| paul@6 | 1 | #!/usr/bin/env python |
| paul@6 | 2 | |
| paul@6 | 3 | """ |
| paul@6 | 4 | Operator support. |
| paul@6 | 5 | |
| paul@873 | 6 | Copyright (C) 2010, 2013, 2015, 2017, 2019 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@873 | 25 | is_int, \ |
| paul@873 | 26 | float_add, float_div, float_mul, float_pow, float_sub |
| paul@6 | 27 | |
| paul@6 | 28 | # These functions defer method lookup by wrapping the attribute access in |
| paul@6 | 29 | # lambda functions. Thus, the appropriate methods are defined locally, but no |
| paul@6 | 30 | # attempt to obtain them is made until the generic function is called. |
| paul@6 | 31 | |
| paul@6 | 32 | # NOTE: The compiler should make it possible for the following functions to call |
| paul@6 | 33 | # NOTE: the generic operator implementations with no additional call overhead. |
| paul@6 | 34 | |
| paul@6 | 35 | # Augmented assignment functions. |
| paul@6 | 36 | |
| paul@6 | 37 | def iadd(a, b): |
| paul@762 | 38 | if is_int(a) and is_int(b): |
| paul@762 | 39 | return int_add(a, b) |
| paul@873 | 40 | elif a.__class__ is float and b.__class__ is float: |
| paul@873 | 41 | return float_add(a, b) |
| paul@6 | 42 | return augassign(a, b, lambda a: a.__iadd__, lambda a: a.__add__, lambda b: b.__radd__) |
| paul@6 | 43 | |
| paul@6 | 44 | def iand_(a, b): |
| paul@762 | 45 | if is_int(a) and is_int(b): |
| paul@762 | 46 | return int_and(a, b) |
| paul@6 | 47 | return augassign(a, b, lambda a: a.__iand__, lambda a: a.__and__, lambda b: b.__rand__) |
| paul@6 | 48 | |
| paul@6 | 49 | def idiv(a, b): |
| paul@762 | 50 | if is_int(a) and is_int(b): |
| paul@762 | 51 | return int_div(a, b) |
| paul@873 | 52 | elif a.__class__ is float and b.__class__ is float: |
| paul@873 | 53 | return float_div(a, b) |
| paul@6 | 54 | return augassign(a, b, lambda a: a.__idiv__, lambda a: a.__div__, lambda b: b.__rdiv__) |
| paul@6 | 55 | |
| paul@6 | 56 | def ifloordiv(a, b): |
| paul@6 | 57 | return augassign(a, b, lambda a: a.__ifloordiv__, lambda a: a.__floordiv__, lambda b: b.__rfloordiv__) |
| paul@6 | 58 | |
| paul@6 | 59 | def ilshift(a, b): |
| paul@6 | 60 | return augassign(a, b, lambda a: a.__ilshift__, lambda a: a.__lshift__, lambda b: b.__rlshift__) |
| paul@6 | 61 | |
| paul@6 | 62 | def imod(a, b): |
| paul@762 | 63 | if is_int(a) and is_int(b): |
| paul@762 | 64 | return int_mod(a, b) |
| paul@6 | 65 | return augassign(a, b, lambda a: a.__imod__, lambda a: a.__mod__, lambda b: b.__rmod__) |
| paul@6 | 66 | |
| paul@6 | 67 | def imul(a, b): |
| paul@762 | 68 | if is_int(a) and is_int(b): |
| paul@762 | 69 | return int_mul(a, b) |
| paul@873 | 70 | elif a.__class__ is float and b.__class__ is float: |
| paul@873 | 71 | return float_mul(a, b) |
| paul@6 | 72 | return augassign(a, b, lambda a: a.__imul__, lambda a: a.__mul__, lambda b: b.__rmul__) |
| paul@6 | 73 | |
| paul@6 | 74 | def ior_(a, b): |
| paul@762 | 75 | if is_int(a) and is_int(b): |
| paul@762 | 76 | return int_or(a, b) |
| paul@6 | 77 | return augassign(a, b, lambda a: a.__ior__, lambda a: a.__or__, lambda b: b.__ror__) |
| paul@6 | 78 | |
| paul@6 | 79 | def ipow(a, b): |
| paul@762 | 80 | if is_int(a) and is_int(b): |
| paul@762 | 81 | return int_pow(a, b) |
| paul@873 | 82 | elif a.__class__ is float and b.__class__ is float: |
| paul@873 | 83 | return float_pow(a, b) |
| paul@6 | 84 | return augassign(a, b, lambda a: a.__ipow__, lambda a: a.__pow__, lambda b: b.__rpow__) |
| paul@6 | 85 | |
| paul@6 | 86 | def irshift(a, b): |
| paul@6 | 87 | return augassign(a, b, lambda a: a.__irshift__, lambda a: a.__rshift__, lambda b: b.__rrshift__) |
| paul@6 | 88 | |
| paul@6 | 89 | def isub(a, b): |
| paul@762 | 90 | if is_int(a) and is_int(b): |
| paul@762 | 91 | return int_sub(a, b) |
| paul@873 | 92 | elif a.__class__ is float and b.__class__ is float: |
| paul@873 | 93 | return float_sub(a, b) |
| paul@6 | 94 | return augassign(a, b, lambda a: a.__isub__, lambda a: a.__sub__, lambda b: b.__rsub__) |
| paul@6 | 95 | |
| paul@6 | 96 | def ixor(a, b): |
| paul@762 | 97 | if is_int(a) and is_int(b): |
| paul@762 | 98 | return int_xor(a, b) |
| paul@6 | 99 | return augassign(a, b, lambda a: a.__ixor__, lambda a: a.__xor__, lambda b: b.__rxor__) |
| paul@6 | 100 | |
| paul@6 | 101 | # vim: tabstop=4 expandtab shiftwidth=4 |
