From 2397d9015a3369d60a8f6550412a629d7f96c7be Mon Sep 17 00:00:00 2001
From: Tom Praschan <praschan@mueller-elektronik.de>
Date: Fri, 11 Jun 2021 01:23:55 -0700
Subject: [PATCH 1/2] feat(providers.lsp): Add textDocument/implementation
 support

---
 lua/trouble/providers/init.lua |  1 +
 lua/trouble/providers/lsp.lua  | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/lua/trouble/providers/init.lua b/lua/trouble/providers/init.lua
index 99543e35..cdc3cb99 100644
--- a/lua/trouble/providers/init.lua
+++ b/lua/trouble/providers/init.lua
@@ -9,6 +9,7 @@ M.providers = {
   lsp_workspace_diagnostics = lsp.diagnostics,
   lsp_document_diagnostics = lsp.diagnostics,
   lsp_references = lsp.references,
+  lsp_implementations = lsp.implementations,
   lsp_definitions = lsp.definitions,
   quickfix = qf.qflist,
   loclist = qf.loclist,
diff --git a/lua/trouble/providers/lsp.lua b/lua/trouble/providers/lsp.lua
index 2e7f5efe..4be258af 100644
--- a/lua/trouble/providers/lsp.lua
+++ b/lua/trouble/providers/lsp.lua
@@ -34,6 +34,24 @@ function M.references(win, buf, cb, _options)
   end)
 end
 
+---@return Item[]
+function M.implementations(win, buf, cb, _options)
+  local method = "textDocument/implementation"
+  local params = util.make_position_params(win, buf)
+  params.context = { includeDeclaration = true }
+  lsp.buf_request(buf, method, params, function(err, _method, result, _client_id, _bufnr, _config)
+    if err then
+      util.error("an error happened getting implementation: " .. err)
+      return cb({})
+    end
+    if result == nil or #result == 0 then
+      return cb({})
+    end
+    local ret = util.locations_to_items({ result }, 0)
+    cb(ret)
+  end)
+end
+
 ---@return Item[]
 function M.definitions(win, buf, cb, _options)
   local method = "textDocument/definition"

From f37af0708707cf0e23c4544847074034387849ff Mon Sep 17 00:00:00 2001
From: Tom Praschan <praschan@mueller-elektronik.de>
Date: Fri, 11 Jun 2021 01:25:31 -0700
Subject: [PATCH 2/2] Update README.md for LSP lists

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 929f0508..288feddd 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@ A pretty list for showing diagnostics, references, telescope results, quickfix a
 * pretty list of:
   - LSP Diagnostics
   - LSP references
+  - LSP implementations
+  - LSP definitions
   - quickfix list
   - location list
   - [Telescope](https://github.com/nvim-telescope/telescope.nvim) search results