mirror of
https://github.com/ZDoom/zdoom-macos-deps.git
synced 2024-11-22 20:11:51 +00:00
1350 lines
52 KiB
Python
1350 lines
52 KiB
Python
#!/usr/bin/python3 -i
|
|
#
|
|
# Copyright 2013-2022 The Khronos Group Inc.
|
|
#
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
"""Base class for source/header/doc generators, as well as some utility functions."""
|
|
|
|
from __future__ import unicode_literals
|
|
|
|
import io
|
|
import os
|
|
import pdb
|
|
import re
|
|
import shutil
|
|
import sys
|
|
import tempfile
|
|
try:
|
|
from pathlib import Path
|
|
except ImportError:
|
|
from pathlib2 import Path # type: ignore
|
|
|
|
from spec_tools.util import getElemName, getElemType
|
|
|
|
|
|
def write(*args, **kwargs):
|
|
file = kwargs.pop('file', sys.stdout)
|
|
end = kwargs.pop('end', '\n')
|
|
file.write(' '.join(str(arg) for arg in args))
|
|
file.write(end)
|
|
|
|
|
|
def noneStr(s):
|
|
"""Return string argument, or "" if argument is None.
|
|
|
|
Used in converting etree Elements into text.
|
|
s - string to convert"""
|
|
if s:
|
|
return s
|
|
return ""
|
|
|
|
|
|
def enquote(s):
|
|
"""Return string argument with surrounding quotes,
|
|
for serialization into Python code."""
|
|
if s:
|
|
if isinstance(s, str):
|
|
return f"'{s}'"
|
|
else:
|
|
return s
|
|
return None
|
|
|
|
|
|
def regSortCategoryKey(feature):
|
|
"""Sort key for regSortFeatures.
|
|
Sorts by category of the feature name string:
|
|
|
|
- Core API features (those defined with a `<feature>` tag)
|
|
- (sort VKSC after VK - this is Vulkan-specific)
|
|
- ARB/KHR/OES (Khronos extensions)
|
|
- other (EXT/vendor extensions)"""
|
|
|
|
if feature.elem.tag == 'feature':
|
|
if feature.name.startswith('VKSC'):
|
|
return 0.5
|
|
else:
|
|
return 0
|
|
if (feature.category == 'ARB'
|
|
or feature.category == 'KHR'
|
|
or feature.category == 'OES'):
|
|
return 1
|
|
|
|
return 2
|
|
|
|
|
|
def regSortOrderKey(feature):
|
|
"""Sort key for regSortFeatures - key is the sortorder attribute."""
|
|
|
|
return feature.sortorder
|
|
|
|
|
|
def regSortNameKey(feature):
|
|
"""Sort key for regSortFeatures - key is the extension name."""
|
|
|
|
return feature.name
|
|
|
|
|
|
def regSortFeatureVersionKey(feature):
|
|
"""Sort key for regSortFeatures - key is the feature version.
|
|
`<extension>` elements all have version number 0."""
|
|
|
|
return float(feature.versionNumber)
|
|
|
|
|
|
def regSortExtensionNumberKey(feature):
|
|
"""Sort key for regSortFeatures - key is the extension number.
|
|
`<feature>` elements all have extension number 0."""
|
|
|
|
return int(feature.number)
|
|
|
|
|
|
def regSortFeatures(featureList):
|
|
"""Default sort procedure for features.
|
|
|
|
- Sorts by explicit sort order (default 0) relative to other features
|
|
- then by feature category ('feature' or 'extension'),
|
|
- then by version number (for features)
|
|
- then by extension number (for extensions)"""
|
|
featureList.sort(key=regSortExtensionNumberKey)
|
|
featureList.sort(key=regSortFeatureVersionKey)
|
|
featureList.sort(key=regSortCategoryKey)
|
|
featureList.sort(key=regSortOrderKey)
|
|
|
|
|
|
class MissingGeneratorOptionsError(RuntimeError):
|
|
"""Error raised when a Generator tries to do something that requires GeneratorOptions but it is None."""
|
|
|
|
def __init__(self, msg=None):
|
|
full_msg = 'Missing generator options object self.genOpts'
|
|
if msg:
|
|
full_msg += ': ' + msg
|
|
super().__init__(full_msg)
|
|
|
|
|
|
class MissingRegistryError(RuntimeError):
|
|
"""Error raised when a Generator tries to do something that requires a Registry object but it is None."""
|
|
|
|
def __init__(self, msg=None):
|
|
full_msg = 'Missing Registry object self.registry'
|
|
if msg:
|
|
full_msg += ': ' + msg
|
|
super().__init__(full_msg)
|
|
|
|
|
|
class MissingGeneratorOptionsConventionsError(RuntimeError):
|
|
"""Error raised when a Generator tries to do something that requires a Conventions object but it is None."""
|
|
|
|
def __init__(self, msg=None):
|
|
full_msg = 'Missing Conventions object self.genOpts.conventions'
|
|
if msg:
|
|
full_msg += ': ' + msg
|
|
super().__init__(full_msg)
|
|
|
|
|
|
class GeneratorOptions:
|
|
"""Base class for options used during header/documentation production.
|
|
|
|
These options are target language independent, and used by
|
|
Registry.apiGen() and by base OutputGenerator objects."""
|
|
|
|
def __init__(self,
|
|
conventions=None,
|
|
filename=None,
|
|
directory='.',
|
|
genpath=None,
|
|
apiname=None,
|
|
profile=None,
|
|
versions='.*',
|
|
emitversions='.*',
|
|
defaultExtensions=None,
|
|
addExtensions=None,
|
|
removeExtensions=None,
|
|
emitExtensions=None,
|
|
emitSpirv=None,
|
|
emitFormats=None,
|
|
reparentEnums=True,
|
|
sortProcedure=regSortFeatures,
|
|
requireCommandAliases=False,
|
|
):
|
|
"""Constructor.
|
|
|
|
Arguments:
|
|
|
|
- conventions - may be mandatory for some generators:
|
|
an object that implements ConventionsBase
|
|
- filename - basename of file to generate, or None to write to stdout.
|
|
- directory - directory in which to generate filename
|
|
- genpath - path to previously generated files, such as apimap.py
|
|
- apiname - string matching `<api>` 'apiname' attribute, e.g. 'gl'.
|
|
- profile - string specifying API profile , e.g. 'core', or None.
|
|
- versions - regex matching API versions to process interfaces for.
|
|
Normally `'.*'` or `'[0-9][.][0-9]'` to match all defined versions.
|
|
- emitversions - regex matching API versions to actually emit
|
|
interfaces for (though all requested versions are considered
|
|
when deciding which interfaces to generate). For GL 4.3 glext.h,
|
|
this might be `'1[.][2-5]|[2-4][.][0-9]'`.
