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Expected type panic in parsing array type #39616

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leonardo-m opened this issue Feb 7, 2017 · 3 comments · Fixed by #39674
Closed

Expected type panic in parsing array type #39616

leonardo-m opened this issue Feb 7, 2017 · 3 comments · Fixed by #39674
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@jseyfried
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I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ regression-from-stable-to-beta Performance or correctness regression from stable to beta.

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@leonardo-m
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leonardo-m commented Feb 7, 2017 •
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fn foo(a: [0; 1]) {}
fn main() {}

nightly-x86_64-pc-windows-gnu, rustc 1.17.0-nightly (ea7a648 2017-02-04)

error: expected type, found `0`
 --> test.rs:1:12
  |
1 | fn foo(a: [0; 1]) {}
  |            ^


error: internal compiler error: unexpected panic
note: the compiler unexpectedly panicked. this is a bug.

thread 'rustc' panicked at 'internal error: entered unreachable code', C:\bot\slave\nightly-dist-rustc-win-gnu-64\build\src\libsyntax\parse\parser.rs:2649
@petrochenkov
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Stable -> beta regression.

@sfackler sfackler added I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ regression-from-stable-to-beta Performance or correctness regression from stable to beta. labels Feb 7, 2017
@estebank
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estebank commented Feb 7, 2017 •
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Seems like it might have been introduced in #39118.

Cc @jseyfried

@jseyfried jseyfried self-assigned this Feb 8, 2017
@jseyfried jseyfried mentioned this issue Feb 9, 2017
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@jseyfried
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Fixed in #39674.

frewsxcv added a commit to frewsxcv/rust that referenced this issue Feb 10, 2017
@frewsxcv
Rollup merge of rust-lang#39674 - jseyfried:fix_token_tree_parsing_IC…
ed7f3c4 
…E, r=nrc

parser: fix ICE when parsing token trees after an error

Fixes rust-lang#39388, fixes rust-lang#39616.
r? @nrc
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I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ regression-from-stable-to-beta Performance or correctness regression from stable to beta.
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parser: fix ICE when parsing token trees after an error jseyfried/rust
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@sfackler @estebank @petrochenkov @jseyfried @leonardo-m