Lichen

lib/operator/augmented.py

1022:582d834d392d
14 months ago Paul Boddie Merged changes from the value-replacement branch. value-replacement-for-wrapper
     1 #!/usr/bin/env python     2      3 """     4 Operator support.     5      6 Copyright (C) 2010, 2013, 2015, 2017, 2019 Paul Boddie <paul@boddie.org.uk>     7      8 This program is free software; you can redistribute it and/or modify it under     9 the terms of the GNU General Public License as published by the Free Software    10 Foundation; either version 3 of the License, or (at your option) any later    11 version.    12     13 This program is distributed in the hope that it will be useful, but WITHOUT    14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS    15 FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more    16 details.    17     18 You should have received a copy of the GNU General Public License along with    19 this program.  If not, see <http://www.gnu.org/licenses/>.    20 """    21     22 from operator.core import augassign    23 from native import int_add, int_div, int_mod, int_mul, int_pow, int_sub, \    24                    int_and, int_or, int_xor, \    25                    is_int, \    26                    float_add, float_div, float_mul, float_pow, float_sub    27     28 # These functions defer method lookup by wrapping the attribute access in    29 # lambda functions. Thus, the appropriate methods are defined locally, but no    30 # attempt to obtain them is made until the generic function is called.    31     32 # NOTE: The compiler should make it possible for the following functions to call    33 # NOTE: the generic operator implementations with no additional call overhead.    34     35 # Augmented assignment functions.    36     37 def iadd(a, b):    38     if is_int(a) and is_int(b):    39         return int_add(a, b)    40     elif a.__class__ is float and b.__class__ is float:    41         return float_add(a, b)    42     return augassign(a, b, lambda a: a.__iadd__, lambda a: a.__add__, lambda b: b.__radd__)    43     44 def iand_(a, b):    45     if is_int(a) and is_int(b):    46         return int_and(a, b)    47     return augassign(a, b, lambda a: a.__iand__, lambda a: a.__and__, lambda b: b.__rand__)    48     49 def idiv(a, b):    50     if is_int(a) and is_int(b):    51         return int_div(a, b)    52     elif a.__class__ is float and b.__class__ is float:    53         return float_div(a, b)    54     return augassign(a, b, lambda a: a.__idiv__, lambda a: a.__div__, lambda b: b.__rdiv__)    55     56 def ifloordiv(a, b):    57     return augassign(a, b, lambda a: a.__ifloordiv__, lambda a: a.__floordiv__, lambda b: b.__rfloordiv__)    58     59 def ilshift(a, b):    60     return augassign(a, b, lambda a: a.__ilshift__, lambda a: a.__lshift__, lambda b: b.__rlshift__)    61     62 def imod(a, b):    63     if is_int(a) and is_int(b):    64         return int_mod(a, b)    65     return augassign(a, b, lambda a: a.__imod__, lambda a: a.__mod__, lambda b: b.__rmod__)    66     67 def imul(a, b):    68     if is_int(a) and is_int(b):    69         return int_mul(a, b)    70     elif a.__class__ is float and b.__class__ is float:    71         return float_mul(a, b)    72     return augassign(a, b, lambda a: a.__imul__, lambda a: a.__mul__, lambda b: b.__rmul__)    73     74 def ior_(a, b):    75     if is_int(a) and is_int(b):    76         return int_or(a, b)    77     return augassign(a, b, lambda a: a.__ior__, lambda a: a.__or__, lambda b: b.__ror__)    78     79 def ipow(a, b):    80     if is_int(a) and is_int(b):    81         return int_pow(a, b)    82     elif a.__class__ is float and b.__class__ is float:    83         return float_pow(a, b)    84     return augassign(a, b, lambda a: a.__ipow__, lambda a: a.__pow__, lambda b: b.__rpow__)    85     86 def irshift(a, b):    87     return augassign(a, b, lambda a: a.__irshift__, lambda a: a.__rshift__, lambda b: b.__rrshift__)    88     89 def isub(a, b):    90     if is_int(a) and is_int(b):    91         return int_sub(a, b)    92     elif a.__class__ is float and b.__class__ is float:    93         return float_sub(a, b)    94     return augassign(a, b, lambda a: a.__isub__, lambda a: a.__sub__, lambda b: b.__rsub__)    95     96 def ixor(a, b):    97     if is_int(a) and is_int(b):    98         return int_xor(a, b)    99     return augassign(a, b, lambda a: a.__ixor__, lambda a: a.__xor__, lambda b: b.__rxor__)   100    101 # vim: tabstop=4 expandtab shiftwidth=4