|
|
- defaultExtensions - If not None, a string which must in its
|
|
entirety match the pattern in the "supported" attribute of
|
|
the `<extension>`. Defaults to None. Usually the same as apiname.
|
|
- addExtensions - regex matching names of additional extensions
|
|
to include. Defaults to None.
|
|
- removeExtensions - regex matching names of extensions to
|
|
remove (after defaultExtensions and addExtensions). Defaults
|
|
to None.
|
|
- emitExtensions - regex matching names of extensions to actually emit
|
|
interfaces for (though all requested versions are considered when
|
|
deciding which interfaces to generate). Defaults to None.
|
|
- emitSpirv - regex matching names of extensions and capabilities
|
|
to actually emit interfaces for.
|
|
- emitFormats - regex matching names of formats to actually emit
|
|
interfaces for.
|
|
- reparentEnums - move <enum> elements which extend an enumerated
|
|
type from <feature> or <extension> elements to the target <enums>
|
|
element. This is required for almost all purposes, but the
|
|
InterfaceGenerator relies on the list of interfaces in the <feature>
|
|
or <extension> being complete. Defaults to True.
|
|
- sortProcedure - takes a list of FeatureInfo objects and sorts
|
|
them in place to a preferred order in the generated output.
|
|
Default is
|
|
- core API versions
|
|
- Khronos (ARB/KHR/OES) extensions
|
|
- All other extensions
|
|
- By core API version number or extension number in each group.
|
|
|
|
The regex patterns can be None or empty, in which case they match
|
|
nothing."""
|
|
self.conventions = conventions
|
|
"""may be mandatory for some generators:
|
|
an object that implements ConventionsBase"""
|
|
|
|
self.filename = filename
|
|
"basename of file to generate, or None to write to stdout."
|
|
|
|
self.genpath = genpath
|
|
"""path to previously generated files, such as apimap.py"""
|
|
|
|
self.directory = directory
|
|
"directory in which to generate filename"
|
|
|
|
self.apiname = apiname
|
|
"string matching `<api>` 'apiname' attribute, e.g. 'gl'."
|
|
|
|
self.profile = profile
|
|
"string specifying API profile , e.g. 'core', or None."
|
|
|
|
self.versions = self.emptyRegex(versions)
|
|
"""regex matching API versions to process interfaces for.
|
|
Normally `'.*'` or `'[0-9][.][0-9]'` to match all defined versions."""
|
|
|
|
self.emitversions = self.emptyRegex(emitversions)
|
|
"""regex matching API versions to actually emit
|
|
interfaces for (though all requested versions are considered
|
|
when deciding which interfaces to generate). For GL 4.3 glext.h,
|
|
this might be `'1[.][2-5]|[2-4][.][0-9]'`."""
|
|
|
|
self.defaultExtensions = defaultExtensions
|
|
"""If not None, a string which must in its
|
|
entirety match the pattern in the "supported" attribute of
|
|
the `<extension>`. Defaults to None. Usually the same as apiname."""
|
|
|
|
self.addExtensions = self.emptyRegex(addExtensions)
|
|
"""regex matching names of additional extensions
|
|
to include. Defaults to None."""
|
|
|
|
self.removeExtensions = self.emptyRegex(removeExtensions)
|
|
"""regex matching names of extensions to
|
|
remove (after defaultExtensions and addExtensions). Defaults
|
|
to None."""
|
|
|
|
self.emitExtensions = self.emptyRegex(emitExtensions)
|
|
"""regex matching names of extensions to actually emit
|
|
interfaces for (though all requested versions are considered when
|
|
deciding which interfaces to generate)."""
|
|
|
|
self.emitSpirv = self.emptyRegex(emitSpirv)
|
|
"""regex matching names of extensions and capabilities
|
|
to actually emit interfaces for."""
|
|
|
|
self.emitFormats = self.emptyRegex(emitFormats)
|
|
"""regex matching names of formats
|
|
to actually emit interfaces for."""
|
|
|
|
self.reparentEnums = reparentEnums
|
|
"""boolean specifying whether to remove <enum> elements from
|
|
<feature> or <extension> when extending an <enums> type."""
|
|
|
|
self.sortProcedure = sortProcedure
|
|
"""takes a list of FeatureInfo objects and sorts
|
|
them in place to a preferred order in the generated output.
|
|
Default is core API versions, ARB/KHR/OES extensions, all
|
|
other extensions, alphabetically within each group."""
|
|
|
|
self.codeGenerator = False
|
|
"""True if this generator makes compilable code"""
|
|
|
|
self.registry = None
|
|
"""Populated later with the registry object."""
|
|
|
|
self.requireCommandAliases = requireCommandAliases
|
|
"""True if alias= attributes of <command> tags are transitively
|
|
required."""
|
|
|
|
def emptyRegex(self, pat):
|
|
"""Substitute a regular expression which matches no version
|
|
or extension names for None or the empty string."""
|
|
if not pat:
|
|
return '_nomatch_^'
|
|
|
|
return pat
|
|
|
|
|
|
class OutputGenerator:
|
|
"""Generate specified API interfaces in a specific style, such as a C header.
|
|
|
|
Base class for generating API interfaces.
|
|
Manages basic logic, logging, and output file control.
|
|
Derived classes actually generate formatted output.
|
|
"""
|
|
|
|
# categoryToPath - map XML 'category' to include file directory name
|
|
categoryToPath = {
|
|
'bitmask': 'flags',
|
|
'enum': 'enums',
|
|
'funcpointer': 'funcpointers',
|
|
'handle': 'handles',
|
|
'define': 'defines',
|
|
'basetype': 'basetypes',
|
|
}
|
|
|
|
def breakName(self, name, msg):
|
|
"""Break into debugger if this is a special name"""
|
|
|
|
# List of string names to break on
|
|
bad = (
|
|
)
|
|
|
|
if name in bad and True:
|
|
print('breakName {}: {}'.format(name, msg))
|
|
pdb.set_trace()
|
|
|
|
def __init__(self, errFile=sys.stderr, warnFile=sys.stderr, diagFile=sys.stdout):
|
|
"""Constructor
|
|
|
|
- errFile, warnFile, diagFile - file handles to write errors,
|
|
warnings, diagnostics to. May be None to not write."""
|
|
self.outFile = None
|
|
self.errFile = errFile
|
|
self.warnFile = warnFile
|
|
self.diagFile = diagFile
|
|
# Internal state
|
|
self.featureName = None
|
|
"""The current feature name being generated."""
|
|
|
|
self.genOpts = None
|
|
"""The GeneratorOptions subclass instance."""
|
|
|
|
self.registry = None
|
|
"""The specification registry object."""
|
|
|
|
self.featureDictionary = {}
|
|
"""The dictionary of dictionaries of API features."""
