52c9b88c25
The primary improvement is in early clearing of
analyzed package's TypeInfo, facts, etc for
whole program analyzers (`unused`). Clear it when it
becomes unused and GC collects them early. Initially this
clearing was performed for all analyzers except `unused`.
Update staticcheck from v0.0.1-2019.2.3 to v0.0.1-2020.1.4
Also in this commit:
* speed up loading packages from export data (2.5s -> 2.1s for std)
by not using mutex for export data since it was allowed in
x/tools#07722704da13
* make an order of execution of linters stable
* update renameio and robustio
* use robustio in caching
Relates: #987, #994, #995, #1011
30 lines
601 B
Go
30 lines
601 B
Go
// Copyright 2019 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 robustio
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
const errFileNotFound = syscall.ENOENT
|
|
|
|
// isEphemeralError returns true if err may be resolved by waiting.
|
|
func isEphemeralError(err error) bool {
|
|
switch werr := err.(type) {
|
|
case *os.PathError:
|
|
err = werr.Err
|
|
case *os.LinkError:
|
|
err = werr.Err
|
|
case *os.SyscallError:
|
|
err = werr.Err
|
|
|
|
}
|
|
if errno, ok := err.(syscall.Errno); ok {
|
|
return errno == errFileNotFound
|
|
}
|
|
return false
|
|
}
|