ctrump/parser/ArrayType.hpp

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/*
 Copyright (c) 2009, National Institute of Advanced Industrial Science
 and Technology.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
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     notice, this list of conditions and the following disclaimer.
 
   * 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.
 
   * Neither the name of Fixstars Corporation nor the names of its
     contributors may be used to endorse or promote products derived
     from this software without specific prior written permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 "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 COPYRIGHT
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*/

#ifndef CFRONT_ARRAY_TYPE_HPP
#define CFRONT_ARRAY_TYPE_HPP

namespace cfront {

class ArrayType : public Type {
public:

    enum LengthSpec {
        NOT_SPECIFIED,
        FIXED, 
        VARIABLE, 
        VARIABLE_NOT_SPECIFIED, 
        INCOMPLETE 
    };

    ArrayType(const Type* baseType, QualFlags qualFlags, LengthSpec lengthSpec)
        : baseType_(baseType), lengthValue_(ConstantUnspecified),
          qualFlags_(qualFlags), lengthSpec_(lengthSpec) {}
    ArrayType(const Type* baseType, ConstantValue& lengthValue, 
              QualFlags qualFlags)
        : baseType_(baseType), lengthValue_(lengthValue),
          qualFlags_(qualFlags), lengthSpec_(FIXED) {}
    ArrayType(const ArrayType& other)
        : Type(other), baseType_(other.baseType_),
          lengthValue_(other.lengthValue_), qualFlags_(other.qualFlags_),
          lengthSpec_(lengthSpec_) {}

    virtual ~ArrayType() {}

    virtual ArrayType* clone() const
    {
        return new ArrayType(*this);
    }

    virtual bool isCompatibleType(const Type* other) const
    {
        const ArrayType* po = dynamic_cast<const ArrayType*>(other);
        if (po == NULL) return false;
        return baseType_->isCompatibleType(po->baseType_);
    }

    virtual size_t getSize(const TargetInfo& targetInfo) const
    {
        /* FIXME : vla */
        return getBaseType()->getSize(targetInfo) * getLengthValue();
    }

    virtual size_t getAlign(const TargetInfo& targetInfo) const
    {
        return getBaseType()->getAlign(targetInfo);
    }

    const Type* getBaseType() const
    {
        return baseType_;
    }

    const ConstantValue& getLengthValue() const
    {
        return lengthValue_;
    }

    QualFlags getQualFlags() const
    {
        return qualFlags_;
    }

    LengthSpec getLengthSpec() const
    {
        return lengthSpec_;
    }

    void setBaseType(const Type* t)
    {
        baseType_ = t;
    }

    void setLengthValue(const ConstantValue lengthValue)
    {
        lengthValue_ = lengthValue;
    }

#ifdef PARSER_DEBUG
    virtual std::string toString() const
    {
        std::stringstream ss;
        ss << "ArrayType[ " << lengthValue_ << ":" << baseType_->toString() <<
            " (" << toStringQualFlags(qualFlags_) << ")]";
        return ss.str();
    }
#endif

protected:
    const Type* baseType_;
    ConstantValue lengthValue_;
    QualFlags qualFlags_;
    LengthSpec lengthSpec_;
};

} // namespace cfront

#endif


/*
 * Local Variables:
 * mode: C++
 * c-basic-offset: 4
 * indent-tabs-mode: nil
 * End:
 */

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