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Abi::is_signed: assert that we are a Scalar #70189

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merged 1 commit into from
Mar 21, 2020
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A bit more sanity checking, suggested by @eddyb. This makes this method actually "safer" than TyS::is_signed, so I made sure Miri consistently uses the Abi version.

Though I am not sure if this would have caught the mistake where the layout of a zero-sized enum was asked for its sign.

r? @eddyb

@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Mar 20, 2020
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eddyb commented Mar 20, 2020

@bors r+ I guess this is fine.

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bors commented Mar 20, 2020

📌 Commit 5930da4 has been approved by eddyb

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Mar 20, 2020
Centril added a commit to Centril/rust that referenced this pull request Mar 21, 2020
Abi::is_signed: assert that we are a Scalar

A bit more sanity checking, suggested by @eddyb. This makes this method actually "safer" than `TyS::is_signed`, so I made sure Miri consistently uses the `Abi` version.

Though I am not sure if this would have caught the mistake where the layout of a zero-sized enum was asked for its sign.

r? @eddyb
bors added a commit to rust-lang-ci/rust that referenced this pull request Mar 21, 2020
Rollup of 16 pull requests

Successful merges:

 - rust-lang#65097 (Make std::sync::Arc compatible with ThreadSanitizer)
 - rust-lang#69033 (Use generator resume arguments in the async/await lowering)
 - rust-lang#69997 (add `Option::{zip,zip_with}` methods under "option_zip" gate)
 - rust-lang#70038 (Remove the call that makes miri fail)
 - rust-lang#70058 (can_begin_literal_maybe_minus: `true` on `"-"? lit` NTs.)
 - rust-lang#70111 (BTreeMap: remove shared root)
 - rust-lang#70139 (add delay_span_bug to TransmuteSizeDiff, just to be sure)
 - rust-lang#70165 (Remove the erase regions MIR transform)
 - rust-lang#70166 (Derive PartialEq, Eq and Hash for RangeInclusive)
 - rust-lang#70176 (Add tests for rust-lang#58319 and rust-lang#65131)
 - rust-lang#70177 (Fix oudated comment for NamedRegionMap)
 - rust-lang#70184 (expand_include: set `.directory` to dir of included file.)
 - rust-lang#70187 (more clippy fixes)
 - rust-lang#70188 (Clean up E0439 explanation)
 - rust-lang#70189 (Abi::is_signed: assert that we are a Scalar)
 - rust-lang#70194 (#[must_use] on split_off())

Failed merges:

r? @ghost
@bors bors merged commit 937ca43 into rust-lang:master Mar 21, 2020
@RalfJung RalfJung deleted the is_signed branch March 21, 2020 09:41
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4 participants