rsvim_core 0.1.2

The core library for RSVIM text editor.
Documentation 
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//! APIs for `Rsvim.buf` namespace.

use crate::buf::BufferId;
use crate::js::{JsRuntime, binding};
use crate::prelude::*;

/// `Rsvim.buf.current` API.
pub fn current(
  scope: &mut v8::HandleScope,
  _args: v8::FunctionCallbackArguments,
  mut rv: v8::ReturnValue,
) {
  debug_assert!(_args.length() == 0);
  let state_rc = JsRuntime::state(scope);
  let tree = state_rc.borrow().tree.clone();
  let tree = lock!(tree);
  match tree.current_window() {
    Some(current_window) => {
      let buf = current_window.buffer().upgrade().unwrap();
      let buf_id = lock!(buf).id();
      trace!("Rsvim.buf.current: {:?}", buf_id);
      rv.set_int32(buf_id);
    }
    None => {
      trace!("Rsvim.buf.current: not exist");
      rv.set_null();
    }
  }
}

/// `Rsvim.buf.list` API.
pub fn list(
  scope: &mut v8::HandleScope,
  _args: v8::FunctionCallbackArguments,
  mut rv: v8::ReturnValue,
) {
  debug_assert!(_args.length() == 0);
  let state_rc = JsRuntime::state(scope);
  let buffers = state_rc.borrow().buffers.clone();
  let buffers = lock!(buffers);
  trace!("Rsvim.buf.list: {:?}", buffers.keys());
  let buf_ids = buffers.keys().copied().collect::<Vec<BufferId>>();

  let buf_ids_array = v8::Array::new(scope, buf_ids.len() as i32);
  for (i, buf_id) in buf_ids.iter().enumerate() {
    let v = v8::Integer::new(scope, *buf_id);
    // let v = v8::Local::new(scope, v);
    buf_ids_array.set_index(scope, i as u32, v.into());
  }
  rv.set(v8::Local::new(scope, buf_ids_array).into());
}

/// `Rsvim.buf.writeSync` API.
pub fn write_sync(
  scope: &mut v8::HandleScope,
  args: v8::FunctionCallbackArguments,
  mut rv: v8::ReturnValue,
) {
  debug_assert!(args.length() == 1);
  let buf_id = args.get(0).int32_value(scope).unwrap();
  trace!("Rsvim.buf.writeSync: {:?}", buf_id);

  let state_rc = JsRuntime::state(scope);
  let state = state_rc.borrow();
  let buffers = state.buffers.clone();
  let buffers = lock!(buffers);

  match buffers.write_buffer(buf_id) {
    Ok(n) => {
      trace!("write_sync success, bufId:{:?}, bytes:{:?}", buf_id, n);
      rv.set_int32(n as i32);
    }
    Err(e) => {
      trace!("write_sync failed, bufId:{:?}, error:{:?}", buf_id, e);
      rv.set_undefined();
      binding::throw_exception(scope, &e);
    }
  }
}