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c.py
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"""
sphinx.domains.c
~~~~~~~~~~~~~~~~
The C language domain.
:copyright: Copyright 2007-2021 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from typing import (Any, Callable, Dict, Generator, Iterator, List, Optional, Tuple, TypeVar,
Union, cast)
from docutils import nodes
from docutils.nodes import Element, Node, TextElement, system_message
from docutils.parsers.rst import directives
from sphinx import addnodes
from sphinx.addnodes import pending_xref
from sphinx.application import Sphinx
from sphinx.builders import Builder
from sphinx.deprecation import RemovedInSphinx50Warning
from sphinx.directives import ObjectDescription
from sphinx.domains import Domain, ObjType
from sphinx.environment import BuildEnvironment
from sphinx.locale import _, __
from sphinx.roles import SphinxRole, XRefRole
from sphinx.transforms import SphinxTransform
from sphinx.transforms.post_transforms import ReferencesResolver
from sphinx.util import logging
from sphinx.util.cfamily import (ASTAttribute, ASTBaseBase, ASTBaseParenExprList, BaseParser,
DefinitionError, NoOldIdError, StringifyTransform,
UnsupportedMultiCharacterCharLiteral, anon_identifier_re,
binary_literal_re, char_literal_re, float_literal_re,
float_literal_suffix_re, hex_literal_re, identifier_re,
integer_literal_re, integers_literal_suffix_re,
octal_literal_re, verify_description_mode)
from sphinx.util.docfields import Field, GroupedField, TypedField
from sphinx.util.docutils import SphinxDirective
from sphinx.util.nodes import make_refnode
from sphinx.util.typing import OptionSpec
logger = logging.getLogger(__name__)
T = TypeVar('T')
DeclarationType = Union[
"ASTStruct", "ASTUnion", "ASTEnum", "ASTEnumerator",
"ASTType", "ASTTypeWithInit", "ASTMacro",
]
# https://en.cppreference.com/w/c/keyword
_keywords = [
'auto', 'break', 'case', 'char', 'const', 'continue', 'default', 'do', 'double',
'else', 'enum', 'extern', 'float', 'for', 'goto', 'if', 'inline', 'int', 'long',
'register', 'restrict', 'return', 'short', 'signed', 'sizeof', 'static', 'struct',
'switch', 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while',
'_Alignas', '_Alignof', '_Atomic', '_Bool', '_Complex',
'_Decimal32', '_Decimal64', '_Decimal128',
'_Generic', '_Imaginary', '_Noreturn', '_Static_assert', '_Thread_local',
]
# These are only keyword'y when the corresponding headers are included.
# They are used as default value for c_extra_keywords.
_macroKeywords = [
'alignas', 'alignof', 'bool', 'complex', 'imaginary', 'noreturn', 'static_assert',
'thread_local',
]
# these are ordered by preceedence
_expression_bin_ops = [
['||', 'or'],
['&&', 'and'],
['|', 'bitor'],
['^', 'xor'],
['&', 'bitand'],
['==', '!=', 'not_eq'],
['<=', '>=', '<', '>'],
['<<', '>>'],
['+', '-'],
['*', '/', '%'],
['.*', '->*']
]
_expression_unary_ops = ["++", "--", "*", "&", "+", "-", "!", "not", "~", "compl"]
_expression_assignment_ops = ["=", "*=", "/=", "%=", "+=", "-=",
">>=", "<<=", "&=", "and_eq", "^=", "xor_eq", "|=", "or_eq"]
_max_id = 1
_id_prefix = [None, 'c.', 'Cv2.']
