refactor(effect): inline session processor interrupt cleanup (#21593)

packages/opencode/src/session/processor.ts

@@ -30,7 +30,6 @@ export namespace SessionProcessor {
   export interface Handle {
     readonly message: MessageV2.Assistant
     readonly partFromToolCall: (toolCallID: string) => MessageV2.ToolPart | undefined
-    readonly abort: () => Effect.Effect<void>
     readonly process: (streamInput: LLM.StreamInput) => Effect.Effect<Result>
   }
 
@@ -429,19 +428,6 @@ export namespace SessionProcessor {
           yield* status.set(ctx.sessionID, { type: "idle" })
         })
 
-        const abort = Effect.fn("SessionProcessor.abort")(() =>
-          Effect.gen(function* () {
-            if (!ctx.assistantMessage.error) {
-              yield* halt(new DOMException("Aborted", "AbortError"))
-            }
-            if (!ctx.assistantMessage.time.completed) {
-              yield* cleanup()
-              return
-            }
-            yield* session.updateMessage(ctx.assistantMessage)
-          }),
-        )
-
         const process = Effect.fn("SessionProcessor.process")(function* (streamInput: LLM.StreamInput) {
           log.info("process")
           ctx.needsCompaction = false
@@ -459,7 +445,14 @@ export namespace SessionProcessor {
                 Stream.runDrain,
               )
             }).pipe(
-              Effect.onInterrupt(() => Effect.sync(() => void (aborted = true))),
+              Effect.onInterrupt(() =>
+                Effect.gen(function* () {
+                  aborted = true
+                  if (!ctx.assistantMessage.error) {
+                    yield* halt(new DOMException("Aborted", "AbortError"))
+                  }
+                }),
+              ),
               Effect.catchCauseIf(
                 (cause) => !Cause.hasInterruptsOnly(cause),
                 (cause) => Effect.fail(Cause.squash(cause)),
@@ -480,13 +473,10 @@ export namespace SessionProcessor {
               Effect.ensuring(cleanup()),
             )
 
-            if (aborted && !ctx.assistantMessage.error) {
-              yield* abort()
-            }
             if (ctx.needsCompaction) return "compact"
-            if (ctx.blocked || ctx.assistantMessage.error || aborted) return "stop"
+            if (ctx.blocked || ctx.assistantMessage.error) return "stop"
             return "continue"
-          }).pipe(Effect.onInterrupt(() => abort().pipe(Effect.asVoid)))
+          })
         })
 
         return {
@@ -496,7 +486,6 @@ export namespace SessionProcessor {
           partFromToolCall(toolCallID: string) {
             return ctx.toolcalls[toolCallID]
           },
-          abort,
           process,
         } satisfies Handle
       })