|
|
|
|
# Used for extension enum value generation
|
|
self.extBase = 1000000000
|
|
self.extBlockSize = 1000
|
|
self.madeDirs = {}
|
|
|
|
# API dictionary, which may be loaded by the beginFile method of
|
|
# derived generators.
|
|
self.apidict = None
|
|
|
|
# File suffix for generated files, set in beginFile below.
|
|
self.file_suffix = ''
|
|
|
|
def logMsg(self, level, *args):
|
|
"""Write a message of different categories to different
|
|
destinations.
|
|
|
|
- `level`
|
|
- 'diag' (diagnostic, voluminous)
|
|
- 'warn' (warning)
|
|
- 'error' (fatal error - raises exception after logging)
|
|
|
|
- `*args` - print()-style arguments to direct to corresponding log"""
|
|
if level == 'error':
|
|
strfile = io.StringIO()
|
|
write('ERROR:', *args, file=strfile)
|
|
if self.errFile is not None:
|
|
write(strfile.getvalue(), file=self.errFile)
|
|
raise UserWarning(strfile.getvalue())
|
|
elif level == 'warn':
|
|
if self.warnFile is not None:
|
|
write('WARNING:', *args, file=self.warnFile)
|
|
elif level == 'diag':
|
|
if self.diagFile is not None:
|
|
write('DIAG:', *args, file=self.diagFile)
|
|
else:
|
|
raise UserWarning(
|
|
'*** FATAL ERROR in Generator.logMsg: unknown level:' + level)
|
|
|
|
def enumToValue(self, elem, needsNum, bitwidth = 32,
|
|
forceSuffix = False, parent_for_alias_dereference=None):
|
|
"""Parse and convert an `<enum>` tag into a value.
|
|
|
|
- elem - <enum> Element
|
|
- needsNum - generate a numeric representation of the element value
|
|
- bitwidth - size of the numeric representation in bits (32 or 64)
|
|
- forceSuffix - if True, always use a 'U' / 'ULL' suffix on integers
|
|
- parent_for_alias_dereference - if not None, an Element containing
|
|
the parent of elem, used to look for elements this is an alias of
|
|
|
|
Returns a list:
|
|
|
|
- first element - integer representation of the value, or None
|
|
if needsNum is False. The value must be a legal number
|
|
if needsNum is True.
|
|
- second element - string representation of the value
|
|
|
|
There are several possible representations of values.
|
|
|
|
- A 'value' attribute simply contains the value.
|
|
- A 'bitpos' attribute defines a value by specifying the bit
|
|
position which is set in that value.
|
|
- An 'offset','extbase','extends' triplet specifies a value
|
|
as an offset to a base value defined by the specified
|
|
'extbase' extension name, which is then cast to the
|
|
typename specified by 'extends'. This requires probing
|
|
the registry database, and imbeds knowledge of the
|
|
API extension enum scheme in this function.
|
|
- An 'alias' attribute contains the name of another enum
|
|
which this is an alias of. The other enum must be
|
|
declared first when emitting this enum."""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
if self.genOpts.conventions is None:
|
|
raise MissingGeneratorOptionsConventionsError()
|
|
|
|
name = elem.get('name')
|
|
numVal = None
|
|
if 'value' in elem.keys():
|
|
value = elem.get('value')
|
|
# print('About to translate value =', value, 'type =', type(value))
|
|
if needsNum:
|
|
numVal = int(value, 0)
|
|
# If there is a non-integer, numeric 'type' attribute (e.g. 'u' or
|
|
# 'ull'), append it to the string value.
|
|
# t = enuminfo.elem.get('type')
|
|
# if t is not None and t != '' and t != 'i' and t != 's':
|
|
# value += enuminfo.type
|
|
if forceSuffix:
|
|
if bitwidth == 64:
|
|
value = value + 'ULL'
|
|
else:
|
|
value = value + 'U'
|
|
self.logMsg('diag', 'Enum', name, '-> value [', numVal, ',', value, ']')
|
|
return [numVal, value]
|
|
if 'bitpos' in elem.keys():
|
|
value = elem.get('bitpos')
|
|
bitpos = int(value, 0)
|
|
numVal = 1 << bitpos
|
|
value = '0x%08x' % numVal
|
|
if bitwidth == 64 or bitpos >= 32:
|
|
value = value + 'ULL'
|
|
elif forceSuffix:
|
|
value = value + 'U'
|
|
self.logMsg('diag', 'Enum', name, '-> bitpos [', numVal, ',', value, ']')
|
|
return [numVal, value]
|
|
if 'offset' in elem.keys():
|
|
# Obtain values in the mapping from the attributes
|
|
enumNegative = False
|
|
offset = int(elem.get('offset'), 0)
|
|
extnumber = int(elem.get('extnumber'), 0)
|
|
extends = elem.get('extends')
|
|
if 'dir' in elem.keys():
|
|
enumNegative = True
|
|
self.logMsg('diag', 'Enum', name, 'offset =', offset,
|
|
'extnumber =', extnumber, 'extends =', extends,
|
|
'enumNegative =', enumNegative)
|
|
# Now determine the actual enumerant value, as defined
|
|
# in the "Layers and Extensions" appendix of the spec.
|
|
numVal = self.extBase + (extnumber - 1) * self.extBlockSize + offset
|
|
if enumNegative:
|
|
numVal *= -1
|
|
value = '%d' % numVal
|
|
# More logic needed!
|
|
self.logMsg('diag', 'Enum', name, '-> offset [', numVal, ',', value, ']')
|
|
return [numVal, value]
|
|
if 'alias' in elem.keys():
|
|
alias_of = elem.get('alias')
|
|
if parent_for_alias_dereference is None:
|
|
return (None, alias_of)
|
|
siblings = parent_for_alias_dereference.findall('enum')
|
|
for sib in siblings:
|
|
sib_name = sib.get('name')
|
|
if sib_name == alias_of:
|
|
return self.enumToValue(sib, needsNum)
|
|
raise RuntimeError("Could not find the aliased enum value")
|
|
return [None, None]
|
|
|
|
def checkDuplicateEnums(self, enums):
|
|
"""Check enumerated values for duplicates.
