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Diffstat (limited to '')
-rw-r--r-- | test/fixedbugs/issue53309.go | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/test/fixedbugs/issue53309.go b/test/fixedbugs/issue53309.go new file mode 100644 index 0000000..4ad88d4 --- /dev/null +++ b/test/fixedbugs/issue53309.go @@ -0,0 +1,42 @@ +// run + +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package main + +type TaskInput interface { + deps() []*taskDefinition +} + +type Value[T any] interface { + metaValue +} + +type metaValue interface { + TaskInput +} + +type taskDefinition struct { +} + +type taskResult struct { + task *taskDefinition +} + +func (tr *taskResult) deps() []*taskDefinition { + return nil +} + +func use[T any](v Value[T]) { + _, ok := v.(*taskResult) + if !ok { + panic("output must be *taskResult") + } +} + +func main() { + tr := &taskResult{&taskDefinition{}} + use[string](Value[string](tr)) +} |