visitWhileLoopStmt method

@override Object? visitWhileLoopStmt(WhileLoopStmt whileLoopStmt)

Implementation

@override
Object? visitWhileLoopStmt(WhileLoopStmt whileLoopStmt) {
  while (true) {
    final prevScope = scope;
    pushScope();
    try {
      final cond = switch (whileLoopStmt.expr.accept(this)) {
        final List ls => ls.firstOrNull?.isTruthy,
        final Object? o => o.isTruthy,
      };

      if (!cond) break;

      for (Stmt stmt in whileLoopStmt.body) {
        try {
          stmt.accept(this);
        } on LuaBreakStmtException {
          rethrow;
        } catch (e) {
          addError(e.toString());
        }
      }
    } on LuaBreakStmtException {
      break;
    } catch (e) {
      rethrow;
    } finally {
      restoreScope(prevScope);
    }
  }
  return null;
}