helix-mods/helix-dap/examples/dap-dlv.rs

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use helix_dap::{events, Client, Payload, Result, SourceBreakpoint};
use serde::{Deserialize, Serialize};
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use serde_json::{from_value, to_value};
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use tokio::sync::mpsc::UnboundedReceiver;
#[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
struct LaunchArguments {
mode: String,
program: String,
}
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async fn dispatch(mut rx: UnboundedReceiver<Payload>) {
loop {
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match rx.recv().await.unwrap() {
Payload::Event(ev) => match &ev.event[..] {
"output" => {
let body: events::Output = from_value(ev.body.unwrap()).unwrap();
println!(
"> [{}] {}",
body.category.unwrap_or("unknown".to_owned()),
body.output
);
}
"stopped" => {
println!("stopped");
}
_ => {}
},
Payload::Response(_) => unreachable!(),
Payload::Request(_) => todo!(),
};
}
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}
#[tokio::main]
pub async fn main() -> Result<()> {
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let base_config = fern::Dispatch::new().level(log::LevelFilter::Info);
let stderr_config = fern::Dispatch::new()
.format(|out, message, record| out.finish(format_args!("[{}] {}", record.level(), message)))
.chain(std::io::stderr());
base_config
.chain(stderr_config)
.apply()
.expect("Failed to set up logging");
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let (mut client, events) =
Client::tcp_process("dlv", vec!["dap"], "-l 127.0.0.1:{}", 0).await?;
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println!("create: {:?}", client);
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tokio::spawn(dispatch(events));
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println!("init: {:?}", client.initialize("go".to_owned()).await);
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println!("caps: {:?}", client.capabilities());
let args = LaunchArguments {
mode: "exec".to_owned(),
program: "/tmp/godebug/main".to_owned(),
};
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println!("launch: {:?}", client.launch(to_value(args)?).await);
println!(
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"breakpoints: {:#?}",
client
.set_breakpoints(
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"/tmp/godebug/main.go".into(),
vec![SourceBreakpoint {
line: 8,
column: Some(2),
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condition: None,
hit_condition: None,
log_message: None,
}]
)
.await
);
let mut _in = String::new();
std::io::stdin()
.read_line(&mut _in)
.expect("Failed to read line");
println!("configurationDone: {:?}", client.configuration_done().await);
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let threads = client.threads().await?;
println!("threads: {:#?}", threads);
let bt = client
.stack_trace(threads[0].id)
.await
.expect("expected stack trace");
println!("stack trace: {:#?}", bt);
let scopes = client
.scopes(bt.0[0].id)
.await
.expect("expected scopes for thread");
println!("scopes: {:#?}", scopes);
println!(
"vars: {:#?}",
client.variables(scopes[1].variables_reference).await
);
let mut _in = String::new();
std::io::stdin()
.read_line(&mut _in)
.expect("Failed to read line");
println!("continued: {:?}", client.continue_thread(0).await);
let mut _in = String::new();
std::io::stdin()
.read_line(&mut _in)
.expect("Failed to read line");
println!("disconnect: {:?}", client.disconnect().await);
Ok(())
}