3 # Copyright (c) 2013-2015 The Khronos Group Inc.
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
17 import io,os,re,string,sys
18 import xml.etree.ElementTree as etree
20 # matchAPIProfile - returns whether an API and profile
21 # being generated matches an element's profile
22 # api - string naming the API to match
23 # profile - string naming the profile to match
24 # elem - Element which (may) have 'api' and 'profile'
25 # attributes to match to.
26 # If a tag is not present in the Element, the corresponding API
27 # or profile always matches.
28 # Otherwise, the tag must exactly match the API or profile.
29 # Thus, if 'profile' = core:
30 # <remove> with no attribute will match
31 # <remove profile='core'> will match
32 # <remove profile='compatibility'> will not match
33 # Possible match conditions:
37 # None None Always matches
38 # 'string' None Always matches
39 # None 'string' Does not match. Can't generate multiple APIs
40 # or profiles, so if an API/profile constraint
41 # is present, it must be asked for explicitly.
42 # 'string' 'string' Strings must match
44 # ** In the future, we will allow regexes for the attributes,
45 # not just strings, so that api="^(gl|gles2)" will match. Even
46 # this isn't really quite enough, we might prefer something
47 # like "gl(core)|gles1(common-lite)".
48 def matchAPIProfile(api, profile, elem):
49 """Match a requested API & profile name to a api & profile attributes of an Element"""
51 # Match 'api', if present
52 if ('api' in elem.attrib):
54 raise UserWarning("No API requested, but 'api' attribute is present with value '" +
55 elem.get('api') + "'")
56 elif (api != elem.get('api')):
57 # Requested API doesn't match attribute
59 if ('profile' in elem.attrib):
61 raise UserWarning("No profile requested, but 'profile' attribute is present with value '" +
62 elem.get('profile') + "'")
63 elif (profile != elem.get('profile')):
64 # Requested profile doesn't match attribute
68 # BaseInfo - base class for information about a registry feature
69 # (type/group/enum/command/API/extension).
70 # required - should this feature be defined during header generation
71 # (has it been removed by a profile or version)?
72 # declared - has this feature been defined already?
73 # elem - etree Element for this feature
74 # resetState() - reset required/declared to initial values. Used
75 # prior to generating a new API interface.
77 """Represents the state of a registry feature, used during API generation"""
78 def __init__(self, elem):
86 # TypeInfo - registry information about a type. No additional state
87 # beyond BaseInfo is required.
88 class TypeInfo(BaseInfo):
89 """Represents the state of a registry type"""
90 def __init__(self, elem):
91 BaseInfo.__init__(self, elem)
93 # GroupInfo - registry information about a group of related enums
94 # in an <enums> block, generally corresponding to a C "enum" type.
95 class GroupInfo(BaseInfo):
96 """Represents the state of a registry <enums> group"""
97 def __init__(self, elem):
98 BaseInfo.__init__(self, elem)
100 # EnumInfo - registry information about an enum
101 # type - numeric type of the value of the <enum> tag
102 # ( '' for GLint, 'u' for GLuint, 'ull' for GLuint64 )
103 class EnumInfo(BaseInfo):
104 """Represents the state of a registry enum"""
105 def __init__(self, elem):
106 BaseInfo.__init__(self, elem)
107 self.type = elem.get('type')
108 if (self.type == None):
111 # CmdInfo - registry information about a command
112 class CmdInfo(BaseInfo):
113 """Represents the state of a registry command"""
114 def __init__(self, elem):
115 BaseInfo.__init__(self, elem)
117 # FeatureInfo - registry information about an API <feature>
119 # name - feature name string (e.g. 'vk_ext_khr_surface')
120 # version - feature version number (e.g. 1.2). <extension>
121 # features are unversioned and assigned version number 0.
122 # ** This is confusingly taken from the 'number' attribute of <feature>.
124 # number - extension number, used for ordering and for
125 # assigning enumerant offsets. <feature> features do
126 # not have extension numbers and are assigned number 0.
127 # category - category, e.g. VERSION or khr/vendor tag
128 # emit - has this feature been defined already?
129 class FeatureInfo(BaseInfo):
130 """Represents the state of an API feature (version/extension)"""
131 def __init__(self, elem):
132 BaseInfo.__init__(self, elem)
133 self.name = elem.get('name')
134 # Determine element category (vendor). Only works
135 # for <extension> elements.
