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| author | Henry Boisdequin <65845077+henryboisdequin@users.noreply.github.com> | 2021-02-09 18:43:39 +0530 |
|---|---|---|
| committer | Henry Boisdequin <65845077+henryboisdequin@users.noreply.github.com> | 2021-02-09 18:43:39 +0530 |
| commit | 4af417a78a1684e2c75b275ee3a0db8049ef8b0f (patch) | |
| tree | 875650c7e7361d0c22c841bfdf76ef386e87ee59 /compiler | |
| parent | 1279b3b9232e4c44112d98f19cfa8846776d1fe8 (diff) | |
| download | rust-4af417a78a1684e2c75b275ee3a0db8049ef8b0f.tar.gz rust-4af417a78a1684e2c75b275ee3a0db8049ef8b0f.zip | |
add suggestion to use the `async_recursion` crate
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_typeck/src/check/check.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_typeck/src/check/check.rs b/compiler/rustc_typeck/src/check/check.rs index ab3c26fac83..f0bc31641b4 100644 --- a/compiler/rustc_typeck/src/check/check.rs +++ b/compiler/rustc_typeck/src/check/check.rs @@ -1446,6 +1446,9 @@ fn async_opaque_type_cycle_error(tcx: TyCtxt<'tcx>, span: Span) { struct_span_err!(tcx.sess, span, E0733, "recursion in an `async fn` requires boxing") .span_label(span, "recursive `async fn`") .note("a recursive `async fn` must be rewritten to return a boxed `dyn Future`") + .note( + "consider using the `async_recursion` crate: https://crates.io/crates/async_recursion", + ) .emit(); } |