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Panic on double tuple indexing #4494

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1c7718e7 opened this issue Oct 26, 2020 · 1 comment
Closed

Panic on double tuple indexing #4494

1c7718e7 opened this issue Oct 26, 2020 · 1 comment
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bug Panic, non-idempotency, invalid code, etc. duplicate

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@1c7718e7
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Describe the bug

Rustfmt panics when formatting perfectly valid, stable Rust code.

To Reproduce

Run rustfmt on:

const y: () = x.0.1; // whether x is defined does not matter.

Bug is triggered inside any expressions, not just const declarations.

Expected behavior

Rustfmt does not panic.

Meta

  • rustfmt version: rustfmt 1.4.22-nightly (97d0301 2020-10-04)
  • From where did you install rustfmt?: rustup
  • How do you run rustfmt: cargo-fmt, but bug is also reproducible by running rustfmt directly
@1c7718e7 1c7718e7 added the bug Panic, non-idempotency, invalid code, etc. label Oct 26, 2020
@calebcartwright
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Duplicate of #4355, resolved in the upcoming 1.4.23 release

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@calebcartwright @1c7718e7