swift-cgo-example

This example demonstrates how to use CGO to call Swift code from Go. The path looks something like this:

Swift --> Bridging Header --> Objective-C --> C Header Definition --> CGO Include

While the process of calling Objective-C from Go is demonstrated in alexdiaferia's project gogoa, calling swift code requires a bridging header that is usually generated in Xcode. This is needed for interoperability between Objective-C and Swift, but as far as I'm aware, requires a precompiled object/library file in order to access the Swift function definition in Go.

In this example we:

• Generate a bridging header on the command line instead of Xcode.
• Output a library containing Objective-C and Swift code.
• Link that library using CGO.

To test it out, run

make && ./swift-cgo-example