54 lines
2.1 KiB
Plaintext
54 lines
2.1 KiB
Plaintext
-- Copyright (c) 2003-2007 ETH Zurich, Switzerland
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-- 2016 The University of Sheffield, UK
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--
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-- All rights reserved.
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--
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-- Redistribution and use in source and binary forms, with or without
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-- modification, are permitted provided that the following conditions are met:
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--
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-- * Redistributions of source code must retain the above copyright notice, this
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-- list of conditions and the following disclaimer.
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--
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-- * Redistributions in binary form must reproduce the above copyright notice,
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-- this list of conditions and the following disclaimer in the documentation
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-- and/or other materials provided with the distribution.
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--
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-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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-- IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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-- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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-- FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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-- DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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-- SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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-- CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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-- OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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-- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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--
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package companyPackage
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-- this is a comment
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-- =====================
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context Employee
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inv not_exploited: salary >= 2000
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context Manager
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inv slavery: employs->exists( e:Employee | e.salary < 2000)
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context Employee
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inv atLeastOneEmployee: self.allInstances()->notEmpty()
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-- context Manager
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-- def: closureWorksFor(S:Set(Manager)) : Set(Manager) =
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-- worksFor->union((worksFor - S)->collect(m |
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-- m.closureWorksFor(S->union(worksFor))))
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-- context Manager
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-- inv: not self.closureWorksFor(Set{})->includes(self)
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-- worksFor->union((worksFor - S)->closureWorksFor(S->union(worksFor)))
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endpackage
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