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Handle panicking like rustc CTFE does by Nilstrieb · Pull Request #16935 · rust-...
source link: https://github.com/rust-lang/rust-analyzer/pull/16935
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Instead of using core::fmt::format to format panic messages, which may in turn panic too and cause recursive panics and other messy things, redirect panic_fmt to const_panic_fmt like CTFE, which in turn goes to panic_display and does the things normally. See the tests for the full call stack.
The tests don't work yet, I probably missed something in minicore.
fixes #16907 in my local testing, I also need to add a test for it
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