136 if (elem.tag == 'feature'):
137 self.category = 'VERSION'
138 self.version = elem.get('number')
141 self.category = self.name.split('_', 2)[1]
143 self.number = elem.get('number')
146 from generator import write, GeneratorOptions, OutputGenerator
148 # Registry - object representing an API registry, loaded from an XML file
150 # tree - ElementTree containing the root <registry>
151 # typedict - dictionary of TypeInfo objects keyed by type name
152 # groupdict - dictionary of GroupInfo objects keyed by group name
153 # enumdict - dictionary of EnumInfo objects keyed by enum name
154 # cmddict - dictionary of CmdInfo objects keyed by command name
155 # apidict - dictionary of <api> Elements keyed by API name
156 # extensions - list of <extension> Elements
157 # extdict - dictionary of <extension> Elements keyed by extension name
158 # gen - OutputGenerator object used to write headers / messages
159 # genOpts - GeneratorOptions object used to control which
160 # fetures to write and how to format them
161 # emitFeatures - True to actually emit features for a version / extension,
162 # or False to just treat them as emitted
164 # loadElementTree(etree) - load registry from specified ElementTree
165 # loadFile(filename) - load registry from XML file
166 # setGenerator(gen) - OutputGenerator to use
167 # parseTree() - parse the registry once loaded & create dictionaries
168 # dumpReg(maxlen, filehandle) - diagnostic to dump the dictionaries
169 # to specified file handle (default stdout). Truncates type /
170 # enum / command elements to maxlen characters (default 80)
171 # generator(g) - specify the output generator object
172 # apiGen(apiname, genOpts) - generate API headers for the API type
173 # and profile specified in genOpts, but only for the versions and
174 # extensions specified there.
175 # apiReset() - call between calls to apiGen() to reset internal state
177 # addElementInfo(elem,info,infoName,dictionary) - add feature info to dict
178 # lookupElementInfo(fname,dictionary) - lookup feature info in dict
180 """Represents an API registry loaded from XML"""
190 # A default output generator, so commands prior to apiGen can report
191 # errors via the generator object.
192 self.gen = OutputGenerator()
194 self.emitFeatures = False
195 def loadElementTree(self, tree):
196 """Load ElementTree into a Registry object and parse it"""
199 def loadFile(self, file):
200 """Load an API registry XML file into a Registry object and parse it"""
201 self.tree = etree.parse(file)
203 def setGenerator(self, gen):
204 """Specify output generator object. None restores the default generator"""
206 self.gen.setRegistry(self.tree)
208 # addElementInfo - add information about an element to the
209 # corresponding dictionary
210 # elem - <type>/<enums>/<enum>/<command>/<feature>/<extension> Element
211 # info - corresponding {Type|Group|Enum|Cmd|Feature}Info object
212 # infoName - 'type' / 'group' / 'enum' / 'command' / 'feature' / 'extension'
213 # dictionary - self.{type|group|enum|cmd|api|ext}dict
214 # If the Element has an 'api' attribute, the dictionary key is the
215 # tuple (name,api). If not, the key is the name. 'name' is an
216 # attribute of the Element
217 def addElementInfo(self, elem, info, infoName, dictionary):
218 if ('api' in elem.attrib):
219 key = (elem.get('name'),elem.get('api'))
221 key = elem.get('name')
222 if key in dictionary:
223 self.gen.logMsg('warn', '*** Attempt to redefine',
224 infoName, 'with key:', key)
226 dictionary[key] = info
228 # lookupElementInfo - find a {Type|Enum|Cmd}Info object by name.
229 # If an object qualified by API name exists, use that.
230 # fname - name of type / enum / command
231 # dictionary - self.{type|enum|cmd}dict
232 def lookupElementInfo(self, fname, dictionary):
233 key = (fname, self.genOpts.apiname)
234 if (key in dictionary):
235 # self.gen.logMsg('diag', 'Found API-specific element for feature', fname)
236 return dictionary[key]
237 elif (fname in dictionary):
238 # self.gen.logMsg('diag', 'Found generic element for feature', fname)
239 return dictionary[fname]
243 """Parse the registry Element, once created"""
244 # This must be the Element for the root <registry>
245 self.reg = self.tree.getroot()
247 # Create dictionary of registry types from toplevel <types> tags
248 # and add 'name' attribute to each <type> tag (where missing)
249 # based on its <name> element.
