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denoland-deno/cli/ops/repl.rs
Bartek Iwańczuk b657d743a2
refactor: remove CliState, use OpState, add CliModuleLoader (#7588)
- remove "CliState.workers" and "CliState.next_worker_id", instead
store them on "OpState" using type aliases.
- remove "CliState.global_timer" and "CliState.start_time", instead
store them on "OpState" using type aliases.
- remove "CliState.is_internal", instead pass it to Worker::new
- move "CliState::permissions" to "OpState"
- move "CliState::main_module" to "OpState"
- move "CliState::global_state" to "OpState"
- move "CliState::check_unstable()" to "GlobalState"
- change "cli_state()" to "global_state()"
- change "deno_core::ModuleLoader" trait to pass "OpState" to callbacks
- rename "CliState" to "CliModuleLoader"
2020-09-20 01:17:35 +02:00

76 lines
1.9 KiB
Rust

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use crate::repl;
use crate::repl::Repl;
use deno_core::error::bad_resource_id;
use deno_core::error::AnyError;
use deno_core::BufVec;
use deno_core::OpState;
use deno_core::ZeroCopyBuf;
use serde::Deserialize;
use serde_json::Value;
use std::cell::RefCell;
use std::rc::Rc;
use std::sync::Arc;
use std::sync::Mutex;
pub fn init(rt: &mut deno_core::JsRuntime) {
super::reg_json_sync(rt, "op_repl_start", op_repl_start);
super::reg_json_async(rt, "op_repl_readline", op_repl_readline);
}
struct ReplResource(Arc<Mutex<Repl>>);
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct ReplStartArgs {
history_file: String,
}
fn op_repl_start(
state: &mut OpState,
args: Value,
_zero_copy: &mut [ZeroCopyBuf],
) -> Result<Value, AnyError> {
let args: ReplStartArgs = serde_json::from_value(args)?;
debug!("op_repl_start {}", args.history_file);
let history_path = {
let cli_state = super::global_state(state);
repl::history_path(&cli_state.dir, &args.history_file)
};
let repl = repl::Repl::new(history_path);
let resource = ReplResource(Arc::new(Mutex::new(repl)));
let rid = state.resource_table.add("repl", Box::new(resource));
Ok(json!(rid))
}
#[derive(Deserialize)]
struct ReplReadlineArgs {
rid: i32,
prompt: String,
}
async fn op_repl_readline(
state: Rc<RefCell<OpState>>,
args: Value,
_zero_copy: BufVec,
) -> Result<Value, AnyError> {
let args: ReplReadlineArgs = serde_json::from_value(args)?;
let rid = args.rid as u32;
let prompt = args.prompt;
debug!("op_repl_readline {} {}", rid, prompt);
let repl = {
let state = state.borrow();
let resource = state
.resource_table
.get::<ReplResource>(rid)
.ok_or_else(bad_resource_id)?;
resource.0.clone()
};
tokio::task::spawn_blocking(move || {
let line = repl.lock().unwrap().readline(&prompt)?;
Ok(json!(line))
})
.await
.unwrap()
}