|
|
|
|
- enums - list of `<enum>` Elements
|
|
|
|
returns the list with duplicates stripped"""
|
|
# Dictionaries indexed by name and numeric value.
|
|
# Entries are [ Element, numVal, strVal ] matching name or value
|
|
|
|
nameMap = {}
|
|
valueMap = {}
|
|
|
|
stripped = []
|
|
for elem in enums:
|
|
name = elem.get('name')
|
|
(numVal, strVal) = self.enumToValue(elem, True)
|
|
|
|
if name in nameMap:
|
|
# Duplicate name found; check values
|
|
(name2, numVal2, strVal2) = nameMap[name]
|
|
|
|
# Duplicate enum values for the same name are benign. This
|
|
# happens when defining the same enum conditionally in
|
|
# several extension blocks.
|
|
if (strVal2 == strVal or (numVal is not None
|
|
and numVal == numVal2)):
|
|
True
|
|
# self.logMsg('info', 'checkDuplicateEnums: Duplicate enum (' + name +
|
|
# ') found with the same value:' + strVal)
|
|
else:
|
|
self.logMsg('warn', 'checkDuplicateEnums: Duplicate enum (' + name
|
|
+ ') found with different values:' + strVal
|
|
+ ' and ' + strVal2)
|
|
|
|
# Do not add the duplicate to the returned list
|
|
continue
|
|
elif numVal in valueMap:
|
|
# Duplicate value found (such as an alias); report it, but
|
|
# still add this enum to the list.
|
|
(name2, numVal2, strVal2) = valueMap[numVal]
|
|
|
|
msg = 'Two enums found with the same value: {} = {} = {}'.format(
|
|
name, name2.get('name'), strVal)
|
|
self.logMsg('error', msg)
|
|
|
|
# Track this enum to detect followon duplicates
|
|
nameMap[name] = [elem, numVal, strVal]
|
|
if numVal is not None:
|
|
valueMap[numVal] = [elem, numVal, strVal]
|
|
|
|
# Add this enum to the list
|
|
stripped.append(elem)
|
|
|
|
# Return the list
|
|
return stripped
|
|
|
|
def misracstyle(self):
|
|
return False;
|
|
|
|
def misracppstyle(self):
|
|
return False;
|
|
|
|
def buildEnumCDecl(self, expand, groupinfo, groupName):
|
|
"""Generate the C declaration for an enum"""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
if self.genOpts.conventions is None:
|
|
raise MissingGeneratorOptionsConventionsError()
|
|
|
|
groupElem = groupinfo.elem
|
|
|
|
# Determine the required bit width for the enum group.
|
|
# 32 is the default, which generates C enum types for the values.
|
|
bitwidth = 32
|
|
|
|
# If the constFlagBits preference is set, 64 is the default for bitmasks
|
|
if self.genOpts.conventions.constFlagBits and groupElem.get('type') == 'bitmask':
|
|
bitwidth = 64
|
|
|
|
# Check for an explicitly defined bitwidth, which will override any defaults.
|
|
if groupElem.get('bitwidth'):
|
|
try:
|
|
bitwidth = int(groupElem.get('bitwidth'))
|
|
except ValueError as ve:
|
|
self.logMsg('error', 'Invalid value for bitwidth attribute (', groupElem.get('bitwidth'), ') for ', groupName, ' - must be an integer value\n')
|
|
exit(1)
|
|
|
|
usebitmask = False
|
|
usedefine = False
|
|
|
|
# Bitmask flags can be generated as either "static const uint{32,64}_t" values,
|
|
# or as 32-bit C enums. 64-bit types must use uint64_t values.
|
|
if groupElem.get('type') == 'bitmask':
|
|
if bitwidth > 32 or self.misracppstyle():
|
|
usebitmask = True
|
|
if self.misracstyle():
|
|
usedefine = True
|
|
|
|
if usedefine or usebitmask:
|
|
# Validate the bitwidth and generate values appropriately
|
|
if bitwidth > 64:
|
|
self.logMsg('error', 'Invalid value for bitwidth attribute (', groupElem.get('bitwidth'), ') for bitmask type ', groupName, ' - must be less than or equal to 64\n')
|
|
exit(1)
|
|
else:
|
|
return self.buildEnumCDecl_BitmaskOrDefine(groupinfo, groupName, bitwidth, usedefine)
|
|
else:
|
|
# Validate the bitwidth and generate values appropriately
|
|
if bitwidth > 32:
|
|
self.logMsg('error', 'Invalid value for bitwidth attribute (', groupElem.get('bitwidth'), ') for enum type ', groupName, ' - must be less than or equal to 32\n')
|
|
exit(1)
|
|
else:
|
|
return self.buildEnumCDecl_Enum(expand, groupinfo, groupName)
|
|
|
|
def buildEnumCDecl_BitmaskOrDefine(self, groupinfo, groupName, bitwidth, usedefine):
|
|
"""Generate the C declaration for an "enum" that is actually a
|
|
set of flag bits"""
|
|
groupElem = groupinfo.elem
|
|
flagTypeName = groupElem.get('name')
|
|
|
|
# Prefix
|
|
body = "// Flag bits for " + flagTypeName + "\n"
|
|
|
|
if bitwidth == 64:
|
|
body += "typedef VkFlags64 %s;\n" % flagTypeName;
|
|
else:
|
|
body += "typedef VkFlags %s;\n" % flagTypeName;
|
|
|
|
# Maximum allowable value for a flag (unsigned 64-bit integer)
|
|
maxValidValue = 2**(64) - 1
|
|
minValidValue = 0
|
|
|
|
# Get a list of nested 'enum' tags.
|
|
enums = groupElem.findall('enum')
|
|
|
|
# Check for and report duplicates, and return a list with them
|
|
# removed.
|
|
enums = self.checkDuplicateEnums(enums)
|
|
|
|
# Accumulate non-numeric enumerant values separately and append
|
|
# them following the numeric values, to allow for aliases.
|
|
# NOTE: this does not do a topological sort yet, so aliases of
|
|
# aliases can still get in the wrong order.
|
|
aliasText = ''
|
|
|
|
# Loop over the nested 'enum' tags.
|
|
for elem in enums:
|
|
# Convert the value to an integer and use that to track min/max.
|
|
# Values of form -(number) are accepted but nothing more complex.
|
|
# Should catch exceptions here for more complex constructs. Not yet.
|
|
(numVal, strVal) = self.enumToValue(elem, True, bitwidth, True)
|
|
name = elem.get('name')
|
|
|
|
# Range check for the enum value
|
|
if numVal is not None and (numVal > maxValidValue or numVal < minValidValue):
|
|
self.logMsg('error', 'Allowable range for flag types in C is [', minValidValue, ',', maxValidValue, '], but', name, 'flag has a value outside of this (', strVal, ')\n')
|
|
exit(1)
|
|
|
|
decl = self.genRequirements(name, mustBeFound = False)
|
|
|
|
if self.isEnumRequired(elem):
|
|
protect = elem.get('protect')
|
|
if protect is not None:
|
|
body += '#ifdef {}\n'.format(protect)
|
|
|
|
if usedefine:
|
|
decl += "#define {} {}\n".format(name, strVal)
|
|
elif self.misracppstyle():
|
|
decl += "static constexpr {} {} {{{}}};\n".format(flagTypeName, name, strVal)
|
|
else:
