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
34 lines
713 B
Go
34 lines
713 B
Go
// Copyright 2019 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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package robustio
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import (
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"os"
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"syscall"
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)
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const errFileNotFound = syscall.ERROR_FILE_NOT_FOUND
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// isEphemeralError returns true if err may be resolved by waiting.
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func isEphemeralError(err error) bool {
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switch werr := err.(type) {
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case *os.PathError:
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err = werr.Err
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case *os.LinkError:
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err = werr.Err
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case *os.SyscallError:
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err = werr.Err
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}
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if errno, ok := err.(syscall.Errno); ok {
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switch errno {
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case syscall.ERROR_ACCESS_DENIED,
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syscall.ERROR_FILE_NOT_FOUND,
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ERROR_SHARING_VIOLATION:
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return true
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}
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}
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return false
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}
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