mirror of
https://github.com/golang/go
synced 2024-11-15 03:00:36 -07:00
e24977d231
The next CL will remove the -G flag, effectively hard-coding it to its current default (-G=3). Change-Id: Ib4743b529206928f9f1cca9fdb19989728327831 Reviewed-on: https://go-review.googlesource.com/c/go/+/388534 Reviewed-by: Keith Randall <khr@golang.org> Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
102 lines
2.0 KiB
Go
102 lines
2.0 KiB
Go
// compile
|
|
|
|
// 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 "fmt"
|
|
|
|
type Fn[T any] func(T)
|
|
type FnErr[T any] func(T) error
|
|
|
|
// Test that local generic types across functions don't conflict, and they also don't
|
|
// conflict with local non-generic types and local variables.
|
|
func caller0() {
|
|
type X[T any] struct {
|
|
fn Fn[int]
|
|
}
|
|
|
|
x := X[int]{func(v int) { fmt.Println(v) }}
|
|
x.fn(0)
|
|
}
|
|
|
|
func caller1(val int) {
|
|
type X[T any] struct {
|
|
fn FnErr[int]
|
|
}
|
|
|
|
x := X[int]{func(v int) error { fmt.Println(v); return nil }}
|
|
x.fn(0)
|
|
}
|
|
|
|
func caller1a(val int) {
|
|
type X struct {
|
|
fn func(float64) error
|
|
}
|
|
|
|
x := X{func(v float64) error { fmt.Println(v); return nil }}
|
|
x.fn(float64(3.2))
|
|
}
|
|
|
|
func caller1b(val int) {
|
|
type Y struct {
|
|
fn func(float64) error
|
|
}
|
|
|
|
X := Y{func(v float64) error { fmt.Println(v); return nil }}
|
|
X.fn(float64(3.2))
|
|
}
|
|
|
|
// Test that local generic types within different if clauses don't conflict.
|
|
func caller2(val int) {
|
|
if val > 2 {
|
|
type X[T any] struct {
|
|
fn func(v int) float64
|
|
}
|
|
|
|
x := X[int]{func(v int) float64 { fmt.Println(v); return 1.5 }}
|
|
x.fn(0)
|
|
} else {
|
|
type X[T any] struct {
|
|
fn func(v int) int
|
|
}
|
|
x := X[int]{func(v int) int { fmt.Println(v); return 5 }}
|
|
x.fn(0)
|
|
}
|
|
}
|
|
|
|
// Test that local generic types within different cases don't conflict with each
|
|
// other or with local non-generic types or local variables.
|
|
func caller3(val int) {
|
|
switch val {
|
|
case 0:
|
|
type X[T any] struct {
|
|
fn func(v int) float64
|
|
}
|
|
|
|
x := X[int]{func(v int) float64 { fmt.Println(v); return 1.5 }}
|
|
x.fn(0)
|
|
case 1:
|
|
type X[T any] struct {
|
|
fn func(v int) int
|
|
}
|
|
x := X[int]{func(v int) int { fmt.Println(v); return 5 }}
|
|
x.fn(0)
|
|
case 2:
|
|
type X struct {
|
|
fn func(v int) bool
|
|
}
|
|
x := X{func(v int) bool { fmt.Println(v); return false }}
|
|
x.fn(0)
|
|
case 3:
|
|
type Y struct {
|
|
fn func(v int) bool
|
|
}
|
|
X := Y{func(v int) bool { fmt.Println(v); return false }}
|
|
X.fn(0)
|
|
|
|
}
|
|
}
|