Ivy: Debug assert: importing a Reference to non-declaration?

[marcj]

🐞 bug report

Is this a regression?

Yes, worked in non-ivy.

Description

When importing and using a third party file that contains only interfaces/types I get an error when building in production mode. In development mode everything works fine.

Debug assert: importing a Reference to non-declaration?

angular/packages/compiler-cli/src/ngtsc/imports/src/emitter.ts

Line 131 in 0b1e34d

throw new Error('Debug assert: importing a Reference to non-declaration?');

🔬 Minimal Reproduction

I still work on that. I have it in a rather big code base, so this might take some time.

🔥 Exception or Error

ERROR in Error: Debug assert: importing a Reference to non-declaration?
    at AbsoluteModuleStrategy.emit (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/imports/src/emitter.js:117:23)
    at ReferenceEmitter.emit (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/imports/src/emitter.js:42:44)
    at TypeCheckFile.Environment.referenceType (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/environment.js:208:42)
    at TypeEmitter.emitReference (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/environment.js:216:63)
    at TypeEmitter.emitTypeReference (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_emitter.js:117:40)
    at Object.visitTypeReferenceNode (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_emitter.js:93:72)
    at visitTypeNode (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_emitter.js:130:28)
    at TypeEmitter.emitType (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_emitter.js:92:20)
    at /Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_parameter_emitter.js:57:79
    at Array.map (<anonymous>)
    at TypeParameterEmitter.emit (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_parameter_emitter.js:56:40)
    at TypeCheckFile.Environment.emitTypeParameters (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/environment.js:216:28)
    at TypeCheckFile.Environment.typeCtorFor (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/environment.js:93:39)
    at tcbCallTypeCtor (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_check_block.js:1276:32)
    at TcbDirectiveOp.execute (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_check_block.js:332:28)
    at Scope.executeOp (/Users/marc/bude/deepkit/packages/deepkit/node_modules/@angular/compiler-cli/src/ngtsc/typecheck/src/type_check_block.js:884:26)

When I print all the arguments via

console.log('ref', ref, context, importMode);
throw new Error('Debug assert: importing a Reference to non-declaration?');

in that method I get:

