go-mobile-collection

Note: I threw this together very quickly to solve a simple problem, so its design/interfaces are hardly thought out. But it should provide a good example for how to generate collection wrappers that work with go mobile until there is support for that.

This is a quick utility I adapted from another git project by Brett Slatkin see article here: http://www.onebigfluke.com/2014/12/generic-programming-go-generate.html

The reason for this is that go mobile doesn't currently support slices. So a current work around is to wrap a go slice with another type and expose methods that operate on that slice. So a wrapper may have methods like push, pop, insert, count, etc for modifying or reading from the array.

Usage

What this repo does is build a command line utility that can then be automatically called using go generate semantics.

• Find the file you that contains the struct definition you want to have a collection wrapper for.
• At the top of the file add the following: //go:generate go-mobile-collection $GOFILE
• Before the struct, add a comment to flag it:

  // @collection-wrapper
  type Example struct {
  ExampleField string
  }

• When you build your project a new file should now be generated called ($GOFILE)_collection.go that contains the automatically generated definitions.