microsoft / microsoft/TypeScript
Better display representation for intersection types
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Description
I'm not sure if this has been discussed before, but join types are mostly unreadable. I think the type should be prettified somehow before being displayed to the user.
TypeScript Version:
1.8
Code
type T1 = {};
type T2 = {test: number};
type J = T1 & T2;
Expected behavior:
var x: J;
typeof x; // {test: number}
Actual behavior:
var x: J;
typeof x; // {} & {test: number}
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the supplied T1/T2/J example with TypeScript 1.8 and compare the displayed typeof x result. No file or test is named, so trace the compiler path responsible for displaying intersection types; done means the example displays {test: number} as expected.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 39/100