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Is it possible to display the backtrace when a proc macro panics? #17563

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JohnScience opened this issue Jul 8, 2024 · 1 comment
Open

Is it possible to display the backtrace when a proc macro panics? #17563

JohnScience opened this issue Jul 8, 2024 · 1 comment
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A-proc-macro proc macro C-support Category: support questions

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@JohnScience
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JohnScience commented Jul 8, 2024 •
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I use rust-analyzer via an extension for VS Code.

I'd like to be able to see the backtrace for the panic that happened during macro expansion.

Capture

How can I make it happen?

P.S.

I'd like to get the backtrace so that I can see the line where the panic occurred and where in the call stack the problem was introduced.
@JohnScience JohnScience added the C-support Category: support questions label Jul 8, 2024
@Veykril Veykril added the A-proc-macro proc macro label Jul 11, 2024
@Veykril
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Veykril commented Jul 11, 2024

Not right now. I don't know if we can install a panic handler that captures the backtrace for us to send back to the server in the error message

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