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C++ ExpressionPtr::setCanonPtr方法代码示例

本文整理汇总了C++中ExpressionPtr::setCanonPtr方法的典型用法代码示例。如果您正苦于以下问题:C++ ExpressionPtr::setCanonPtr方法的具体用法?C++ ExpressionPtr::setCanonPtr怎么用?C++ ExpressionPtr::setCanonPtr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ExpressionPtr的用法示例。


在下文中一共展示了ExpressionPtr::setCanonPtr方法的3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: clearCanonPtrs

/*
 * We can end up with chains of canonPtrs keeping the
 * elements of an ExpressionList alive, with the result
 * that when they are finally destroyed, they are destroyed
 * one by one, recursively.
 * This proactively clears them.
 */
static void clearCanonPtrs(ExpressionPtr e) {
  e->setCanonPtr(ExpressionPtr{});
  for (int i = e->getKidCount(); i--; ) {
    ExpressionPtr kid = e->getNthExpr(i);
    if (kid && !kid->is(Expression::KindOfExpressionList)) {
      clearCanonPtrs(kid);
    }
  }
}
开发者ID:AmritanshuRanjan,项目名称:hhvm,代码行数:16,代码来源:expression_list.cpp

示例2: getCanonical

ExpressionPtr AliasManager::getCanonical(ExpressionPtr e) {
  unsigned val = (e->getCanonHash() % MaxBuckets) + 1;

  BucketMapEntry &em = m_bucketMap[val];

  ExpressionPtr c = em.find(e);

  if (!c) {
    add(em, e);
    c = e;
    e->setCanonPtr(ExpressionPtr());
  } else {
    e->setCanonID(c->getCanonID());
    e->setCanonPtr(c);
  }

  return c;
}
开发者ID:scottmac,项目名称:hiphop-dev,代码行数:18,代码来源:alias_manager.cpp

示例3: canonicalizeNode

ExpressionPtr AliasManager::canonicalizeNode(ExpressionPtr e) {
  e->setCanonPtr(ExpressionPtr());
  e->setCanonID(0);

  switch (e->getKindOf()) {
  case Expression::KindOfObjectMethodExpression:
  case Expression::KindOfDynamicFunctionCall:
  case Expression::KindOfSimpleFunctionCall:
  case Expression::KindOfNewObjectExpression:
    add(m_bucketMap[0], e);
    break;

  case Expression::KindOfListAssignment:
    add(m_bucketMap[0], e);
    break;

  case Expression::KindOfAssignmentExpression: {
    AssignmentExpressionPtr ae = spc(AssignmentExpression,e);
    if (e->getContext() & Expression::DeadStore) {
      Construct::recomputeEffects();
      return ae->getValue();
    }
    ExpressionPtr rep;
    int interf = findInterf(ae->getVariable(), false, rep);
    if (interf == SameAccess) {
      switch (rep->getKindOf()) {
      default:
        break;
      case Expression::KindOfAssignmentExpression:
        {
          AssignmentExpressionPtr a = spc(AssignmentExpression, rep);
          ExpressionPtr value = a->getValue();
          if (a->getValue()->getContext() & Expression::RefValue) {
            break;
          }
        }
      case Expression::KindOfUnaryOpExpression:
      case Expression::KindOfBinaryOpExpression:
        rep->setContext(Expression::DeadStore);
        break;
      }
    }
    add(m_bucketMap[0], e);
    break;
  }

  case Expression::KindOfConstantExpression:
  case Expression::KindOfSimpleVariable:
  case Expression::KindOfDynamicVariable:
  case Expression::KindOfArrayElementExpression:
  case Expression::KindOfObjectPropertyExpression:
  case Expression::KindOfStaticMemberExpression:
    if (!(e->getContext() & (Expression::AssignmentLHS|
                             Expression::DeepAssignmentLHS|
                             Expression::OprLValue))) {
      if (!(e->getContext() & (Expression::LValue|
                               Expression::RefValue|
                               Expression::RefParameter|
                               Expression::UnsetContext))) {
        ExpressionPtr rep;
        int interf = findInterf(e, true, rep);
        if (interf == SameAccess) {
          if (rep->getKindOf() == e->getKindOf()) {
            e->setCanonID(rep->getCanonID());
            e->setCanonPtr(rep);
            return ExpressionPtr();
          }
          if (rep->getKindOf() == Expression::KindOfAssignmentExpression) {
            ExpressionPtr rhs = spc(AssignmentExpression,rep)->getValue();
            if (rhs->is(Expression::KindOfScalarExpression)) {
              rhs = rhs->clone();
              getCanonical(rhs);
              return rhs;
            }
            e->setCanonPtr(rhs);
          }
        }
      }
      add(m_bucketMap[0], e);
    } else {
      getCanonical(e);
    }
    break;

  case Expression::KindOfBinaryOpExpression: {
    BinaryOpExpressionPtr bop = spc(BinaryOpExpression, e);

    int rop = getOpForAssignmentOp(bop->getOp());
    if (rop) {
      ExpressionPtr lhs = bop->getExp1();
      ExpressionPtr rep;
      if (bop->getContext() & Expression::DeadStore) {
        Construct::recomputeEffects();
        ExpressionPtr rhs = bop->getExp2()->clone();
        lhs = lhs->clone();
        lhs->clearContext(Expression::LValue);
        lhs->clearContext(Expression::NoLValueWrapper);
        lhs->clearContext(Expression::OprLValue);
        rep = ExpressionPtr
          (new BinaryOpExpression(e->getLocation(),
//.........这里部分代码省略.........
开发者ID:scottmac,项目名称:hiphop-dev,代码行数:101,代码来源:alias_manager.cpp


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