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5355753009
We don't usually reformat the test directory, but all of the files in test/typeparam are syntactically valid. I suspect the misformattings here are because developers aren't re-installing gofmt with -tags=typeparams, not intentionally exercising non-standard formatting. Change-Id: I3767d480434c19225568f3c7d656dc8589197183 Reviewed-on: https://go-review.googlesource.com/c/go/+/338093 Trust: Matthew Dempsky <mdempsky@google.com> Trust: Robert Griesemer <gri@golang.org> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>
117 lines
1.7 KiB
Go
117 lines
1.7 KiB
Go
// compile -G=3
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// Copyright 2020 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// This file tests built-in calls on generic types.
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// derived and expanded from cmd/compile/internal/types2/testdata/check/builtins.go2
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package builtins
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// close
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type C0 interface{ int }
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type C1 interface{ chan int }
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type C2 interface{ chan int | <-chan int }
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type C3 interface{ chan int | chan float32 }
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type C4 interface{ chan int | chan<- int }
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type C5[T any] interface{ ~chan T | chan<- T }
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func _[T C1](ch T) {
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close(ch)
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}
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func _[T C3](ch T) {
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close(ch)
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}
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func _[T C4](ch T) {
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close(ch)
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}
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func _[T C5[X], X any](ch T) {
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close(ch)
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}
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// delete
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type M0 interface{ int }
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type M1 interface{ map[string]int }
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type M2 interface {
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map[string]int | map[string]float64
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}
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type M3 interface{ map[string]int | map[rune]int }
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type M4[K comparable, V any] interface{ map[K]V | map[rune]V }
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func _[T M1](m T) {
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delete(m, "foo")
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}
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func _[T M2](m T) {
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delete(m, "foo")
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}
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func _[T M4[rune, V], V any](m T) {
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delete(m, 'k')
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}
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// make
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type Bmc interface {
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~map[rune]string | ~chan int
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}
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type Bms interface {
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~map[string]int | ~[]int
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}
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type Bcs interface {
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~chan bool | ~[]float64
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}
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type Bss interface {
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~[]int | ~[]string
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}
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func _[T Bmc]() {
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_ = make(T)
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_ = make(T, 10)
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}
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func _[T Bms]() {
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_ = make(T, 10)
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}
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func _[T Bcs]() {
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_ = make(T, 10)
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}
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func _[T Bss]() {
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_ = make(T, 10)
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_ = make(T, 10, 20)
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}
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// len/cap
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type Slice[T any] interface {
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type []T
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}
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func _[T any, S Slice[T]]() {
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x := make(S, 5, 10)
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_ = len(x)
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_ = cap(x)
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}
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// append
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func _[T any, S Slice[T]]() {
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x := make(S, 5)
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y := make(S, 2)
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var z T
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_ = append(x, y...)
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_ = append(x, z)
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}
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