[jira] [Resolved] (ARROW-4395) ts-node throws type error running `bin/arrow2csv.js`

["Krisztian Szucs (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-4395?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Krisztian Szucs resolved ARROW-4395.
------------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 0.4.0)
                   0.13.0

Issue resolved by pull request 3504
[https://github.com/apache/arrow/pull/3504]

> ts-node throws type error running `bin/arrow2csv.js`
> ----------------------------------------------------
>
>                 Key: ARROW-4395
>                 URL: https://issues.apache.org/jira/browse/ARROW-4395
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: JavaScript
>    Affects Versions: 0.4.0
>            Reporter: Paul Taylor
>            Assignee: Paul Taylor
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.13.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> ts-node is being too strict, throws this (inaccurate) error JIT'ing the TS source:
> {code:none}
> $ cat test/data/cpp/stream/simple.arrow | ./bin/arrow2csv.js 
> /home/ptaylor/dev/arrow/js/node_modules/ts-node/src/index.ts:228
>     return new TSError(diagnosticText, diagnosticCodes)
>            ^
> TSError: ⨯ Unable to compile TypeScript:
> src/vector/map.ts(25,57): error TS2345: Argument of type 'Field<T[string | number | symbol]>[]' is not assignable to parameter of type 'Field<T[keyof T]>[]'.
>   Type 'Field<T[string | number | symbol]>' is not assignable to type 'Field<T[keyof T]>'.
>     Type 'T[string] | T[number] | T[symbol]' is not assignable to type 'T[keyof T]'.
>       Type 'T[symbol]' is not assignable to type 'T[keyof T]'.
>         Type 'DataType<Type, any>' is not assignable to type 'T[keyof T]'.
>           Type 'symbol' is not assignable to type 'keyof T'.
>             Type 'symbol' is not assignable to type 'string | number'.
> {code}



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