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[dev.go2go] go/types: the underlying type of a type parameter is itself 

No need to call Under() when we know that we have a type parameter.

While at it: Turn off debug mode.

Change-Id: Ia0b39d88191c8e5ac580e7e84a512061911c40cf
Reviewed-on: https://go-review.googlesource.com/c/go/+/239162
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Robert Griesemer 2020-06-19 20:55:27 -07:00
parent cbdb93d5a7
commit c0c872e8b0
2 changed files with 13 additions and 13 deletions
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2
src/go/types/check.go
View File

@ -15,7 +15,7 @@ import (
)
// debugging/development support
const debug = true // leave on during development
const debug = false // leave on during development
// If forceStrict is set, the type-checker enforces additional
// rules not specified by the Go 1 spec, but which will

24
src/go/types/type.go
View File

@ -836,17 +836,17 @@ func optype(typ Type) Type {
}
// Converter methods
func (t *TypeParam) Basic() *Basic { return optype(t.Under()).Basic() }
func (t *TypeParam) Array() *Array { return optype(t.Under()).Array() }
func (t *TypeParam) Slice() *Slice { return optype(t.Under()).Slice() }
func (t *TypeParam) Struct() *Struct { return optype(t.Under()).Struct() }
func (t *TypeParam) Pointer() *Pointer { return optype(t.Under()).Pointer() }
func (t *TypeParam) Tuple() *Tuple { return optype(t.Under()).Tuple() }
func (t *TypeParam) Signature() *Signature { return optype(t.Under()).Signature() }
func (t *TypeParam) Sum() *Sum { return optype(t.Under()).Sum() }
func (t *TypeParam) Interface() *Interface { return optype(t.Under()).Interface() }
func (t *TypeParam) Map() *Map { return optype(t.Under()).Map() }
func (t *TypeParam) Chan() *Chan { return optype(t.Under()).Chan() }
func (t *TypeParam) Basic() *Basic { return optype(t).Basic() }
func (t *TypeParam) Array() *Array { return optype(t).Array() }
func (t *TypeParam) Slice() *Slice { return optype(t).Slice() }
func (t *TypeParam) Struct() *Struct { return optype(t).Struct() }
func (t *TypeParam) Pointer() *Pointer { return optype(t).Pointer() }
func (t *TypeParam) Tuple() *Tuple { return optype(t).Tuple() }
func (t *TypeParam) Signature() *Signature { return optype(t).Signature() }
func (t *TypeParam) Sum() *Sum { return optype(t).Sum() }
func (t *TypeParam) Interface() *Interface { return optype(t).Interface() }
func (t *TypeParam) Map() *Map { return optype(t).Map() }
func (t *TypeParam) Chan() *Chan { return optype(t).Chan() }
// func (t *TypeParam) Named() *Named // named types are not permitted in type lists
// func (t *TypeParam) TypeParam() *TypeParam // declared below
@ -966,7 +966,7 @@ func (t *Interface) Underlying() Type { return t }
func (t *Map) Underlying() Type { return t }
func (t *Chan) Underlying() Type { return t }
func (t *Named) Underlying() Type { return t.underlying }
func (t *TypeParam) Underlying() Type { return t.Under() }
func (t *TypeParam) Underlying() Type { return t }
func (t *instance) Underlying() Type { return t }
func (t *bottom) Underlying() Type { return t }
func (t *top) Underlying() Type { return t }