Avoid ICE when pretty-printing non-local MIR item.#39311
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solson:fix-unpretty-mir-non-local
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Avoid ICE when pretty-printing non-local MIR item.#39311bors merged 1 commit intorust-lang:masterfrom solson:fix-unpretty-mir-non-local
bors merged 1 commit intorust-lang:masterfrom
solson:fix-unpretty-mir-non-local
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eddyb
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Jan 26, 2017
src/librustc_mir/pretty.rs
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Oops... I've built up too much of a reflex going from in collection to in collection.into_iter().foo().
This comes up when using `-Zunstable-options --unpretty=mir`. Previously, rustc would ICE due to an unwrap later in this function (after `as_local_node_id`). Instead, we should just ignore items from other crates when pretty-printing MIR.
eddyb
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@bors r+ rollup |
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…r=eddyb Avoid ICE when pretty-printing non-local MIR item. This comes up when using `-Zunstable-options --unpretty=mir`. Previously, rustc would ICE due to an unwrap later in this function (after `as_local_node_id`). Instead, we should just ignore items from other crates when pretty-printing MIR. This was reported in #rust: [this playground code](https://is.gd/PSMBZS) causes an ICE if you click the MIR button. The problem is the mention of the non-local item `std::usize::MAX`, so you can reduce the test case [a lot](https://is.gd/SaLjaa). r? @eddyb
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This comes up when using
-Zunstable-options --unpretty=mir. Previously, rustc would ICE due to an unwrap later in this function (afteras_local_node_id). Instead, we should just ignore items from other crates when pretty-printing MIR.This was reported in #rust: this playground code causes an ICE if you click the MIR button. The problem is the mention of the non-local item
std::usize::MAX, so you can reduce the test case a lot.r? @eddyb