dap: move launch request argumets outside of client

helix-dap/examples/dap-basic.rs

@@ -1,4 +1,12 @@
 use helix_dap::{Client, Result, SourceBreakpoint};
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct LaunchArguments {
+    mode: String,
+    program: String,
+}
 
 #[tokio::main]
 pub async fn main() -> Result<()> {
@@ -19,9 +27,15 @@ pub async fn main() -> Result<()> {
 
     println!("init: {:?}", client.initialize("go".to_owned()).await);
     println!("caps: {:#?}", client.capabilities());
+
+    let args = LaunchArguments {
+        mode: "exec".to_owned(),
+        program: "/tmp/godebug/main".to_owned(),
+    };
+
     println!(
         "launch: {:?}",
-        client.launch("/tmp/godebug/main".to_owned()).await
+        client.launch(serde_json::to_value(args)?).await
     );
 
     println!(

helix-dap/src/client.rs

@@ -45,14 +45,6 @@ struct InitializeArguments {
     supports_invalidated_event: bool,
 }
 
-// TODO: split out, as it's a debugger-specific payload not covered by standard
-#[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
-#[serde(rename_all = "camelCase")]
-struct LaunchArguments {
-    mode: String,
-    program: String,
-}
-
 #[derive(Debug, PartialEq, Clone, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct Checksum {
@@ -380,14 +372,8 @@ impl Client {
         Ok(())
     }
 
-    pub async fn launch(&mut self, executable: String) -> Result<()> {
-        let args = LaunchArguments {
-            mode: "exec".to_owned(),
-            program: executable,
-        };
-
-        self.request("launch".to_owned(), to_value(args).ok())
-            .await?;
+    pub async fn launch(&mut self, args: Value) -> Result<()> {
+        self.request("launch".to_owned(), Some(args)).await?;
 
         match self
             .server_rx