.args.length === 1) {
const rawCtorDeps = getConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore);
// rawCtorDeps will be null if the class has no constructor.
if (rawCtorDeps !== null) {
if (rawCtorDeps.deps !== null) {
// A constructor existed and had valid dependencies.
ctorDeps = rawCtorDeps.deps;
} else {
// A constructor existed but had invalid dependencies.
ctorDeps = 'invalid';
}
}
if (strictCtorDeps && !meta.useValue && !meta.useExisting && !meta.useClass &&
!meta.useFactory) {
if (strictCtorDeps && meta.useValue === undefined && meta.useExisting === undefined &&
meta.useClass === undefined && meta.useFactory === undefined) {
// Since use* was not provided, validate the deps according to strictCtorDeps.
validateConstructorDependencies(clazz, rawCtorDeps);
ctorDeps = validateConstructorDependencies(clazz, rawCtorDeps);
} else {
ctorDeps = unwrapConstructorDependencies(rawCtorDeps);
}
}

4
packages/compiler-cli/src/ngtsc/annotations/src/pipe.ts
View File

@ -6,7 +6,7 @@
* found in the LICENSE file at https://angular.io/license
*/
import {Identifiers, R3PipeMetadata, Statement, WrappedNodeExpr, compilePipeFromMetadata} from '@angular/compiler';
import {Identifiers, R3FactoryTarget, R3PipeMetadata, Statement, WrappedNodeExpr, compilePipeFromMetadata} from '@angular/compiler';
import * as ts from 'typescript';
import {ErrorCode, FatalDiagnosticError} from '../../diagnostics';
@ -114,7 +114,7 @@ export class PipeDecoratorHandler implements DecoratorHandler<PipeHandlerData, D
const factoryRes = compileNgFactoryDefField({
...meta,
injectFn: Identifiers.directiveInject,
isPipe: true,
target: R3FactoryTarget.Pipe,
});
if (analysis.metadataStmt !== null) {
factoryRes.statements.push(analysis.metadataStmt);

26
packages/compiler-cli/src/ngtsc/annotations/src/util.ts
View File

@ -134,6 +134,25 @@ export function valueReferenceToExpression(
}
}
/**
* Convert `ConstructorDeps` into the `R3DependencyMetadata` array for those deps if they're valid,
* or into an `'invalid'` signal if they're not.
*
* This is a companion function to `validateConstructorDependencies` which accepts invalid deps.
*/
export function unwrapConstructorDependencies(deps: ConstructorDeps | null): R3DependencyMetadata[]|
'invalid'|null {
if (deps === null) {
return null;
} else if (deps.deps !== null) {
// These constructor dependencies are valid.
return deps.deps;
} else {
// These deps are invalid.
return 'invalid';
}
}
export function getValidConstructorDependencies(
clazz: ClassDeclaration, reflector: ReflectionHost,
defaultImportRecorder: DefaultImportRecorder, isCore: boolean): R3DependencyMetadata[]|null {
@ -141,6 +160,13 @@ export function getValidConstructorDependencies(
clazz, getConstructorDependencies(clazz, reflector, defaultImportRecorder, isCore));
}
/**
* Validate that `ConstructorDeps` does not have any invalid dependencies and convert them into the
* `R3DependencyMetadata` array if so, or raise a diagnostic if some deps are invalid.
*
* This is a companion function to `unwrapConstructorDependencies` which does not accept invalid
* deps.
*/
export function validateConstructorDependencies(
clazz: ClassDeclaration, deps: ConstructorDeps | null): R3DependencyMetadata[]|null {
if (deps === null) {

3
packages/compiler-cli/src/transformers/api.ts
View File

@ -66,8 +66,7 @@ export interface CompilerOptions extends ts.CompilerOptions {
// be determined. When this value option is not provided or is `false`, constructor
// parameters of classes marked with `@Injectable` whose type cannot be resolved will
// produce a warning. With this option `true`, they produce an error. When this option is
// not provided is treated as if it were `false`. In Angular 6.0, if this option is not
// provided, it will be treated as `true`.
// not provided is treated as if it were `false`.
strictInjectionParameters?: boolean;
// Whether to generate a flat module index of the given name and the corresponding

