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Avoid escaping heap allocation 

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2018-12-13 19:43:12 +01:00
parent a6912ca7a2
commit 7323a00612
1 changed files with 3 additions and 3 deletions
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6
WireGuard/WireGuardNetworkExtension/PacketTunnelProvider.swift
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@ -159,9 +159,9 @@ class PacketTunnelProvider: NEPacketTunnelProvider {
}
// swiftlint:disable large_tuple
func withStringsAsGoStrings<R>(_ s1: String, _ s2: String? = nil, _ s3: String? = nil, _ s4: String? = nil, call: @escaping ((gostring_t, gostring_t, gostring_t, gostring_t)) -> R) -> R {
func helper(_ p1: UnsafePointer<Int8>?, _ p2: UnsafePointer<Int8>?, _ p3: UnsafePointer<Int8>?, _ p4: UnsafePointer<Int8>?) -> R {
func withStringsAsGoStrings<R>(_ s1: String, _ s2: String? = nil, _ s3: String? = nil, _ s4: String? = nil, call: ((gostring_t, gostring_t, gostring_t, gostring_t)) -> R) -> R {
func helper(_ p1: UnsafePointer<Int8>?, _ p2: UnsafePointer<Int8>?, _ p3: UnsafePointer<Int8>?, _ p4: UnsafePointer<Int8>?, _ call: ((gostring_t, gostring_t, gostring_t, gostring_t)) -> R) -> R {
return call((gostring_t(p: p1, n: s1.utf8.count), gostring_t(p: p2, n: s2?.utf8.count ?? 0), gostring_t(p: p3, n: s3?.utf8.count ?? 0), gostring_t(p: p4, n: s4?.utf8.count ?? 0)))
}
return helper(s1, s2, s3, s4)
return helper(s1, s2, s3, s4, call)
}