// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
// All rights reserved.

// plugin.go
package expr

import (
	"fmt"
	"plugin"
)

var pluginRegister map[string]*plugin.Plugin

func registerPlugin(name string, p *plugin.Plugin) (err error) {
	if pluginExists(name) {
		err = fmt.Errorf("plugin %q already loaded", name)
	} else {
		pluginRegister[name] = p
	}
	return
}

func pluginExists(name string) (exists bool) {
	_, exists = pluginRegister[name]
	return
}

func init() {
	pluginRegister = make(map[string]*plugin.Plugin)
}