/usr/share/gocode/src/github.com/constabulary/gb/internal/vendor/stringset.go is in golang-github-constabulary-gb-dev 0.4.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// union returns the union of a and b.
func union(a, b map[string]bool) map[string]bool {
r := make(map[string]bool)
for k := range a {
r[k] = true
}
for k := range b {
r[k] = true
}
return r
}
// intersection returns the intersection of a and b.
func intersection(a, b map[string]bool) map[string]bool {
r := make(map[string]bool)
for k := range a {
if b[k] {
r[k] = true
}
}
return r
}
// difference returns the symetric difference of a and b.
func difference(a, b map[string]bool) map[string]bool {
r := make(map[string]bool)
for k := range a {
if !b[k] {
r[k] = true
}
}
for k := range b {
if !a[k] {
r[k] = true
}
}
return r
}
// contains returns true if a contains all the elements in s.
func contains(a map[string]bool, s ...string) bool {
var r bool
for _, e := range s {
if !a[e] {
return false
}
r = true
}
return r
}
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