ef Reference {
  node: NodeObject {
    pos: 181,
    end: 253,
    flags: 0,
    modifierFlagsCache: 536870913,
    transformFlags: 536870913,
    parent: SourceFileObject {
      pos: 0,
      end: 9926,
      flags: 0,
      modifierFlagsCache: 0,
      transformFlags: 536870913,
      parent: undefined,
      kind: 285,
      text: 'import {JSONEntity} from "./core";\n' +
        'import {CollectionPaginationEvent, CollectionSort, FilterParameters} from "./collection";\n' +
        'import {PropertySchemaSerialized} from "@marcj/marshal";\n' +
        '\n' +
        'export interface IdInterface {\n' +
        '    id: string;\n' +
        '\n' +
        '    version: number;\n' +
        '}\n' +
        '\n' +
        'export interface EntityPatches {\n' +
        '    [path: string]: any;\n' +
        '}\n' +
        '\n' +
        'export interface ExchangeEntityBase {\n' +
        '    id: string;\n' +
        '    version: number;\n' +
        '}\n' +
        '\n' +
        'export interface ExchangeEntityAdd extends ExchangeEntityBase {\n' +
        "    type: 'add';\n" +
        '    item: any;\n' +
        '}\n' +
        '\n' +
        'export interface ExchangeEntityRemove extends ExchangeEntityBase {\n' +
        "    type: 'remove';\n" +
        '}\n' +
        '\n' +
        'export interface ExchangeEntityRemoveMany {\n' +
        "    type: 'removeMany';\n" +
        '    ids: string[];\n' +
        '}\n' +
        '\n' +
        'export interface ExchangeEntityUpdate extends ExchangeEntityBase {\n' +
        "    type: 'update';\n" +
        '    item: any;\n' +
        '}\n' +
        '\n' +
        'export interface ExchangeEntityPatch extends ExchangeEntityBase {\n' +
        "    type: 'patch';\n" +
        '    patch: EntityPatches;\n' +
        '    item: any;\n' +
        '}\n' +
        '\n' +
        'export type ExchangeEntity = ExchangeEntityAdd | ExchangeEntityRemove | ExchangeEntityUpdate | ExchangeEntityPatch | ExchangeEntityRemoveMany;\n' +
        '\n' +
        'export interface ClientPushMessage {\n' +
        "    name: 'push-message/reply';\n" +
        '    replyId: number;\n' +
        '    data: any;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageId {\n' +
        '    id: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessagePeerRegisterController {\n' +
        "    name: 'peerController/register';\n" +
        '    controllerName: string;\n' +
        '}\n' +
        '\n' +
        '//from client to peer\n' +
        'export interface ClientMessagePeerMessage {\n' +
        "    name: 'peerController/message';\n" +
        '    controllerName: string;\n' +
        '    clientId: string;\n' +
        '    data: ServerMessageResult;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessagePeerEndMessage {\n' +
        "    name: 'peerUser/end';\n" +
        '}\n' +
        '\n' +
        'export interface ClientMessagePeerUnRegisterController {\n' +
        "    name: 'peerController/unregister';\n" +
        '    controllerName: string;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageActionTypes {\n' +
        "    name: 'actionTypes';\n" +
        '    controller: string;\n' +
        '    action: string;\n' +
        '    timeout: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageAuthorize {\n' +
        "    name: 'authenticate';\n" +
        '    token: any;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageAction {\n' +
        "    name: 'action';\n" +
        '    controller: string;\n' +
        '    action: string;\n' +
        '    args: any[];\n' +
        '    timeout: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientPeerMessageAction {\n' +
        "    name: 'peerMessage';\n" +
        '    controller: string;\n' +
        '    message: any;\n' +
        '    timeout: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageEntityUnsubscribe {\n' +
        "    name: 'entity/unsubscribe';\n" +
        '    forId: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageSubjectUnsubscribe {\n' +
        "    name: 'subject/unsubscribe';\n" +
        '    forId: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageCollectionUnsubscribe {\n' +
        "    name: 'collection/unsubscribe';\n" +
        '    forId: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageCollectionPagination {\n' +
        "    name: 'collection/pagination';\n" +
        '    forId: number;\n' +
        '    page: number;\n' +
        '    itemsPerPage: number;\n' +
        '    parameters: FilterParameters;\n' +
        "    sort: {field: string, direction: 'asc' | 'desc'}[];\n" +
        '}\n' +
        '\n' +
        'export interface ClientMessageObservableSubscribe {\n' +
        "    name: 'observable/subscribe';\n" +
        '    forId: number;\n' +
        '    subscribeId: number;\n' +
