TypeScript Error TS2590: Expression produces a union type that is too complex to represent. #1034
Description
Since Execa 9.0.0, when using TypeScript 5.1 or later, the following type error appears:
types/subprocess/stdout.d.ts:18:4 - error TS2590: Expression produces a union type that is too complex to represent.
18 : InputOutputStream<IsInputFd<FdNumber, OptionsType>>;
Or:
types/return/result-stdout.d.ts:33:4 - error TS2590: Expression produces a union type that is too complex to represent.
33 : ResultStdioItem<
34 IsObjectFd<ObjectFdNumber, OptionsType>,
...
36 OptionsType['encoding']
37 >;
Apparently the error is not emitted when using tsd, only when using tsc, which is why our type tests did not catch this.