paul@6 | 1 | #!/usr/bin/env python |
paul@6 | 2 | |
paul@6 | 3 | """ |
paul@6 | 4 | Operator support. |
paul@6 | 5 | |
paul@762 | 6 | Copyright (C) 2010, 2013, 2015, 2017 Paul Boddie <paul@boddie.org.uk> |
paul@6 | 7 | |
paul@6 | 8 | This program is free software; you can redistribute it and/or modify it under |
paul@6 | 9 | the terms of the GNU General Public License as published by the Free Software |
paul@6 | 10 | Foundation; either version 3 of the License, or (at your option) any later |
paul@6 | 11 | version. |
paul@6 | 12 | |
paul@6 | 13 | This program is distributed in the hope that it will be useful, but WITHOUT |
paul@6 | 14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
paul@6 | 15 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
paul@6 | 16 | details. |
paul@6 | 17 | |
paul@6 | 18 | You should have received a copy of the GNU General Public License along with |
paul@6 | 19 | this program. If not, see <http://www.gnu.org/licenses/>. |
paul@6 | 20 | """ |
paul@6 | 21 | |
paul@6 | 22 | from operator.core import augassign |
paul@762 | 23 | from native import int_add, int_div, int_mod, int_mul, int_pow, int_sub, \ |
paul@762 | 24 | int_and, int_or, int_xor, \ |
paul@762 | 25 | is_int |
paul@6 | 26 | |
paul@6 | 27 | # These functions defer method lookup by wrapping the attribute access in |
paul@6 | 28 | # lambda functions. Thus, the appropriate methods are defined locally, but no |
paul@6 | 29 | # attempt to obtain them is made until the generic function is called. |
paul@6 | 30 | |
paul@6 | 31 | # NOTE: The compiler should make it possible for the following functions to call |
paul@6 | 32 | # NOTE: the generic operator implementations with no additional call overhead. |
paul@6 | 33 | |
paul@6 | 34 | # Augmented assignment functions. |
paul@6 | 35 | |
paul@6 | 36 | def iadd(a, b): |
paul@762 | 37 | if is_int(a) and is_int(b): |
paul@762 | 38 | return int_add(a, b) |
paul@6 | 39 | return augassign(a, b, lambda a: a.__iadd__, lambda a: a.__add__, lambda b: b.__radd__) |
paul@6 | 40 | |
paul@6 | 41 | def iand_(a, b): |
paul@762 | 42 | if is_int(a) and is_int(b): |
paul@762 | 43 | return int_and(a, b) |
paul@6 | 44 | return augassign(a, b, lambda a: a.__iand__, lambda a: a.__and__, lambda b: b.__rand__) |
paul@6 | 45 | |
paul@6 | 46 | def idiv(a, b): |
paul@762 | 47 | if is_int(a) and is_int(b): |
paul@762 | 48 | return int_div(a, b) |
paul@6 | 49 | return augassign(a, b, lambda a: a.__idiv__, lambda a: a.__div__, lambda b: b.__rdiv__) |
paul@6 | 50 | |
paul@6 | 51 | def ifloordiv(a, b): |
paul@6 | 52 | return augassign(a, b, lambda a: a.__ifloordiv__, lambda a: a.__floordiv__, lambda b: b.__rfloordiv__) |
paul@6 | 53 | |
paul@6 | 54 | def ilshift(a, b): |
paul@6 | 55 | return augassign(a, b, lambda a: a.__ilshift__, lambda a: a.__lshift__, lambda b: b.__rlshift__) |
paul@6 | 56 | |
paul@6 | 57 | def imod(a, b): |
paul@762 | 58 | if is_int(a) and is_int(b): |
paul@762 | 59 | return int_mod(a, b) |
paul@6 | 60 | return augassign(a, b, lambda a: a.__imod__, lambda a: a.__mod__, lambda b: b.__rmod__) |
paul@6 | 61 | |
paul@6 | 62 | def imul(a, b): |
paul@762 | 63 | if is_int(a) and is_int(b): |
paul@762 | 64 | return int_mul(a, b) |
paul@6 | 65 | return augassign(a, b, lambda a: a.__imul__, lambda a: a.__mul__, lambda b: b.__rmul__) |
paul@6 | 66 | |
paul@6 | 67 | def ior_(a, b): |
paul@762 | 68 | if is_int(a) and is_int(b): |
paul@762 | 69 | return int_or(a, b) |
paul@6 | 70 | return augassign(a, b, lambda a: a.__ior__, lambda a: a.__or__, lambda b: b.__ror__) |
paul@6 | 71 | |
paul@6 | 72 | def ipow(a, b): |
paul@762 | 73 | if is_int(a) and is_int(b): |
paul@762 | 74 | return int_pow(a, b) |
paul@6 | 75 | return augassign(a, b, lambda a: a.__ipow__, lambda a: a.__pow__, lambda b: b.__rpow__) |
paul@6 | 76 | |
paul@6 | 77 | def irshift(a, b): |
paul@6 | 78 | return augassign(a, b, lambda a: a.__irshift__, lambda a: a.__rshift__, lambda b: b.__rrshift__) |
paul@6 | 79 | |
paul@6 | 80 | def isub(a, b): |
paul@762 | 81 | if is_int(a) and is_int(b): |
paul@762 | 82 | return int_sub(a, b) |
paul@6 | 83 | return augassign(a, b, lambda a: a.__isub__, lambda a: a.__sub__, lambda b: b.__rsub__) |
paul@6 | 84 | |
paul@6 | 85 | def ixor(a, b): |
paul@762 | 86 | if is_int(a) and is_int(b): |
paul@762 | 87 | return int_xor(a, b) |
paul@6 | 88 | return augassign(a, b, lambda a: a.__ixor__, lambda a: a.__xor__, lambda b: b.__rxor__) |
paul@6 | 89 | |
paul@6 | 90 | # vim: tabstop=4 expandtab shiftwidth=4 |