251 # There's usually one <types> block; more are OK
252 # Required <type> attributes: 'name' or nested <name> tag contents
254 for type in self.reg.findall('types/type'):
255 # If the <type> doesn't already have a 'name' attribute, set
256 # it from contents of its <name> tag.
257 if (type.get('name') == None):
258 type.attrib['name'] = type.find('name').text
259 self.addElementInfo(type, TypeInfo(type), 'type', self.typedict)
261 # Create dictionary of registry enum groups from <enums> tags.
263 # Required <enums> attributes: 'name'. If no name is given, one is
264 # generated, but that group can't be identified and turned into an
265 # enum type definition - it's just a container for <enum> tags.
267 for group in self.reg.findall('enums'):
268 self.addElementInfo(group, GroupInfo(group), 'group', self.groupdict)
270 # Create dictionary of registry enums from <enum> tags
272 # <enums> tags usually define different namespaces for the values
273 # defined in those tags, but the actual names all share the
275 # Required <enum> attributes: 'name', 'value'
276 # For containing <enums> which have type="enum" or type="bitmask",
277 # tag all contained <enum>s are required. This is a stopgap until
278 # a better scheme for tagging core and extension enums is created.
280 for enums in self.reg.findall('enums'):
281 required = (enums.get('type') != None)
282 for enum in enums.findall('enum'):
283 enumInfo = EnumInfo(enum)
284 enumInfo.required = required
285 self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
287 # Create dictionary of registry commands from <command> tags
288 # and add 'name' attribute to each <command> tag (where missing)
289 # based on its <proto><name> element.
291 # There's usually only one <commands> block; more are OK.
292 # Required <command> attributes: 'name' or <proto><name> tag contents
294 for cmd in self.reg.findall('commands/command'):
295 # If the <command> doesn't already have a 'name' attribute, set
296 # it from contents of its <proto><name> tag.
297 if (cmd.get('name') == None):
298 cmd.attrib['name'] = cmd.find('proto/name').text
300 self.addElementInfo(cmd, ci, 'command', self.cmddict)
302 # Create dictionaries of API and extension interfaces
303 # from toplevel <api> and <extension> tags.
306 for feature in self.reg.findall('feature'):
307 featureInfo = FeatureInfo(feature)
308 self.addElementInfo(feature, featureInfo, 'feature', self.apidict)
309 self.extensions = self.reg.findall('extensions/extension')
311 for feature in self.extensions:
312 featureInfo = FeatureInfo(feature)
313 self.addElementInfo(feature, featureInfo, 'extension', self.extdict)
315 # Add additional enums defined only in <extension> tags
316 # to the corresponding core type.
317 # When seen here, a copy, processed to contain the numeric enum
318 # value, is added to the corresponding <enums> element, as well
319 # as adding to the enum dictionary. Also add a 'extnumber'
320 # attribute containing the extension number.
322 # For <enum> tags which are actually just constants, if there's
323 # no 'extends' tag but there is a 'value' or 'bitpos' tag, just
324 # add an EnumInfo record to the dictionary. That works because
325 # output generation of constants is purely dependency-based, and
326 # doesn't need to iterate through the XML tags.
328 # Something like this will need to be done for 'feature's up
329 # above, if we use the same mechanism for adding to the core
331 for enum in feature.findall('require/enum'):
333 groupName = enum.get('extends')
334 if (groupName != None):
335 # self.gen.logMsg('diag', '*** Found extension enum',
337 # Add extension number attribute to the <enum> element
338 enum.attrib['extnumber'] = featureInfo.number
339 # Look up the GroupInfo with matching groupName
340 if (groupName in self.groupdict.keys()):
341 # self.gen.logMsg('diag', '*** Matching group',
342 # groupName, 'found, adding element...')
343 gi = self.groupdict[groupName]
346 self.gen.logMsg('warn', '*** NO matching group',
347 groupName, 'for enum', enum.get('name'), 'found.')