|
|
# Some C compilers only allow initializing a 'static const' variable with a literal value.
|
|
# So initializing an alias from another 'static const' value would fail to compile.
|
|
# Work around this by chasing the aliases to get the actual value.
|
|
while numVal is None:
|
|
alias = self.registry.tree.find("enums/enum[@name='" + strVal + "']")
|
|
if alias is not None:
|
|
(numVal, strVal) = self.enumToValue(alias, True, bitwidth, True)
|
|
else:
|
|
self.logMsg('error', 'No such alias {} for enum {}'.format(strVal, name))
|
|
decl += "static const {} {} = {};\n".format(flagTypeName, name, strVal)
|
|
|
|
if numVal is not None:
|
|
body += decl
|
|
else:
|
|
aliasText += decl
|
|
|
|
if protect is not None:
|
|
body += '#endif\n'
|
|
|
|
# Now append the non-numeric enumerant values
|
|
body += aliasText
|
|
|
|
# Postfix
|
|
|
|
return ("bitmask", body)
|
|
|
|
def buildEnumCDecl_Enum(self, expand, groupinfo, groupName):
|
|
"""Generate the C declaration for an enumerated type"""
|
|
groupElem = groupinfo.elem
|
|
|
|
# Break the group name into prefix and suffix portions for range
|
|
# enum generation
|
|
expandName = re.sub(r'([0-9]+|[a-z_])([A-Z0-9])', r'\1_\2', groupName).upper()
|
|
expandPrefix = expandName
|
|
expandSuffix = ''
|
|
expandSuffixMatch = re.search(r'[A-Z][A-Z]+$', groupName)
|
|
if expandSuffixMatch:
|
|
expandSuffix = '_' + expandSuffixMatch.group()
|
|
# Strip off the suffix from the prefix
|
|
expandPrefix = expandName.rsplit(expandSuffix, 1)[0]
|
|
|
|
# Prefix
|
|
body = ["typedef enum %s {" % groupName]
|
|
|
|
# @@ Should use the type="bitmask" attribute instead
|
|
isEnum = ('FLAG_BITS' not in expandPrefix)
|
|
|
|
# Allowable range for a C enum - which is that of a signed 32-bit integer
|
|
maxValidValue = 2**(32 - 1) - 1
|
|
minValidValue = (maxValidValue * -1) - 1
|
|
|
|
# Get a list of nested 'enum' tags.
|
|
enums = groupElem.findall('enum')
|
|
|
|
# Check for and report duplicates, and return a list with them
|
|
# removed.
|
|
enums = self.checkDuplicateEnums(enums)
|
|
|
|
# Loop over the nested 'enum' tags. Keep track of the minimum and
|
|
# maximum numeric values, if they can be determined; but only for
|
|
# core API enumerants, not extension enumerants. This is inferred
|
|
# by looking for 'extends' attributes.
|
|
minName = None
|
|
|
|
# Accumulate non-numeric enumerant values separately and append
|
|
# them following the numeric values, to allow for aliases.
|
|
# NOTE: this does not do a topological sort yet, so aliases of
|
|
# aliases can still get in the wrong order.
|
|
aliasText = []
|
|
|
|
maxName = None
|
|
minValue = None
|
|
maxValue = None
|
|
for elem in enums:
|
|
# Convert the value to an integer and use that to track min/max.
|
|
# Values of form -(number) are accepted but nothing more complex.
|
|
# Should catch exceptions here for more complex constructs. Not yet.
|
|
(numVal, strVal) = self.enumToValue(elem, True)
|
|
name = elem.get('name')
|
|
|
|
# Extension enumerants are only included if they are required
|
|
if self.isEnumRequired(elem):
|
|
decl = ''
|
|
|
|
protect = elem.get('protect')
|
|
if protect is not None:
|
|
decl += '#ifdef {}\n'.format(protect)
|
|
|
|
# Indent requirements comment, if there is one
|
|
requirements = self.genRequirements(name, mustBeFound = False)
|
|
if requirements != '':
|
|
requirements = ' ' + requirements
|
|
decl += requirements
|
|
decl += ' {} = {},'.format(name, strVal)
|
|
|
|
if protect is not None:
|
|
decl += '\n#endif'
|
|
|
|
if numVal is not None:
|
|
body.append(decl)
|
|
else:
|
|
aliasText.append(decl)
|
|
|
|
# Range check for the enum value
|
|
if numVal is not None and (numVal > maxValidValue or numVal < minValidValue):
|
|
self.logMsg('error', 'Allowable range for C enum types is [', minValidValue, ',', maxValidValue, '], but', name, 'has a value outside of this (', strVal, ')\n')
|
|
exit(1)
|
|
|
|
# Do not track min/max for non-numbers (numVal is None)
|
|
if isEnum and numVal is not None and elem.get('extends') is None:
|
|
if minName is None:
|
|
minName = maxName = name
|
|
minValue = maxValue = numVal
|
|
elif minValue is None or numVal < minValue:
|
|
minName = name
|
|
minValue = numVal
|
|
elif maxValue is None or numVal > maxValue:
|
|
maxName = name
|
|
maxValue = numVal
|
|
|
|
# Now append the non-numeric enumerant values
|
|
body.extend(aliasText)
|
|
|
|
# Generate min/max value tokens - legacy use case.
|
|
if isEnum and expand:
|
|
body.extend((f' {expandPrefix}_BEGIN_RANGE{expandSuffix} = {minName},',
|
|
f' {expandPrefix}_END_RANGE{expandSuffix} = {maxName},',
|
|
f' {expandPrefix}_RANGE_SIZE{expandSuffix} = ({maxName} - {minName} + 1),'))
|
|
|
|
# Generate a range-padding value to ensure the enum is 32 bits, but
|
|
# only in code generators, so it does not appear in documentation
|
|
if (self.genOpts.codeGenerator or
|
|
self.conventions.generate_max_enum_in_docs):
|
|
body.append(f' {expandPrefix}_MAX_ENUM{expandSuffix} = 0x7FFFFFFF')
|
|
|
|
# Postfix
|
|
body.append("} %s;" % groupName)
|
|
|
|
# Determine appropriate section for this declaration
|
|
if groupElem.get('type') == 'bitmask':
|
|
section = 'bitmask'
|
|
else:
|
|
section = 'group'
|
|
|
|
return (section, '\n'.join(body))
|
|
|
|
def buildConstantCDecl(self, enuminfo, name, alias):
|
|
"""Generate the C declaration for a constant (a single <enum>
|
|
value).
|
|
|
|
<enum> tags may specify their values in several ways, but are
|
|
usually just integers or floating-point numbers."""
