# Copyright 2023 The PyMC Developers

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

__all__ = [

"bool_types",

"int_types",

"float_types",

"complex_types",

"continuous_types",

"discrete_types",

"typefilter",

"isgenerator",

]

bool_types = {"int8"}

int_types = {"int8", "int16", "int32", "int64", "uint8", "uint16", "uint32", "uint64"}

float_types = {"float32", "float64"}

complex_types = {"complex64", "complex128"}

continuous_types = float_types | complex_types

discrete_types = bool_types | int_types

string_types = str

def typefilter(vars, types):

# Returns variables of type `types` from `vars`

return [v for v in vars if v.dtype in types]

def isgenerator(obj):

return hasattr(obj, "__next__")