diff options
Diffstat (limited to 'src/cmd/compile/internal/types/type.go')
| -rw-r--r-- | src/cmd/compile/internal/types/type.go | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/cmd/compile/internal/types/type.go b/src/cmd/compile/internal/types/type.go index 31a99781d1..762cdd3258 100644 --- a/src/cmd/compile/internal/types/type.go +++ b/src/cmd/compile/internal/types/type.go @@ -1643,7 +1643,10 @@ var ( TypeResultMem = newResults([]*Type{TypeMem}) ) -// NewNamed returns a new named type for the given type name. obj should be an ir.Name. +// NewNamed returns a new named type for the given type name. obj should be an +// ir.Name. The new type is incomplete, and the underlying type should be set +// later via SetUnderlying(). References to the type are maintained until the type +// is filled in, so those references can be updated when the type is complete. func NewNamed(obj Object) *Type { t := New(TFORW) t.sym = obj.Sym() @@ -1659,7 +1662,8 @@ func (t *Type) Obj() Object { return nil } -// SetUnderlying sets the underlying type. +// SetUnderlying sets the underlying type. SetUnderlying automatically updates any +// types that were waiting for this type to be completed. func (t *Type) SetUnderlying(underlying *Type) { if underlying.kind == TFORW { // This type isn't computed yet; when it is, update n. |