|
|
|
|
(_, strVal) = self.enumToValue(enuminfo.elem, False)
|
|
|
|
if self.misracppstyle() and enuminfo.elem.get('type') and not alias:
|
|
# Generate e.g.: static constexpr uint32_t x = ~static_cast<uint32_t>(1U);
|
|
# This appeases MISRA "underlying type" rules.
|
|
typeStr = enuminfo.elem.get('type');
|
|
invert = '~' in strVal
|
|
number = strVal.strip("()~UL")
|
|
if typeStr != "float":
|
|
number += 'U'
|
|
strVal = "~" if invert else ""
|
|
strVal += "static_cast<" + typeStr + ">(" + number + ")"
|
|
body = 'static constexpr ' + typeStr.ljust(9) + name.ljust(33) + ' {' + strVal + '};'
|
|
elif enuminfo.elem.get('type') and not alias:
|
|
# Generate e.g.: #define x (~0ULL)
|
|
typeStr = enuminfo.elem.get('type');
|
|
invert = '~' in strVal
|
|
paren = '(' in strVal
|
|
number = strVal.strip("()~UL")
|
|
if typeStr != "float":
|
|
if typeStr == "uint64_t":
|
|
number += 'ULL'
|
|
else:
|
|
number += 'U'
|
|
strVal = "~" if invert else ""
|
|
strVal += number
|
|
if paren:
|
|
strVal = "(" + strVal + ")";
|
|
body = '#define ' + name.ljust(33) + ' ' + strVal;
|
|
else:
|
|
body = '#define ' + name.ljust(33) + ' ' + strVal
|
|
|
|
return body
|
|
|
|
def makeDir(self, path):
|
|
"""Create a directory, if not already done.
|
|
|
|
Generally called from derived generators creating hierarchies."""
|
|
self.logMsg('diag', 'OutputGenerator::makeDir(' + path + ')')
|
|
if path not in self.madeDirs:
|
|
# This can get race conditions with multiple writers, see
|
|
# https://stackoverflow.com/questions/273192/
|
|
if not os.path.exists(path):
|
|
os.makedirs(path)
|
|
self.madeDirs[path] = None
|
|
|
|
def beginFile(self, genOpts):
|
|
"""Start a new interface file
|
|
|
|
- genOpts - GeneratorOptions controlling what is generated and how"""
|
|
|
|
self.genOpts = genOpts
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
if self.genOpts.conventions is None:
|
|
raise MissingGeneratorOptionsConventionsError()
|
|
self.should_insert_may_alias_macro = \
|
|
self.genOpts.conventions.should_insert_may_alias_macro(self.genOpts)
|
|
self.file_suffix = self.genOpts.conventions.file_suffix
|
|
|
|
# Try to import the API dictionary, apimap.py, if it exists. Nothing
|
|
# in apimap.py cannot be extracted directly from the XML, and in the
|
|
# future we should do that.
|
|
if self.genOpts.genpath is not None:
|
|
try:
|
|
sys.path.insert(0, self.genOpts.genpath)
|
|
import apimap
|
|
self.apidict = apimap
|
|
except ImportError:
|
|
self.apidict = None
|
|
|
|
self.conventions = genOpts.conventions
|
|
|
|
# Open a temporary file for accumulating output.
|
|
if self.genOpts.filename is not None:
|
|
self.outFile = tempfile.NamedTemporaryFile(mode='w', encoding='utf-8', newline='\n', delete=False)
|
|
else:
|
|
self.outFile = sys.stdout
|
|
|
|
def endFile(self):
|
|
if self.errFile:
|
|
self.errFile.flush()
|
|
if self.warnFile:
|
|
self.warnFile.flush()
|
|
if self.diagFile:
|
|
self.diagFile.flush()
|
|
if self.outFile:
|
|
self.outFile.flush()
|
|
if self.outFile != sys.stdout and self.outFile != sys.stderr:
|
|
self.outFile.close()
|
|
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
|
|
# On successfully generating output, move the temporary file to the
|
|
# target file.
|
|
if self.genOpts.filename is not None:
|
|
if sys.platform == 'win32':
|
|
directory = Path(self.genOpts.directory)
|
|
if not Path.exists(directory):
|
|
os.makedirs(directory)
|
|
shutil.copy(self.outFile.name, self.genOpts.directory + '/' + self.genOpts.filename)
|
|
os.remove(self.outFile.name)
|
|
self.genOpts = None
|
|
|
|
def beginFeature(self, interface, emit):
|
|
"""Write interface for a feature and tag generated features as having been done.
|
|
|
|
- interface - element for the `<version>` / `<extension>` to generate
|
|
- emit - actually write to the header only when True"""
|
|
self.emit = emit
|
|
self.featureName = interface.get('name')
|
|
# If there is an additional 'protect' attribute in the feature, save it
|
|
self.featureExtraProtect = interface.get('protect')
|
|
|
|
def endFeature(self):
|
|
"""Finish an interface file, closing it when done.
|
|
|
|
Derived classes responsible for emitting feature"""
|
|
self.featureName = None
|
|
self.featureExtraProtect = None
|
|
|
|
def genRequirements(self, name, mustBeFound = True):
|
|
"""Generate text showing what core versions and extensions introduce
|
|
an API. This exists in the base Generator class because it is used by
|
|
the shared enumerant-generating interfaces (buildEnumCDecl, etc.).
|
|
Here it returns an empty string for most generators, but can be
|
|
overridden by e.g. DocGenerator.
|
|
|
|
- name - name of the API
|
|
- mustBeFound - If True, when requirements for 'name' cannot be
|
|
determined, a warning comment is generated.
|
|
"""
|
|
|
|
return ''
|
|
|
|
def validateFeature(self, featureType, featureName):
|
|
"""Validate we are generating something only inside a `<feature>` tag"""
|
|
if self.featureName is None:
|
|
raise UserWarning('Attempt to generate', featureType,
|
|
featureName, 'when not in feature')
|
|
|
|
def genType(self, typeinfo, name, alias):
|
|
"""Generate interface for a type
|
|
|
|
- typeinfo - TypeInfo for a type
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
self.validateFeature('type', name)
|
|
|
|
def genStruct(self, typeinfo, typeName, alias):
|
|
"""Generate interface for a C "struct" type.
|
|
|
|
- typeinfo - TypeInfo for a type interpreted as a struct
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
self.validateFeature('struct', typeName)
|
|
|
|
# The mixed-mode <member> tags may contain no-op <comment> tags.
|
|
# It is convenient to remove them here where all output generators
|
|
# will benefit.
|
|
for member in typeinfo.elem.findall('.//member'):
|
|
for comment in member.findall('comment'):
|
|
member.remove(comment)
|
|
|
|
def genGroup(self, groupinfo, groupName, alias):
|
|
"""Generate interface for a group of enums (C "enum")
|
|
|
|
- groupinfo - GroupInfo for a group.
