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| author | Robert Griesemer <gri@golang.org> | 2021-07-29 11:10:04 -0700 |
|---|---|---|
| committer | Robert Griesemer <gri@golang.org> | 2021-08-05 19:36:47 +0000 |
| commit | bb5608dd5d056519bd90666b815e0b2bf65e5ee8 (patch) | |
| tree | ce15dcdb79b6a54969dda7ec002a630c71ff40fb /src/cmd/compile/internal/types2/operand.go | |
| parent | 6dadee759c812961300c8d1a44959d14299fd9f8 (diff) | |
| download | go-bb5608dd5d056519bd90666b815e0b2bf65e5ee8.tar.gz go-bb5608dd5d056519bd90666b815e0b2bf65e5ee8.zip | |
[dev.typeparams] cmd/compile/internal/types2: implement type sets with term lists
This CL resolves several known issues and TODOs.
- Represent type sets with term lists and using term list abstractions.
- Represent Unions internally as a list of (syntactical) terms.
Use term operations to print terms and detect overlapping union
entries.
- Compute type sets corresponding to unions lazily, on demand.
- Adjust code throughout.
- Adjusted error check in test/typeparam/mincheck.dir/main.go
to make test pass.
Change-Id: Ib36fb7e1d343c2b6aec51d304f0f7d1ad415f999
Reviewed-on: https://go-review.googlesource.com/c/go/+/338310
Trust: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Diffstat (limited to 'src/cmd/compile/internal/types2/operand.go')
| -rw-r--r-- | src/cmd/compile/internal/types2/operand.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/types2/operand.go b/src/cmd/compile/internal/types2/operand.go index 34d35b2594..8336451e9c 100644 --- a/src/cmd/compile/internal/types2/operand.go +++ b/src/cmd/compile/internal/types2/operand.go @@ -273,7 +273,7 @@ func (x *operand) assignableTo(check *Checker, T Type, reason *string) (bool, er // x is an untyped value representable by a value of type T. if isUntyped(Vu) { - if t, ok := Tu.(*Union); ok { + if t, ok := Tu.(*TypeParam); ok { return t.is(func(t *term) bool { // TODO(gri) this could probably be more efficient if t.tilde { |