Add iBeacon ABI export shims

Author: colemancda

PluginSDK/Examples/IBeacon/Sources/IBeacon/Exports.swift

@@ -0,0 +1,32 @@
+//
+//  Exports.swift
+//  IBeacon
+//
+//  ABI export shims. These live in the plugin's own module because `@_expose(wasm)` symbols are
+//  dropped when they come from a dependency module (swiftlang/swift#77812). Copied unchanged from
+//  the SDK template, with only the capability shims this plugin implements.
+//
+
+import BLEPluginSDK
+
+@_expose(wasm, "bleplug_abi_1")
+@_cdecl("bleplug_abi_1")
+func bleplugABIMarker() {}
+
+@_expose(wasm, "bleplug_alloc")
+@_cdecl("bleplug_alloc")
+func bleplugAlloc(_ size: UInt32) -> UInt32 {
+    PluginRuntime.allocate(size)
+}
+
+@_expose(wasm, "bleplug_free")
+@_cdecl("bleplug_free")
+func bleplugFree(_ pointer: UInt32, _ size: UInt32) {
+    PluginRuntime.deallocate(pointer)
+}
+
+@_expose(wasm, "bleplug_parse_manufacturer")
+@_cdecl("bleplug_parse_manufacturer")
+func bleplugParseManufacturer(_ pointer: UInt32, _ length: UInt32) -> UInt64 {
+    PluginRuntime.handle(pointer: pointer, length: length, parse: parseManufacturerData)
+}