# Ids are used in lookup keys which are used across pickled files,
# so when _max_id changes, make sure to update the ENV_VERSION.
_string_re = re.compile(r"[LuU8]?('([^'\\]*(?:\\.[^'\\]*)*)'"
r'|"([^"\\]*(?:\\.[^"\\]*)*)")', re.S)
# bool, complex, and imaginary are macro "keywords", so they are handled seperately
_simple_type_specifiers_re = re.compile(r"""(?x)
\b(
void|_Bool
|signed|unsigned
|short|long
|char
|int
|__uint128|__int128
|__int(8|16|32|64|128) # extension
|float|double
|_Decimal(32|64|128)
|_Complex|_Imaginary
|__float80|_Float64x|__float128|_Float128|__ibm128 # extension
|__fp16 # extension
|_Sat|_Fract|fract|_Accum|accum # extension
)\b
""")
class _DuplicateSymbolError(Exception):
def __init__(self, symbol: "Symbol", declaration: "ASTDeclaration") -> None:
assert symbol
assert declaration
self.symbol = symbol
self.declaration = declaration
def __str__(self) -> str:
return "Internal C duplicate symbol error:\n%s" % self.symbol.dump(0)
class ASTBase(ASTBaseBase):
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
raise NotImplementedError(repr(self))
# Names
################################################################################
class ASTIdentifier(ASTBaseBase):
def __init__(self, identifier: str) -> None:
assert identifier is not None
assert len(identifier) != 0
self.identifier = identifier
def __eq__(self, other: Any) -> bool:
return type(other) is ASTIdentifier and self.identifier == other.identifier
def is_anon(self) -> bool:
return self.identifier[0] == '@'
# and this is where we finally make a difference between __str__ and the display string
def __str__(self) -> str:
return self.identifier
def get_display_string(self) -> str:
return "[anonymous]" if self.is_anon() else self.identifier
def describe_signature(self, signode: TextElement, mode: str, env: "BuildEnvironment",
prefix: str, symbol: "Symbol") -> None:
# note: slightly different signature of describe_signature due to the prefix
verify_description_mode(mode)
if self.is_anon():
node = addnodes.desc_sig_name(text="[anonymous]")
else:
node = addnodes.desc_sig_name(self.identifier, self.identifier)
if mode == 'markType':
targetText = prefix + self.identifier
pnode = addnodes.pending_xref('', refdomain='c',
reftype='identifier',
reftarget=targetText, modname=None,
classname=None)
pnode['c:parent_key'] = symbol.get_lookup_key()
pnode += node
signode += pnode
elif mode == 'lastIsName':
nameNode = addnodes.desc_name()
nameNode += node
signode += nameNode
elif mode == 'noneIsName':
signode += node
else:
raise Exception('Unknown description mode: %s' % mode)
class ASTNestedName(ASTBase):
def __init__(self, names: List[ASTIdentifier], rooted: bool) -> None:
assert len(names) > 0
self.names = names
self.rooted = rooted
@property
def name(self) -> "ASTNestedName":
return self
def get_id(self, version: int) -> str:
return '.'.join(str(n) for n in self.names)
def _stringify(self, transform: StringifyTransform) -> str:
res = '.'.join(transform(n) for n in self.names)
if self.rooted:
return '.' + res
else:
return res
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
verify_description_mode(mode)
# just print the name part, with template args, not template params
if mode == 'noneIsName':
if self.rooted:
assert False, "Can this happen?" # TODO
signode += nodes.Text('.')
for i in range(len(self.names)):
if i != 0:
assert False, "Can this happen?" # TODO
signode += nodes.Text('.')
n = self.names[i]
n.describe_signature(signode, mode, env, '', symbol)
elif mode == 'param':
assert not self.rooted, str(self)
assert len(self.names) == 1
self.names[0].describe_signature(signode, 'noneIsName', env, '', symbol)
elif mode == 'markType' or mode == 'lastIsName' or mode == 'markName':
# Each element should be a pending xref targeting the complete
# prefix.
prefix = ''
first = True
names = self.names[:-1] if mode == 'lastIsName' else self.names
# If lastIsName, then wrap all of the prefix in a desc_addname,
# else append directly to signode.
# TODO: also for C?
# NOTE: Breathe previously relied on the prefix being in the desc_addname node,
# so it can remove it in inner declarations.
dest = signode
if mode == 'lastIsName':
dest = addnodes.desc_addname()
if self.rooted:
prefix += '.'
if mode == 'lastIsName' and len(names) == 0:
signode += addnodes.desc_sig_punctuation('.', '.')
else:
dest += addnodes.desc_sig_punctuation('.', '.')
for i in range(len(names)):
ident = names[i]
if not first:
dest += addnodes.desc_sig_punctuation('.', '.')
prefix += '.'
first = False
txt_ident = str(ident)
if txt_ident != '':
ident.describe_signature(dest, 'markType', env, prefix, symbol)
prefix += txt_ident
if mode == 'lastIsName':
if len(self.names) > 1:
dest += addnodes.desc_sig_punctuation('.', '.')
