mirror of
https://github.com/golang/go
synced 2024-11-23 05:50:05 -07:00
0c1a899a6c
The compiler has logic to check whether we implicitly dereferenced a defined pointer while trying to select a method. However, rather than checking whether there were any implicit dereferences of a defined pointer, it was finding the innermost dereference/selector expression and checking whether that was dereferencing a named pointer. Moreover, it was only checking defined pointer declared in the package block. This CL restructures the code to match go/types and gccgo's behavior. Fixes #43384. Change-Id: I7bddfe2515776d9480eb2c7286023d4c15423888 Reviewed-on: https://go-review.googlesource.com/c/go/+/280392 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> Trust: Robert Griesemer <gri@golang.org> Trust: Matthew Dempsky <mdempsky@google.com>
125 lines
1.9 KiB
Go
125 lines
1.9 KiB
Go
// errorcheck
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// Copyright 2020 The Go Authors. All rights reserved. Use of this
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// source code is governed by a BSD-style license that can be found in
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// the LICENSE file.
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package p
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type T int
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func (T) Mv() {}
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func (*T) Mp() {}
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type P1 struct{ T }
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type P2 struct{ *T }
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type P3 *struct{ T }
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type P4 *struct{ *T }
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func _() {
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{
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var p P1
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p.Mv()
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(&p).Mv()
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(*&p).Mv()
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p.Mp()
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(&p).Mp()
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(*&p).Mp()
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}
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{
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var p P2
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p.Mv()
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(&p).Mv()
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(*&p).Mv()
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p.Mp()
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(&p).Mp()
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(*&p).Mp()
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}
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{
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var p P3
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p.Mv() // ERROR "undefined"
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(&p).Mv() // ERROR "undefined"
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(*&p).Mv() // ERROR "undefined"
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(**&p).Mv()
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(*p).Mv()
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(&*p).Mv()
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p.Mp() // ERROR "undefined"
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(&p).Mp() // ERROR "undefined"
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(*&p).Mp() // ERROR "undefined"
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(**&p).Mp()
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(*p).Mp()
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(&*p).Mp()
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}
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{
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var p P4
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p.Mv() // ERROR "undefined"
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(&p).Mv() // ERROR "undefined"
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(*&p).Mv() // ERROR "undefined"
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(**&p).Mv()
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(*p).Mv()
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(&*p).Mv()
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p.Mp() // ERROR "undefined"
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(&p).Mp() // ERROR "undefined"
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(*&p).Mp() // ERROR "undefined"
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(**&p).Mp()
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(*p).Mp()
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(&*p).Mp()
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}
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}
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func _() {
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type P5 struct{ T }
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type P6 struct{ *T }
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type P7 *struct{ T }
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type P8 *struct{ *T }
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{
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var p P5
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p.Mv()
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(&p).Mv()
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(*&p).Mv()
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p.Mp()
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(&p).Mp()
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(*&p).Mp()
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}
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{
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var p P6
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p.Mv()
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(&p).Mv()
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(*&p).Mv()
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p.Mp()
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(&p).Mp()
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(*&p).Mp()
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}
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{
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var p P7
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p.Mv() // ERROR "undefined"
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(&p).Mv() // ERROR "undefined"
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(*&p).Mv() // ERROR "undefined"
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(**&p).Mv()
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(*p).Mv()
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(&*p).Mv()
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p.Mp() // ERROR "undefined"
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(&p).Mp() // ERROR "undefined"
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(*&p).Mp() // ERROR "undefined"
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(**&p).Mp()
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(*p).Mp()
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(&*p).Mp()
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}
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{
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var p P8
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p.Mv() // ERROR "undefined"
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(&p).Mv() // ERROR "undefined"
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(*&p).Mv() // ERROR "undefined"
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(**&p).Mv()
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(*p).Mv()
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(&*p).Mv()
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p.Mp() // ERROR "undefined"
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(&p).Mp() // ERROR "undefined"
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(*&p).Mp() // ERROR "undefined"
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(**&p).Mp()
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(*p).Mp()
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(&*p).Mp()
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}
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}
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