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cmd/compile/internal/types2: rename IsMethodSet to IsConstraint (cleanup)

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Invert the boolean result to match the new name.

Change-Id: Ide6c649ed8ac3a5d263640309960e61a005c886e
Reviewed-on: https://go-review.googlesource.com/c/go/+/344872
Trust: Robert Griesemer <gri@golang.org>
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Dan Scales <danscales@google.com>
This commit is contained in:
Robert Griesemer 2021-08-24 20:20:07 -07:00
parent 4068fb6c21
commit 0ac64f6d70
3 changed files with 4 additions and 6 deletions
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2
src/cmd/compile/internal/types2/interface.go
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@ -98,7 +98,7 @@ func (t *Interface) Empty() bool { return t.typeSet().IsAll() }
func (t *Interface) IsComparable() bool { return t.typeSet().IsComparable() }
// IsConstraint reports whether interface t is not just a method set.
func (t *Interface) IsConstraint() bool { return !t.typeSet().IsMethodSet() }
func (t *Interface) IsConstraint() bool { return t.typeSet().IsConstraint() }
func (t *Interface) Underlying() Type { return t }
func (t *Interface) String() string { return TypeString(t, nil) }

6
src/cmd/compile/internal/types2/typeset.go
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@ -30,10 +30,8 @@ func (s *_TypeSet) IsAll() bool {
return !s.comparable && len(s.methods) == 0 && s.terms.isAll()
}
// TODO(gri) IsMethodSet is not a great name for this predicate. Find a better one.
// IsMethodSet reports whether the type set s is described by a single set of methods.
func (s *_TypeSet) IsMethodSet() bool { return !s.comparable && s.terms.isAll() }
// IsConstraint reports whether type set s is not just a set of methods.
func (s *_TypeSet) IsConstraint() bool { return s.comparable || !s.terms.isAll() }
// IsComparable reports whether each type in the set is comparable.
func (s *_TypeSet) IsComparable() bool {

2
src/cmd/compile/internal/types2/typexpr.go
View File

@ -151,7 +151,7 @@ func (check *Checker) ordinaryType(pos syntax.Pos, typ Type) {
check.later(func() {
if t := asInterface(typ); t != nil {
tset := computeInterfaceTypeSet(check, pos, t) // TODO(gri) is this the correct position?
if !tset.IsMethodSet() {
if tset.IsConstraint() {
if tset.comparable {
check.softErrorf(pos, "interface is (or embeds) comparable")
} else {