134
packages/compiler-cli/test/ngtsc/ngtsc_spec.ts
View File

@ -1336,7 +1336,7 @@ runInEachFileSystem(os => {
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable()
@Injectable({providedIn: 'root'})
export class Test {
constructor(private notInjectable: string) {}
}
@ -1364,7 +1364,75 @@ runInEachFileSystem(os => {
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toMatch(/function Test_Factory\(t\) { throw new Error\(/ms);
expect(jsContents)
.toMatch(/function Test_Factory\(t\) { i0\.ɵɵinvalidFactory\(\)/ms);
});
it('should not give a compile-time error if an invalid @Injectable is used with useFactory',
() => {
env.tsconfig({strictInjectionParameters: true});
env.write('test.ts', `
import {Injectable} from '@angular/core';
@Injectable({
providedIn: 'root',
useFactory: () => '42',
})
export class Test {
constructor(private notInjectable: string) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toMatch(/function Test_Factory\(t\) { i0\.ɵɵinvalidFactory\(\)/ms);
});
it('should not give a compile-time error if an invalid @Injectable is used with useExisting',
() => {
env.tsconfig({strictInjectionParameters: true});
env.write('test.ts', `
import {Injectable} from '@angular/core';
export class MyService {}
@Injectable({
providedIn: 'root',
useExisting: MyService,
})
export class Test {
constructor(private notInjectable: string) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toMatch(/function Test_Factory\(t\) { i0\.ɵɵinvalidFactory\(\)/ms);
});
it('should not give a compile-time error if an invalid @Injectable is used with useClass',
() => {
env.tsconfig({strictInjectionParameters: true});
env.write('test.ts', `
import {Injectable} from '@angular/core';
export class MyService {}
@Injectable({
providedIn: 'root',
useClass: MyService,
})
export class Test {
constructor(private notInjectable: string) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toMatch(/function Test_Factory\(t\) { i0\.ɵɵinvalidFactory\(\)/ms);
});
});
@ -1382,7 +1450,8 @@ runInEachFileSystem(os => {
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents).toContain('Test.ɵfac = function Test_Factory(t) { throw new Error(');
expect(jsContents)
.toContain('Test.ɵfac = function Test_Factory(t) { i0.ɵɵinvalidFactory()');
});
it('should compile an @Injectable provided in the root on a class with a non-injectable constructor',
@ -1399,12 +1468,69 @@ runInEachFileSystem(os => {
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain('Test.ɵfac = function Test_Factory(t) { throw new Error(');
.toContain('Test.ɵfac = function Test_Factory(t) { i0.ɵɵinvalidFactory()');
});
});
});
describe('compiling invalid @Directives', () => {
describe('directives with a selector', () => {
it('should give a compile-time error if an invalid constructor is used', () => {
env.tsconfig({strictInjectionParameters: true});
env.write('test.ts', `
import {Directive} from '@angular/core';
@Directive({selector: 'app-test'})
export class Test {
constructor(private notInjectable: string) {}
}
`);
const errors = env.driveDiagnostics();
expect(errors.length).toBe(1);
expect(errors[0].messageText).toContain('No suitable injection token for parameter');
});
});
describe('abstract directives', () => {
it('should generate a factory function that throws', () => {
env.tsconfig({strictInjectionParameters: false});
env.write('test.ts', `
import {Directive} from '@angular/core';
@Directive()
export class Test {
constructor(private notInjectable: string) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain('Test.ɵfac = function Test_Factory(t) { i0.ɵɵinvalidFactory()');
});
});
it('should generate a factory function that throws, even under strictInjectionParameters',
() => {
env.tsconfig({strictInjectionParameters: true});
env.write('test.ts', `
import {Directive} from '@angular/core';
@Directive()
export class Test {
constructor(private notInjectable: string) {}
}
`);
env.driveMain();
const jsContents = env.getContents('test.js');
expect(jsContents)
.toContain('Test.ɵfac = function Test_Factory(t) { i0.ɵɵinvalidFactory()');
});
});
describe('templateUrl and styleUrls processing', () => {
const testsForResource = (resource: string) => [
// [component location, resource location, resource reference]

