Emit No-op Code Action

While nvim looks for code actions on-demand, VS Code pulls them regularly
and is strict about errors that can kill the LSP. This change emits a
no-op code action instead of an error, which is now the correct semantic.

src/code_action_providers/lua/provider.rs

@@ -15,7 +15,6 @@ use crate::server::ResolveAction;
 
 use super::bindings::LuaInterface;
 
-
 pub struct LuaProvider {
     prompt_handler: Arc<Llm>,
     lua_source: String,

src/code_action_providers/yaml/provider.rs

@@ -11,6 +11,7 @@ use crate::code_action_providers::traits::ActionContext;
 use crate::code_action_providers::traits::ActionProvider;
 use crate::code_action_providers::{helper, parsed_document::ParsedDocument};
 use crate::llm_handlers::traits::Llm;
+use crate::server::nop_codeaction;
 use crate::server::ResolveAction;
 
 use super::config;
@@ -117,7 +118,7 @@ impl ActionProvider for YamlProvider {
                 }
             }
         }
-        return Err(Error::new(tower_lsp::jsonrpc::ErrorCode::ParseError));
+        return Ok(nop_codeaction());
     }
     fn create_code_action(
         &self,

src/server.rs

@@ -48,6 +48,19 @@ impl std::fmt::Debug for Backend {
     }
 }
 
+pub fn nop_codeaction() -> CodeAction {
+    CodeAction {
+        title: "cancel".to_owned(),
+        kind: None,
+        diagnostics: None,
+        edit: None,
+        command: None,
+        is_preferred: None,
+        disabled: None,
+        data: None,
+    }
+}
+
 #[tower_lsp::async_trait]
 impl LanguageServer for Backend {
     async fn initialize(&self, _: InitializeParams) -> Result<InitializeResult> {