Rearrange code and cleanup

src/editor/editor.cc

@@ -0,0 +1,79 @@
+#include "editor/editor.h"
+#include "lsp/lsp.h"
+#include "utils/utils.h"
+
+Editor *new_editor(const char *filename_arg, Coord position, Coord size) {
+  Editor *editor = new Editor();
+  if (!editor)
+    return nullptr;
+  uint32_t len = 0;
+  std::string filename = path_abs(filename_arg);
+  char *str = load_file(filename.c_str(), &len);
+  if (!str) {
+    free_editor(editor);
+    return nullptr;
+  }
+  editor->filename = filename;
+  editor->uri = path_to_file_uri(filename);
+  editor->position = position;
+  editor->size = size;
+  editor->cursor_preffered = UINT32_MAX;
+  if (len == 0) {
+    free(str);
+    str = (char *)malloc(1);
+    *str = '\n';
+    len = 1;
+  }
+  editor->root = load(str, len, optimal_chunk_size(len));
+  free(str);
+  Language language = language_for_file(filename.c_str());
+  if (language.name != "unknown" && len <= (1024 * 128)) {
+    editor->ts.parser = ts_parser_new();
+    editor->ts.language = language.fn();
+    ts_parser_set_language(editor->ts.parser, editor->ts.language);
+    editor->ts.query_file =
+        get_exe_dir() + "/../grammar/" + language.name + ".scm";
+    request_add_to_lsp(language, editor);
+  }
+  return editor;
+}
+
+void free_tsset(TSSetMain *set) {
+  if (set->parser)
+    ts_parser_delete(set->parser);
+  if (set->tree)
+    ts_tree_delete(set->tree);
+  if (set->query)
+    ts_query_delete(set->query);
+  for (auto &inj : set->injections) {
+    if (inj.second.parser)
+      ts_parser_delete(inj.second.parser);
+    if (inj.second.query)
+      ts_query_delete(inj.second.query);
+    if (inj.second.tree)
+      ts_tree_delete(inj.second.tree);
+  }
+}
+
+void free_editor(Editor *editor) {
+  remove_from_lsp(editor);
+  free_tsset(&editor->ts);
+  free_rope(editor->root);
+  delete editor;
+}
+
+void save_file(Editor *editor) {
+  if (!editor || !editor->root)
+    return;
+  char *str = read(editor->root, 0, editor->root->char_count);
+  if (!str)
+    return;
+  std::ofstream out(editor->filename);
+  out.write(str, editor->root->char_count);
+  free(str);
+  json msg = {{"jsonrpc", "2.0"},
+              {"method", "textDocument/didSave"},
+              {"params", {{"textDocument", {{"uri", editor->uri}}}}}};
+  if (editor->lsp)
+    lsp_send(editor->lsp, msg, nullptr);
+}