Refactor ALL the things!

src/parsers/unimplemented.c

@@ -0,0 +1,26 @@
+#include "parser_internal.h"
+
+static HParseResult* parse_unimplemented(void* env, HParseState *state) {
+  (void) env;
+  (void) state;
+  static HParsedToken token = {
+    .token_type = TT_ERR
+  };
+  static HParseResult result = {
+    .ast = &token
+  };
+  return &result;
+}
+
+static const HParserVtable unimplemented_vt = {
+  .parse = parse_unimplemented,
+};
+
+static HParser unimplemented = {
+  .vtable = &unimplemented_vt,
+  .env = NULL
+};
+
+const HParser* h_unimplemented() {
+  return &unimplemented;
+}