Current File : //lib/python3/dist-packages/mypy/operators.py
"""Information about Python operators"""
from typing_extensions import Final
# Map from binary operator id to related method name (in Python 3).
op_methods: Final = {
'+': '__add__',
'-': '__sub__',
'*': '__mul__',
'/': '__truediv__',
'%': '__mod__',
'divmod': '__divmod__',
'//': '__floordiv__',
'**': '__pow__',
'@': '__matmul__',
'&': '__and__',
'|': '__or__',
'^': '__xor__',
'<<': '__lshift__',
'>>': '__rshift__',
'==': '__eq__',
'!=': '__ne__',
'<': '__lt__',
'>=': '__ge__',
'>': '__gt__',
'<=': '__le__',
'in': '__contains__',
}
op_methods_to_symbols: Final = {v: k for (k, v) in op_methods.items()}
op_methods_to_symbols['__div__'] = '/'
comparison_fallback_method: Final = "__cmp__"
ops_falling_back_to_cmp: Final = {"__ne__", "__eq__", "__lt__", "__le__", "__gt__", "__ge__"}
ops_with_inplace_method: Final = {
"+",
"-",
"*",
"/",
"%",
"//",
"**",
"@",
"&",
"|",
"^",
"<<",
">>",
}
inplace_operator_methods: Final = set("__i" + op_methods[op][2:] for op in ops_with_inplace_method)
reverse_op_methods: Final = {
'__add__': '__radd__',
'__sub__': '__rsub__',
'__mul__': '__rmul__',
'__truediv__': '__rtruediv__',
'__mod__': '__rmod__',
'__divmod__': '__rdivmod__',
'__floordiv__': '__rfloordiv__',
'__pow__': '__rpow__',
'__matmul__': '__rmatmul__',
'__and__': '__rand__',
'__or__': '__ror__',
'__xor__': '__rxor__',
'__lshift__': '__rlshift__',
'__rshift__': '__rrshift__',
'__eq__': '__eq__',
'__ne__': '__ne__',
'__lt__': '__gt__',
'__ge__': '__le__',
'__gt__': '__lt__',
'__le__': '__ge__',
}
reverse_op_method_names: Final = set(reverse_op_methods.values())
# Suppose we have some class A. When we do A() + A(), Python will only check
# the output of A().__add__(A()) and skip calling the __radd__ method entirely.
# This shortcut is used only for the following methods:
op_methods_that_shortcut: Final = {
'__add__',
'__sub__',
'__mul__',
'__div__',
'__truediv__',
'__mod__',
'__divmod__',
'__floordiv__',
'__pow__',
'__matmul__',
'__and__',
'__or__',
'__xor__',
'__lshift__',
'__rshift__',
}
normal_from_reverse_op: Final = dict((m, n) for n, m in reverse_op_methods.items())
reverse_op_method_set: Final = set(reverse_op_methods.values())
unary_op_methods: Final = {
'-': '__neg__',
'+': '__pos__',
'~': '__invert__',
}
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