Paul Taylor created ARROW-4442: ---------------------------------- Summary: [JS] Overly broad type annotation for Chunked typeId leading to type mismatches in generated typing Key: ARROW-4442 URL: https://issues.apache.org/jira/browse/ARROW-4442 Project: Apache Arrow Issue Type: Improvement Components: JavaScript Affects Versions: 0.4.0 Reporter: Paul Taylor Assignee: Paul Taylor
Typescript isĀ generatingĀ an overly broad type for the `typeId` property of the ChunkedVector class, leading to a type mismatch and failure to infer Column<T> is Vector<T>: {code:actionscript} let col: Vector<Utf8>; col = new Chunked(new Utf8()); ^ /* Argument of type 'Chunked<Utf8>' is not assignable to parameter of type 'Vector<Utf8>'. Type 'Chunked<Utf8>' is not assignable to type 'Vector<Utf8>'. Types of property 'typeId' are incompatible. Type 'Type' is not assignable to type 'Type.Utf8'. */ {code} The fix is to add an explicit return annotation to the Chunked typeId getter. -- This message was sent by Atlassian JIRA (v7.6.3#76005)