mirror of
https://github.com/golang/go
synced 2024-11-24 22:00:09 -07:00
b2c397e537
Unlikely to happen in practice, but easy enough to prevent and might as well do so for completeness. Fixes #28243. Change-Id: I848c3af49cb923f088e9490c6a79373e182fad08 Reviewed-on: https://go-review.googlesource.com/c/142719 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by: Austin Clements <austin@google.com>
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
// errorcheck -+
|
|
|
|
// Copyright 2016 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.
|
|
|
|
// Test type-checking errors for go:notinheap.
|
|
|
|
package p
|
|
|
|
//go:notinheap
|
|
type nih struct{}
|
|
|
|
// Types embedding notinheap types must be notinheap.
|
|
|
|
type embed1 struct { // ERROR "must be go:notinheap"
|
|
x nih
|
|
}
|
|
|
|
type embed2 [1]nih // ERROR "must be go:notinheap"
|
|
|
|
type embed3 struct { // ERROR "must be go:notinheap"
|
|
x [1]nih
|
|
}
|
|
|
|
type embed4 map[nih]int // ERROR "go:notinheap map key not allowed"
|
|
|
|
type embed5 map[int]nih // ERROR "go:notinheap map value not allowed"
|
|
|
|
type emebd6 chan nih // ERROR "chan of go:notinheap type not allowed"
|
|
|
|
type okay1 *nih
|
|
|
|
type okay2 []nih
|
|
|
|
type okay3 func(x nih) nih
|
|
|
|
type okay4 interface {
|
|
f(x nih) nih
|
|
}
|
|
|
|
// Type conversions don't let you sneak past notinheap.
|
|
|
|
type t1 struct{ x int }
|
|
|
|
//go:notinheap
|
|
type t2 t1
|
|
|
|
//go:notinheap
|
|
type t3 byte
|
|
|
|
//go:notinheap
|
|
type t4 rune
|
|
|
|
var sink interface{}
|
|
|
|
func i() {
|
|
sink = new(t1) // no error
|
|
sink = (*t2)(new(t1)) // ERROR "cannot convert(.|\n)*t2 is go:notinheap"
|
|
sink = (*t2)(new(struct{ x int })) // ERROR "cannot convert(.|\n)*t2 is go:notinheap"
|
|
sink = []t3("foo") // ERROR "cannot convert(.|\n)*t3 is go:notinheap"
|
|
sink = []t4("bar") // ERROR "cannot convert(.|\n)*t4 is go:notinheap"
|
|
}
|