        '}\n' +
        '\n' +
        'export interface ClientMessageObservableUnsubscribe {\n' +
        "    name: 'observable/unsubscribe';\n" +
        '    forId: number;\n' +
        '    subscribeId: number;\n' +
        '}\n' +
        '\n' +
        'export type ClientMessageWithoutId = ClientPushMessage\n' +
        '    | ClientMessagePeerUnRegisterController\n' +
        '    | ClientMessagePeerRegisterController\n' +
        '    | ClientMessageCollectionPagination\n' +
        '    | ClientMessagePeerMessage\n' +
        '    | ClientMessagePeerEndMessage\n' +
        '    | ClientMessageActionTypes\n' +
        '    | ClientMessageAuthorize\n' +
        '    | ClientMessageAction\n' +
        '    | ClientMessageEntityUnsubscribe\n' +
        '    | ClientMessageObservableSubscribe\n' +
        '    | ClientMessageObservableUnsubscribe\n' +
        '    | ClientMessageCollectionUnsubscribe\n' +
        '    | ClientMessageSubjectUnsubscribe\n' +
        '    | ClientPeerMessageAction;\n' +
        '\n' +
        'export type ClientMessageAll = (ClientMessageWithoutId & ClientMessageId);\n' +
        '\n' +
        'export interface MessageEntityBase {\n' +
        '    entityName: string;\n' +
        '    id: string;\n' +
        '    version: number;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageEntityRemove extends MessageEntityBase {\n' +
        "    type: 'entity/remove';\n" +
        '}\n' +
        '\n' +
        'export interface ServerMessageEntityRemoveMany {\n' +
        '    entityName: string;\n' +
        "    type: 'entity/removeMany';\n" +
        '    ids: string[];\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageEntityUpdate extends MessageEntityBase {\n' +
        "    type: 'entity/update';\n" +
        '    data: any;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageEntityPatch extends MessageEntityBase {\n' +
        "    type: 'entity/patch';\n" +
        '    patch: EntityPatches;\n' +
        '}\n' +
        '\n' +
        'export type ServerMessageEntity = ServerMessageEntityRemove | ServerMessageEntityRemoveMany | ServerMessageEntityUpdate | ServerMessageEntityPatch;\n' +
        '\n' +
        'export interface CollectionStreamSet {\n' +
        "    type: 'set';\n" +
        '    items: IdInterface[];\n' +
        '    total: number;\n' +
        '}\n' +
        '\n' +
        'export interface CollectionStreamSort {\n' +
        "    type: 'sort';\n" +
        '    ids: string[];\n' +
        '}\n' +
        '\n' +
        'export interface CollectionStreamAdd {\n' +
        "    type: 'add';\n" +
        '    item: IdInterface;\n' +
        '}\n' +
        '\n' +
        'export interface CollectionStreamBatchStart {\n' +
        "    type: 'batch/start';\n" +
        '}\n' +
        '\n' +
        'export interface CollectionStreamBatchEnd {\n' +
        "    type: 'batch/end';\n" +
        '}\n' +
        '\n' +
        'export interface CollectionStreamReady {\n' +
        "    type: 'ready';\n" +
        '}\n' +
        '\n' +
        'export interface CollectionStreamRemove {\n' +
        "    type: 'remove';\n" +
        '    id: string;\n' +
        '}\n' +
        '\n' +
        'export interface CollectionStreamRemoveMany {\n' +
        "    type: 'removeMany';\n" +
        '    ids: string[];\n' +
        '}\n' +
        '\n' +
        'export interface StreamFileSet {\n' +
        "    type: 'set';\n" +
        '    path: string;\n' +
        '    version: number;\n' +
        '}\n' +
        '\n' +
        'export interface StreamFileAppend {\n' +
        "    type: 'append';\n" +
        '    path: string;\n' +
        '    version: number;\n' +
        '    content: any;\n' +
        '    size: number;\n' +
        '}\n' +
        '\n' +
        'export interface StreamFileRemove {\n' +
        "    type: 'remove';\n" +
        '    path: string;\n' +
        '}\n' +
        '\n' +
        'export interface CollectionStreamPagination {\n' +
        "    type: 'pagination';\n" +
        '    event: CollectionPaginationEvent;\n' +
        '}\n' +
        '\n' +
        'export type CollectionStream =\n' +
        '    CollectionStreamBatchStart\n' +
        '    | CollectionStreamBatchEnd\n' +
        '    | CollectionStreamPagination\n' +
        '    | CollectionStreamSet\n' +
        '    | CollectionStreamSort\n' +
        '    | CollectionStreamAdd\n' +
        '    | CollectionStreamRemove\n' +
        '    | CollectionStreamRemoveMany\n' +
        '    | CollectionStreamReady;\n' +
        '\n' +
        'export type StreamFileResult = StreamFileSet | StreamFileAppend | StreamFileRemove;\n' +
        '\n' +
        'export interface ServerMessageTypeJson {\n' +
        "    type: 'type';\n" +
        '    id: number;\n' +
        "    returnType: 'json';\n" +
        '}\n' +