2
packages/compiler/src/compiler.ts
View File

@ -96,7 +96,7 @@ export {BoundAttribute as TmplAstBoundAttribute, BoundEvent as TmplAstBoundEvent
export * from './render3/view/t2_api';
export * from './render3/view/t2_binder';
export {Identifiers as R3Identifiers} from './render3/r3_identifiers';
export {R3DependencyMetadata, R3FactoryDefMetadata, R3ResolvedDependencyType, compileFactoryFromMetadata, R3FactoryMetadata} from './render3/r3_factory';
export {R3DependencyMetadata, R3ResolvedDependencyType, compileFactoryFunction, R3FactoryMetadata, R3FactoryTarget} from './render3/r3_factory';
export {compileInjector, compileNgModule, R3InjectorMetadata, R3NgModuleMetadata} from './render3/r3_module_compiler';
export {compilePipeFromMetadata, R3PipeMetadata} from './render3/r3_pipe_compiler';
export {makeBindingParser, parseTemplate, ParseTemplateOptions} from './render3/view/template';

11
packages/compiler/src/compiler_facade_interface.ts
View File

@ -45,6 +45,7 @@ export interface CompilerFacade {
createParseSourceSpan(kind: string, typeName: string, sourceUrl: string): ParseSourceSpan;
R3ResolvedDependencyType: typeof R3ResolvedDependencyType;
R3FactoryTarget: typeof R3FactoryTarget;
ResourceLoader: {new (): ResourceLoader};
}
@ -70,6 +71,14 @@ export enum R3ResolvedDependencyType {
ChangeDetectorRef = 2,
}
export enum R3FactoryTarget {
Directive = 0,
Component = 1,
Injectable = 2,
Pipe = 3,
NgModule = 4,
}
export interface R3DependencyMetadataFacade {
token: any;
resolved: R3ResolvedDependencyType;
@ -167,7 +176,7 @@ export interface R3FactoryDefMetadataFacade {
typeArgumentCount: number;
deps: R3DependencyMetadataFacade[]|null;
injectFn: 'directiveInject'|'inject';
isPipe: boolean;
target: R3FactoryTarget;
}
export type ViewEncapsulation = number;

3
packages/compiler/src/injectable_compiler_2.ts
View File

@ -8,7 +8,7 @@
import {Identifiers} from './identifiers';
import * as o from './output/output_ast';
import {R3DependencyMetadata, R3FactoryDelegateType, compileFactoryFunction} from './render3/r3_factory';
import {R3DependencyMetadata, R3FactoryDelegateType, R3FactoryTarget, compileFactoryFunction} from './render3/r3_factory';
import {mapToMapExpression, typeWithParameters} from './render3/util';
export interface InjectableDef {
@ -38,6 +38,7 @@ export function compileInjectable(meta: R3InjectableMetadata): InjectableDef {
typeArgumentCount: meta.typeArgumentCount,
deps: [],
injectFn: Identifiers.inject,
target: R3FactoryTarget.Injectable,
};
if (meta.useClass !== undefined) {

