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-- PSL - Simple subset
-- Copyright (C) 2002-2016 Tristan Gingold
--
-- GHDL 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.
--
-- GHDL 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 GHDL; see the file COPYING. If not, write to the Free
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
with PSL.Nodes; use PSL.Nodes;
package PSL.Subsets is
-- Check that N (a property) follows the simple subset rules from
-- PSL v1.1 4.4.4 Simple subset.
-- Ie:
-- - The operand of a negation operator is a Boolean.
-- - The operand of a 'never' operator is a Boolean or a Sequence.
-- - The operand of an 'eventually!' operator is a Boolean or a Sequence.
-- - The left-hand side operand of a logical 'and' operator is a Boolean.
-- - The left-hand side operand of a logical 'or' operator is a Boolean.
-- - The left-hand side operand of a logical implication '->' operator
-- is a Boolean.
-- - Both operands of a logical iff '<->' operator are Boolean.
-- - The right-hand side operand of a non-overlapping 'until*' operator is
-- a Boolean.
-- - Both operands of an overlapping 'until*' operator are Boolean.
-- - Both operands of a 'before*' operator are Boolean.
--
-- All other operators not mentioned above are supported in the simple
-- subset without restriction.
procedure Check_Simple (N : Node);
end PSL.Subsets;
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