Basic completion support

include/editor/completions.h

@@ -4,38 +4,35 @@
 #include "editor/decl.h"
 #include "pch.h"
 #include "ui/completionbox.h"
+#include "ui/hover.h"
 #include "utils/utils.h"
 
 struct CompletionItem {
-  std::string label;                        // Shown in the autocomplete box
-  uint8_t kind;                             // Function, variable, class, etc.
-  std::optional<std::string> detail;        // Shown greyed in autocomplete box
-  std::optional<std::string> documentation; // Hover box (can be lazy-loaded)
+  std::string label;
+  uint8_t kind;
+  std::optional<std::string> detail;
+  std::optional<std::string> documentation;
   bool is_markup = false;
-  bool deprecated = false; // Shown with strikethrough, may push down in list
-  std::string sort;        // Used for sorting
-  std::string filter;      // Used for filtering (default: label)
+  bool deprecated = false;
+  std::string sort;
+  std::string filter;
   bool snippet = false;
   std::vector<TextEdit> edits;
   json original;
-  std::vector<char> end_chars; // Ends completion session if typed
+  std::vector<char> end_chars;
 };
 
 struct CompletionSession {
   std::shared_mutex mtx;
-
   bool active = false;
-  Coord hook;                        // set to start of word
-  std::optional<std::string> prefix; // text between hook and cursor
-  uint8_t select = 0; // index of selected item (defualts to preselcted one
-                      // when data requested)
+  Coord hook;
+  std::optional<std::string> prefix;
+  uint8_t select = 0;
   std::vector<CompletionItem> items;
   std::vector<uint8_t> visible;
-  bool complete = true; // If false, client may request more items on filter
-                        // (but doesnt try filtering on its own)
-  std::optional<char> trigger_char; // Character that triggered completion sent
-                                    // to lsp for isIncomplete resolving
-  uint8_t trigger = 0; // Type of trigger (1: manual, 2: trigger char, 3: auto)
+  bool complete = true;
+  std::optional<char> trigger_char;
+  uint8_t trigger = 0;
   CompletionBox box;
 
   CompletionSession() : box(this) {}