7
packages/compiler/src/jit_compiler_facade.ts
View File

@ -16,7 +16,7 @@ import {DEFAULT_INTERPOLATION_CONFIG, InterpolationConfig} from './ml_parser/int
import {DeclareVarStmt, Expression, LiteralExpr, Statement, StmtModifier, WrappedNodeExpr} from './output/output_ast';
import {JitEvaluator} from './output/output_jit';
import {ParseError, ParseSourceSpan, r3JitTypeSourceSpan} from './parse_util';
import {R3DependencyMetadata, R3ResolvedDependencyType, compileFactoryFromMetadata} from './render3/r3_factory';
import {R3DependencyMetadata, R3FactoryTarget, R3ResolvedDependencyType, compileFactoryFunction} from './render3/r3_factory';
import {R3JitReflector} from './render3/r3_jit';
import {R3InjectorMetadata, R3NgModuleMetadata, compileInjector, compileNgModule} from './render3/r3_module_compiler';
import {compilePipeFromMetadata} from './render3/r3_pipe_compiler';
@ -29,6 +29,7 @@ import {DomElementSchemaRegistry} from './schema/dom_element_schema_registry';
export class CompilerFacadeImpl implements CompilerFacade {
R3ResolvedDependencyType = R3ResolvedDependencyType as any;
R3FactoryTarget = R3FactoryTarget as any;
ResourceLoader = ResourceLoader;
private elementSchemaRegistry = new DomElementSchemaRegistry();
@ -155,14 +156,14 @@ export class CompilerFacadeImpl implements CompilerFacade {
compileFactory(
angularCoreEnv: CoreEnvironment, sourceMapUrl: string, meta: R3FactoryDefMetadataFacade) {
const factoryRes = compileFactoryFromMetadata({
const factoryRes = compileFactoryFunction({
name: meta.name,
type: new WrappedNodeExpr(meta.type),
typeArgumentCount: meta.typeArgumentCount,
deps: convertR3DependencyMetadataArray(meta.deps),
injectFn: meta.injectFn === 'directiveInject' ? Identifiers.directiveInject :
Identifiers.inject,
isPipe: meta.isPipe
target: meta.target,
});
return this.jitExpression(
factoryRes.factory, angularCoreEnv, sourceMapUrl, factoryRes.statements);

56
packages/compiler/src/render3/r3_factory.ts
View File

@ -56,6 +56,11 @@ export interface R3ConstructorFactoryMetadata {
* function could be different, and other options control how it will be invoked.
*/
injectFn: o.ExternalReference;
/**
* Type of the target being created by the factory.
*/
target: R3FactoryTarget;
}
export enum R3FactoryDelegateType {
@ -82,13 +87,12 @@ export interface R3ExpressionFactoryMetadata extends R3ConstructorFactoryMetadat
export type R3FactoryMetadata = R3ConstructorFactoryMetadata | R3DelegatedFactoryMetadata |
R3DelegatedFnOrClassMetadata | R3ExpressionFactoryMetadata;
export interface R3FactoryDefMetadata {
name: string;
type: o.Expression;
typeArgumentCount: number;
deps: R3DependencyMetadata[]|'invalid'|null;
injectFn: o.ExternalReference;
isPipe?: boolean;
export enum R3FactoryTarget {
Directive = 0,
Component = 1,
Injectable = 2,
Pipe = 3,
NgModule = 4,
}
/**
@ -163,7 +167,7 @@ export interface R3FactoryFn {
/**
* Construct a factory function expression for the given `R3FactoryMetadata`.
*/
export function compileFactoryFunction(meta: R3FactoryMetadata, isPipe = false): R3FactoryFn {
export function compileFactoryFunction(meta: R3FactoryMetadata): R3FactoryFn {
const t = o.variable('t');
const statements: o.Statement[] = [];
@ -179,8 +183,9 @@ export function compileFactoryFunction(meta: R3FactoryMetadata, isPipe = false):
if (meta.deps !== null) {
// There is a constructor (either explicitly or implicitly defined).
if (meta.deps !== 'invalid') {
ctorExpr =
new o.InstantiateExpr(typeForCtor, injectDependencies(meta.deps, meta.injectFn, isPipe));
ctorExpr = new o.InstantiateExpr(
typeForCtor,
injectDependencies(meta.deps, meta.injectFn, meta.target === R3FactoryTarget.Pipe));
}
} else {
const baseFactory = o.variable(`ɵ${meta.name}_BaseFactory`);
@ -206,7 +211,7 @@ export function compileFactoryFunction(meta: R3FactoryMetadata, isPipe = false):
if (ctorExprFinal !== null) {
ctorStmt = r.set(ctorExprFinal).toStmt();
} else {
ctorStmt = makeErrorStmt(meta.name);
ctorStmt = o.importExpr(R3.invalidFactory).callFn([]).toStmt();
}
body.push(o.ifStmt(t, [ctorStmt], [r.set(nonCtorExpr).toStmt()]));
return r;
@ -228,8 +233,9 @@ export function compileFactoryFunction(meta: R3FactoryMetadata, isPipe = false):
} else if (isDelegatedMetadata(meta)) {
// This type is created with a delegated factory. If a type parameter is not specified, call
// the factory instead.
const delegateArgs = injectDependencies(meta.delegateDeps, meta.injectFn, isPipe);
// Either call `new delegate(...)` or `delegate(...)` depending on meta.useNewForDelegate.
const delegateArgs =
injectDependencies(meta.delegateDeps, meta.injectFn, meta.target === R3FactoryTarget.Pipe);
// Either call `new delegate(...)` or `delegate(...)` depending on meta.delegateType.
const factoryExpr = new (
meta.delegateType === R3FactoryDelegateType.Class ?
o.InstantiateExpr :
@ -245,7 +251,7 @@ export function compileFactoryFunction(meta: R3FactoryMetadata, isPipe = false):
if (retExpr !== null) {
body.push(new o.ReturnStatement(retExpr));
} else {
body.push(makeErrorStmt(meta.name));
body.push(o.importExpr(R3.invalidFactory).callFn([]).toStmt());
}
return {
@ -258,21 +264,6 @@ export function compileFactoryFunction(meta: R3FactoryMetadata, isPipe = false):
};
}
/**
* Constructs the factory def (`ɵfac`) from directive/component/pipe metadata.
*/
export function compileFactoryFromMetadata(meta: R3FactoryDefMetadata): R3FactoryFn {
return compileFactoryFunction(
{
name: meta.name,
type: meta.type,
deps: meta.deps,
typeArgumentCount: meta.typeArgumentCount,
injectFn: meta.injectFn,
},
meta.isPipe);
}
function injectDependencies(
deps: R3DependencyMetadata[], injectFn: o.ExternalReference, isPipe: boolean): o.Expression[] {
return deps.map(dep => compileInjectDependency(dep, injectFn, isPipe));
@ -358,13 +349,6 @@ export function dependenciesFromGlobalMetadata(
return deps;
}
function makeErrorStmt(name: string): o.Statement {
return new o.ThrowStmt(new o.InstantiateExpr(new o.ReadVarExpr('Error'), [
o.literal(
`${name} has a constructor which is not compatible with Dependency Injection. It should probably not be @Injectable().`)
]));
}
function isDelegatedMetadata(meta: R3FactoryMetadata): meta is R3DelegatedFactoryMetadata|
R3DelegatedFnOrClassMetadata {
return (meta as any).delegateType !== undefined;

