import Darwin

func performanceNow()->Double{

returnJSObject.global.performance.now().number!

// Note: Please define `USE_SWIFT_TOOLS_VERSION_NEWER_THAN_5_5` if the swift-tools-version is newer

// than 5.5 to avoid the linking issue.

// Workaround: The latest SwiftPM rename main entry point name of executable target

// to avoid conflicting "main" with test target since `swift-tools-version >= 5.5`.

// The main symbol is renamed to "{{module_name}}_main" and it's renamed again to be

// "main" when linking the executable target. The former renaming is done by Swift compiler,

// and the latter is done by linker, so SwiftPM passes some special linker flags for each platform.

// But SwiftPM assumes that wasm-ld supports it by returning an empty array instead of nil even though

// wasm-ld doesn't support it yet.

// ref: https://github.com/apple/swift-package-manager/blob/1be68e811d0d814ba7abbb8effee45f1e8e6ec0d/Sources/Build/BuildPlan.swift#L117-L126

// So define an explicit "main" by @_cdecl

func main(argc:Int32, argv:Int32)->Int32{

print(error)

print(error)