Fix build warnings

spec/runtime/stack_spec.cc

@@ -79,7 +79,9 @@ describe("Stack", [&]() {
     );
 
     for (size_t i = 0; i < tree_count; i++)
-      trees[i] = ts_tree_make_leaf(i, ts_length_zero(), tree_len, {});
+      trees[i] = ts_tree_make_leaf(i, ts_length_zero(), tree_len, {
+        true, true, false, true,
+      });
   });
 
   after_each([&]() {

src/compiler/build_tables/build_parse_table.cc

@@ -81,7 +81,7 @@ class ParseTableBuilder {
     mark_fragile_actions();
     remove_duplicate_parse_states();
 
-    parse_table.symbols.insert({ rules::ERROR(), {} });
+    parse_table.symbols.insert({ rules::ERROR(), {true} });
 
     return { parse_table, CompileError::none() };
   }

src/compiler/parse_grammar.cc

@@ -321,7 +321,7 @@ error:
     json_value_free(grammar_json);
   }
 
-  return { "", Grammar{}, error_message };
+  return { "", Grammar(), error_message };
 }
 
 }  // namespace tree_sitter

src/runtime/document.c

@@ -26,7 +26,7 @@ void ts_document_free(TSDocument *self) {
   ts_parser_destroy(&self->parser);
   if (self->tree)
     ts_tree_release(self->tree);
-  ts_document_set_input(self, (TSInput){});
+  ts_document_set_input(self, (TSInput){NULL, NULL, NULL, TSInputEncodingUTF8});
   ts_free(self);
 }
 

src/runtime/parser.c

@@ -281,7 +281,7 @@ static ParseActionResult ts_parser__shift(TSParser *self, int head,
       LOG("merge head:%d", head);
       vector_erase(&self->lookahead_states, head);
       return RemovedStackHead;
-    case StackPushResultContinued:
+    default:
       return UpdatedStackHead;
   }
 }
@@ -473,7 +473,7 @@ static ParseActionResult ts_parser__reduce_error(TSParser *self, int head,
       return FailedToUpdateStackHead;
     case RemovedStackHead:
       return RemovedStackHead;
-    case UpdatedStackHead: {
+    default: {
       StackEntry *entry = ts_stack_head(self->stack, head);
       entry->position = ts_length_add(entry->position, lookahead->padding);
       entry->tree->size = ts_length_add(entry->tree->size, lookahead->padding);

src/runtime/stack.c

@@ -288,7 +288,7 @@ void ts_stack_remove_head(Stack *self, int head_index) {
 
 StackPushResult ts_stack_push(Stack *self, int head_index, TSStateId state,
                               TSTree *tree) {
-  assert(head_index < self->heads.size);
+  assert((size_t)head_index < self->heads.size);
   assert(tree);
 
   TSLength position = ts_tree_total_size(tree);

src/runtime/string_input.c

@@ -38,8 +38,9 @@ TSInput ts_string_input_make(const char *string) {
     .payload = input,
     .read_fn = ts_string_input_read,
     .seek_fn = ts_string_input_seek,
+    .encoding = TSInputEncodingUTF8,
   };
 
 error:
-  return (TSInput){NULL, NULL, NULL};
+  return (TSInput){NULL, NULL, NULL, TSInputEncodingUTF8};
 }