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-- PSL - Simple subset
-- Copyright (C) 2002-2016 Tristan Gingold
--
-- 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 of the License, or
-- (at your option) any later version.
--
-- 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.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <gnu.org/licenses>.
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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