feat(lsp): option to reuse_win for jump actions (#18577)

1 files changed, 25 insertions, 6 deletions

diff --git a/runtime/lua/vim/lsp/buf.lua b/runtime/lua/vim/lsp/buf.lua
index b0bf2c6e5b..80350bcb71 100644
--- a/runtime/lua/vim/lsp/buf.lua
+++ b/runtime/lua/vim/lsp/buf.lua
@@ -63,26 +63,45 @@ function M.hover()
   request('textDocument/hover', params)
 end
 
+---@private
+local function request_with_options(name, params, options)
+  local req_handler
+  if options then
+    req_handler = function(err, result, ctx, config)
+      local client = vim.lsp.get_client_by_id(ctx.client_id)
+      local handler = client.handlers[name] or vim.lsp.handlers[name]
+      handler(err, result, ctx, vim.tbl_extend('force', config or {}, options))
+    end
+  end
+  request(name, params, req_handler)
+end
+
 --- Jumps to the declaration of the symbol under the cursor.
 ---@note Many servers do not implement this method. Generally, see |vim.lsp.buf.definition()| instead.
 ---
-function M.declaration()
+---@param options table|nil additional options
+---     - reuse_win: (boolean) Jump to existing window if buffer is already open.
+function M.declaration(options)
   local params = util.make_position_params()
-  request('textDocument/declaration', params)
+  request_with_options('textDocument/declaration', params, options)
 end
 
 --- Jumps to the definition of the symbol under the cursor.
 ---
-function M.definition()
+---@param options table|nil additional options
+---     - reuse_win: (boolean) Jump to existing window if buffer is already open.
+function M.definition(options)
   local params = util.make_position_params()
-  request('textDocument/definition', params)
+  request_with_options('textDocument/definition', params, options)
 end
 
 --- Jumps to the definition of the type of the symbol under the cursor.
 ---
-function M.type_definition()
+---@param options table|nil additional options
+---     - reuse_win: (boolean) Jump to existing window if buffer is already open.
+function M.type_definition(options)
   local params = util.make_position_params()
-  request('textDocument/typeDefinition', params)
+  request_with_options('textDocument/typeDefinition', params, options)
 end
 
 --- Lists all the implementations for the symbol under the cursor in the