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Cache the last ObjC bridging conformance we looked up (#81545)

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Fixes rdar://151475392
This commit is contained in:
David Smith
2025-05-16 18:00:13 +00:00
committed by GitHub
parent 779c31aa46
commit e795eb0d13
3 changed files with 132 additions and 7 deletions
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31
benchmark/single-source/ObjectiveCBridging.swift
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@@ -97,6 +97,9 @@ public let benchmarks = [
BenchmarkInfo(name: "NSArray.bridged.repeatedBufferAccess",
runFunction: run_BridgedNSArrayRepeatedBufferAccess, tags: t,
setUpFunction: setup_bridgedArrays),
BenchmarkInfo(name: "NSDictionary.bridged.enumerate",
runFunction: run_BridgedNSDictionaryEnumerate, tags: t,
setUpFunction: setup_bridgedDictionaries),
]
#if _runtime(_ObjC)
@@ -794,6 +797,7 @@ public func run_UnicodeStringFromCodable(_ n: Int) {
#if _runtime(_ObjC)
var bridgedArray:NSArray! = nil
var bridgedDictionaryOfNumbersToNumbers:NSDictionary! = nil
var bridgedArrayMutableCopy:NSMutableArray! = nil
var nsArray:NSArray! = nil
var nsArrayMutableCopy:NSMutableArray! = nil
@@ -804,11 +808,21 @@ public func setup_bridgedArrays() {
var arr = Array(repeating: NSObject(), count: 100) as [AnyObject]
bridgedArray = arr as NSArray
bridgedArrayMutableCopy = (bridgedArray.mutableCopy() as! NSMutableArray)
nsArray = NSArray(objects: &arr, count: 100)
nsArrayMutableCopy = (nsArray.mutableCopy() as! NSMutableArray)
#endif
}
public func setup_bridgedDictionaries() {
var numDict = Dictionary<Int, Int>()
for i in 0 ..< 100 {
numDict[i] = i
}
bridgedDictionaryOfNumbersToNumbers = numDict as NSDictionary
}
@inline(never)
public func run_BridgedNSArrayObjectAtIndex(_ n: Int) {
#if _runtime(_ObjC)
@@ -820,6 +834,23 @@ public func run_BridgedNSArrayObjectAtIndex(_ n: Int) {
#endif
}
private func dictionaryApplier(
_ keyPtr: UnsafeRawPointer?,
_ valuePtr :UnsafeRawPointer?,
_ contextPtr: UnsafeMutableRawPointer?
) -> Void {}
@inline(never)
public func run_BridgedNSDictionaryEnumerate(_ n: Int) {
#if _runtime(_ObjC)
let cf = bridgedDictionaryOfNumbersToNumbers as CFDictionary
for _ in 0 ..< n * 50 {
// Use CF to prevent Swift from providing an override, forcing going through ObjC bridging
CFDictionaryApplyFunction(cf, dictionaryApplier, nil)
}
#endif
}
@inline(never)
public func run_BridgedNSArrayBufferAccess(_ n: Int) {
#if _runtime(_ObjC)