go/test/typeparam/issue48716.dir/main.go
Matthew Dempsky 999589e148 test: use dot-relative imports where appropriate
Currently, run.go's *dir tests allow "x.go" to be imported
interchangeably as either "x" or "./x". This is generally fine, but
can cause problems when "x" is the name of a standard library
package (e.g., "fixedbugs/bug345.dir/io.go").

This CL is an automated rewrite to change all `import "x"` directives
to use `import "./x"` instead. It has no effect today, but will allow
subsequent CLs to update test/run.go to resolve "./x" to "test/x" to
avoid stdlib collisions.

Change-Id: Ic76cd7140e83b47e764f8a499e59936be2b3c876
Reviewed-on: https://go-review.googlesource.com/c/go/+/395116
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2022-03-24 02:14:15 +00:00

59 lines
1,021 B
Go

// Copyright 2021 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
import (
"./a"
)
// Creates copy of set
func Copy[T comparable](src MapSet[T]) (dst MapSet[T]) {
dst = HashSet[T](src.Len())
Fill(src, dst)
return
}
// Fill src from dst
func Fill[T any](src, dst MapSet[T]) {
src.Iterate(func(t T) bool {
dst.Add(t)
return true
})
return
}
type MapSet[T any] struct {
m a.Map[T, struct{}]
}
func HashSet[T comparable](capacity int) MapSet[T] {
return FromMap[T](a.NewHashMap[T, struct{}](capacity))
}
func FromMap[T any](m a.Map[T, struct{}]) MapSet[T] {
return MapSet[T]{
m: m,
}
}
func (s MapSet[T]) Add(t T) {
s.m.Put(t, struct{}{})
}
func (s MapSet[T]) Len() int {
return s.m.Len()
}
func (s MapSet[T]) Iterate(cb func(T) bool) {
s.m.Iterate(func(p a.Pair[T, struct{}]) bool {
return cb(p.L)
})
}
func main() {
x := FromMap[int](a.NewHashMap[int, struct{}](1))
Copy[int](x)
}