8dc2499aa6
gotools/ * Makefile.am (go_cmd_cgo_files): Add ast_go118.go (check-go-tool): Copy golang.org/x/tools directories. * Makefile.in: Regenerate. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/384695
33 lines
768 B
Go
33 lines
768 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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//go:build aix || darwin || dragonfly || freebsd || hurd || linux || netbsd || openbsd || solaris
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package poll
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import "syscall"
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// Do the interface allocations only once for common
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// Errno values.
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var (
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errEAGAIN error = syscall.EAGAIN
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errEINVAL error = syscall.EINVAL
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errENOENT error = syscall.ENOENT
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)
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// errnoErr returns common boxed Errno values, to prevent
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// allocations at runtime.
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func errnoErr(e syscall.Errno) error {
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switch e {
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case 0:
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return nil
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case syscall.EAGAIN:
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return errEAGAIN
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case syscall.EINVAL:
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return errEINVAL
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case syscall.ENOENT:
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return errENOENT
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}
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return e
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}
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