/* Metallurgy - Higher Level Interface to Chordata
 * Copyright (C) 2001-2002  Jay Freeman (saurik)
*/

/*
 *        Redistribution and use in source and binary
 * forms, with or without modification, are permitted
 * provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the
 *    above copyright notice, this list of conditions
 *    and the following disclaimer in the documentation
 *    and/or other materials provided with the
 *    distribution.
 * 3. The name of the author may not be used to endorse
 *    or promote products derived from this software
 *    without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "stdafx.h"

#include "metallurgy/Signature.h"

#include "chordata/Flags.h"
using namespace Chordata::Flags;

#include "chordata/Utils.h"
using namespace Chordata::Utils;

namespace Metallurgy {

Signature::Signature(const Module *module, const Chordata::Signature * &blob, uint32_t length) :
	module(module),
	blob(blob),
	length(length),
	ereturn(NULL),
	ethis(NULL),
	count(0)
{
	//const Chordata::Signature *current = blob/*, *end = blob + length*/;

	convention = Uncompress<uint32_t>(blob);

	if (IsCallingConvention(convention, CallingConvention::Field))
		elements.push_back(new Element(module, blob));
	else {
		count = Uncompress<uint32_t>(blob);

		if (!IsCallingConvention(convention, CallingConvention::LocalSignature)) {
			ereturn = new Element(module, blob);
			if (convention & CallingConvention::ExplicitThis)
				ethis = new Element(module, blob);
		}

		//while (blob != end)
		for (uint32_t i(0); i < count; i++)
			elements.push_back(new Element(module, blob));
	}
}

Signature::~Signature() {
	for (ElementVector::iterator element = elements.begin(); element != elements.end(); element++)
		delete *element;
	delete ereturn;
	delete ethis;
}

bool Signature::isField() const {
	return IsCallingConvention(convention, CallingConvention::Field);
}

bool Signature::getHasThis() const {
	return (convention & CallingConvention::HasThis) != 0;
}

const Element *Signature::getReturn() const {
	return ereturn;
}

const Element *Signature::getThis() const {
	return ethis;
}

const ElementVector &Signature::getElements() const {
	return elements;
}

const Element *Signature::getElement(int which) const {
	return elements[which];
}

uint32_t Signature::getCount() const {
	return count;
}

const Chordata::Signature *Signature::getBlob() const {
	return blob;
}

uint32_t Signature::getLength() const {
	return length;
}

}