[jira] [Created] (ARROW-10794) Typescript Arrowjs Class 'RecordBatch' incorrectly extends base class 'StructVector

["vikash (Jira)" <ji...@apache.org>]

vikash created ARROW-10794:
------------------------------

             Summary: Typescript Arrowjs Class 'RecordBatch<T>' incorrectly extends base class 'StructVector<T>
                 Key: ARROW-10794
                 URL: https://issues.apache.org/jira/browse/ARROW-10794
             Project: Apache Arrow
          Issue Type: Bug
          Components: JavaScript
    Affects Versions: 2.0.0
            Reporter: vikash
         Attachments: Screenshot_1.png

i  am  trying  to  use apache-arrow  js  in  angular typescript version 
4.0.2 ,for that  i have  seen  issues  in  Typescript  failed  to  compile
 steps  to  reprodcue
---------------------
1) install  angular cli  npm install -g @angular/cli
2) create  new  project  using ng new my-app
3) install apache  arrow  using  npm install apache-arrow
4) file  app.componenet.ts have  added below code
```
import \{ Component } from '@angular/core';
import \{ Table } from 'apache-arrow';
import \{ readFileSync } from 'fs';
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'arrow-typescript';
   arrow = readFileSync('simple.arrow');
 table = Table.from([this.arrow]);
}
```
 
but  when  i  am  using  npm  run  build  its  failed  with  below  error

Error: node_modules/apache-arrow/recordbatch.d.ts:17:18 - error TS2430: Interface 'RecordBatch<T>' incorrectly extends interface 'StructVector<T>'.
 The types of 'slice(...).clone' are incompatible between these types.
 Type '(data: Data<Struct<T>>, children?: AbstractVector<any>[] | undefined) => RecordBatch<T>' is not assignable to type '<R extends DataType<Type, any> = Struct<T>>(data: Data<R>, children?: AbstractVector<R>[] | undefined) => VectorType<R>'.
 Types of parameters 'data' and 'data' are incompatible.
 Type 'Data<R>' is not assignable to type 'Data<Struct<T>>'.
 Type 'R' is not assignable to type 'Struct<T>'.
 Property 'dataTypes' is missing in type 'DataType<Type, any>' but required in type 'Struct<T>'.

17 export interface RecordBatch<T extends {
 ~~~~~~~~~~~

node_modules/apache-arrow/type.d.ts:458:5
 458 dataTypes: T;
 ~~~~~~~~~
 'dataTypes' is declared here.
node_modules/apache-arrow/recordbatch.d.ts:24:22 - error TS2415: Class 'RecordBatch<T>' incorrectly extends base class 'StructVector<T>'.

24 export declare class RecordBatch<T extends {
 ~~~~~~~~~~~
node_modules/apache-arrow/ipc/reader.d.ts:236:5 - error TS2717: Subsequent property declarations must have the same type. Property 'schema' must be of type 'Schema<T>', but here has type 'Schema<any>'.

236 schema: Schema;
 ~~~~~~

node_modules/apache-arrow/ipc/reader.d.ts:189:5
 189 schema: Schema<T>;
 ~~~~~~
 'schema' was also declared here.
 
 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)