Pylance-release: Call Hierarchy

[GuSuku]

This popular feature request is best described within the documentation of LSP, but here is a summary:

A Call Hierarchy shows all calls from or to a function and allows you to drill into callers of callers and calls of calls.

This is currently available for JS/TS and Java language extension.

The only issue (https://github.com/microsoft/vscode-python/issues/5127) tracking this in python language extension has been closed citing an existing upstream feature.

But the reason sounds a little inconsistent (see my comment at cited upstream issue https://github.com/microsoft/python-language-server/issues/888)

[jakebailey]

Pylance has call hierarchy support already. I'll close this as done, but we're happy to take feedback on this feature.

[jahan01]

@jakebailey actually i am never able to get call hierarchy for any python code. Is there an additional setting required ?

[jakebailey]

I'll open this until we can go verify that this is/isn't working as expected.

[jahan01]

Call hierarchy works since last update (not sure whether it was after vscode update or pylance update)

[huguesv]

@jahan01 you're right, it looks like it was fixed in the python extension 2020.7.94776

[GuSuku]

Works now. Both incoming calls and outgoing calls are showing up. Thanks!