1
packages/compiler/src/render3/r3_identifiers.ts
View File

@ -211,6 +211,7 @@ export class Identifiers {
o.ExternalReference = {name: 'ɵɵinjectPipeChangeDetectorRef', moduleName: CORE};
static directiveInject: o.ExternalReference = {name: 'ɵɵdirectiveInject', moduleName: CORE};
static invalidFactory: o.ExternalReference = {name: 'ɵɵinvalidFactory', moduleName: CORE};
static templateRefExtractor:
o.ExternalReference = {name: 'ɵɵtemplateRefExtractor', moduleName: CORE};

3
packages/compiler/src/render3/r3_module_compiler.ts
View File

@ -12,7 +12,7 @@ import {mapLiteral} from '../output/map_util';
import * as o from '../output/output_ast';
import {OutputContext} from '../util';
import {R3DependencyMetadata, compileFactoryFunction} from './r3_factory';
import {R3DependencyMetadata, R3FactoryTarget, compileFactoryFunction} from './r3_factory';
import {Identifiers as R3} from './r3_identifiers';
import {R3Reference, convertMetaToOutput, mapToMapExpression} from './util';
@ -210,6 +210,7 @@ export function compileInjector(meta: R3InjectorMetadata): R3InjectorDef {
typeArgumentCount: 0,
deps: meta.deps,
injectFn: R3.inject,
target: R3FactoryTarget.NgModule,
});
const definitionMap = {
factory: result.factory,

