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/* $Id$
*
* Types: base types of VHDL.
*
* Copyright (C) 2007-2009 FAUmachine Team <info@faumachine.org>.
* This program is free software. You can redistribute it and/or modify it
* under the terms of the GNU General Public License, either version 2 of
* the License, or (at your option) any later version. See COPYING.
*/
#include "frontend/ast/Types.hpp"
#include <cassert>
namespace ast {
enum BaseType
operator &&(enum BaseType left, enum BaseType right)
{
if (left == right) {
return left;
}
switch(left) {
case BASE_TYPE_INTEGER:
switch (right) {
case BASE_TYPE_REAL:
return right;
default:
return BASE_TYPE_UNSET;
}
case BASE_TYPE_REAL:
switch (right) {
case BASE_TYPE_INTEGER:
return left;
default:
return BASE_TYPE_UNSET;
}
case BASE_TYPE_RANGE_INT:
switch (right) {
case BASE_TYPE_RANGE_REAL:
return right;
default:
return BASE_TYPE_UNSET;
}
case BASE_TYPE_RANGE_REAL:
switch (right) {
case BASE_TYPE_RANGE_INT:
return left;
default:
return BASE_TYPE_UNSET;
}
case BASE_TYPE_ENUM:
switch (right) {
case BASE_TYPE_ENUM:
return left;
default:
return BASE_TYPE_UNSET;
};
default:
break;
}
return BASE_TYPE_UNSET;
}
enum intermediate::OpType
toOpType(enum BaseType src)
{
switch (src) {
case BASE_TYPE_ARRAY:
case BASE_TYPE_RECORD:
return intermediate::OP_TYPE_POINTER;
case BASE_TYPE_REAL:
return intermediate::OP_TYPE_REAL;
case BASE_TYPE_ENUM:
case BASE_TYPE_INTEGER:
return intermediate::OP_TYPE_INTEGER;
case BASE_TYPE_UNSET:
case BASE_TYPE_RANGE_REAL:
case BASE_TYPE_RANGE_INT:
/* must not happend */
assert(false);
break;
}
/* not reached */
return intermediate::OP_TYPE_POINTER;
}
}; /* namespace ast */
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