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
|
|
self.validateFeature('group', groupName)
|
|
|
|
def genEnum(self, enuminfo, typeName, alias):
|
|
"""Generate interface for an enum (constant).
|
|
|
|
- enuminfo - EnumInfo for an enum
|
|
- name - enum name
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
self.validateFeature('enum', typeName)
|
|
|
|
def genCmd(self, cmd, cmdinfo, alias):
|
|
"""Generate interface for a command.
|
|
|
|
- cmdinfo - CmdInfo for a command
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
self.validateFeature('command', cmdinfo)
|
|
|
|
def genSpirv(self, spirv, spirvinfo, alias):
|
|
"""Generate interface for a spirv element.
|
|
|
|
- spirvinfo - SpirvInfo for a command
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
return
|
|
|
|
def genFormat(self, format, formatinfo, alias):
|
|
"""Generate interface for a format element.
|
|
|
|
- formatinfo - FormatInfo
|
|
|
|
Extend to generate as desired in your derived class."""
|
|
return
|
|
|
|
def makeProtoName(self, name, tail):
|
|
"""Turn a `<proto>` `<name>` into C-language prototype
|
|
and typedef declarations for that name.
|
|
|
|
- name - contents of `<name>` tag
|
|
- tail - whatever text follows that tag in the Element"""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
return self.genOpts.apientry + name + tail
|
|
|
|
def makeTypedefName(self, name, tail):
|
|
"""Make the function-pointer typedef name for a command."""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
return '(' + self.genOpts.apientryp + 'PFN_' + name + tail + ')'
|
|
|
|
def makeCParamDecl(self, param, aligncol):
|
|
"""Return a string which is an indented, formatted
|
|
declaration for a `<param>` or `<member>` block (e.g. function parameter
|
|
or structure/union member).
|
|
|
|
- param - Element (`<param>` or `<member>`) to format
|
|
- aligncol - if non-zero, attempt to align the nested `<name>` element
|
|
at this column"""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
if self.genOpts.conventions is None:
|
|
raise MissingGeneratorOptionsConventionsError()
|
|
indent = ' '
|
|
paramdecl = indent
|
|
prefix = noneStr(param.text)
|
|
|
|
for elem in param:
|
|
text = noneStr(elem.text)
|
|
tail = noneStr(elem.tail)
|
|
|
|
if self.should_insert_may_alias_macro and self.genOpts.conventions.is_voidpointer_alias(elem.tag, text, tail):
|
|
# OpenXR-specific macro insertion - but not in apiinc for the spec
|
|
tail = self.genOpts.conventions.make_voidpointer_alias(tail)
|
|
if elem.tag == 'name' and aligncol > 0:
|
|
self.logMsg('diag', 'Aligning parameter', elem.text, 'to column', self.genOpts.alignFuncParam)
|
|
# Align at specified column, if possible
|
|
paramdecl = paramdecl.rstrip()
|
|
oldLen = len(paramdecl)
|
|
# This works around a problem where very long type names -
|
|
# longer than the alignment column - would run into the tail
|
|
# text.
|
|
paramdecl = paramdecl.ljust(aligncol - 1) + ' '
|
|
newLen = len(paramdecl)
|
|
self.logMsg('diag', 'Adjust length of parameter decl from', oldLen, 'to', newLen, ':', paramdecl)
|
|
|
|
if (self.misracppstyle() and prefix.find('const ') != -1):
|
|
# Change pointer type order from e.g. "const void *" to "void const *".
|
|
# If the string starts with 'const', reorder it to be after the first type.
|
|
paramdecl += prefix.replace('const ', '') + text + ' const' + tail
|
|
else:
|
|
paramdecl += prefix + text + tail
|
|
|
|
# Clear prefix for subsequent iterations
|
|
prefix = ''
|
|
|
|
paramdecl = paramdecl + prefix
|
|
|
|
if aligncol == 0:
|
|
# Squeeze out multiple spaces other than the indentation
|
|
paramdecl = indent + ' '.join(paramdecl.split())
|
|
return paramdecl
|
|
|
|
def getCParamTypeLength(self, param):
|
|
"""Return the length of the type field is an indented, formatted
|
|
declaration for a `<param>` or `<member>` block (e.g. function parameter
|
|
or structure/union member).
|
|
|
|
- param - Element (`<param>` or `<member>`) to identify"""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
if self.genOpts.conventions is None:
|
|
raise MissingGeneratorOptionsConventionsError()
|
|
|
|
# Allow for missing <name> tag
|
|
newLen = 0
|
|
paramdecl = ' ' + noneStr(param.text)
|
|
for elem in param:
|
|
text = noneStr(elem.text)
|
|
tail = noneStr(elem.tail)
|
|
|
|
if self.should_insert_may_alias_macro and self.genOpts.conventions.is_voidpointer_alias(elem.tag, text, tail):
|
|
# OpenXR-specific macro insertion
|
|
tail = self.genOpts.conventions.make_voidpointer_alias(tail)
|
|
if elem.tag == 'name':
|
|
# Align at specified column, if possible
|
|
newLen = len(paramdecl.rstrip())
|
|
self.logMsg('diag', 'Identifying length of', elem.text, 'as', newLen)
|
|
paramdecl += text + tail
|
|
|
|
return newLen
|
|
|
|
def getMaxCParamTypeLength(self, info):
|
|
"""Return the length of the longest type field for a member/parameter.
|
|
|
|
- info - TypeInfo or CommandInfo.
|
|
"""
|
|
lengths = (self.getCParamTypeLength(member)
|
|
for member in info.getMembers())
|
|
return max(lengths)
|
|
|
|
def getHandleParent(self, typename):
|
|
"""Get the parent of a handle object."""
|
|
if self.registry is None:
|
|
raise MissingRegistryError()
|
|
|
|
info = self.registry.typedict.get(typename)
|
|
if info is None:
|
|
return None
|
|
|
|
elem = info.elem
|
|
if elem is not None:
|
|
return elem.get('parent')
|
|
|
|
return None
|
|
|
|
def iterateHandleAncestors(self, typename):
|
|
"""Iterate through the ancestors of a handle type."""
|
|
current = self.getHandleParent(typename)
|
|
while current is not None:
|
|
yield current
|
|
current = self.getHandleParent(current)
|
|
|
|
def getHandleAncestors(self, typename):
|
|
"""Get the ancestors of a handle object."""
|
|
return list(self.iterateHandleAncestors(typename))
|
|
|
|
def getTypeCategory(self, typename):
|
|
"""Get the category of a type."""
|
|
if self.registry is None:
|
|
raise MissingRegistryError()
|
|
|
|
info = self.registry.typedict.get(typename)
|
|
if info is None:
|
|
return None
|
|
|
|
elem = info.elem
|
|
if elem is not None:
|
|
return elem.get('category')
|
|
return None
|
|
|
|
def isStructAlwaysValid(self, structname):
|
|
"""Try to do check if a structure is always considered valid (i.e. there is no rules to its acceptance)."""
|
|
# A conventions object is required for this call.
|
|
if not self.conventions:
|
|
raise RuntimeError("To use isStructAlwaysValid, be sure your options include a Conventions object.")
