bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Allow 0 or 1 explicit generator parameters

Browse source
This commit is contained in:
Jonas Schievink 2020-01-25 02:28:41 +01:00
parent 8a1227a67b
commit 32005fe195
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/librustc_ast_lowering/expr.rs
View file

@ -688,12 +688,12 @@ impl<'hir> LoweringContext<'_, 'hir> {
) -> Option<hir::Movability> { ) -> Option<hir::Movability> {
match generator_kind { match generator_kind {
Some(hir::GeneratorKind::Gen) => { Some(hir::GeneratorKind::Gen) => {
if !decl.inputs.is_empty() { if decl.inputs.len() > 1 {
struct_span_err!( struct_span_err!(
self.sess, self.sess,
fn_decl_span, fn_decl_span,
E0628, E0628,
"generators cannot have explicit parameters" "too many parameters for generator (expected 0 or 1 parameters)"
) )
.emit(); .emit();
} }