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Control TSC's noEmit or emitDeclarationOnly when using composite projects

See original GitHub issue

create-react-app doesn’t work in composite typescript projects, because for composite projects emitDeclarationOnly must be used instead of noEmit (when using noEmit: true and composite: true typescript compiler throws an error). I suggest to add a check - if typescript project is composite-based, use emitDeclarationOnly flag instead of noEmit.

See https://github.com/microsoft/TypeScript/issues/36917 for more information.

Issue Analytics

State:
Created 4 years ago
Reactions:16
Comments:7

Top GitHub Comments

19reactions

MichaelFroeschencommented, Aug 31, 2020

This is still a thing… I’m kinda getting annoyed by the fact, that some options are forced in such a way, without any explanation…

7reactions

sliktscommented, Mar 4, 2020

Options for incremental builds can look like this:

    "incremental": true,
    "emitDeclarationOnly": true,
    "outDir": ".cache/tsbuild",
    "skipLibCheck": true

Adding support for the incremental option was previously proposed in #6785, but was closed due to the webpack plugin already using incremental builds, but I think that misses the point; it’s also useful to check types with tsc without building, since it’s faster and allows to type check files that aren’t open in an editor.