6
packages/compiler/src/render3/r3_pipe_compiler.ts
View File

@ -12,7 +12,7 @@ import {DefinitionKind} from '../constant_pool';
import * as o from '../output/output_ast';
import {OutputContext, error} from '../util';
import {R3DependencyMetadata, compileFactoryFromMetadata, compileFactoryFunction, dependenciesFromGlobalMetadata} from './r3_factory';
import {R3DependencyMetadata, R3FactoryTarget, compileFactoryFunction, dependenciesFromGlobalMetadata} from './r3_factory';
import {Identifiers as R3} from './r3_identifiers';
import {typeWithParameters} from './util';
@ -89,8 +89,8 @@ export function compilePipeFromRender2(
pure: pipe.pure,
};
const res = compilePipeFromMetadata(metadata);
const factoryRes =
compileFactoryFromMetadata({...metadata, injectFn: R3.directiveInject, isPipe: true});
const factoryRes = compileFactoryFunction(
{...metadata, injectFn: R3.directiveInject, target: R3FactoryTarget.Pipe});
const definitionField = outputCtx.constantPool.propertyNameOf(DefinitionKind.Pipe);
const ngFactoryDefStatement = new o.ClassStmt(
/* name */ name,

2
packages/compiler/src/render3/view/api.ts
View File

@ -41,7 +41,7 @@ export interface R3DirectiveMetadata {
/**
* Dependencies of the directive's constructor.
*/
deps: R3DependencyMetadata[]|null;
deps: R3DependencyMetadata[]|'invalid'|null;
/**
* Unparsed selector of the directive, or `null` if there was no selector.

12
packages/compiler/src/render3/view/compiler.ts
View File

@ -12,17 +12,17 @@ import {CompileReflector} from '../../compile_reflector';
import {BindingForm, convertPropertyBinding} from '../../compiler_util/expression_converter';
import {ConstantPool, DefinitionKind} from '../../constant_pool';
import * as core from '../../core';
import {AST, Interpolation, ParsedEvent, ParsedEventType, ParsedProperty} from '../../expression_parser/ast';
import {AST, ParsedEvent, ParsedEventType, ParsedProperty} from '../../expression_parser/ast';
import {DEFAULT_INTERPOLATION_CONFIG} from '../../ml_parser/interpolation_config';
import * as o from '../../output/output_ast';
import {ParseError, ParseSourceSpan, typeSourceSpan} from '../../parse_util';
import {ParseError, ParseSourceSpan} from '../../parse_util';
import {CssSelector, SelectorMatcher} from '../../selector';
import {ShadowCss} from '../../shadow_css';
import {CONTENT_ATTR, HOST_ATTR} from '../../style_compiler';
import {BindingParser} from '../../template_parser/binding_parser';
import {OutputContext, error} from '../../util';
import {BoundEvent} from '../r3_ast';
import {compileFactoryFromMetadata, compileFactoryFunction, dependenciesFromGlobalMetadata} from '../r3_factory';
import {R3FactoryTarget, compileFactoryFunction} from '../r3_factory';
import {Identifiers as R3} from '../r3_identifiers';
import {Render3ParseResult} from '../r3_template_transform';
import {prepareSyntheticListenerFunctionName, prepareSyntheticPropertyName, typeWithParameters} from '../util';
@ -330,7 +330,8 @@ export function compileDirectiveFromRender2(
const meta = directiveMetadataFromGlobalMetadata(directive, outputCtx, reflector);
const res = compileDirectiveFromMetadata(meta, outputCtx.constantPool, bindingParser);
const factoryRes = compileFactoryFromMetadata({...meta, injectFn: R3.directiveInject});
const factoryRes = compileFactoryFunction(
{...meta, injectFn: R3.directiveInject, target: R3FactoryTarget.Directive});
const ngFactoryDefStatement = new o.ClassStmt(
name, null,
[new o.ClassField('ɵfac', o.INFERRED_TYPE, [o.StmtModifier.Static], factoryRes.factory)], [],
@ -382,7 +383,8 @@ export function compileComponentFromRender2(
i18nUseExternalIds: true,
};
const res = compileComponentFromMetadata(meta, outputCtx.constantPool, bindingParser);
const factoryRes = compileFactoryFromMetadata({...meta, injectFn: R3.directiveInject});
const factoryRes = compileFactoryFunction(
{...meta, injectFn: R3.directiveInject, target: R3FactoryTarget.Directive});
const ngFactoryDefStatement = new o.ClassStmt(
name, null,
[new o.ClassField('ɵfac', o.INFERRED_TYPE, [o.StmtModifier.Static], factoryRes.factory)], [],

