Mercurial > games > semicongine

comparison fuhtark_test/Vulkan-Headers-1.4.334/registry/spec_tools/util.py @ 1501:f40d9d814c08 default tip main

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did: correct vulkan-api generator
author sam <sam@basx.dev>
date Wed, 26 Nov 2025 23:34:29 +0700
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1500:91c8c3b7cbf0 1501:f40d9d814c08
1 """Utility functions not closely tied to other spec_tools types."""
2 # Copyright (c) 2018-2019 Collabora, Ltd.
3 # Copyright 2013-2025 The Khronos Group Inc.
4 #
5 # SPDX-License-Identifier: Apache-2.0
6
7
8 def getElemName(elem, default=None):
9 """Get the name associated with an element, either a name child or name attribute."""
10 name_elem = elem.find('name')
11 if name_elem is not None:
12 return name_elem.text
13 # Fallback if there is no child.
14 return elem.get('name', default)
15
16
17 def getElemType(elem, default=None):
18 """Get the type associated with an element, either a type child or type attribute."""
19 type_elem = elem.find('type')
20 if type_elem is not None:
21 return type_elem.text
22 # Fallback if there is no child.
23 return elem.get('type', default)
24
25
26 def findFirstWithPredicate(collection, pred):
27 """Return the first element that satisfies the predicate, or None if none exist.
28
29 NOTE: Some places where this is used might be better served by changing to a dictionary.
30 """
31 for elt in collection:
32 if pred(elt):
33 return elt
34 return None
35
36
37 def findNamedElem(elems, name):
38 """Traverse a collection of elements with 'name' nodes or attributes, looking for and returning one with the right name.
39
40 NOTE: Many places where this is used might be better served by changing to a dictionary.
41 """
42 return findFirstWithPredicate(elems, lambda elem: getElemName(elem) == name)
43
44
45 def findTypedElem(elems, typename):
46 """Traverse a collection of elements with 'type' nodes or attributes, looking for and returning one with the right typename.
47
48 NOTE: Many places where this is used might be better served by changing to a dictionary.
49 """
50 return findFirstWithPredicate(elems, lambda elem: getElemType(elem) == typename)
51
52
53 def findNamedObject(collection, name):
54 """Traverse a collection of elements with 'name' attributes, looking for and returning one with the right name.
55
56 NOTE: Many places where this is used might be better served by changing to a dictionary.
57 """
58 return findFirstWithPredicate(collection, lambda elt: elt.name == name)