6491: Textmate grammar: allow variables to terminate ranges r=dustypomerleau a=dustypomerleau
Variables were originally designed not to match after a dot, in order to avoid matching struct field access, however this resulted in variables that end ranges not being highlighted. In order to fix this we match a preceding dot, only if it's preceded by at least one other dot. Attempting to match on `(\.{2,})?` won't work, because the optional group allows struct field access to match even when one dot is present.
Co-authored-by: Dusty Pomerleau <dustypomerleau@users.noreply.github.com>
6490: Minimize convert_integer_literal tests r=matklad a=m-ysk
Closes#6455
This PR removes some redundant tests around convert_integer_literal.
First, it removes test cases about converting integer with underscores except for just one case. This is because the process of removing of underscores in given integer literals is independent from radix.
Second, as well as underscore cases, it removes test cases about converting integer with suffix except for just one case. This is because the process of handling suffix is independent from radix.
Finally, it removes small decimal integer cases. This is because "special case where they return early" has been removed by the PR #6482, so we have no need to retain this cases.
Co-authored-by: m-ysk <myskjp@gmail.com>
6489: Textmate grammar: Precedence fixes r=dustypomerleau a=dustypomerleau
- prevent `pat` from matching before `path` in metavariable types
- reduce the precedence of math operators so that assignment operators match correctly
Co-authored-by: Dusty Pomerleau <dustypomerleau@users.noreply.github.com>
- prevent `pat` from matching before `path` in metavariable types
- reduce the precedence of math operators so that assignment operators match correctly
6477: Add infer_function_return_type assist r=matklad a=Veykril
This adds an assist to insert a functions return type if it hasn't been specified yet by inferring it from the functions tail expression. This assist only becomes active if the cursor is on the tail expression. See https://github.com/rust-analyzer/rust-analyzer/issues/6303#issuecomment-714657326
Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
Folks report a ton of hard-to-diagnose issues, the solution for which
is "unset RUST_SRC_PATH". Let's just ignore RUST_SRC_PATH when it
won't work anyway!
6470: Restore semantic token flickering workaround removed in #5697 r=kjeremy a=charlespierce
Closes#6452
Info
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* As discussed in #6452, the `Error('busy')` workaround for semantic token flickering was removed because the underlying issue was believed to be fixed in VS Code.
* It turns out that the fix isn't yet complete, so this caused flickering of the semantic highlighting when making rapid edits (e.g. typing quickly).
* This PR restores that workaround and makes it slightly more robust, covering all areas of semantic token middleware.
Changes
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* Added middleware functions for `provideDocumentSemanticTokens`, `provideDocumentSemanticTokensEdits`, and `provideDocumentRangeSemanticTokens` to match the 3 possible middleware hooks defined in https://github.com/microsoft/vscode-languageserver-node/blob/master/client/src/common/semanticTokens.ts#L33
* Each intercepts a `null` or `undefined` return and throws an error with the message `busy` instead, which prevents the tokens from being removed and re-added (causing the flickering behavior)
Tested
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* Tested locally that the flickering behavior is gone.
* There don't appear to be any significant tests of the VS Code plugin side of things, other than that it loads. Is there somewhere I can / should add tests to cover this behavior?
Co-authored-by: Charles Pierce <cpierce.grad@gmail.com>