11
packages/compiler/test/compiler_facade_interface_spec.ts
View File

@ -7,7 +7,7 @@
*/
import * as core from '../../core/src/compiler/compiler_facade_interface';
import {R3ResolvedDependencyType} from '../public_api';
import {R3FactoryTarget, R3ResolvedDependencyType} from '../public_api';
import * as compiler from '../src/compiler_facade_interface';
/**
@ -60,6 +60,15 @@ const coreR3ResolvedDependencyType3: core.R3ResolvedDependencyType =
const compilerR3ResolvedDependencyType3: compiler.R3ResolvedDependencyType =
null !as R3ResolvedDependencyType;
const coreR3FactoryTarget: core.R3FactoryTarget = null !as compiler.R3FactoryTarget;
const compilerR3FactoryTarget: compiler.R3FactoryTarget = null !as core.R3FactoryTarget;
const coreR3FactoryTarget2: R3FactoryTarget = null !as core.R3FactoryTarget;
const compilerR3FactoryTarget2: R3FactoryTarget = null !as core.R3FactoryTarget;
const coreR3FactoryTarget3: core.R3FactoryTarget = null !as R3FactoryTarget;
const compilerR3FactoryTarget3: compiler.R3FactoryTarget = null !as R3FactoryTarget;
const coreR3DependencyMetadataFacade: core.R3DependencyMetadataFacade =
null !as compiler.R3DependencyMetadataFacade;
const compilerR3DependencyMetadataFacade: compiler.R3DependencyMetadataFacade =

11
packages/core/src/compiler/compiler_facade_interface.ts
View File

@ -45,6 +45,7 @@ export interface CompilerFacade {
createParseSourceSpan(kind: string, typeName: string, sourceUrl: string): ParseSourceSpan;
R3ResolvedDependencyType: typeof R3ResolvedDependencyType;
R3FactoryTarget: typeof R3FactoryTarget;
ResourceLoader: {new (): ResourceLoader};
}
@ -70,6 +71,14 @@ export enum R3ResolvedDependencyType {
ChangeDetectorRef = 2,
}
export enum R3FactoryTarget {
Directive = 0,
Component = 1,
Injectable = 2,
Pipe = 3,
NgModule = 4,
}
export interface R3DependencyMetadataFacade {
token: any;
resolved: R3ResolvedDependencyType;
@ -167,7 +176,7 @@ export interface R3FactoryDefMetadataFacade {
typeArgumentCount: number;
deps: R3DependencyMetadataFacade[]|null;
injectFn: 'directiveInject'|'inject';
isPipe: boolean;
target: R3FactoryTarget;
}
export type ViewEncapsulation = number;

1
packages/core/src/core_render3_private_export.ts
View File

@ -34,6 +34,7 @@ export {
ɵɵdirectiveInject,
ɵɵinjectAttribute,
ɵɵinjectPipeChangeDetectorRef,
ɵɵinvalidFactory,
ɵɵgetFactoryOf,
ɵɵgetInheritedFactory,
ɵɵsetComponentScope,

6
packages/core/src/di/jit/injectable.ts
View File

@ -48,14 +48,14 @@ export function compileInjectable(type: Type<any>, srcMeta?: Injectable): void {
get: () => {
if (ngFactoryDef === null) {
const metadata = getInjectableMetadata(type, srcMeta);
ngFactoryDef =
getCompilerFacade().compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {
const compiler = getCompilerFacade();
ngFactoryDef = compiler.compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {
name: metadata.name,
type: metadata.type,
typeArgumentCount: metadata.typeArgumentCount,
deps: reflectDependencies(type),
injectFn: 'inject',
isPipe: false
target: compiler.R3FactoryTarget.Pipe
});
}
return ngFactoryDef;

