rust/compiler/rustc_ast_lowering
Stuart Cook 380ad1b5d4
Rollup merge of #138374 - celinval:issue-136925-const-contract, r=compiler-errors,oli-obk,RalfJung
Enable contracts for const functions

Use `const_eval_select!()` macro to enable contract checking only at runtime. The existing contract logic relies on closures, which are not supported in constant functions.

This commit also removes one level of indirection for ensures clauses since we no longer build a closure around the ensures predicate.

Resolves #136925

**Call-out:** This is still a draft PR since CI is broken due to a new warning message for unreachable code when the bottom of the function is indeed unreachable. It's not clear to me why the warning wasn't triggered before.

r? ```@compiler-errors```
2025-04-15 15:47:24 +10:00
..
src Rollup merge of #138374 - celinval:issue-136925-const-contract, r=compiler-errors,oli-obk,RalfJung 2025-04-15 15:47:24 +10:00
Cargo.toml Use -Wunused_crate_dependencies for compiler crates. 2025-03-20 08:59:43 +11:00
messages.ftl Stabilize precise_capturing_in_traits 2025-03-23 14:11:04 +00:00