Get the error msg for tabclose

NvimView/Sources/NvimView/NvimView+Resize.swift

@@ -74,29 +74,6 @@ extension NvimView {
 
     self.log.info("NVIM_LISTEN_ADDRESS=\(sockPath)")
 
-    self.api.msgpackRawStream
-      .subscribe(onNext: { [weak self] msg in
-        switch msg {
-
-        case let .notification(method, params):
-          self?.log.debug("NOTIFICATION: \(method): \(params)")
-
-          guard method == NvimView.rpcEventName else { return }
-          self?.eventsSubject.onNext(.rpcEvent(params))
-
-        case let .error(_, msg):
-          self?.log.debug("MSG ERROR: \(msg)")
-
-        default:
-          self?.log.debug("???: This should not happen")
-          break
-
-        }
-      }, onError: { [weak self] error in
-        self?.log.error(error)
-      })
-      .disposed(by: self.disposeBag)
-
     // We wait here, since the user of NvimView cannot subscribe
     // on the Completable. We could demand that the user call launchNeoVim()
     // by themselves, but...

NvimView/Sources/NvimView/NvimView.swift

@@ -165,10 +165,37 @@ public class NvimView: NSView,
     super.init(frame: .zero)
 
     self.api.streamResponses = true
-    self.api.msgpackRawStream.subscribe(onNext: {Swift.print($0)})
+    self.api.msgpackRawStream
+      .subscribe(onNext: { [weak self] msg in
+        switch msg {
+        case let .notification(method, params):
+          self?.log.debug("NOTIFICATION: \(method): \(params)")
+
+          guard method == NvimView.rpcEventName else { return }
+          self?.eventsSubject.onNext(.rpcEvent(params))
+
+        case let .error(_, msg):
+          self?.log.debug("MSG ERROR: \(msg)")
+
+        case let .response(_, error, _):
+          guard let array = error.arrayValue,
+                array.count >= 2,
+                array[0].uint64Value == RxNeovimApi.Error.exceptionRawValue,
+                let errorMsg = array[1].stringValue else { return }
+
+          if errorMsg.contains("Vim(tabclose):E784") { Swift.print("cannot close last tab page!") }
+          if errorMsg.starts(with: "Vim(tabclose):E37") { Swift.print("no write!") }
+
+        default:
+          self?.log.debug("???: This should not happen")
+        }
+      }, onError: {
+        [weak self] error in self?.log.error(error)
+      })
+      .disposed(by: self.disposeBag)
 
     let db = self.disposeBag
-    self.tabBar?.closeHandler = { [weak self] index, _, entries in
+    self.tabBar?.closeHandler = { [weak self] index, _, _ in
       self?.api
         .command(command: "tabclose \(index + 1)")
         .subscribe()

RxPack/Sources/RxPack/RxNeovimApi.generated.swift

@@ -9,8 +9,8 @@ extension RxNeovimApi {
 
   public enum Error: Swift.Error {
 
-    private static let exceptionRawValue = UInt64(0)
-    private static let validationRawValue = UInt64(1)
+    public static let exceptionRawValue = UInt64(0)
+    public static let validationRawValue = UInt64(1)
 
     case exception(message: String)
     case validation(message: String)

RxPack/Sources/RxPack/RxNeovimApi.swift

@@ -33,11 +33,6 @@ public final class RxNeovimApi {
     set { self.msgpackRpc.streamResponses = newValue }
   }
 
-  public var streamRawResponses: Bool {
-    get { self.msgpackRpc.streamResponses }
-    set { self.msgpackRpc.streamResponses = newValue }
-  }
-
   public var msgpackRawStream: Observable<RxMsgpackRpc.Message> { self.msgpackRpc.stream }
 
   public func run(at path: String) -> Completable { self.msgpackRpc.run(at: path) }

RxPack/bin/generate_api_methods.py

@@ -390,7 +390,7 @@ def parse_version(version):
 def parse_error_types(error_types):
     return textwrap.indent(
         '\n'.join(
-            [f'private static let {t.lower()}RawValue = UInt64({v["id"]})' for t, v in error_types.items()]
+            [f'public static let {t.lower()}RawValue = UInt64({v["id"]})' for t, v in error_types.items()]
         ),
         '    '
     ).lstrip()

RxPack/bin/generate_sources.sh

@@ -30,10 +30,10 @@ else
 fi
 
 if [[ "$download" == true ]]; then
-  curl -L -o ./${BUILD_DIR}/nvim-macos.tar.bz2 "https://github.com/neovim/neovim/releases/download/$target_version/nvim-macos.tar.bz2"
+  curl -L -o ./${BUILD_DIR}/nvim-macos.tar.gz "https://github.com/neovim/neovim/releases/download/$target_version/nvim-macos.tar.gz"
   echo "Downloaded $target_version"
   pushd ./${BUILD_DIR}
-  tar xjf nvim-macos.tar.bz2
+  tar xf nvim-macos.tar.gz
   popd
   echo "Extracted $target_version"
 else