349 elif (enum.get('value') or enum.get('bitpos')):
350 # self.gen.logMsg('diag', '*** Adding extension constant "enum"',
354 enumInfo = EnumInfo(enum)
355 self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
356 def dumpReg(self, maxlen = 40, filehandle = sys.stdout):
357 """Dump all the dictionaries constructed from the Registry object"""
358 write('***************************************', file=filehandle)
359 write(' ** Dumping Registry contents **', file=filehandle)
360 write('***************************************', file=filehandle)
361 write('// Types', file=filehandle)
362 for name in self.typedict:
363 tobj = self.typedict[name]
364 write(' Type', name, '->', etree.tostring(tobj.elem)[0:maxlen], file=filehandle)
365 write('// Groups', file=filehandle)
366 for name in self.groupdict:
367 gobj = self.groupdict[name]
368 write(' Group', name, '->', etree.tostring(gobj.elem)[0:maxlen], file=filehandle)
369 write('// Enums', file=filehandle)
370 for name in self.enumdict:
371 eobj = self.enumdict[name]
372 write(' Enum', name, '->', etree.tostring(eobj.elem)[0:maxlen], file=filehandle)
373 write('// Commands', file=filehandle)
374 for name in self.cmddict:
375 cobj = self.cmddict[name]
376 write(' Command', name, '->', etree.tostring(cobj.elem)[0:maxlen], file=filehandle)
377 write('// APIs', file=filehandle)
378 for key in self.apidict:
379 write(' API Version ', key, '->',
380 etree.tostring(self.apidict[key].elem)[0:maxlen], file=filehandle)
381 write('// Extensions', file=filehandle)
382 for key in self.extdict:
383 write(' Extension', key, '->',
384 etree.tostring(self.extdict[key].elem)[0:maxlen], file=filehandle)
385 # write('***************************************', file=filehandle)
386 # write(' ** Dumping XML ElementTree **', file=filehandle)
387 # write('***************************************', file=filehandle)
388 # write(etree.tostring(self.tree.getroot(),pretty_print=True), file=filehandle)
390 # typename - name of type
391 # required - boolean (to tag features as required or not)
392 def markTypeRequired(self, typename, required):
393 """Require (along with its dependencies) or remove (but not its dependencies) a type"""
394 self.gen.logMsg('diag', '*** tagging type:', typename, '-> required =', required)
395 # Get TypeInfo object for <type> tag corresponding to typename
396 type = self.lookupElementInfo(typename, self.typedict)
399 # Tag type dependencies in 'required' attributes as
400 # required. This DOES NOT un-tag dependencies in a <remove>
401 # tag. See comments in markRequired() below for the reason.
402 if ('requires' in type.elem.attrib):
403 depType = type.elem.get('requires')
404 self.gen.logMsg('diag', '*** Generating dependent type',
405 depType, 'for type', typename)
406 self.markTypeRequired(depType, required)
407 # Tag types used in defining this type (e.g. in nested
409 # Look for <type> in entire <command> tree,
410 # not just immediate children
411 for subtype in type.elem.findall('.//type'):
412 self.gen.logMsg('diag', '*** markRequired: type requires dependent <type>', subtype.text)
413 self.markTypeRequired(subtype.text, required)
414 # Tag enums used in defining this type, for example in
415 # <member><name>member</name>[<enum>MEMBER_SIZE</enum>]</member>
416 for subenum in type.elem.findall('.//enum'):
417 self.gen.logMsg('diag', '*** markRequired: type requires dependent <enum>', subenum.text)
418 self.markEnumRequired(subenum.text, required)
419 type.required = required
421 self.gen.logMsg('warn', '*** type:', typename , 'IS NOT DEFINED')
423 # enumname - name of enum
424 # required - boolean (to tag features as required or not)
425 def markEnumRequired(self, enumname, required):
426 self.gen.logMsg('diag', '*** tagging enum:', enumname, '-> required =', required)
427 enum = self.lookupElementInfo(enumname, self.enumdict)
429 enum.required = required
431 self.gen.logMsg('warn', '*** enum:', enumname , 'IS NOT DEFINED')
433 # features - Element for <require> or <remove> tag
434 # required - boolean (to tag features as required or not)
435 def markRequired(self, features, required):
436 """Require or remove features specified in the Element"""
437 self.gen.logMsg('diag', '*** markRequired (features = <too long to print>, required =', required, ')')
438 # Loop over types, enums, and commands in the tag
439 # @@ It would be possible to respect 'api' and 'profile' attributes
440 # in individual features, but that's not done yet.
