visitBlock method

@override dynamic visitBlock(BlockStatement node)

Implementation

@override
visitBlock(BlockStatement node) {
  dynamic rtn;
  final lexicalContext = _LexicalContext();
  for (Statement stmt in node.body) {
    if (stmt is VariableDeclaration && stmt.kind != 'var') {
      for (final declarator in stmt.declarations) {
        for (final name in _bindingNames(declarator.name)) {
          lexicalContext.declare(name.value, mutable: stmt.kind != 'const');
        }
      }
    }
  }
  _lexicalContexts.add(lexicalContext);
  // Hoist function declarations in this block before executing statements.
  try {
    for (Statement stmt in node.body) {
      if (stmt is FunctionDeclaration && stmt.function.name != null) {
        addToThisContext(
            stmt.function.name!, visitFunctionNode(stmt.function));
      }
    }
    for (Node stmt in node.body) {
      rtn = stmt.visitBy(this);
    }
    return rtn;
  } finally {
    _lexicalContexts.removeLast();
  }
}