codemp/src/ffi/lua/buffer.rs

use mlua_codemp_patch as mlua;
use mlua::prelude::*;
use crate::prelude::*;

use super::ext::a_sync::a_sync;
use super::ext::from_lua_serde;


impl LuaUserData for CodempBufferController {
	fn add_methods<M: LuaUserDataMethods<Self>>(methods: &mut M) {
		methods.add_meta_method(LuaMetaMethod::ToString, |_, this, ()| Ok(format!("{:?}", this)));

		methods.add_method("send", |_, this, (change,): (CodempTextChange,)|
			a_sync! { this => this.send(change).await? }
		);

		methods.add_method("try_recv", |_, this, ()| a_sync! { this => this.try_recv().await? });
		methods.add_method("recv", |_, this, ()| a_sync! { this => this.recv().await? });
		methods.add_method("poll", |_, this, ()| a_sync! { this => this.poll().await? });

		methods.add_method("content", |_, this, ()| a_sync! { this => this.content().await? });

		methods.add_method("clear_callback", |_, this, ()| { this.clear_callback(); Ok(()) });
		methods.add_method("callback", |_, this, (cb,):(LuaFunction,)| {
			this.callback(move |controller: CodempBufferController| super::ext::callback().invoke(cb.clone(), controller));
			Ok(())
		});
	}
}

from_lua_serde! { CodempTextChange }
impl LuaUserData for CodempTextChange {
	fn add_fields<F: LuaUserDataFields<Self>>(fields: &mut F) {
		fields.add_field_method_get("content", |_, this| Ok(this.content.clone()));
		fields.add_field_method_get("start",   |_, this| Ok(this.start));
		fields.add_field_method_get("end",  |_, this| Ok(this.end));
		fields.add_field_method_get("hash",  |_, this| Ok(this.hash));
		// add a 'finish' accessor too because in Lua 'end' is reserved
		fields.add_field_method_get("finish",  |_, this| Ok(this.end));
	}

	fn add_methods<M: LuaUserDataMethods<Self>>(methods: &mut M) {
		methods.add_meta_method(LuaMetaMethod::ToString, |_, this, ()| Ok(format!("{:?}", this)));
		methods.add_method("apply", |_, this, (txt,):(String,)| Ok(this.apply(&txt)));
	}
}