1
packages/core/src/render3/index.ts
View File

@ -56,6 +56,7 @@ export {
ɵɵcontainerRefreshStart,
ɵɵdirectiveInject,
ɵɵinvalidFactory,
ɵɵelement,
ɵɵelementContainer,

18
packages/core/src/render3/instructions/di.ts
View File

@ -59,3 +59,21 @@ export function ɵɵdirectiveInject<T>(
export function ɵɵinjectAttribute(attrNameToInject: string): string|null {
return injectAttributeImpl(getPreviousOrParentTNode(), attrNameToInject);
}
/**
* Throws an error indicating that a factory function could not be generated by the compiler for a
* particular class.
*
* This instruction allows the actual error message to be optimized away when ngDevMode is turned
* off, saving bytes of generated code while still providing a good experience in dev mode.
*
* The name of the class is not mentioned here, but will be in the generated factory function name
* and thus in the stack trace.
*
* @codeGenApi
*/
export function ɵɵinvalidFactory(): never {
const msg =
ngDevMode ? `This constructor was not compatible with Dependency Injection.` : 'invalid';
throw new Error(msg);
}

9
packages/core/src/render3/jit/directive.ts
View File

@ -165,9 +165,12 @@ function addDirectiveFactoryDef(type: Type<any>, metadata: Directive | Component
get: () => {
if (ngFactoryDef === null) {
const meta = getDirectiveMetadata(type, metadata);
ngFactoryDef = getCompilerFacade().compileFactory(
angularCoreEnv, `ng:///${type.name}/ɵfac.js`,
{...meta.metadata, injectFn: 'directiveInject', isPipe: false});
const compiler = getCompilerFacade();
ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${type.name}/ɵfac.js`, {
...meta.metadata,
injectFn: 'directiveInject',
target: compiler.R3FactoryTarget.Directive
});
}
return ngFactoryDef;
},

1
packages/core/src/render3/jit/environment.ts
View File

@ -42,6 +42,7 @@ export const angularCoreEnv: {[name: string]: Function} =
'ɵɵgetInheritedFactory': r3.ɵɵgetInheritedFactory,
'ɵɵinject': ɵɵinject,
'ɵɵinjectAttribute': r3.ɵɵinjectAttribute,
'ɵɵinvalidFactory': r3.ɵɵinvalidFactory,
'ɵɵinjectPipeChangeDetectorRef': r3.ɵɵinjectPipeChangeDetectorRef,
'ɵɵtemplateRefExtractor': r3.ɵɵtemplateRefExtractor,
'ɵɵNgOnChangesFeature': r3.ɵɵNgOnChangesFeature,

5
packages/core/src/render3/jit/pipe.ts
View File

@ -22,9 +22,10 @@ export function compilePipe(type: Type<any>, meta: Pipe): void {
get: () => {
if (ngFactoryDef === null) {
const metadata = getPipeMetadata(type, meta);
ngFactoryDef = getCompilerFacade().compileFactory(
const compiler = getCompilerFacade();
ngFactoryDef = compiler.compileFactory(
angularCoreEnv, `ng:///${metadata.name}/ɵfac.js`,
{...metadata, injectFn: 'directiveInject', isPipe: true});
{...metadata, injectFn: 'directiveInject', target: compiler.R3FactoryTarget.Pipe});
}
return ngFactoryDef;
},

2
tools/public_api_guard/core/core.d.ts vendored
View File

@ -921,6 +921,8 @@ export interface ɵɵInjectorDef<T> {
export declare function ɵɵinjectPipeChangeDetectorRef(flags?: InjectFlags): ChangeDetectorRef | null;
export declare function ɵɵinvalidFactory(): never;
export declare function ɵɵlistener(eventName: string, listenerFn: (e?: any) => any, useCapture?: boolean, eventTargetResolver?: GlobalTargetResolver): void;
export declare function ɵɵloadQuery<T>(): QueryList<T>;