1 files changed, 27 insertions, 0 deletions
diff --git a/script/method/completionItem/resolve.lua b/script/method/completionItem/resolve.lua
new file mode 100644
index 00000000..9909166a
--- /dev/null
+++ b/script/method/completionItem/resolve.lua
@@ -0,0 +1,27 @@
+return function (lsp, item)
+    if not item.data then
+        return item
+    end
+    local offset = item.data.offset
+    local uri   = item.data.uri
+    local _, lines, text = lsp:getVM(uri)
+    if not lines then
+        return item
+    end
+    local row = lines:rowcol(offset)
+    local firstRow = lines[row]
+    local lastRow = lines[math.min(row + 5, #lines)]
+    local snip = text:sub(firstRow.start, lastRow.finish)
+    local document = ([[
+%s
+------------
+```lua
+%s
+```
+]]):format(item.documentation and item.documentation.value or '', snip)
+    item.documentation = {
+        kind  = 'markdown',
+        value = document,
+    }
+    return item
+end