mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-27 13:37:30 +00:00
fe59e091eb
They contain some nice-to-have improvements (for example, better printing of errors with gomega/format.Object) but nothing that is critical right now. "go mod tidy" was run manually in staging/src/k8s.io/kms/internal/plugins/mock (https://github.com/kubernetes/kubernetes/pull/116613 not merged yet).
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
// Copyright 2023 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 tokeninternal provides access to some internal features of the token
|
|
// package.
|
|
package tokeninternal
|
|
|
|
import (
|
|
"go/token"
|
|
"sync"
|
|
"unsafe"
|
|
)
|
|
|
|
// GetLines returns the table of line-start offsets from a token.File.
|
|
func GetLines(file *token.File) []int {
|
|
// token.File has a Lines method on Go 1.21 and later.
|
|
if file, ok := (interface{})(file).(interface{ Lines() []int }); ok {
|
|
return file.Lines()
|
|
}
|
|
|
|
// This declaration must match that of token.File.
|
|
// This creates a risk of dependency skew.
|
|
// For now we check that the size of the two
|
|
// declarations is the same, on the (fragile) assumption
|
|
// that future changes would add fields.
|
|
type tokenFile119 struct {
|
|
_ string
|
|
_ int
|
|
_ int
|
|
mu sync.Mutex // we're not complete monsters
|
|
lines []int
|
|
_ []struct{}
|
|
}
|
|
type tokenFile118 struct {
|
|
_ *token.FileSet // deleted in go1.19
|
|
tokenFile119
|
|
}
|
|
|
|
type uP = unsafe.Pointer
|
|
switch unsafe.Sizeof(*file) {
|
|
case unsafe.Sizeof(tokenFile118{}):
|
|
var ptr *tokenFile118
|
|
*(*uP)(uP(&ptr)) = uP(file)
|
|
ptr.mu.Lock()
|
|
defer ptr.mu.Unlock()
|
|
return ptr.lines
|
|
|
|
case unsafe.Sizeof(tokenFile119{}):
|
|
var ptr *tokenFile119
|
|
*(*uP)(uP(&ptr)) = uP(file)
|
|
ptr.mu.Lock()
|
|
defer ptr.mu.Unlock()
|
|
return ptr.lines
|
|
|
|
default:
|
|
panic("unexpected token.File size")
|
|
}
|
|
}
|