ctrump/parser/FieldInclusionType.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
 met:
 
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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
 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef CFRONT_FIELD_INCLUSION_TYPE_HPP
#define CFRONT_FIELD_INCLUSION_TYPE_HPP

#include <vector>

namespace cfront {

struct Field {
    Type* type;
    ConstantValue bitField;
    std::string name;
    Field(Type* t, ConstantValue bf, const std::string& n)
        : type(t), bitField(bf), name(n) {}
    Field(Type* t, const std::string& n)
        : type(t), bitField(ConstantUnspecified), name(n) {}
};

typedef std::vector<Field> Fields;

class SUDefinition : public Type::Definition {
public:
    explicit SUDefinition(const std::string& name) 
        : isIncomplete_(true), env_(NULL), name_(name) {}
    virtual ~SUDefinition() {}

    virtual size_t getSize(const TargetInfo& targetInfo) const = 0;

    size_t getAlign(const TargetInfo& targetInfo) const
    {
        const Fields& fields = this->getFields();
        size_t maxAlign = 1;
        for (Fields::const_iterator i = fields.begin();
             i != fields.end(); ++i) {
            size_t align = i->type->getAlign(targetInfo);
            if (align > maxAlign) {
                maxAlign = align;
            }
        }
        return maxAlign;
    }

    bool isIncomplete() const
    {
        return isIncomplete_;
    }

    const Fields& getFields() const
    {
        return fields_;
    }

    Environment* getEnv() const
    {
        return env_;
    }

    const std::string& getName() const
    {
        return name_;
    }

    void addField(Type* t, ConstantValue bf, const std::string& name)
    {
        fields_.push_back(Field(t, bf, name));
    }

    void setIncomplete(bool b)
    {
        isIncomplete_ = b;
    }

    void setEnv(Environment* env)
    {
        env_ = env;
    }

    void setName(const std::string& name)
    {
        name_ = name;
    }

protected:
    Fields fields_;
    bool isIncomplete_;

    Environment* env_;

    std::string name_;
};


class FieldInclusionType : public Type {
public:
    explicit FieldInclusionType(SUDefinition* def, QualFlags qf = 0)
        : qualFlags_(qf), definition_(def) {}
    FieldInclusionType(const FieldInclusionType& other)
        : Type(other), qualFlags_(other.qualFlags_),
          definition_(other.definition_) {}
    virtual ~FieldInclusionType() {}

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

    virtual bool isCompatibleType(const Type* other) const
    {
        const FieldInclusionType* fo =
            dynamic_cast<const FieldInclusionType*>(other);
        if (fo == NULL) return false;
        return this->definition_ == fo->getDefinition();
    }

    virtual size_t getSize(const TargetInfo& targetInfo) const
    {
        return definition_->getSize(targetInfo);
    }

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

    QualFlags getQualFlags() const
    {
        return qualFlags_;
    }

    SUDefinition* getDefinition() const
    {
        return definition_;
    }

    void setQualFlags(QualFlags qf)
    {
        qualFlags_ = qf;
    }

protected:
    QualFlags qualFlags_;

    SUDefinition* definition_;

};

} // namespace cfront

#endif


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

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