add symbol picker (#230)

* add symbol picker

use the lsp document_symbol request

* fix errors from merging in master

* add docs for symbol picker

2 files changed, 24 insertions, 0 deletions

diff --git a/helix-lsp/src/client.rs b/helix-lsp/src/client.rs
index 070f90d1..9ca708a7 100644
--- a/helix-lsp/src/client.rs
+++ b/helix-lsp/src/client.rs
@@ -660,4 +660,17 @@ impl Client {
 
         self.call::<lsp::request::References>(params)
     }
+
+    pub fn document_symbols(
+        &self,
+        text_document: lsp::TextDocumentIdentifier,
+    ) -> impl Future<Output = Result<Value>> {
+        let params = lsp::DocumentSymbolParams {
+            text_document,
+            work_done_progress_params: lsp::WorkDoneProgressParams::default(),
+            partial_result_params: lsp::PartialResultParams::default(),
+        };
+
+        self.call::<lsp::request::DocumentSymbolRequest>(params)
+    }
 }
diff --git a/helix-lsp/src/lib.rs b/helix-lsp/src/lib.rs
index e16ad765..cff62492 100644
--- a/helix-lsp/src/lib.rs
+++ b/helix-lsp/src/lib.rs
@@ -138,6 +138,17 @@ pub mod util {
         lsp::Range::new(start, end)
     }
 
+    pub fn lsp_range_to_range(
+        doc: &Rope,
+        range: lsp::Range,
+        offset_encoding: OffsetEncoding,
+    ) -> Option<Range> {
+        let start = lsp_pos_to_pos(doc, range.start, offset_encoding)?;
+        let end = lsp_pos_to_pos(doc, range.end, offset_encoding)?;
+
+        Some(Range::new(start, end))
+    }
+
     pub fn generate_transaction_from_edits(
         doc: &Rope,
         edits: Vec<lsp::TextEdit>,