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cmd/cgo: use slices.Index

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Now that Go 1.22.6 is the minimum bootstrap toolchain (cf. CL 606156),
the slices package (introduced in Go 1.21) can be used in packages built
using the bootstrap toolchain.

For #64751

Change-Id: Ife0daa37c0982d9ec1afab07b9d40a1dfee9b7d4
Reviewed-on: https://go-review.googlesource.com/c/go/+/610575
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Tobias Klauser 2024-09-04 13:31:19 +02:00 committed by Gopher Robot
parent c3f16307b3
commit 634363e3ca
1 changed files with 2 additions and 10 deletions
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12
src/cmd/cgo/util.go
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@ -10,13 +10,14 @@ import (
"go/token"
"os"
"os/exec"
"slices"
)
// run runs the command argv, feeding in stdin on standard input.
// It returns the output to standard output and standard error.
// ok indicates whether the command exited successfully.
func run(stdin []byte, argv []string) (stdout, stderr []byte, ok bool) {
if i := find(argv, "-xc"); i >= 0 && argv[len(argv)-1] == "-" {
if i := slices.Index(argv, "-xc"); i >= 0 && argv[len(argv)-1] == "-" {
// Some compilers have trouble with standard input.
// Others have trouble with -xc.
// Avoid both problems by writing a file with a .c extension.
@ -69,15 +70,6 @@ func run(stdin []byte, argv []string) (stdout, stderr []byte, ok bool) {
return
}
func find(argv []string, target string) int {
for i, arg := range argv {
if arg == target {
return i
}
}
return -1
}
func lineno(pos token.Pos) string {
return fset.Position(pos).String()
}