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C++ ConstantExpressionPtr::parseTimeFatal方法代码示例

本文整理汇总了C++中ConstantExpressionPtr::parseTimeFatal方法的典型用法代码示例。如果您正苦于以下问题:C++ ConstantExpressionPtr::parseTimeFatal方法的具体用法?C++ ConstantExpressionPtr::parseTimeFatal怎么用?C++ ConstantExpressionPtr::parseTimeFatal使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ConstantExpressionPtr的用法示例。


在下文中一共展示了ConstantExpressionPtr::parseTimeFatal方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: onParseRecur

void ClassConstant::onParseRecur(AnalysisResultConstPtr ar,
                                 ClassScopePtr scope) {
  ConstantTablePtr constants = scope->getConstants();

  if (scope->isTrait()) {
    parseTimeFatal(Compiler::InvalidTraitStatement,
                   "Traits cannot have constants");
  }

  if (isAbstract()) {
    for (int i = 0; i < m_exp->getCount(); i++) {
      ConstantExpressionPtr exp =
        dynamic_pointer_cast<ConstantExpression>((*m_exp)[i]);
      const std::string &name = exp->getName();
      if (constants->isPresent(name)) {
        exp->parseTimeFatal(Compiler::DeclaredConstantTwice,
                                   "Cannot redeclare %s::%s",
                                   scope->getOriginalName().c_str(),
                                   name.c_str());
      }

      // HACK: break attempts to write global constants here;
      // see ConstantExpression::preOptimize
      exp->setContext(Expression::LValue);

      // Unlike with assignment expression below, nothing needs to be added
      // to the scope's constant table
    }
  } else {
    for (int i = 0; i < m_exp->getCount(); i++) {
      AssignmentExpressionPtr assignment =
        dynamic_pointer_cast<AssignmentExpression>((*m_exp)[i]);

      ExpressionPtr var = assignment->getVariable();
      const std::string &name =
        dynamic_pointer_cast<ConstantExpression>(var)->getName();
      if (constants->isPresent(name)) {
        assignment->parseTimeFatal(Compiler::DeclaredConstantTwice,
                                   "Cannot redeclare %s::%s",
                                   scope->getOriginalName().c_str(),
                                   name.c_str());
      } else {
        if (isTypeconst()) {
          // We do not want type constants to be available at run time.
          // To ensure this we do not want them to be added to the constants
          // table. The constants table is used to inline values for expressions
          // See ClassConstantExpression::preOptimize.
          // AssignmentExpression::onParseRecur essentially adds constants to
          // the constant table so we skip it.
          continue;
        }
        assignment->onParseRecur(ar, scope);
      }
    }
  }
}
开发者ID:191919,项目名称:hhvm,代码行数:56,代码来源:class_constant.cpp


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