backend

type Backend interface {
	String() string
	Init(options Options)
	Options() Options
	// BuildPkg builds a single package uniquely identified by its `name`.
	// Any dependency is assumed to be compiled at some point.
	BuildPkg(pkg_name, pkg_tag string, sem *sema.Sema) (*sema.Package, error)
	// BuildBin combines all the built packages into a binary file.
	BuildBin(top *sema.Package, deps ...*sema.Package) error
}

type Options struct {
	// Output file name.
	Out string
	// Entry is the code entry point.
	Entry string
	// KeepComments when generating the intermediate files, if any.
	KeepComments bool
	// WithLocation adds every statement location to the intermediate file.
	WithLocation bool
	CacheDir     string
}