prettify complex type display (for generic-heavy types)

[devdoomari3]

Search Terms

Domain: Type Display Bugs relating to showing types in Quick Info/Tooltips, Signature Help, or Completion Info

Suggestion

give indentations + line-changes on type representation. User config for this might be an option.

Examples

suppose I have some generic-heavy function someFunc that returns

const a = someFunc();
// typeof a = RootGeneric<GenericA, GenericB<number, SubGenericB_A<number> ...
//  full type not shown 😭 

A better output can be:

// typeof a = 
RootGeneric<
    GenericA, 
    GenericB<
        number, 
        SubGenericB_A<number> ...

more things:

• editors can implement "expand(+)" buttons ?
  (collapsed-tree-view)

Checklist

My suggestion meets these guidelines:

• This wouldn't be a breaking change in existing TypeScript/JavaScript code
• This wouldn't change the runtime behavior of existing JavaScript code
• This could be implemented without emitting different JS based on the types of the expressions
• This isn't a runtime feature (e.g. library functionality, non-ECMAScript syntax with JavaScript output, etc.)
• This feature would agree with the rest of TypeScript's Design Goals.