fable-compiler
Typescript imports have wrong file extension
Description
When running fable the generated TS files link to JS files that do not exist.
Repro code
https://github.com/dburriss/haya-net/tree/typescript-support/src/Haya.Deno
Note: The deno project is referencing files in another project. Was hoping there was a better way to do this but could not think of anything.
Expected and actual results
When running:
dotnet fable --outDir ./ --lang ts
The generated .ts files contain imports like the following:
import { toString, Record, Union } from "../fable_modules/fable-library-ts.4.24.0/Types.js";
import { bool_type, record_type, string_type, union_type, TypeInfo } from "../fable_modules/fable-library-ts.4.24.0/Reflection.js";
import { IComparable, IEquatable } from "../fable_modules/fable-library-ts.4.24.0/Util.js";
import { StringBuilder__AppendLine, StringBuilder__AppendLine_Z721C83C5, StringBuilder__Append_Z721C83C5, StringBuilder_$ctor_Z721C83C5, StringBuilder_$ctor } from "../fable_modules/fable-library-ts.4.24.0/System.Text.js";
import { FSharpList, fold } from "../fable_modules/fable-library-ts.4.24.0/List.js";
The file ../fable_modules/fable-library-ts.4.24.0/Types.js does not exist though, instead ../fable_modules/fable-library-ts.4.24.0/Types.ts exists (which is what I expect). So the imports are generated expecting .js, when they should be expecting .ts.
Related information
- Fable version: 4.24.0 (was happening on 4.22.0 too)
- Operating system: OSX
Similar to https://github.com/fable-compiler/Fable/issues/3686#issuecomment-1878857962
To allow people consuming Fable => TS with runtimes like Deno we will need to add a new compiler flag.
I would be interested in this. I’m doing a project which uses Supabase at the moment and their Edge Functions use Deno so it would be nice to have the option to use F# with those without too much fiddling around.
