def fn(__src=None, **constants):
"""Create a generic cl.oquence function based on the provided source and
constant bindings.
- If provided a Python function (e.g. if used as a decorator):
- The abstract syntax tree will be read via :func:`cypy.astx.infer_ast`.
- The function's globals and defaults will be used.
- If ``__src`` is a :class:`GenericFn` already, a new generic function with
additional constants will be created. It will have the same abstract
syntax tree, defaults and globals.
Constants can be passed in as keyword arguments.
.. WARNING:: Functions defined on the Python/iPython command line do not
retain their source, so this won't work. A bug has been filed:
http://github.com/ipython/ipython/issues/issue/120
"""
# __src in case a variable named 'src' is defined.
if __src is None:
# support using as a decorator with constants by deferring
# initialization until the source is also specified, presumably
# directly below
return lambda __src: fn(__src, **constants)
elif isinstance(__src, GenericFn):
return GenericFn(__src.ast, __src.defaults, __src.globals,
cypy.merge_dicts(__src.constants, constants),
__src.size_calculator)
else:
ast = astx.infer_ast(__src)
ast = astx.extract_the(ast, _ast.FunctionDef)
globals = __src.func_globals
defaults = __src.func_defaults
if defaults is None:
# In Python, func_defaults is None if there are no defaults but
# I don't want to have to special case that everywhere
defaults = ()
return GenericFn(ast, defaults, globals, constants)
def fn(__src=None, **constants):
"""Create a generic cl.oquence function based on the provided source and
constant bindings.
- If provided a Python function (e.g. if used as a decorator):
- The abstract syntax tree will be read via :func:`cypy.astx.infer_ast`.
- The function's globals and defaults will be used.
- If ``__src`` is a :class:`GenericFn` already, a new generic function with
additional constants will be created. It will have the same abstract
syntax tree, defaults and globals.
Constants can be passed in as keyword arguments.
.. WARNING:: Functions defined on the Python/iPython command line do not
retain their source, so this won't work. A bug has been filed:
http://github.com/ipython/ipython/issues/issue/120
"""
# __src in case a variable named 'src' is defined.
if __src is None:
# support using as a decorator with constants by deferring
# initialization until the source is also specified, presumably
# directly below
return lambda __src: fn(__src, **constants)
elif isinstance(__src, GenericFn):
return GenericFn(__src.ast, __src.defaults, __src.globals,
cypy.merge_dicts(__src.constants, constants),
__src.size_calculator)
else:
ast = astx.infer_ast(__src)
ast = astx.extract_the(ast, _ast.FunctionDef)
globals = __src.func_globals
defaults = __src.func_defaults
if defaults is None:
# In Python, func_defaults is None if there are no defaults but
# I don't want to have to special case that everywhere
defaults = ()
return GenericFn(ast, defaults, globals, constants)
comparison_operators = {
_ast.Eq: '==',
_ast.NotEq: '!=',
_ast.Lt: '<',
_ast.LtE: '<=',
_ast.Gt: '>',
_ast.GtE: '>=',
_ast.Is: 'is',
_ast.IsNot: 'is not',
_ast.In: 'in',
_ast.NotIn: 'not in',
}
all_operators = cypy.merge_dicts(unary_operators,
binary_operators,
boolean_operators,
comparison_operators)
C_unary_operators = dict(unary_operators)
C_unary_operators[_ast.Not] = "!"
C_binary_operators = dict(binary_operators)
del C_binary_operators[_ast.Pow]
del C_binary_operators[_ast.FloorDiv]
C_boolean_operators = {
_ast.And: "&&",
_ast.Or: "||"
}
C_comparison_operators = {
}
comparison_operators = {
_ast.Eq: '==',
_ast.NotEq: '!=',
_ast.Lt: '<',
_ast.LtE: '<=',
_ast.Gt: '>',
_ast.GtE: '>=',
_ast.Is: 'is',
_ast.IsNot: 'is not',
_ast.In: 'in',
_ast.NotIn: 'not in',
}
all_operators = cypy.merge_dicts(unary_operators, binary_operators,
boolean_operators, comparison_operators)
C_unary_operators = dict(unary_operators)
C_unary_operators[_ast.Not] = "!"
C_binary_operators = dict(binary_operators)
del C_binary_operators[_ast.Pow]
del C_binary_operators[_ast.FloorDiv]
C_boolean_operators = {_ast.And: "&&", _ast.Or: "||"}
C_comparison_operators = {
_ast.Eq: "==",
_ast.NotEq: "!=",
_ast.Lt: "<",
_ast.LtE: "<=",
