Allow AST and HIR visitors to return ControlFlow
#121256
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r? @oli-obk |
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@bors r+ rollup yea this seems like the best solution going forward. |
saethlin
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Feb 20, 2024
Allow AST and HIR visitors to return `ControlFlow` Alternative to rust-lang#108598. Since rust-lang/libs-team#187 was rejected, this implements our own version of the `Try` trait (`VisitorResult`) and the `try` macro (`try_visit`). Since this change still allows visitors to return `()`, no changes have been made to the existing ones. They can be done in a separate PR.
bors
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Feb 20, 2024
Rollup of 8 pull requests Successful merges: - rust-lang#120718 (Add "algebraic" fast-math intrinsics, based on fast-math ops that cannot return poison) - rust-lang#121195 (unstable-book: Separate testing and production sanitizers) - rust-lang#121205 (Merge `CompilerError::CompilationFailed` and `CompilerError::ICE`.) - rust-lang#121233 (Move the extra directives for `Mode::CoverageRun` into `iter_header`) - rust-lang#121256 (Allow AST and HIR visitors to return `ControlFlow`) - rust-lang#121307 (Drive-by `DUMMY_SP` -> `Span` and fmt changes) - rust-lang#121310 (Remove an old hack for rustdoc) - rust-lang#121311 (Make `is_nonoverlapping` `#[inline]`) r? `@ghost` `@rustbot` modify labels: rollup
bors
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Feb 20, 2024
Rollup of 10 pull requests Successful merges: - rust-lang#120716 (Change leak check and suspicious auto trait lint warning messages) - rust-lang#121195 (unstable-book: Separate testing and production sanitizers) - rust-lang#121205 (Merge `CompilerError::CompilationFailed` and `CompilerError::ICE`.) - rust-lang#121233 (Move the extra directives for `Mode::CoverageRun` into `iter_header`) - rust-lang#121256 (Allow AST and HIR visitors to return `ControlFlow`) - rust-lang#121307 (Drive-by `DUMMY_SP` -> `Span` and fmt changes) - rust-lang#121308 (Add regression test for rust-lang#103369) - rust-lang#121310 (Remove an old hack for rustdoc) - rust-lang#121311 (Make `is_nonoverlapping` `#[inline]`) - rust-lang#121319 (return `ty::Error` when equating `ty::Error`) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
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Rollup merge of rust-lang#121256 - Jarcho:visitor2, r=oli-obk Allow AST and HIR visitors to return `ControlFlow` Alternative to rust-lang#108598. Since rust-lang/libs-team#187 was rejected, this implements our own version of the `Try` trait (`VisitorResult`) and the `try` macro (`try_visit`). Since this change still allows visitors to return `()`, no changes have been made to the existing ones. They can be done in a separate PR.
scottmcm
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Feb 23, 2024
| pub trait VisitorResult { | ||
| type Residual; | ||
| fn output() -> Self; | ||
| fn from_residual(residual: Self::Residual) -> Self; |
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Man, I wish the real Try could be this simple, but no, we're stuck with error conversion support :(
The simpler one is definitely the right choice for this visitor, though 👍
This was referenced Feb 24, 2024
GuillaumeGomez
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Mar 4, 2024
Convert the rest of the visitors to use `VisitorResult` Continuing from rust-lang#121256.
bors
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Mar 5, 2024
Convert the rest of the visitors to use `VisitorResult` Continuing from rust-lang#121256.
matthiaskrgr
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Mar 8, 2024
Use `ControlFlow` in visitors. Follow up to rust-lang#121256 This does have a few small behaviour changes in some diagnostic output where the visitor will now find the first match rather than the last match. The change in `find_anon_types.rs` has the only affected test. I don't see this being an issue as the last occurrence isn't any better of a choice than the first.
rust-timer
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Mar 8, 2024
Rollup merge of rust-lang#121563 - Jarcho:use_cf, r=petrochenkov Use `ControlFlow` in visitors. Follow up to rust-lang#121256 This does have a few small behaviour changes in some diagnostic output where the visitor will now find the first match rather than the last match. The change in `find_anon_types.rs` has the only affected test. I don't see this being an issue as the last occurrence isn't any better of a choice than the first.
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Alternative to #108598.
Since rust-lang/libs-team#187 was rejected, this implements our own version of the
Trytrait (VisitorResult) and thetrymacro (try_visit). Since this change still allows visitors to return(), no changes have been made to the existing ones. They can be done in a separate PR.