Rust analyzer marks proc macros as errors

[saadahmsiddiqui]

rust-analyzer version: v0.3.1091

rustc version: rustc 1.61.0 (fe5b13d68 2022-05-18)

When using IntEnum proc macro rust analyzer gives the error:

proc macro IntEnum not expanded rust-analyzer unresolved-proc-macro

[tommyip]

Same here. Seems to be introduced in v0.3.1091 as I don't get it in v0.3.1083.

rustc version: rustc 1.63.0-nightly (490324f7b 2022-05-26)

[bjorn3]

@tommyip Try updating rustc. There was a proc macro abi breaking change on nightly recently
You are using a rustc version from before this change, while rust-analyzer attempts to use the abi from after this change.

[tommyip]

@tommyip Try updating rustc. There was a proc macro abi breaking change on nightly recently
You are using a rustc version from before this change, while rust-analyzer attempts to use the abi from after this change.

Fixed after updating rustc to rustc 1.63.0-nightly (1f34da9ec 2022-06-14). Thanks @bjorn3.

[bjorn3]

@saadjhk uses stable rustc which is unaffected by the abi breaking change that was the problem for @\tommyip.

[dreamerlzl]

Same problem with rust-analyzer 2022-06-06, rustc 1.63.0-nightly (b31f9cc22 2022-06-15).
I am using neovim with lsp.

[flodiebold]

@dreamerlzl you need a newer version of rust-analyzer to get support for this rustc nightly.

[flodiebold]

@saadjhk Please try the current nightly; it should show a more detailed error message.

Install the latest version of rust-analyzer. If you are using VSCode, download the .vsix file in releases and install it by using the Extensions => Install from VSIX feature, since it seems to be not available in the marketplace yet.

[flodiebold]

As far as I can tell, the pre-release in the marketplace is from yesterday and does contain the relevant commits.

Member

** flodiebold ** commented 2 hours ago

That's strange, for me it have this issue of proc macros not being expanded, while the VSIX does not.

[flodiebold]

@eexsty Are you using VSCode or VSCodium?