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/* Copyright (c) 1997-2024
Ewgenij Gawrilow, Michael Joswig, and the polymake team
Technische Universität Berlin, Germany
https://polymake.org
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: http://www.gnu.org/licenses/gpl.txt.
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.
--------------------------------------------------------------------------------
*/
#pragma once
#include "polymake/AnyString.h"
namespace pm { namespace perl {
enum class ValueFlags {
is_mutable = 0, read_only = 1, alloc_magic = 2, expect_lval = 4,
allow_undef = 8, allow_non_persistent = 0x10, ignore_magic = 0x20,
is_trusted = 0, not_trusted = 0x40, allow_conversion = 0x80,
allow_store_ref = 0x100, allow_store_temp_ref = 0x200,
allow_store_any_ref = allow_store_ref | allow_store_temp_ref
};
enum class ClassFlags {
none = 0,
is_scalar = 0, is_container, is_composite, is_opaque, kind_mask=0xf,
is_assoc_container = 0x100, is_sparse_container = 0x200, is_set = 0x400,
is_serializable = 0x800, is_sparse_serialized = 0x1000, is_declared = 0x2000,
is_ordered = 0x4000
};
enum class Returns {
normal,
lvalue,
list,
empty // should be void but it's a reserved keyword
};
// function argument reference classification
enum {
arg_is_const_ref,
arg_is_lval_ref,
arg_is_univ_ref,
arg_is_const_or_rval_ref
};
constexpr ValueFlags operator| (ValueFlags a, ValueFlags b)
{
return static_cast<ValueFlags>(int(a) | int(b));
}
constexpr ValueFlags operator& (ValueFlags a, ValueFlags b)
{
return static_cast<ValueFlags>(int(a) & int(b));
}
constexpr bool operator* (ValueFlags a, ValueFlags b)
{
return (int(a) & int(b)) != 0;
}
constexpr ClassFlags operator| (ClassFlags a, ClassFlags b)
{
return static_cast<ClassFlags>(int(a) | int(b));
}
constexpr ClassFlags operator& (ClassFlags a, ClassFlags b)
{
return static_cast<ClassFlags>(int(a) & int(b));
}
constexpr bool operator* (ClassFlags a, ClassFlags b)
{
return (int(a) & int(b)) != 0;
}
inline
ValueFlags& operator|= (ValueFlags& a, ValueFlags b)
{
a = a | b;
return a;
}
inline
ClassFlags& operator|= (ClassFlags& a, ClassFlags b)
{
a = a | b;
return a;
}
template <typename L>
void set_bit_flags(L& l, unsigned int r)
{
l = static_cast<L>(static_cast<unsigned int>(l) | r);
}
template <typename L, typename R>
std::enable_if_t<std::is_enum<R>::value>
set_bit_flags(L& l, R r)
{
set_bit_flags(l, static_cast<unsigned int>(r));
}
template <typename L>
void clear_bit_flags(L& l, unsigned int r)
{
l = static_cast<L>(static_cast<unsigned int>(l) & ~r);
}
template <typename L, typename R>
std::enable_if_t<std::is_enum<R>::value>
clear_bit_flags(L& l, R r)
{
clear_bit_flags(l, static_cast<unsigned int>(r));
}
} }
// Local Variables:
// mode:C++
// c-basic-offset:3
// indent-tabs-mode:nil
// End:
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