441 for typeElem in features.findall('type'):
442 self.markTypeRequired(typeElem.get('name'), required)
443 for enumElem in features.findall('enum'):
444 self.markEnumRequired(enumElem.get('name'), required)
445 for cmdElem in features.findall('command'):
446 name = cmdElem.get('name')
447 self.gen.logMsg('diag', '*** tagging command:', name, '-> required =', required)
448 cmd = self.lookupElementInfo(name, self.cmddict)
450 cmd.required = required
451 # Tag all parameter types of this command as required.
452 # This DOES NOT remove types of commands in a <remove>
453 # tag, because many other commands may use the same type.
454 # We could be more clever and reference count types,
455 # instead of using a boolean.
457 # Look for <type> in entire <command> tree,
458 # not just immediate children
459 for type in cmd.elem.findall('.//type'):
460 self.gen.logMsg('diag', '*** markRequired: command implicitly requires dependent type', type.text)
461 self.markTypeRequired(type.text, required)
463 self.gen.logMsg('warn', '*** command:', name, 'IS NOT DEFINED')
465 # interface - Element for <version> or <extension>, containing
466 # <require> and <remove> tags
467 # api - string specifying API name being generated
468 # profile - string specifying API profile being generated
469 def requireAndRemoveFeatures(self, interface, api, profile):
470 """Process <recquire> and <remove> tags for a <version> or <extension>"""
471 # <require> marks things that are required by this version/profile
472 for feature in interface.findall('require'):
473 if (matchAPIProfile(api, profile, feature)):
474 self.markRequired(feature,True)
475 # <remove> marks things that are removed by this version/profile
476 for feature in interface.findall('remove'):
477 if (matchAPIProfile(api, profile, feature)):
478 self.markRequired(feature,False)
480 # generateFeature - generate a single type / enum group / enum / command,
481 # and all its dependencies as needed.
482 # fname - name of feature (<type>/<enum>/<command>)
483 # ftype - type of feature, 'type' | 'enum' | 'command'
484 # dictionary - of *Info objects - self.{type|enum|cmd}dict
485 def generateFeature(self, fname, ftype, dictionary):
486 f = self.lookupElementInfo(fname, dictionary)
488 # No such feature. This is an error, but reported earlier
489 self.gen.logMsg('diag', '*** No entry found for feature', fname,
493 # If feature isn't required, or has already been declared, return
495 self.gen.logMsg('diag', '*** Skipping', ftype, fname, '(not required)')
498 self.gen.logMsg('diag', '*** Skipping', ftype, fname, '(already declared)')
500 # Always mark feature declared, as though actually emitted
503 # Pull in dependent declaration(s) of the feature.
504 # For types, there may be one type in the 'required' attribute of
505 # the element, as well as many in imbedded <type> and <enum> tags
506 # within the element.
507 # For commands, there may be many in <type> tags within the element.
508 # For enums, no dependencies are allowed (though perhaps if you
509 # have a uint64 enum, it should require GLuint64).
511 if (ftype == 'type'):
512 genProc = self.gen.genType
513 if ('requires' in f.elem.attrib):
514 depname = f.elem.get('requires')
515 self.gen.logMsg('diag', '*** Generating required dependent type',
517 self.generateFeature(depname, 'type', self.typedict)
518 for subtype in f.elem.findall('.//type'):
519 self.gen.logMsg('diag', '*** Generating required dependent <type>',
521 self.generateFeature(subtype.text, 'type', self.typedict)
522 for subtype in f.elem.findall('.//enum'):
523 self.gen.logMsg('diag', '*** Generating required dependent <enum>',
525 self.generateFeature(subtype.text, 'enum', self.enumdict)
526 # If the type is an enum group, look up the corresponding
527 # group in the group dictionary and generate that instead.
528 if (f.elem.get('category') == 'enum'):
529 self.gen.logMsg('diag', '*** Type', fname, 'is an enum group, so generate that instead')
530 group = self.lookupElementInfo(fname, self.groupdict)
532 # Unless this is tested for, it's probably fatal to call below
534 self.logMsg('warn', '*** NO MATCHING ENUM GROUP FOUND!!!')
