From 060463c3a486b8d016be1ec9cd9ed172826586da Mon Sep 17 00:00:00 2001
From: Denis Cornehl <denis@cornehl.org>
Date: Mon, 2 May 2022 14:06:54 +0200
Subject: [PATCH] add RustOpenExternalDocs to open docs.rs or rust docs in the
 browser

---
 README.md                        |  1 +
 lua/rust-tools.lua               |  3 +++
 lua/rust-tools/external_docs.lua | 17 +++++++++++++++++
 3 files changed, 21 insertions(+)
 create mode 100644 lua/rust-tools/external_docs.lua

diff --git a/README.md b/README.md
index 4a33aa1..7cd08fe 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,7 @@ RustDebuggables
 RustViewCrateGraph
 RustReloadWorkspace
 RustSSR
+RustOpenExternalDocs
 ```
 
 ## Standalone File Support
diff --git a/lua/rust-tools.lua b/lua/rust-tools.lua
index 700e629..7ebbe36 100644
--- a/lua/rust-tools.lua
+++ b/lua/rust-tools.lua
@@ -15,6 +15,9 @@ local function setup_commands()
     RustSetInlayHints = {
       require("rust-tools.inlay_hints").set_inlay_hints,
     },
+    RustOpenExternalDocs= {
+      require("rust-tools.external_docs").open_external_docs,
+    },
     RustDisableInlayHints = {
       require("rust-tools.inlay_hints").disable_inlay_hints,
     },
diff --git a/lua/rust-tools/external_docs.lua b/lua/rust-tools/external_docs.lua
new file mode 100644
index 0000000..d633e12
--- /dev/null
+++ b/lua/rust-tools/external_docs.lua
@@ -0,0 +1,17 @@
+local M = {}
+local utils = require("rust-tools.utils.utils")
+
+function M.open_external_docs()
+  utils.request(
+    0,
+    "experimental/externalDocs",
+    vim.lsp.util.make_position_params(),
+    function(_, url)
+      if url then
+        vim.fn["netrw#BrowseX"](url, 0)
+      end
+    end
+  )
+end
+
+return M