Prevent relative require completion for unsaved files #3656
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Motivation
If a user is typing a
require_relativein an unsaved file, we have no way of providing completion since we don't know where the user intends to save the file and the path needs to be relative to that.This currently crashes the request, but we can simply protect the code from this and return empty completions.
Implementation
Started returning early if the
full_pathof the URI isnil(which means the file is unsaved and we don't know what the file system path is).Automated Tests
Added a test that reproduces the same crash.