536 genProc = self.gen.genGroup
538 elif (ftype == 'command'):
539 genProc = self.gen.genCmd
540 for type in f.elem.findall('.//type'):
542 self.gen.logMsg('diag', '*** Generating required parameter type',
544 self.generateFeature(depname, 'type', self.typedict)
545 elif (ftype == 'enum'):
546 genProc = self.gen.genEnum
547 # Actually generate the type only if emitting declarations
548 if self.emitFeatures:
549 self.gen.logMsg('diag', '*** Emitting', ftype, 'decl for', fname)
552 self.gen.logMsg('diag', '*** Skipping', ftype, fname,
553 '(not emitting this feature)')
555 # generateRequiredInterface - generate all interfaces required
556 # by an API version or extension
557 # interface - Element for <version> or <extension>
558 def generateRequiredInterface(self, interface):
559 """Generate required C interface for specified API version/extension"""
561 # Loop over all features inside all <require> tags.
562 # <remove> tags are ignored (handled in pass 1).
563 for features in interface.findall('require'):
564 for t in features.findall('type'):
565 self.generateFeature(t.get('name'), 'type', self.typedict)
566 for e in features.findall('enum'):
567 self.generateFeature(e.get('name'), 'enum', self.enumdict)
568 for c in features.findall('command'):
569 self.generateFeature(c.get('name'), 'command', self.cmddict)
571 # apiGen(genOpts) - generate interface for specified versions
572 # genOpts - GeneratorOptions object with parameters used
573 # by the Generator object.
574 def apiGen(self, genOpts):
575 """Generate interfaces for the specified API type and range of versions"""
577 self.gen.logMsg('diag', '*******************************************')
578 self.gen.logMsg('diag', ' Registry.apiGen file:', genOpts.filename,
579 'api:', genOpts.apiname,
580 'profile:', genOpts.profile)
581 self.gen.logMsg('diag', '*******************************************')
583 self.genOpts = genOpts
584 # Reset required/declared flags for all features
587 # Compile regexps used to select versions & extensions
588 regVersions = re.compile(self.genOpts.versions)
589 regEmitVersions = re.compile(self.genOpts.emitversions)
590 regAddExtensions = re.compile(self.genOpts.addExtensions)
591 regRemoveExtensions = re.compile(self.genOpts.removeExtensions)
593 # Get all matching API versions & add to list of FeatureInfo
596 for key in self.apidict:
597 fi = self.apidict[key]
598 api = fi.elem.get('api')
599 if (api == self.genOpts.apiname):
601 if (regVersions.match(fi.version)):
602 # Matches API & version #s being generated. Mark for
603 # emission and add to the features[] list .
604 # @@ Could use 'declared' instead of 'emit'?
605 fi.emit = (regEmitVersions.match(fi.version) != None)
608 self.gen.logMsg('diag', '*** NOT tagging feature api =', api,
609 'name =', fi.name, 'version =', fi.version,
610 'for emission (does not match emitversions pattern)')
612 self.gen.logMsg('diag', '*** NOT including feature api =', api,
613 'name =', fi.name, 'version =', fi.version,
614 '(does not match requested versions)')
616 self.gen.logMsg('diag', '*** NOT including feature api =', api,
618 '(does not match requested API)')
620 self.gen.logMsg('warn', '*** No matching API versions found!')
622 # Get all matching extensions, in order by their extension number,
623 # and add to the list of features.
624 # Start with extensions tagged with 'api' pattern matching the API
625 # being generated. Add extensions matching the pattern specified in
626 # regExtensions, then remove extensions matching the pattern
627 # specified in regRemoveExtensions
628 for (extName,ei) in sorted(self.extdict.items(),key = lambda x : x[1].number):
632 # Include extension if defaultExtensions is not None and if the
633 # 'supported' attribute matches defaultExtensions. The regexp in
634 # 'supported' must exactly match defaultExtensions, so bracket
636 pat = '^(' + ei.elem.get('supported') + ')$'
637 if (self.genOpts.defaultExtensions and
638 re.match(pat, self.genOpts.defaultExtensions)):
639 self.gen.logMsg('diag', '*** Including extension',
640 extName, "(defaultExtensions matches the 'supported' attribute)")
643 # Include additional extensions if the extension name matches
644 # the regexp specified in the generator options. This allows
645 # forcing extensions into an interface even if they're not
646 # tagged appropriately in the registry.
