Type.cpp

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/* src/vm/jit/compiler2/Type.cpp - Types used in the 2nd stage compiler IR

   Copyright (C) 2013
   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO

   This file is part of CACAO.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.

*/

#include "vm/jit/compiler2/Type.hpp"
#include "toolbox/OStream.hpp"
#include "toolbox/logging.hpp"
#include "vm/os.hpp"

#include <cassert>

namespace cacao {
namespace jit {
namespace compiler2 {

// conversion functions
const char * get_var_type(int type)
{
    switch(type) {
    case TYPE_INT: return "TYPE_INT";
    case TYPE_LNG: return "TYPE_LNG";
    case TYPE_FLT: return "TYPE_FLT";
    case TYPE_DBL: return "TYPE_DBL";
    case TYPE_ADR: return "TYPE_ADR";
    case TYPE_RET: return "TYPE_RET";
    case TYPE_VOID: return "TYPE_VOID";
    }
    return "(unknown type)";
}

Type::TypeID convert_var_type(int type)
{
    switch(type) {
    case TYPE_INT:  return Type::IntTypeID;
    case TYPE_LNG:  return Type::LongTypeID;
    case TYPE_FLT:  return Type::FloatTypeID;
    case TYPE_DBL:  return Type::DoubleTypeID;
    case TYPE_VOID: return Type::VoidTypeID;
    case TYPE_ADR:  return Type::ReferenceTypeID; // XXX is this right?
    case TYPE_RET:
    default: /* do nothing */ ;
    }
    ABORT_MSG("Type not supported", "type: " << get_var_type(type) << " (0x" << setz(2) << hex << type << dec << ") "
          << " not yet supported!");
    //assert( 0 && "Unsupported type");
    return Type::VoidTypeID;
}

OStream& operator<<(OStream &OS, const Type::TypeID &type) {
    switch(type) {
        case Type::PrimitiveTypeID: return OS << "PrimitiveTypeID";
        case Type::ReferenceTypeID: return OS << "ReferenceTypeID";
        case Type::NumericTypeID: return OS << "NumericTypeID";
        case Type::BooleanTypeID: return OS << "BooleanTypeID";
        case Type::ReturnAddressTypeID: return OS << "ReturnAddressTypeID";
        case Type::IntegralTypeID: return OS << "IntegralTypeID";
        case Type::FloatingPointTypeID: return OS << "FloatingPointTypeID";
        case Type::ByteTypeID: return OS << "ByteTypeID";
        case Type::ShortTypeID: return OS << "ShortTypeID";
        case Type::IntTypeID: return OS << "IntTypeID";
        case Type::LongTypeID: return OS << "LongTypeID";
        case Type::CharTypeID: return OS << "CharTypeID";
        case Type::FloatTypeID: return OS << "FloatTypeID";
        case Type::DoubleTypeID: return OS << "DoubleTypeID";
        case Type::GlobalStateTypeID: return OS << "GlobalStateTypeID";
        case Type::VoidTypeID: return OS << "VoidTypeID";
    }
    os::shouldnotreach();
    return OS;
}
const char* get_type_name(const Type::TypeID &type) {
    switch(type) {
        case Type::PrimitiveTypeID: return "PrimitiveTypeID";
        case Type::ReferenceTypeID: return "ReferenceTypeID";
        case Type::NumericTypeID: return "NumericTypeID";
        case Type::BooleanTypeID: return "BooleanTypeID";
        case Type::ReturnAddressTypeID: return "ReturnAddressTypeID";
        case Type::IntegralTypeID: return "IntegralTypeID";
        case Type::FloatingPointTypeID: return "FloatingPointTypeID";
        case Type::ByteTypeID: return "ByteTypeID";
        case Type::ShortTypeID: return "ShortTypeID";
        case Type::IntTypeID: return "IntTypeID";
        case Type::LongTypeID: return "LongTypeID";
        case Type::CharTypeID: return "CharTypeID";
        case Type::FloatTypeID: return "FloatTypeID";
        case Type::DoubleTypeID: return "DoubleTypeID";
        case Type::GlobalStateTypeID: return "GlobalStateTypeID";
        case Type::VoidTypeID: return "VoidTypeID";
    }
    return "UnknownType";
}
#if 0
/**
 * Type Class
 *
 * See JVM spec 2.2
 */
class Type {
public:
    static int ID;
};

class PrimitiveType : public Type {
};

class ReferenceType : public Type {
};


class NumericType : public PrimitiveType {
};


/**
 * The values of the boolean type encode the truth values true and false,
 * and the default value is false. 
 */
class BooleanType : public PrimitiveType {
};

/**
 * The values of the returnAddress type are pointers to the opcodes of Java
 * Virtual Machine instructions. Of the primitive types, only the returnAddress
 * type is not directly associated with a Java programming language type. 
 */
class ReturnAddressType : public PrimitiveType {
};


class IntegralType : public NumericType {
};
class FloatingPointType : public NumericType {
};

/**
 * whose values are 8-bit signed two's-complement integers, and whose default value is zero
 */
class ByteType : public IntegralType {
};

/**
 * whose values are 16-bit signed two's-complement integers, and whose default value is zero
 */
class ShortType : public IntegralType {
};

/**
 * whose values are 32-bit signed two's-complement integers, and whose default value is zero
 */
class IntType : public IntegralType {
};

/**
 * whose values are 64-bit signed two's-complement integers, and whose default value is zero
 */
class LongType : public IntegralType {
};

/**
 * whose values are 16-bit unsigned integers representing Unicode code points
 * in the Basic Multilingual Plane, encoded with UTF-16, and whose default value
 * is the null code point ('\u0000') 
 */
class CharType : public IntegralType {
};


/**
 * whose values are elements of the float value set or, where supported, the
 * float-extended-exponent value set, and whose default value is positive zero
 */
class FloatType : public FloatingPointType {
};

/**
 * whose values are elements of the double value set or, where supported, the
 * double-extended-exponent value set, and whose default value is positive zero
 */
class DoubleType : public FloatingPointType {
};
#endif


} // end namespace cacao
} // end namespace jit
} // end namespace compiler2

/*
 * These are local overrides for various environment variables in Emacs.
 * Please do not remove this and leave it at the end of the file, where
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