refactor(core): remove `getFactoryOf` from `angularCoreDiEnv` (#41040)

This function is never actually generated directly so it can be removed
from the context passed to the JIT compiler.

PR Close #41040

packages/compiler/src/render3/r3_factory.ts

@@ -71,12 +71,6 @@ export interface R3ConstructorFactoryMetadata {
 export enum R3FactoryDelegateType {
   Class,
   Function,
-  Factory,
-}
-
-export interface R3DelegatedFactoryMetadata extends R3ConstructorFactoryMetadata {
-  delegate: o.Expression;
-  delegateType: R3FactoryDelegateType.Factory;
 }
 
 export interface R3DelegatedFnOrClassMetadata extends R3ConstructorFactoryMetadata {
@@ -89,8 +83,8 @@ export interface R3ExpressionFactoryMetadata extends R3ConstructorFactoryMetadat
   expression: o.Expression;
 }
 
-export type R3FactoryMetadata = R3ConstructorFactoryMetadata|R3DelegatedFactoryMetadata|
-    R3DelegatedFnOrClassMetadata|R3ExpressionFactoryMetadata;
+export type R3FactoryMetadata =
+    R3ConstructorFactoryMetadata|R3DelegatedFnOrClassMetadata|R3ExpressionFactoryMetadata;
 
 export enum R3FactoryTarget {
   Directive = 0,
@@ -239,20 +233,7 @@ export function compileFactoryFunction(meta: R3FactoryMetadata): R3FactoryFn {
     return r;
   }
 
-  if (isDelegatedMetadata(meta) && meta.delegateType === R3FactoryDelegateType.Factory) {
-    const delegateFactory = o.variable(`ɵ${meta.name}_BaseFactory`);
-    const getFactoryOf = o.importExpr(R3.getFactoryOf);
-    if (meta.delegate.isEquivalent(meta.internalType)) {
-      throw new Error(`Illegal state: compiling factory that delegates to itself`);
-    }
-    const delegateFactoryStmt =
-        delegateFactory.set(getFactoryOf.callFn([meta.delegate])).toDeclStmt(o.INFERRED_TYPE, [
-          o.StmtModifier.Exported, o.StmtModifier.Final
-        ]);
-
-    statements.push(delegateFactoryStmt);
-    retExpr = makeConditionalFactory(delegateFactory.callFn([]));
-  } else if (isDelegatedMetadata(meta)) {
+  if (isDelegatedMetadata(meta)) {
     // This type is created with a delegated factory. If a type parameter is not specified, call
     // the factory instead.
     const delegateArgs =
@@ -418,8 +399,7 @@ export function dependenciesFromGlobalMetadata(
   return deps;
 }
 
-function isDelegatedMetadata(meta: R3FactoryMetadata): meta is R3DelegatedFactoryMetadata|
-    R3DelegatedFnOrClassMetadata {
+function isDelegatedMetadata(meta: R3FactoryMetadata): meta is R3DelegatedFnOrClassMetadata {
   return (meta as any).delegateType !== undefined;
 }
 

packages/compiler/src/render3/r3_identifiers.ts

@@ -313,11 +313,6 @@ export class Identifiers {
 
   static listener: o.ExternalReference = {name: 'ɵɵlistener', moduleName: CORE};
 
-  static getFactoryOf: o.ExternalReference = {
-    name: 'ɵɵgetFactoryOf',
-    moduleName: CORE,
-  };
-
   static getInheritedFactory: o.ExternalReference = {
     name: 'ɵɵgetInheritedFactory',
     moduleName: CORE,

packages/core/src/di/jit/environment.ts

@@ -5,13 +5,8 @@
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
  */
-
-import {Type} from '../../interface/type';
-import {isForwardRef, resolveForwardRef} from '../forward_ref';
 import {ɵɵinject, ɵɵinvalidFactoryDep} from '../injector_compatibility';
-import {getInjectableDef, getInjectorDef, ɵɵdefineInjectable, ɵɵdefineInjector} from '../interface/defs';
-
-
+import {ɵɵdefineInjectable, ɵɵdefineInjector} from '../interface/defs';
 
 /**
  * A mapping of the @angular/core API surface used in generated expressions to the actual symbols.
@@ -22,23 +17,5 @@ export const angularCoreDiEnv: {[name: string]: Function} = {
   'ɵɵdefineInjectable': ɵɵdefineInjectable,
   'ɵɵdefineInjector': ɵɵdefineInjector,
   'ɵɵinject': ɵɵinject,
-  'ɵɵgetFactoryOf': getFactoryOf,
   'ɵɵinvalidFactoryDep': ɵɵinvalidFactoryDep,
 };
-
-function getFactoryOf<T>(type: Type<any>): ((type?: Type<T>) => T)|null {
-  const typeAny = type as any;
-
-  if (isForwardRef(type)) {
-    return (() => {
-             const factory = getFactoryOf<T>(resolveForwardRef(typeAny));
-             return factory ? factory() : null;
-           }) as any;
-  }
-
-  const def = getInjectableDef<T>(typeAny) || getInjectorDef<T>(typeAny);
-  if (!def || def.factory === undefined) {
-    return null;
-  }
-  return def.factory;
-}

packages/core/src/render3/jit/environment.ts

@@ -37,7 +37,6 @@ export const angularCoreEnv: {[name: string]: Function} =
        'ɵɵdefineNgModule': r3.ɵɵdefineNgModule,
        'ɵɵdefinePipe': r3.ɵɵdefinePipe,
        'ɵɵdirectiveInject': r3.ɵɵdirectiveInject,
-       'ɵɵgetFactoryOf': r3.ɵɵgetFactoryOf,
        'ɵɵgetInheritedFactory': r3.ɵɵgetInheritedFactory,
        'ɵɵinject': ɵɵinject,
        'ɵɵinjectAttribute': r3.ɵɵinjectAttribute,