65 lines
2.3 KiB
Hy
65 lines
2.3 KiB
Hy
;; Copyright (c) 2014 Paul Tagliamonte <paultag@debian.org>
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;; Copyright (c) 2014 James King <james@agentultra.com>
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;; Permission is hereby granted, free of charge, to any person obtaining a
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;; copy of this software and associated documentation files (the "Software"),
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;; to deal in the Software without restriction, including without limitation
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;; the rights to use, copy, modify, merge, publish, distribute, sublicense,
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;; and/or sell copies of the Software, and to permit persons to whom the
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;; Software is furnished to do so, subject to the following conditions:
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;; The above copyright notice and this permission notice shall be included in
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;; all copies or substantial portions of the Software.
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;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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;; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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;; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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;; THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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;; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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;; FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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;; DEALINGS IN THE SOFTWARE.
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;;;; Hy shadow functions
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(import operator)
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(defn + [&rest args]
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"Shadow + operator for when we need to import / map it against something"
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(let [[count (len args)]]
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(if (zero? count)
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(raise (TypeError "Need at least 1 argument to add/concatenate"))
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(if (= count 1)
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(get args 0)
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(reduce operator.add args)))))
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(defn - [&rest args]
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"Shadow - operator for when we need to import / map it against something"
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(let [[count (len args)]]
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(if (= count 0)
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(raise (TypeError "Need at least 1 argument to subtract"))
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(if (= count 1)
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(- (get args 0))
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(reduce operator.sub args)))))
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(defn * [&rest args]
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"Shadow * operator for when we need to import / map it against something"
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(if (= (len args) 0)
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1 ; identity
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(reduce operator.mul args)))
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(defn / [&rest args]
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"Shadow / operator for when we need to import / map it against something"
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(let [[count (len args)]]
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(if (= count 0)
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(raise (TypeError "Need at least 1 argument to divide"))
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(if (= count 1)
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(operator.truediv 1 (get args 0))
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(reduce operator.truediv args)))))
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(setv *exports* ['+ '- '* '/])
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