From c08a86c33e43bf90e474b17151acc47893979bf5 Mon Sep 17 00:00:00 2001
From: ZeWaka <zewakagamer@gmail.com>
Date: Tue, 15 Sep 2026 18:40:34 -0700
Subject: [PATCH] removes `FoldingRangeRequest`

support in SpaceManiac/vscode-dm-langclient#63, as dont currently it overrides the indentation-based defaults
---
 crates/dm-langserver/src/main.rs | 49 --------------------------------
 1 file changed, 49 deletions(-)

diff --git a/crates/dm-langserver/src/main.rs b/crates/dm-langserver/src/main.rs
index 5dcb447d..3de8aafc 100644
--- a/crates/dm-langserver/src/main.rs
+++ b/crates/dm-langserver/src/main.rs
@@ -1358,7 +1358,6 @@ impl Engine {
         Completion;
         SignatureHelpRequest;
         DocumentSymbolRequest;
-        FoldingRangeRequest;
         DocumentColor;
         ColorPresentationRequest;
         DocumentLinkRequest;
@@ -1438,7 +1437,6 @@ impl Engine {
                     work_done_progress_options: Default::default(),
                 }),
                 color_provider: Some(ColorProviderCapability::Simple(true)),
-                folding_range_provider: Some(FoldingRangeProviderCapability::Simple(true)),
                 ..Default::default()
             },
             server_info: Some(ServerInfo {
@@ -2296,37 +2294,6 @@ impl Engine {
         }
     }
 
-    fn FoldingRangeRequest(&mut self, params: P<FoldingRangeRequest>) -> R<FoldingRangeRequest> {
-        let content = self
-            .docs
-            .get_contents(&params.text_document.uri)
-            .map_err(invalid_request)?;
-
-        let mut region_starts = Vec::new();
-        let mut ranges = Vec::new();
-
-        for (index, line) in content.lines().enumerate() {
-            let line = line.trim_start();
-            let line_number = index as u32;
-
-            if is_region_marker(line, "#region") {
-                region_starts.push(line_number);
-            } else if is_region_marker(line, "#endregion")
-                && let Some(start_line) = region_starts.pop()
-            {
-                ranges.push(FoldingRange {
-                    start_line,
-                    end_line: line_number,
-                    start_character: None,
-                    end_character: None,
-                    kind: Some(FoldingRangeKind::Region),
-                });
-            }
-        }
-
-        Ok(Some(ranges))
-    }
-
     fn DocumentColor(&mut self, params: P<DocumentColor>) -> R<DocumentColor> {
         let content = self
             .docs
@@ -2589,22 +2556,6 @@ fn path_to_url(path: PathBuf) -> Result<Url, jsonrpc::Error> {
     Url::from_file_path(path).map_err(|_| invalid_request(format!("bad file path: {formatted}")))
 }
 
-fn is_region_marker(line: &str, marker: &str) -> bool {
-    let Some(comment) = line.strip_prefix("//") else {
-        return false;
-    };
-
-    let rest = comment.strip_prefix(' ').unwrap_or(comment);
-    let Some(suffix) = rest.strip_prefix(marker) else {
-        return false;
-    };
-
-    match suffix.chars().next() {
-        None => true,
-        Some(ch) => ch.is_whitespace(),
-    }
-}
-
 fn convert_severity(severity: dm::Severity) -> lsp_types::DiagnosticSeverity {
     match severity {
         dm::Severity::Error => lsp_types::DiagnosticSeverity::ERROR,