feat(lsp): accept option to disable code lens

tooling/lsp/src/requests/mod.rs

@@ -4,6 +4,8 @@ use crate::types::{CodeLensOptions, InitializeParams};
 use async_lsp::ResponseError;
 use lsp_types::{Position, TextDocumentSyncCapability, TextDocumentSyncKind};
 use nargo_fmt::Config;
+use serde::{Deserialize, Serialize};
+
 
 use crate::{
     types::{InitializeResult, NargoCapability, NargoTestsOptions, ServerCapabilities},
@@ -32,16 +34,47 @@ pub(crate) use {
     test_run::on_test_run_request, tests::on_tests_request,
 };
 
+#[derive(Debug, Deserialize, Serialize)]
+struct LspInitializationOptions {
+
+    #[serde(rename = "enableCodeLens", default = "default_enable_code_lens")]
+    enable_code_lens: bool,
+}
+
+fn default_enable_code_lens() -> bool {
+    true
+}
+
+impl Default for LspInitializationOptions {
+    fn default() -> Self {
+        Self {
+            enable_code_lens: default_enable_code_lens(),
+        }
+    }
+}
+
 pub(crate) fn on_initialize(
     state: &mut LspState,
     params: InitializeParams,
 ) -> impl Future<Output = Result<InitializeResult, ResponseError>> {
+
     state.root_path = params.root_uri.and_then(|root_uri| root_uri.to_file_path().ok());
 
-    async {
+    let initialization_options = match params.initialization_options {
+        Some(initialization_options) => serde_json::from_value::<LspInitializationOptions>(initialization_options).unwrap_or_default(),
+        None => LspInitializationOptions::default(),
+    };
+
+    async move {
         let text_document_sync = TextDocumentSyncCapability::Kind(TextDocumentSyncKind::FULL);
 
-        let code_lens = CodeLensOptions { resolve_provider: Some(false) };
+
+        let code_lens = match initialization_options.enable_code_lens {
+            true => Some(CodeLensOptions { resolve_provider: Some(false) }),
+            false => None,
+        };
+
+        CodeLensOptions { resolve_provider: Some(false) };
 
         let nargo = NargoCapability {
             tests: Some(NargoTestsOptions {
@@ -54,7 +87,7 @@ pub(crate) fn on_initialize(
         Ok(InitializeResult {
             capabilities: ServerCapabilities {
                 text_document_sync: Some(text_document_sync),
-                code_lens_provider: Some(code_lens),
+                code_lens_provider: code_lens,
                 document_formatting_provider: true,
                 nargo: Some(nargo),
                 definition_provider: Some(lsp_types::OneOf::Left(true)),