Remove special handling of obsolete impl Trait for .. syntax#121072
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nnethercote wants to merge 1 commit intorust-lang:masterfrom
Closed
Remove special handling of obsolete impl Trait for .. syntax#121072nnethercote wants to merge 1 commit intorust-lang:masterfrom
impl Trait for .. syntax#121072nnethercote wants to merge 1 commit intorust-lang:masterfrom
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The ancient (pre-1.0) RFC 19 suggested using
impl Trait for ..syntax for default traits. That was later changed toauto trait Trait {}syntax. The parser has special treatment for the..syntax, suggesting theautosyntax.Given that default traits have not be stabilized and the
..syntax is so old, the special case seems unnecessary, and it gets in the way of addingErrorGuaranteedtoTyKind::Err. This commit removes it and the tests.r? @oli-obk