matrix-org / matrix-org/matrix-js-sdk

Switch away from using method-defined `interface`s for base-class definition

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#2,114 7 comments 0 reactions 0 assignees View on GitHub

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TypeScript
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Description

interface ClassInterface {
    callable(f: string | number): void;
}

class Thing implements ClassInterface {
    public callable(f: string): void {

    }
}

class OtherThing implements ClassInterface {
    public callable(f: number): void {
        
    }
}

Related to https://github.com/matrix-org/matrix-js-sdk/issues/2113, using interfaces can cause above situations, where any person going from an interface definition will possibly draw the wrong conclusions.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the method-defined interfaces and their implementing classes shown in the issue, then read related issue #2113 for context. Done means the base-class contract no longer relies on these interfaces and the resulting declarations accurately communicate each implementation's callable signature.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
developer-experience
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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