        '\n' +
        'export interface ServerMessageTypeCollection {\n' +
        "    type: 'type';\n" +
        '    id: number;\n' +
        "    returnType: 'collection';\n" +
        '    pagination: {\n' +
        '        active: boolean,\n' +
        '        itemsPerPage: number,\n' +
        '        page: number,\n' +
        '        total: number,\n' +
        '        sort: CollectionSort[],\n' +
        '        parameters: FilterParameters,\n' +
        '    };\n' +
        '    entityName: string;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageTypeObservable {\n' +
        "    type: 'type';\n" +
        "    returnType: 'observable';\n" +
        '    id: number;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageTypeEntity<T extends IdInterface> {\n' +
        "    type: 'type';\n" +
        "    returnType: 'entity';\n" +
        '    id: number;\n' +
        '    entityName?: string;\n' +
        '    item?: JSONEntity<T>;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageTypeSubject {\n' +
        "    type: 'type';\n" +
        "    returnType: 'subject';\n" +
        '    id: number;\n' +
        '    encoding: PropertySchemaSerialized;\n' +
        '    data: any;\n' +
        '}\n' +
        '\n' +
        'export type ServerMessageType = ServerMessageTypeJson | ServerMessageTypeCollection | ServerMessageTypeObservable\n' +
        '    | ServerMessageTypeEntity<IdInterface> | ServerMessageTypeSubject;\n' +
        '\n' +
        'export interface ServerMessageNextJson {\n' +
        "    type: 'next/json';\n" +
        '    id: number;\n' +
        '    encoding: PropertySchemaSerialized;\n' +
        '    next: any;\n' +
        '}\n' +
        '\n' +
        'export interface ServerPushMessageMessage {\n' +
        "    type: 'push-message';\n" +
        '    replyId: number;\n' +
        '    next: any;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageNextObservable {\n' +
        "    type: 'next/observable';\n" +
        '    id: number;\n' +
        '    encoding: PropertySchemaSerialized;\n' +
        '    next: any;\n' +
        '    subscribeId: number;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageNextSubject {\n' +
        "    type: 'next/subject';\n" +
        '    id: number;\n' +
        '    encoding: PropertySchemaSerialized;\n' +
        '    next: any;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageAppendSubject {\n' +
        "    type: 'append/subject';\n" +
        '    id: number;\n' +
        '    encoding: PropertySchemaSerialized;\n' +
        '    append: any;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageNextCollection {\n' +
        "    type: 'next/collection';\n" +
        '    id: number;\n' +
        '    next: CollectionStream;\n' +
        '}\n' +
        '\n' +
        'export type ServerMessageNext = ServerPushMessageMessage\n' +
        '    | ServerMessageNextJson\n' +
        '    | ServerMessageNextObservable\n' +
        '    | ServerMessageNextCollection\n' +
        '    | ServerMessageNextSubject\n' +
        '    | ServerMessageAppendSubject;\n' +
        '\n' +
        'export interface ServerMessageAck {\n' +
        "    type: 'ack';\n" +
        '    id: number;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageCompleteGeneral {\n' +
        "    type: 'complete';\n" +
        '    id: number;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageCompleteObservable {\n' +
        "    type: 'complete/observable';\n" +
        '    id: number;\n' +
        '    subscribeId: number;\n' +
        '}\n' +
        '\n' +
        'export type ServerMessageComplete = ServerMessageAck | ServerMessageCompleteGeneral | ServerMessageCompleteObservable;\n' +
        '\n' +
        'export interface ServerMessageErrorGeneral {\n' +
        "    type: 'error';\n" +
        '    id: number;\n' +
        '    error: any;\n' +
        '    stack: any;\n' +
        "    entityName: string | '@error:default';\n" +
        '    code?: string;\n' +
        '}\n' +
        '\n' +
        'export interface ServerMessageErrorObservable {\n' +
        "    type: 'error/observable';\n" +
        '    id: number;\n' +
        '    error: any;\n' +
        '    stack: any;\n' +
        "    entityName: string | '@error:default';\n" +
        '    subscribeId: number;\n' +
        '}\n' +
        '\n' +
        'export type ServerMessageError = ServerMessageErrorGeneral | ServerMessageErrorObservable;\n' +
        '\n' +
        'export interface ServerMessageAuthorize {\n' +
        "    type: 'authenticate/result';\n" +
        '    id: number;\n' +
        '    result: boolean;\n' +
        '}\n' +
        '\n' +
        "export type ServerMessageActionTypeNames = 'Entity' | 'Object' | 'Any' | 'Plain' | 'String' | 'Date' | 'Number' | 'Boolean' | 'undefined';\n" +
