debugger/tasks: Remove TaskType enum (#29208)

Closes #ISSUE

Release Notes:

- N/A

---------

Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>

crates/dap/src/registry.rs

@@ -1,12 +1,25 @@
+use anyhow::Result;
+use async_trait::async_trait;
+use collections::FxHashMap;
 use gpui::{App, Global};
 use parking_lot::RwLock;
+use task::{DebugRequest, SpawnInTerminal};
 
 use crate::adapters::{DebugAdapter, DebugAdapterName};
 use std::{collections::BTreeMap, sync::Arc};
 
+/// Given a user build configuration, locator creates a fill-in debug target ([DebugRequest]) on behalf of the user.
+#[async_trait]
+pub trait DapLocator: Send + Sync {
+    /// Determines whether this locator can generate debug target for given task.
+    fn accepts(&self, build_config: &SpawnInTerminal) -> bool;
+    async fn run(&self, build_config: SpawnInTerminal) -> Result<DebugRequest>;
+}
+
 #[derive(Default)]
 struct DapRegistryState {
     adapters: BTreeMap<DebugAdapterName, Arc<dyn DebugAdapter>>,
+    locators: FxHashMap<String, Arc<dyn DapLocator>>,
 }
 
 #[derive(Clone, Default)]
@@ -35,6 +48,18 @@ impl DapRegistry {
         );
     }
 
+    pub fn add_locator(&self, name: String, locator: Arc<dyn DapLocator>) {
+        let _previous_value = self.0.write().locators.insert(name, locator);
+        debug_assert!(
+            _previous_value.is_none(),
+            "Attempted to insert a new debug locator when one is already registered"
+        );
+    }
+
+    pub fn locators(&self) -> FxHashMap<String, Arc<dyn DapLocator>> {
+        self.0.read().locators.clone()
+    }
+
     pub fn adapter(&self, name: &str) -> Option<Arc<dyn DebugAdapter>> {
         self.0.read().adapters.get(name).cloned()
     }