/** * @license * Copyright Google Inc. All Rights Reserved. * * 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 */ (function (factory) { if (typeof module === "object" && typeof module.exports === "object") { var v = factory(require, exports); if (v !== undefined) module.exports = v; } else if (typeof define === "function" && define.amd) { define("@angular/compiler/src/injectable_compiler_2", ["require", "exports", "tslib", "@angular/compiler/src/identifiers", "@angular/compiler/src/output/output_ast", "@angular/compiler/src/render3/r3_factory", "@angular/compiler/src/render3/util"], factory); } })(function (require, exports) { "use strict"; Object.defineProperty(exports, "__esModule", { value: true }); var tslib_1 = require("tslib"); var identifiers_1 = require("@angular/compiler/src/identifiers"); var o = require("@angular/compiler/src/output/output_ast"); var r3_factory_1 = require("@angular/compiler/src/render3/r3_factory"); var util_1 = require("@angular/compiler/src/render3/util"); function compileInjectable(meta) { var result = null; var factoryMeta = { name: meta.name, type: meta.type, internalType: meta.internalType, typeArgumentCount: meta.typeArgumentCount, deps: [], injectFn: identifiers_1.Identifiers.inject, target: r3_factory_1.R3FactoryTarget.Injectable, }; if (meta.useClass !== undefined) { // meta.useClass has two modes of operation. Either deps are specified, in which case `new` is // used to instantiate the class with dependencies injected, or deps are not specified and // the factory of the class is used to instantiate it. // // A special case exists for useClass: Type where Type is the injectable type itself and no // deps are specified, in which case 'useClass' is effectively ignored. var useClassOnSelf = meta.useClass.isEquivalent(meta.internalType); var deps = undefined; if (meta.userDeps !== undefined) { deps = meta.userDeps; } if (deps !== undefined) { // factory: () => new meta.useClass(...deps) result = r3_factory_1.compileFactoryFunction(tslib_1.__assign(tslib_1.__assign({}, factoryMeta), { delegate: meta.useClass, delegateDeps: deps, delegateType: r3_factory_1.R3FactoryDelegateType.Class })); } else if (useClassOnSelf) { result = r3_factory_1.compileFactoryFunction(factoryMeta); } else { result = delegateToFactory(meta.type.value, meta.useClass); } } else if (meta.useFactory !== undefined) { if (meta.userDeps !== undefined) { result = r3_factory_1.compileFactoryFunction(tslib_1.__assign(tslib_1.__assign({}, factoryMeta), { delegate: meta.useFactory, delegateDeps: meta.userDeps || [], delegateType: r3_factory_1.R3FactoryDelegateType.Function })); } else { result = { statements: [], factory: o.fn([], [new o.ReturnStatement(meta.useFactory.callFn([]))]) }; } } else if (meta.useValue !== undefined) { // Note: it's safe to use `meta.useValue` instead of the `USE_VALUE in meta` check used for // client code because meta.useValue is an Expression which will be defined even if the actual // value is undefined. result = r3_factory_1.compileFactoryFunction(tslib_1.__assign(tslib_1.__assign({}, factoryMeta), { expression: meta.useValue })); } else if (meta.useExisting !== undefined) { // useExisting is an `inject` call on the existing token. result = r3_factory_1.compileFactoryFunction(tslib_1.__assign(tslib_1.__assign({}, factoryMeta), { expression: o.importExpr(identifiers_1.Identifiers.inject).callFn([meta.useExisting]) })); } else { result = delegateToFactory(meta.type.value, meta.internalType); } var token = meta.internalType; var injectableProps = { token: token, factory: result.factory }; // Only generate providedIn property if it has a non-null value if (meta.providedIn.value !== null) { injectableProps.providedIn = meta.providedIn; } var expression = o.importExpr(identifiers_1.Identifiers.ɵɵdefineInjectable).callFn([util_1.mapToMapExpression(injectableProps)]); var type = new o.ExpressionType(o.importExpr(identifiers_1.Identifiers.InjectableDef, [util_1.typeWithParameters(meta.type.type, meta.typeArgumentCount)])); return { expression: expression, type: type, statements: result.statements, }; } exports.compileInjectable = compileInjectable; function delegateToFactory(type, internalType) { return { statements: [], // If types are the same, we can generate `factory: type.ɵfac` // If types are different, we have to generate a wrapper function to ensure // the internal type has been resolved (`factory: function(t) { return type.ɵfac(t); }`) factory: type.node === internalType.node ? 