refactor(rustc_expand::mbe): Don't require full ExtCtxt when not necessary #128798
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Rollup of 7 pull requests Successful merges: - rust-lang#128520 (Skip over args when determining if async-closure's inner coroutine consumes its upvars) - rust-lang#128552 (Emit an error for invalid use of the `#[no_sanitize]` attribute) - rust-lang#128691 (Update `compiler-builtins` to 0.1.117) - rust-lang#128702 (Add -Zmetrics-dir=PATH to save diagnostic metadata to disk) - rust-lang#128797 (Fuchsia Test Runner: enable ffx repository server) - rust-lang#128798 (refactor(rustc_expand::mbe): Don't require full ExtCtxt when not necessary) - rust-lang#128800 (Add tracking issue to core-pattern-type) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#128798 - futile:refactor/mbe-diagnostics, r=petrochenkov refactor(rustc_expand::mbe): Don't require full ExtCtxt when not necessary Refactor `mbe::diagnostics::failed_to_match_macro()` to not require a full `ExtCtxt`, but only a `&ParseSess`. It hard-required the `ExtCtxt` only for a call to `cx.trace_macros_diag()`, which we move instead to the only call-site of the function. Note: This could be a potential change in observed behavior, because a call to `cx.trace_macros_diag()` now always happens after `failed_to_match_macro()` was called, where before it was only called at the end of the main return path of the function. But since `trace_macros_diag()` "flushes" out any not-yet-reported errors, it should be ok to call it for all paths, since there shouldn't be any on the non-main paths I think. However, I don't know the rest of the codebase well enough to say that with 100% confidence, but `tests/ui` still pass, which gives at least some confidence in the change. Also concretize the return type from `Box<dyn MacResult>` to `(Span, ErrorGuaranteed)`, because this function will _always_ return an error, and never any other kind of result. Was part of rust-lang#128605 and rust-lang#128747, but is a standalone refactoring. r? ``@petrochenkov``
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Refactor
mbe::diagnostics::failed_to_match_macro()to not require a fullExtCtxt, but only a&ParseSess. It hard-required theExtCtxtonly for a call tocx.trace_macros_diag(), which we move instead to the only call-site of the function.Note: This could be a potential change in observed behavior, because a call to
cx.trace_macros_diag()now always happens afterfailed_to_match_macro()was called, where before it was only called at the end of the main return path of the function. But sincetrace_macros_diag()"flushes" out any not-yet-reported errors, it should be ok to call it for all paths, since there shouldn't be any on the non-main paths I think. However, I don't know the rest of the codebase well enough to say that with 100% confidence, buttests/uistill pass, which gives at least some confidence in the change.Also concretize the return type from
Box<dyn MacResult>to(Span, ErrorGuaranteed), because this function will always return an error, and never any other kind of result.Was part of #128605 and #128747, but is a standalone refactoring.
r? @petrochenkov