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| author | Robert Griesemer <gri@google.com> | 2025-10-15 11:27:17 -0700 |
|---|---|---|
| committer | Robert Griesemer <gri@google.com> | 2025-10-15 13:46:26 -0700 |
| commit | 31f82877e85a7e6c70b0104e704abfed622e345f (patch) | |
| tree | c2889d1eec9ff1990d2b20aa53fde494551c4bc4 /src/cmd/compile | |
| parent | 6346349f5629a5767d2cd132f01092857a570bd2 (diff) | |
| download | go-31f82877e85a7e6c70b0104e704abfed622e345f.tar.xz | |
go/types, types2: fix misleading internal comment
See also the discussion in #75885.
Change-Id: Ieb964ea6ee51600c0c08ecba0af50a1deb209a4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/712141
Reviewed-by: Mark Freeman <markfreeman@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
TryBot-Bypass: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Diffstat (limited to 'src/cmd/compile')
| -rw-r--r-- | src/cmd/compile/internal/types2/decl.go | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/src/cmd/compile/internal/types2/decl.go b/src/cmd/compile/internal/types2/decl.go index 4ebd945407..22fccc1519 100644 --- a/src/cmd/compile/internal/types2/decl.go +++ b/src/cmd/compile/internal/types2/decl.go @@ -575,11 +575,8 @@ func (check *Checker) typeDecl(obj *TypeName, tdecl *syntax.TypeDecl, def *TypeN named.underlying = Typ[Invalid] } - // Disallow a lone type parameter as the RHS of a type declaration (go.dev/issue/45639). - // We don't need this restriction anymore if we make the underlying type of a type - // parameter its constraint interface: if the RHS is a lone type parameter, we will - // use its underlying type (like we do for any RHS in a type declaration), and its - // underlying type is an interface and the type declaration is well defined. + // spec: "In a type definition the given type cannot be a type parameter." + // (See also go.dev/issue/45639.) if isTypeParam(rhs) { check.error(tdecl.Type, MisplacedTypeParam, "cannot use a type parameter as RHS in type declaration") named.underlying = Typ[Invalid] |