Add rule S1874 ('deprecation') for TS

[vilchik-elena]

This is a tricky one, investigate rule implementation before applying it (does it work cross-file?)

[vilchik-elena]

The problem is that import/no-deprecated is able to detect only trivial cases, when deprecated symbol is imported. Still it's not able to resolve deprecated method calls. So we should write our own rule relying on type-checker.
Later we can contribute this rule to typescript-plugin for eslint.

[webmaster128]

Nice work!

Later we can contribute this rule to typescript-plugin for eslint.

Would it be possible to port the rule to https://github.com/typescript-eslint/typescript-eslint? Or would the author and/or copyright holder give permission to directly port to to the BSD-2-Clause licensed typescript-eslint?

[gund]

@webmaster128 I've already asked that question in SonarSource/eslint-plugin-sonarjs#150 a while ago but it seems they are not so active in engaging with OS community here...

To address your question - I've already ported this rule into separate ESlint plugin under LGPL 3 license, so you may want to check that out =)

[snebjorn]

@vilchik-elena I'm also very interested in

Later we can contribute this rule to typescript-plugin for eslint.

[vilchik-elena]

We will try to contribute the rule to typescript-eslint plugin