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f45c2d7e47
So they can be added to ignored list, since the tests now require cgo.Incomplete, which is not recognized by go/types and types2. Updates #46731 Change-Id: I9f24e3c8605424d1f5f42ae4409437198f4c1326 Reviewed-on: https://go-review.googlesource.com/c/go/+/427142 Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com> Reviewed-by: Bryan Mills <bcmills@google.com> Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com>
86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
// errorcheck -+
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// Copyright 2016 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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// Test walk errors for not-in-heap.
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//go:build cgo
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package p
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import "runtime/cgo"
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type nih struct {
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_ cgo.Incomplete
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next *nih
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}
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// Global variables are okay.
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var x nih
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// Stack variables are not okay.
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func f() {
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var y nih // ERROR "nih is incomplete \(or unallocatable\); stack allocation disallowed"
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x = y
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}
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// Heap allocation is not okay.
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var y *nih
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var y2 *struct{ x nih }
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var y3 *[1]nih
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var z []nih
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var w []nih
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var n int
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var sink interface{}
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type embed1 struct { // implicitly notinheap
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x nih
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}
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type embed2 [1]nih // implicitly notinheap
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type embed3 struct { // implicitly notinheap
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x [1]nih
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}
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// Type aliases inherit the go:notinheap-ness of the type they alias.
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type nihAlias = nih
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type embedAlias1 struct { // implicitly notinheap
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x nihAlias
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}
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type embedAlias2 [1]nihAlias // implicitly notinheap
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func g() {
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y = new(nih) // ERROR "can't be allocated in Go"
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y2 = new(struct{ x nih }) // ERROR "can't be allocated in Go"
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y3 = new([1]nih) // ERROR "can't be allocated in Go"
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z = make([]nih, 1) // ERROR "can't be allocated in Go"
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z = append(z, x) // ERROR "can't be allocated in Go"
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sink = new(embed1) // ERROR "can't be allocated in Go"
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sink = new(embed2) // ERROR "can't be allocated in Go"
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sink = new(embed3) // ERROR "can't be allocated in Go"
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sink = new(embedAlias1) // ERROR "can't be allocated in Go"
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sink = new(embedAlias2) // ERROR "can't be allocated in Go"
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// Test for special case of OMAKESLICECOPY
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x := make([]nih, n) // ERROR "can't be allocated in Go"
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copy(x, z)
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z = x
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}
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// Writes don't produce write barriers.
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var p *nih
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//go:nowritebarrier
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func h() {
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y.next = p.next
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}
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