backend

type Backend interface {
	// The name of this backend.
	Name() string

	// Lang returns the target langauge that this backend supports.
	Lang() string

	// Generate generates codes.
	Generate(req *plugin.Request, log LogFunc) (res *plugin.Response)

	// Options returns the available options with their descriptions.
	Options() []plugin.Option

	// BuiltinPlugins returns a list of built-in plugins of the backend.
	BuiltinPlugins() []*plugin.Desc

	// GetPlugin returns a plugin that match the description or nil.
	GetPlugin(desc *plugin.Desc) plugin.Plugin
}

type LogFunc struct {
	Info      func(v ...interface{})
	Warn      func(v ...interface{})
	MultiWarn func(warns []string)
}