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util/deephash: remove unused stack slice in typeIsRecursive (#5363)

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No operation ever reads from this variable.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
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Joe Tsai 2022-08-15 22:36:08 -07:00 committed by GitHub
parent c200229f9e
commit 23ec3c104a
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1 changed files with 0 additions and 4 deletions
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4
util/deephash/deephash.go
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@ -646,8 +646,6 @@ func getTypeInfoLocked(t reflect.Type, incomplete map[reflect.Type]*typeInfo) *t
func typeIsRecursive(t reflect.Type) bool {
inStack := map[reflect.Type]bool{}
var stack []reflect.Type
var visitType func(t reflect.Type) (isRecursiveSoFar bool)
visitType = func(t reflect.Type) (isRecursiveSoFar bool) {
switch t.Kind() {
@ -678,11 +676,9 @@ func typeIsRecursive(t reflect.Type) bool {
if inStack[t] {
return true
}
stack = append(stack, t)
inStack[t] = true
defer func() {
delete(inStack, t)
stack = stack[:len(stack)-1]
}()
switch t.Kind() {