// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "intermediate.h"

namespace search::query {

Intermediate::~Intermediate() {
    for (size_t i = 0; i < _children.size(); ++i) {
        delete _children[i];
    }
}

Intermediate &
Intermediate::append(Node::UP child)
{
    _children.push_back(child.release());
    return *this;
}

Intermediate &
Intermediate::prepend(Node::UP child)
{
    _children.insert(_children.begin(), child.release());
    return *this;
}

Node::UP
Intermediate::stealFirst()
{
    if ( _children.empty()) {
        return Node::UP();
    }
    Node::UP first(_children.front());
    _children.erase(_children.begin());
    return first;
}

}