Feature gate 'yield $expr?' pre-expansion #63545
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Rollup of 5 pull requests Successful merges: - #63173 (Use libunwind from llvm-project submodule for musl targets) - #63462 (Opaque builtin derive macros) - #63539 (Suggest Rust 2018 on `<expr>.await` with no such field) - #63545 (Feature gate 'yield $expr?' pre-expansion) - #63584 (libcore: more cleanups using `#![feature(associated_type_bounds)]`) Failed merges: r? @ghost
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Feature gate 'yield $expr?' pre-expansion Also improve the overall ergonomics of pre-expansion gating in general. r? @Zoxc
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Rollup of 6 pull requests Successful merges: - #63149 (resolve: Populate external modules in more automatic and lazy way) - #63545 (Feature gate 'yield $expr?' pre-expansion) - #63548 (Update rustc-demangle to 0.1.16.) - #63558 (Remap paths for proc-macro crates.) - #63641 (add git keyword to submodule comments in config.example.toml) - #63642 (Rename overflowing_{add,sub,mul} intrinsics to wrapping_{add,sub,mul}.) Failed merges: r? @ghost
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☔ The latest upstream changes (presumably #63648) made this pull request unmergeable. Please resolve the merge conflicts. |
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Would this not break stable code as macros on stable could transform yield syntax to syntax supported on stable rust? |
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@carllerche Attribute and declarative macros on stable should not take advantage of the stability hole (i.e. bug -- see rust-lang/rfcs#2405) in the language that post-expansion gating was. If you want to conditionally rely on unstable syntax, use |
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Ok, sorry. I did not realize it was considered a stability hole. |
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@carllerche Np, thanks for asking. :) |
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Also improve the overall ergonomics of pre-expansion gating in general.
r? @Zoxc