647 if (regAddExtensions.match(extName) != None):
648 self.gen.logMsg('diag', '*** Including extension',
649 extName, '(matches explicitly requested extensions to add)')
651 # Remove extensions if the name matches the regexp specified
652 # in generator options. This allows forcing removal of
653 # extensions from an interface even if they're tagged that
654 # way in the registry.
655 if (regRemoveExtensions.match(extName) != None):
656 self.gen.logMsg('diag', '*** Removing extension',
657 extName, '(matches explicitly requested extensions to remove)')
660 # If the extension is to be included, add it to the
661 # extension features list.
666 self.gen.logMsg('diag', '*** NOT including extension',
667 extName, '(does not match api attribute or explicitly requested extensions)')
669 # Sort the extension features list, if a sort procedure is defined
670 if (self.genOpts.sortProcedure):
671 self.genOpts.sortProcedure(features)
673 # Pass 1: loop over requested API versions and extensions tagging
674 # types/commands/features as required (in an <require> block) or no
675 # longer required (in an <remove> block). It is possible to remove
676 # a feature in one version and restore it later by requiring it in
678 # If a profile other than 'None' is being generated, it must
679 # match the profile attribute (if any) of the <require> and
681 self.gen.logMsg('diag', '*** PASS 1: TAG FEATURES ********************************************')
683 self.gen.logMsg('diag', '*** PASS 1: Tagging required and removed features for',
685 self.requireAndRemoveFeatures(f.elem, self.genOpts.apiname, self.genOpts.profile)
687 # Pass 2: loop over specified API versions and extensions printing
688 # declarations for required things which haven't already been
690 self.gen.logMsg('diag', '*** PASS 2: GENERATE INTERFACES FOR FEATURES ************************')
691 self.gen.beginFile(self.genOpts)
693 self.gen.logMsg('diag', '*** PASS 2: Generating interface for',
695 emit = self.emitFeatures = f.emit
697 self.gen.logMsg('diag', '*** PASS 2: NOT declaring feature',
698 f.elem.get('name'), 'because it is not tagged for emission')
699 # Generate the interface (or just tag its elements as having been
700 # emitted, if they haven't been).
701 self.gen.beginFeature(f.elem, emit)
702 self.generateRequiredInterface(f.elem)
703 self.gen.endFeature()
706 # apiReset - use between apiGen() calls to reset internal state
709 """Reset type/enum/command dictionaries before generating another API"""
710 for type in self.typedict:
711 self.typedict[type].resetState()
712 for enum in self.enumdict:
713 self.enumdict[enum].resetState()
714 for cmd in self.cmddict:
715 self.cmddict[cmd].resetState()
716 for cmd in self.apidict:
717 self.apidict[cmd].resetState()
719 # validateGroups - check that group= attributes match actual groups
721 def validateGroups(self):
722 """Validate group= attributes on <param> and <proto> tags"""
723 # Keep track of group names not in <group> tags
725 self.gen.logMsg('diag', '*** VALIDATING GROUP ATTRIBUTES ***')
726 for cmd in self.reg.findall('commands/command'):
727 proto = cmd.find('proto')
728 funcname = cmd.find('proto/name').text
729 if ('group' in proto.attrib.keys()):
730 group = proto.get('group')
731 # self.gen.logMsg('diag', '*** Command ', funcname, ' has return group ', group)
732 if (group not in self.groupdict.keys()):
733 # self.gen.logMsg('diag', '*** Command ', funcname, ' has UNKNOWN return group ', group)
734 if (group not in badGroup.keys()):
737 badGroup[group] = badGroup[group] + 1
738 for param in cmd.findall('param'):
739 pname = param.find('name')
743 pname = type.get('name')
744 if ('group' in param.attrib.keys()):
745 group = param.get('group')
746 if (group not in self.groupdict.keys()):
747 # self.gen.logMsg('diag', '*** Command ', funcname, ' param ', pname, ' has UNKNOWN group ', group)
748 if (group not in badGroup.keys()):
751 badGroup[group] = badGroup[group] + 1
752 if (len(badGroup.keys()) > 0):
753 self.gen.logMsg('diag', '*** SUMMARY OF UNRECOGNIZED GROUPS ***')
754 for key in sorted(badGroup.keys()):
755 self.gen.logMsg('diag', ' ', key, ' occurred ', badGroup[key], ' times')