        '\n' +
        'export interface ServerMessageActionTypes {\n' +
        "    type: 'actionTypes/result';\n" +
        '    id: number;\n' +
        '    parameters: PropertySchemaSerialized[];\n' +
        '}\n' +
        '\n' +
        'export type ServerMessageResult = ServerMessageActionTypes | ServerMessageAuthorize | ServerMessageType\n' +
        '    | ServerMessageNext | ServerMessageComplete | ServerMessageError;\n' +
        '\n' +
        'export interface ServerMessageChannel {\n' +
        "    type: 'channel';\n" +
        '    name: string;\n' +
        '    data: any;\n' +
        '}\n' +
        '\n' +
        '/**\n' +
        ' * A peer message, from server to client wrapping a message sent from\n' +
        ' * the peer controller.\n' +
        ' */\n' +
        'export interface ServerMessagePeerChannelMessage {\n' +
        '    id: number;\n' +
        "    type: 'peerController/message';\n" +
        '    clientId: string;\n' +
        '    data: ClientMessageAll;\n' +
        '}\n' +
        '\n' +
        '\n' +
        'export type ServerMessageAll = ServerMessageResult | ServerMessagePeerChannelMessage | ServerMessageChannel | ServerMessageEntity;\n',
      bindDiagnostics: [],
      bindSuggestionDiagnostics: undefined,
      languageVersion: 4,
      fileName: '/Users/marc/bude/deepkit/packages/deepkit/node_modules/@marcj/glut-core/src/contract.ts',
      languageVariant: 0,
      isDeclarationFile: false,
      scriptKind: 3,
      pragmas: Map {},
      checkJsDirective: undefined,
      referencedFiles: [],
      typeReferenceDirectives: [],
      libReferenceDirectives: [],
      amdDependencies: [],
      hasNoDefaultLib: false,
      statements: [Array],
      endOfFileToken: [TokenObject],
      externalModuleIndicator: [NodeObject],
      nodeCount: 1085,
      identifierCount: 354,
      identifiers: [Map],
      parseDiagnostics: [],
      path: '/Users/marc/bude/deepkit/packages/deepkit/node_modules/@marcj/glut-core/src/contract.ts',
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      originalFileName: '/Users/marc/bude/deepkit/packages/deepkit/node_modules/@marcj/glut-core/src/contract.ts',
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      symbolCount: 340,
      classifiableNames: [Map],
      id: 39647
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    kind: 242,
    decorators: undefined,
    modifiers: [ [TokenObject], pos: 181, end: 189, transformFlags: 536870912 ],
    name: IdentifierObject {
      pos: 199,
      end: 211,
      flags: 0,
      modifierFlagsCache: 0,
      transformFlags: 536870912,
      parent: [Circular],
      escapedText: 'IdInterface',
      flowNode: [Object]
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    typeParameters: undefined,
    heritageClauses: undefined,
    members: [
      [NodeObject],
      [NodeObject],
      pos: 213,
      end: 251,
      transformFlags: 536870913
    ],
    symbol: SymbolObject {
      flags: 64,
      escapedName: 'IdInterface',
      declarations: [Array],
      members: [Map],
      parent: [SymbolObject],
      id: 40981,
      isReferenced: 788968
    },
    localSymbol: SymbolObject {
      flags: 0,
      escapedName: 'IdInterface',
      declarations: [Array],
      parent: undefined,
      exportSymbol: [SymbolObject]
    },
    nextContainer: NodeObject {
      pos: 253,
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      flags: 0,
      modifierFlagsCache: 536870913,
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      typeParameters: undefined,
      heritageClauses: undefined,
      members: [Array],
      symbol: [SymbolObject],
      localSymbol: [SymbolObject],
      nextContainer: [NodeObject]
    }
  },
  identifiers: [
    IdentifierObject {
      pos: 199,
      end: 211,
      flags: 0,
      modifierFlagsCache: 0,
      transformFlags: 536870912,
      parent: [NodeObject],
      escapedText: 'IdInterface',
      flowNode: [Object]
    }
  ],
  synthetic: false,
  _alias: null,
  bestGuessOwningModule: {
    specifier: '@marcj/glut-core',
    resolutionContext: '/Users/marc/bude/deepkit/packages/deepkit/src/app/components/SimpleTableComponent.ts'
  }
} SourceFileObject {
  pos: 0,
  end: 0,
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  parent: undefined,
  kind: 285,
  text: '',
  bindDiagnostics: [],
  bindSuggestionDiagnostics: undefined,
  languageVersion: 99,
  fileName: '/Users/marc/bude/deepkit/packages/deepkit/src/__ng_typecheck__.ts',
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  scriptKind: 3,
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  nodeCount: 2,
 92      * name of the targeted declaration, as it might be different from the declared name (e.g. a
  identifierCount: 0,
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} 0

