Error detecting variable type

[shootingsyh]

Sorry I didn't get a clear repro here.
Here is the file containing the problem: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=073305de6384df0e7ba6e11bdf798189 at line 80.

Or you may download git project at https://github.com/shootingsyh/rxstream, and open vs code with rust plugin and rust-analyser setup. See file with_latest_from.rs.

queued_source is a pin project field, and should be of type Option. When calling the Option::take function, rust-analyser think it is a stream and expect it to have one argument.

[lnicola]

is a pin project field

We don't support proc macros other than custom derives.

[shootingsyh]

It causes an explicit syntax error in the IDE. If proc macro is not supported, should we mark it just as unknown and not issuing an error? 发自我的iPhone

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在 2020年7月27日，上午1:32，Laurențiu Nicola ***@***.***> 写道：  is a pin project field We don't support proc macros other than custom derives. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[lnicola]

It's not a syntax error, but rather a false positive in a "wrong argument count" check. The check can be disabled in the latest release using the rust-analyzer.diagnostics.enableExperimental setting.

[flodiebold]

Closing this as a duplicate of #6029 since it's caused by an unexpanded proc macro attribute.