1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
"""Utility functions not closely tied to other spec_tools types."""
# Copyright (c) 2018-2019 Collabora, Ltd.
# Copyright (c) 2013-2019 The Khronos Group Inc.
#
# 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.
def getElemName(elem, default=None):
"""Get the name associated with an element, either a name child or name attribute."""
name_elem = elem.find('name')
if name_elem is not None:
return name_elem.text
# Fallback if there is no child.
return elem.get('name', default)
def getElemType(elem, default=None):
"""Get the type associated with an element, either a type child or type attribute."""
type_elem = elem.find('type')
if type_elem is not None:
return type_elem.text
# Fallback if there is no child.
return elem.get('type', default)
def findFirstWithPredicate(collection, pred):
"""Return the first element that satisfies the predicate, or None if none exist.
NOTE: Some places where this is used might be better served by changing to a dictionary.
"""
for elt in collection:
if pred(elt):
return elt
return None
def findNamedElem(elems, name):
"""Traverse a collection of elements with 'name' nodes or attributes, looking for and returning one with the right name.
NOTE: Many places where this is used might be better served by changing to a dictionary.
"""
return findFirstWithPredicate(elems, lambda elem: getElemName(elem) == name)
def findTypedElem(elems, typename):
"""Traverse a collection of elements with 'type' nodes or attributes, looking for and returning one with the right typename.
NOTE: Many places where this is used might be better served by changing to a dictionary.
"""
return findFirstWithPredicate(elems, lambda elem: getElemType(elem) == typename)
def findNamedObject(collection, name):
"""Traverse a collection of elements with 'name' attributes, looking for and returning one with the right name.
NOTE: Many places where this is used might be better served by changing to a dictionary.
"""
return findFirstWithPredicate(collection, lambda elt: elt.name == name)
|