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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {Identifiers} from './identifiers';\nimport * as o from './output/output_ast';\nimport {compileFactoryFunction, R3DependencyMetadata, R3FactoryDelegateType, R3FactoryMetadata, R3FactoryTarget} from './render3/r3_factory';\nimport {mapToMapExpression, R3Reference, typeWithParameters} from './render3/util';\n\nexport interface InjectableDef {\n  expression: o.Expression;\n  type: o.Type;\n  statements: o.Statement[];\n}\n\nexport interface R3InjectableMetadata {\n  name: string;\n  type: R3Reference;\n  internalType: o.Expression;\n  typeArgumentCount: number;\n  providedIn: o.Expression;\n  useClass?: o.Expression;\n  useFactory?: o.Expression;\n  useExisting?: o.Expression;\n  useValue?: o.Expression;\n  userDeps?: R3DependencyMetadata[];\n}\n\nexport function compileInjectable(meta: R3InjectableMetadata): InjectableDef {\n  let result: {factory: o.Expression, statements: o.Statement[]}|null = null;\n\n  const factoryMeta: R3FactoryMetadata = {\n    name: meta.name,\n    type: meta.type,\n    internalType: meta.internalType,\n    typeArgumentCount: meta.typeArgumentCount,\n    deps: [],\n    injectFn: Identifiers.inject,\n    target: R3FactoryTarget.Injectable,\n  };\n\n  if (meta.useClass !== undefined) {\n    // meta.useClass has two modes of operation. Either deps are specified, in which case `new` is\n    // used to instantiate the class with dependencies injected, or deps are not specified and\n    // the factory of the class is used to instantiate it.\n    //\n    // A special case exists for useClass: Type where Type is the injectable type itself and no\n    // deps are specified, in which case 'useClass' is effectively ignored.\n\n    const useClassOnSelf = meta.useClass.isEquivalent(meta.internalType);\n    let deps: R3DependencyMetadata[]|undefined = undefined;\n    if (meta.userDeps !== undefined) {\n      deps = meta.userDeps;\n    }\n\n    if (deps !== undefined) {\n      // factory: () => new meta.useClass(...deps)\n      result = compileFactoryFunction({\n        ...factoryMeta,\n        delegate: meta.useClass,\n        delegateDeps: deps,\n        delegateType: R3FactoryDelegateType.Class,\n      });\n    } else if (useClassOnSelf) {\n      result = compileFactoryFunction(factoryMeta);\n    } else {\n      result = delegateToFactory(\n          meta.type.value as o.WrappedNodeExpr<any>, meta.useClass as o.WrappedNodeExpr<any>);\n    }\n  } else if (meta.useFactory !== undefined) {\n    if (meta.userDeps !== undefined) {\n      result = compileFactoryFunction({\n        ...factoryMeta,\n        delegate: meta.useFactory,\n        delegateDeps: meta.userDeps || [],\n        delegateType: R3FactoryDelegateType.Function,\n      });\n    } else {\n      result = {\n        statements: [],\n        factory: o.fn([], [new o.ReturnStatement(meta.useFactory.callFn([]))])\n      };\n    }\n  } else if (meta.useValue !== undefined) {\n    // Note: it's safe to use `meta.useValue` instead of the `USE_VALUE in meta` check used for\n    // client code because meta.useValue is an Expression which will be defined even if the actual\n    // value is undefined.\n    result = compileFactoryFunction({\n      ...factoryMeta,\n      expression: meta.useValue,\n    });\n  } else if (meta.useExisting !== undefined) {\n    // useExisting is an `inject` call on the existing token.\n    result = compileFactoryFunction({\n      ...factoryMeta,\n      expression: o.importExpr(Identifiers.inject).callFn([meta.useExisting]),\n    });\n  } else {\n    result = delegateToFactory(\n        meta.type.value as o.WrappedNodeExpr<any>, meta.internalType as o.WrappedNodeExpr<any>);\n  }\n\n  const token = meta.internalType;\n\n  const injectableProps: {[key: string]: o.Expression} = {token, factory: result.factory};\n\n  // Only generate providedIn property if it has a non-null value\n  if ((meta.providedIn as o.LiteralExpr).value !== null) {\n    injectableProps.providedIn = meta.providedIn;\n  }\n\n  const expression =\n      o.importExpr(Identifiers.ɵɵdefineInjectable).callFn([mapToMapExpression(injectableProps)]);\n  const type = new o.ExpressionType(o.importExpr(\n      Identifiers.InjectableDef, [typeWithParameters(meta.type.type, meta.typeArgumentCount)]));\n\n  return {\n    expression,\n    type,\n    statements: result.statements,\n  };\n}\n\nfunction delegateToFactory(type: o.WrappedNodeExpr<any>, internalType: o.WrappedNodeExpr<any>) {\n  return {\n    statements: [],\n    // If types are the same, we can generate `factory: type.ɵfac`\n    // If types are different, we have to generate a wrapper function to ensure\n    // the internal type has been resolved (`factory: function(t) { return type.ɵfac(t); }`)\n    factory: type.node === internalType.node ?\n        internalType.prop('ɵfac') :\n        o.fn([new o.FnParam('t', o.DYNAMIC_TYPE)], [new o.ReturnStatement(internalType.callMethod(\n                                                       'ɵfac', [o.variable('t')]))])\n  };\n}\n"]}