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#include "qv4graph_p.h"
#include "qv4operation_p.h"

QT_REQUIRE_CONFIG(qml_tracing);

QT_BEGIN_NAMESPACE
namespace QV4 {
namespace IR {

Graph *Graph::create(Function *function)
{
    auto storage = function->pool()->allocate(sizeof(Graph));
    auto g = new (storage) Graph(function);
    g->m_undefinedNode = g->createNode(g->opBuilder()->get<Meta::Undefined>());
    g->m_emptyNode = g->createNode(g->opBuilder()->get<Meta::Empty>());
    g->m_nullNode = g->createNode(g->opBuilder()->getConstant(QV4::Value::nullValue()));
    g->m_trueNode = g->createNode(g->opBuilder()->getConstant(QV4::Value::fromBoolean(true)));
    g->m_falseNode = g->createNode(g->opBuilder()->getConstant(QV4::Value::fromBoolean(false)));
    return g;
}

Graph::MemoryPool *Graph::pool() const
{
    return m_function->pool();
}

Node *Graph::createNode(const Operation *op, Node *const operands[], size_t opCount,
                        bool incomplete)
{
    return Node::create(pool(), m_nextNodeId++, op, opCount, operands, incomplete);
}

Node *Graph::createConstantBoolNode(bool value)
{
    return createNode(opBuilder()->getConstant(Primitive::fromBoolean(value)));
}

Node *Graph::createConstantIntNode(int value)
{
    return createNode(opBuilder()->getConstant(Primitive::fromInt32(value)));
}

Graph::Graph(Function *function)
    : m_function(function)
    , m_opBuilder(OperationBuilder::create(pool()))
{}

Node *Graph::createConstantHeapNode(Heap::Base *heap)
{
    return createNode(opBuilder()->getConstant(Primitive::fromHeapObject(heap)));
}

void Graph::addEndInput(Node *n)
{
    if (m_endNode) {
        auto newEnd = m_opBuilder->getEnd(m_endNode->operation()->controlInputCount() + 1);
        m_endNode->setOperation(newEnd);
        m_endNode->addInput(m_function->pool(), n);
    }
}

} // IR namespace
} // QV4 namespace
QT_END_NAMESPACE