mirror of
https://github.com/golang/go
synced 2024-09-04 23:44:16 +00:00
![Keith Randall](/assets/img/avatar_default.png)
Simplify the implementation of interface conversions in the compiler. Don't pass fields that aren't needed (the data word, usually) to the runtime. For generics, we need to put a dynamic type in an interface. The new dataWord function is exactly what we need (the type word will come from a dictionary). Change-Id: Iade5de5c174854b65ad248f35c7893c603f7be3d Reviewed-on: https://go-review.googlesource.com/c/go/+/340029 Trust: Keith Randall <khr@golang.org> Trust: Dan Scales <danscales@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com>
25 lines
688 B
Go
25 lines
688 B
Go
// errorcheck -0 -live -l
|
|
|
|
// Copyright 2017 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.
|
|
|
|
// Issue 20250: liveness differed with concurrent compilation
|
|
// due to propagation of addrtaken to outer variables for
|
|
// closure variables.
|
|
|
|
package p
|
|
|
|
type T struct {
|
|
s [2]string
|
|
}
|
|
|
|
func f(a T) { // ERROR "live at entry to f: a"
|
|
var e interface{} // ERROR "stack object e interface \{\}$"
|
|
func() { // ERROR "live at entry to f.func1: a &e"
|
|
e = a.s // ERROR "live at call to convT: &e" "stack object a T$"
|
|
}()
|
|
// Before the fix, both a and e were live at the previous line.
|
|
_ = e
|
|
}
|