As we can see the IdInterface is a interface only. This is used in following component like so:

import {
    Collection,
    IdInterface,
} from '@marcj/glut-core';

export class SimpleTableComponent<T extends IdInterface> implements AfterViewInit, OnChanges, OnDestroy {
    @Input() public items!: T[] | Collection<T>;

   //snap
}

🌍 Your Environment

Angular CLI: 9.0.0-rc.8
Node: 12.14.1
OS: darwin x64

Angular: 9.0.0-rc.9
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Ivy Workspace: Yes

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.900.0-rc.8
@angular-devkit/build-angular     0.900.0-rc.8
@angular-devkit/build-optimizer   0.900.0-rc.8
@angular-devkit/build-webpack     0.900.0-rc.8
@angular-devkit/core              9.0.0-rc.8
@angular-devkit/schematics        9.0.0-rc.8
@angular/cdk                      9.0.0-rc.7
@angular/cli                      9.0.0-rc.8
@angular/http                     7.2.15
@ngtools/webpack                  9.0.0-rc.8
@schematics/angular               9.0.0-rc.8
@schematics/update                0.900.0-rc.8
rxjs                              6.5.3
typescript                        3.6.4
webpack                           4.41.2

Anything else relevant?

[JoostK]

No need for a repro, I see what's going on here! It's indeed a bug introduced in #34021.

[JoostK]

To workaround the issue you could change the SimpleTableComponent as follows:

export type IdInterface_Ng34837 = IdInterface;
export class SimpleTableComponent<T extends IdInterface_Ng34837 >

Introducing the local type alias prevents the type emitter from kicking in, avoiding the issue.

[marcj]

@JoostK wonderful, thanks!

[surenrao]

To workaround the issue you could change the SimpleTableComponent as follows:

export type IdInterface_Ng34837 = IdInterface;
export class SimpleTableComponent<T extends IdInterface_Ng34837 >

Introducing the local type alias prevents the type emitter from kicking in, avoiding the issue.

This error happened for me for 9.0.0-rc.14
and adding local type alias fixed the issue

[JoostK]

@surenrao The fix will be part of the next release, it just missed rc.14

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