|
|
if self.registry is None:
|
|
raise MissingRegistryError()
|
|
|
|
if self.conventions.type_always_valid(structname):
|
|
return True
|
|
|
|
category = self.getTypeCategory(structname)
|
|
if self.conventions.category_requires_validation(category):
|
|
return False
|
|
|
|
info = self.registry.typedict.get(structname)
|
|
if info is None:
|
|
self.logMsg('error', f'isStructAlwaysValid({structname}) - structure not found in typedict')
|
|
|
|
members = info.getMembers()
|
|
|
|
for member in members:
|
|
member_name = getElemName(member)
|
|
if member_name in (self.conventions.structtype_member_name,
|
|
self.conventions.nextpointer_member_name):
|
|
return False
|
|
|
|
if member.get('noautovalidity'):
|
|
return False
|
|
|
|
member_type = getElemType(member)
|
|
|
|
if member_type in ('void', 'char') or self.paramIsArray(member) or self.paramIsPointer(member):
|
|
return False
|
|
|
|
if self.conventions.type_always_valid(member_type):
|
|
continue
|
|
|
|
member_category = self.getTypeCategory(member_type)
|
|
|
|
if self.conventions.category_requires_validation(member_category):
|
|
return False
|
|
|
|
if member_category in ('struct', 'union'):
|
|
if self.isStructAlwaysValid(member_type) is False:
|
|
return False
|
|
|
|
return True
|
|
|
|
def paramIsArray(self, param):
|
|
"""Check if the parameter passed in is a pointer to an array.
|
|
|
|
param the XML information for the param
|
|
"""
|
|
return param.get('len') is not None
|
|
|
|
def paramIsPointer(self, param):
|
|
"""Check if the parameter passed in is a pointer.
|
|
|
|
param the XML information for the param
|
|
"""
|
|
tail = param.find('type').tail
|
|
return tail is not None and '*' in tail
|
|
|
|
def isEnumRequired(self, elem):
|
|
"""Return True if this `<enum>` element is
|
|
required, False otherwise
|
|
|
|
- elem - `<enum>` element to test"""
|
|
required = elem.get('required') is not None
|
|
self.logMsg('diag', 'isEnumRequired:', elem.get('name'),
|
|
'->', required)
|
|
return required
|
|
|
|
# @@@ This code is overridden by equivalent code now run in
|
|
# @@@ Registry.generateFeature
|
|
|
|
required = False
|
|
|
|
extname = elem.get('extname')
|
|
if extname is not None:
|
|
# 'supported' attribute was injected when the <enum> element was
|
|
# moved into the <enums> group in Registry.parseTree()
|
|
if self.genOpts.defaultExtensions == elem.get('supported'):
|
|
required = True
|
|
elif re.match(self.genOpts.addExtensions, extname) is not None:
|
|
required = True
|
|
elif elem.get('version') is not None:
|
|
required = re.match(self.genOpts.emitversions, elem.get('version')) is not None
|
|
else:
|
|
required = True
|
|
|
|
return required
|
|
|
|
def makeCDecls(self, cmd):
|
|
"""Return C prototype and function pointer typedef for a
|
|
`<command>` Element, as a two-element list of strings.
|
|
|
|
- cmd - Element containing a `<command>` tag"""
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
proto = cmd.find('proto')
|
|
params = cmd.findall('param')
|
|
# Begin accumulating prototype and typedef strings
|
|
pdecl = self.genOpts.apicall
|
|
tdecl = 'typedef '
|
|
|
|
# Insert the function return type/name.
|
|
# For prototypes, add APIENTRY macro before the name
|
|
# For typedefs, add (APIENTRY *<name>) around the name and
|
|
# use the PFN_cmdnameproc naming convention.
|
|
# Done by walking the tree for <proto> element by element.
|
|
# etree has elem.text followed by (elem[i], elem[i].tail)
|
|
# for each child element and any following text
|
|
# Leading text
|
|
pdecl += noneStr(proto.text)
|
|
tdecl += noneStr(proto.text)
|
|
# For each child element, if it is a <name> wrap in appropriate
|
|
# declaration. Otherwise append its contents and tail contents.
|
|
for elem in proto:
|
|
text = noneStr(elem.text)
|
|
tail = noneStr(elem.tail)
|
|
if elem.tag == 'name':
|
|
pdecl += self.makeProtoName(text, tail)
|
|
tdecl += self.makeTypedefName(text, tail)
|
|
else:
|
|
pdecl += text + tail
|
|
tdecl += text + tail
|
|
|
|
if self.genOpts.alignFuncParam == 0:
|
|
# Squeeze out multiple spaces - there is no indentation
|
|
pdecl = ' '.join(pdecl.split())
|
|
tdecl = ' '.join(tdecl.split())
|
|
|
|
# Now add the parameter declaration list, which is identical
|
|
# for prototypes and typedefs. Concatenate all the text from
|
|
# a <param> node without the tags. No tree walking required
|
|
# since all tags are ignored.
|
|
# Uses: self.indentFuncProto
|
|
# self.indentFuncPointer
|
|
# self.alignFuncParam
|
|
n = len(params)
|
|
# Indented parameters
|
|
if n > 0:
|
|
indentdecl = '(\n'
|
|
indentdecl += ',\n'.join(self.makeCParamDecl(p, self.genOpts.alignFuncParam)
|
|
for p in params)
|
|
indentdecl += ');'
|
|
else:
|
|
indentdecl = '(void);'
|
|
# Non-indented parameters
|
|
paramdecl = '('
|
|
if n > 0:
|
|
paramnames = []
|
|
if self.misracppstyle():
|
|
for p in params:
|
|
param = ''
|
|
firstIter = True;
|
|
for t in p.itertext():
|
|
if (firstIter):
|
|
prefix = t
|
|
firstIter = False
|
|
else:
|
|
# Change pointer type order from e.g. "const void *" to "void const *".
|
|
# If the string starts with 'const', reorder it to be after the first type.
|
|
if (prefix.find('const ') != -1):
|
|
param += prefix.replace('const ', '') + t + ' const '
|
|
else:
|
|
param += prefix + t
|
|
# Clear prefix for subsequent iterations
|
|
prefix = ''
|
|
paramnames.append(param);
|
|
else:
|
|
paramnames = (''.join(t for t in p.itertext())
|
|
for p in params)
|
|
paramdecl += ', '.join(paramnames)
|
|
else:
|
|
paramdecl += 'void'
|
|
paramdecl += ");"
|
|
return [pdecl + indentdecl, tdecl + paramdecl]
|
|
|
|
def newline(self):
|
|
"""Print a newline to the output file (utility function)"""
|
|
write('', file=self.outFile)
|
|
|
|
def setRegistry(self, registry):
|
|
self.registry = registry
|