Merge pull request swiftlang#81592 from tshortli/embedded-swift-retain-discardable-result

tshortli · web-flow · commit e4f4bd36a559 · 2025-05-18T15:24:19.000-07:00
Embedded: Suppress spurious unused result warnings
diff --git a/stdlib/public/core/EmbeddedRuntime.swift b/stdlib/public/core/EmbeddedRuntime.swift
@@ -316,6 +316,7 @@ func swift_isUniquelyReferenced_nonNull_native(object: UnsafeMutablePointer<Heap
 }
 
 @_cdecl("swift_retain")
+@discardableResult
 public func swift_retain(object: Builtin.RawPointer) -> Builtin.RawPointer {
   if !isValidPointerForNativeRetain(object: object) { return object }
 
@@ -344,6 +345,7 @@ func swift_retain_n_(object: UnsafeMutablePointer<HeapObject>, n: UInt32) -> Uns
 }
 
 @_cdecl("swift_bridgeObjectRetain")
+@discardableResult
 public func swift_bridgeObjectRetain(object: Builtin.RawPointer) -> Builtin.RawPointer {
   return swift_bridgeObjectRetain_n(object: object, n: 1)
 }

Original file line number	Diff line number	Diff line change
`@@ -316,6 +316,7 @@ func swift_isUniquelyReferenced_nonNull_native(object: UnsafeMutablePointer<Heap`
`316`	`316`	`}`
`317`	`317`
`318`	`318`	`@_cdecl("swift_retain")`
	`319`	`+@discardableResult`
`319`	`320`	`public func swift_retain(object: Builtin.RawPointer) -> Builtin.RawPointer {`
`320`	`321`	`if !isValidPointerForNativeRetain(object: object) { return object }`
`321`	`322`
`@@ -344,6 +345,7 @@ func swift_retain_n_(object: UnsafeMutablePointer<HeapObject>, n: UInt32) -> Uns`
`344`	`345`	`}`
`345`	`346`
`346`	`347`	`@_cdecl("swift_bridgeObjectRetain")`
	`348`	`+@discardableResult`
`347`	`349`	`public func swift_bridgeObjectRetain(object: Builtin.RawPointer) -> Builtin.RawPointer {`
`348`	`350`	`return swift_bridgeObjectRetain_n(object: object, n: 1)`
`349`	`351`	`}`