From 0c5c3a11be0a74a151618f10a6452e1b4a534265 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Wed, 3 Oct 2018 09:15:09 -0700
Subject: [PATCH] Add completion.maxNum: 100

---
 src/clang_tu.cc                         | 2 --
 src/config.h                            | 6 +++++-
 src/messages/textDocument_completion.cc | 6 +++---
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/clang_tu.cc b/src/clang_tu.cc
index ef717981..9812799b 100644
--- a/src/clang_tu.cc
+++ b/src/clang_tu.cc
@@ -10,8 +10,6 @@
 #include <clang/Lex/Lexer.h>
 #include <llvm/Support/Path.h>
 
-#include <mutex>
-
 using namespace clang;
 
 std::string PathFromFileEntry(const FileEntry &file) {
diff --git a/src/config.h b/src/config.h
index 2e9ce8ee..a463bd2a 100644
--- a/src/config.h
+++ b/src/config.h
@@ -118,6 +118,9 @@ struct Config {
     // that implement their own filtering and sorting logic.
     bool filterAndSort = true;
 
+    // Maxmum number of results.
+    int maxNum = 100;
+
     struct Include {
       // Regex patterns to match include completion candidates against. They
       // receive the absolute file path.
@@ -248,7 +251,8 @@ MAKE_REFLECT_STRUCT(Config::CodeLens, localVariables);
 MAKE_REFLECT_STRUCT(Config::Completion::Include, blacklist, maxPathSize,
                     suffixWhitelist, whitelist);
 MAKE_REFLECT_STRUCT(Config::Completion, caseSensitivity, detailedLabel,
-                    dropOldRequests, duplicateOptional, filterAndSort, include);
+                    dropOldRequests, duplicateOptional, filterAndSort, include,
+                    maxNum);
 MAKE_REFLECT_STRUCT(Config::Diagnostics, blacklist, onChange, onOpen, onSave,
                     spellChecking, whitelist)
 MAKE_REFLECT_STRUCT(Config::Highlight, largeFileSize, lsRanges, blacklist,
diff --git a/src/messages/textDocument_completion.cc b/src/messages/textDocument_completion.cc
index 2b62af70..4a301ec2 100644
--- a/src/messages/textDocument_completion.cc
+++ b/src/messages/textDocument_completion.cc
@@ -170,9 +170,9 @@ void FilterAndSortCompletionResponse(
   auto &items = complete_response->result.items;
 
   auto finalize = [&]() {
-    const size_t kMaxResultSize = 100u;
-    if (items.size() > kMaxResultSize) {
-      items.resize(kMaxResultSize);
+    int max_num = g_config->completion.maxNum;
+    if (items.size() > max_num) {
+      items.resize(max_num);
       complete_response->result.isIncomplete = true;
     }