signode += dest
self.names[-1].describe_signature(signode, mode, env, '', symbol)
else:
raise Exception('Unknown description mode: %s' % mode)
################################################################################
# Expressions
################################################################################
class ASTExpression(ASTBase):
pass
# Primary expressions
################################################################################
class ASTLiteral(ASTExpression):
pass
class ASTBooleanLiteral(ASTLiteral):
def __init__(self, value: bool) -> None:
self.value = value
def _stringify(self, transform: StringifyTransform) -> str:
if self.value:
return 'true'
else:
return 'false'
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
txt = str(self)
signode += addnodes.desc_sig_keyword(txt, txt)
class ASTNumberLiteral(ASTLiteral):
def __init__(self, data: str) -> None:
self.data = data
def _stringify(self, transform: StringifyTransform) -> str:
return self.data
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
txt = str(self)
signode += addnodes.desc_sig_literal_number(txt, txt)
class ASTCharLiteral(ASTLiteral):
def __init__(self, prefix: str, data: str) -> None:
self.prefix = prefix # may be None when no prefix
self.data = data
decoded = data.encode().decode('unicode-escape')
if len(decoded) == 1:
self.value = ord(decoded)
else:
raise UnsupportedMultiCharacterCharLiteral(decoded)
def _stringify(self, transform: StringifyTransform) -> str:
if self.prefix is None:
return "'" + self.data + "'"
else:
return self.prefix + "'" + self.data + "'"
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
txt = str(self)
signode += addnodes.desc_sig_literal_char(txt, txt)
class ASTStringLiteral(ASTLiteral):
def __init__(self, data: str) -> None:
self.data = data
def _stringify(self, transform: StringifyTransform) -> str:
return self.data
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
txt = str(self)
signode += addnodes.desc_sig_literal_string(txt, txt)
class ASTIdExpression(ASTExpression):
def __init__(self, name: ASTNestedName):
# note: this class is basically to cast a nested name as an expression
self.name = name
def _stringify(self, transform: StringifyTransform) -> str:
return transform(self.name)
def get_id(self, version: int) -> str:
return self.name.get_id(version)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
self.name.describe_signature(signode, mode, env, symbol)
class ASTParenExpr(ASTExpression):
def __init__(self, expr):
self.expr = expr
def _stringify(self, transform: StringifyTransform) -> str:
return '(' + transform(self.expr) + ')'
def get_id(self, version: int) -> str:
return self.expr.get_id(version)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_punctuation('(', '(')
self.expr.describe_signature(signode, mode, env, symbol)
signode += addnodes.desc_sig_punctuation(')', ')')
# Postfix expressions
################################################################################
class ASTPostfixOp(ASTBase):
pass
class ASTPostfixCallExpr(ASTPostfixOp):
def __init__(self, lst: Union["ASTParenExprList", "ASTBracedInitList"]) -> None:
self.lst = lst
def _stringify(self, transform: StringifyTransform) -> str:
return transform(self.lst)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
self.lst.describe_signature(signode, mode, env, symbol)
class ASTPostfixArray(ASTPostfixOp):
def __init__(self, expr: ASTExpression) -> None:
self.expr = expr
def _stringify(self, transform: StringifyTransform) -> str:
return '[' + transform(self.expr) + ']'
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_punctuation('[', '[')
self.expr.describe_signature(signode, mode, env, symbol)
signode += addnodes.desc_sig_punctuation(']', ']')
class ASTPostfixInc(ASTPostfixOp):
def _stringify(self, transform: StringifyTransform) -> str:
return '++'
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_operator('++', '++')
class ASTPostfixDec(ASTPostfixOp):
def _stringify(self, transform: StringifyTransform) -> str:
return '--'
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_operator('--', '--')
class ASTPostfixMemberOfPointer(ASTPostfixOp):
def __init__(self, name):
self.name = name
def _stringify(self, transform: StringifyTransform) -> str:
return '->' + transform(self.name)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_operator('->', '->')
self.name.describe_signature(signode, 'noneIsName', env, symbol)
class ASTPostfixExpr(ASTExpression):
def __init__(self, prefix: ASTExpression, postFixes: List[ASTPostfixOp]):
self.prefix = prefix
self.postFixes = postFixes
def _stringify(self, transform: StringifyTransform) -> str:
res = [transform(self.prefix)]
for p in self.postFixes:
res.append(transform(p))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
self.prefix.describe_signature(signode, mode, env, symbol)
for p in self.postFixes:
p.describe_signature(signode, mode, env, symbol)
# Unary expressions
################################################################################
class ASTUnaryOpExpr(ASTExpression):
def __init__(self, op: str, expr: ASTExpression):
self.op = op
self.expr = expr
def _stringify(self, transform: StringifyTransform) -> str:
if self.op[0] in 'cn':
return self.op + " " + transform(self.expr)
else:
return self.op + transform(self.expr)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
if self.op[0] in 'cn':
signode += addnodes.desc_sig_keyword(self.op, self.op)
signode += addnodes.desc_sig_space()
else:
signode += addnodes.desc_sig_operator(self.op, self.op)
self.expr.describe_signature(signode, mode, env, symbol)
class ASTSizeofType(ASTExpression):
def __init__(self, typ):
self.typ = typ
def _stringify(self, transform: StringifyTransform) -> str:
return "sizeof(" + transform(self.typ) + ")"
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_keyword('sizeof', 'sizeof')
signode += addnodes.desc_sig_punctuation('(', '(')
self.typ.describe_signature(signode, mode, env, symbol)
signode += addnodes.desc_sig_punctuation(')', ')')
class ASTSizeofExpr(ASTExpression):
def __init__(self, expr: ASTExpression):
self.expr = expr
def _stringify(self, transform: StringifyTransform) -> str:
return "sizeof " + transform(self.expr)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_keyword('sizeof', 'sizeof')
signode += addnodes.desc_sig_space()
self.expr.describe_signature(signode, mode, env, symbol)
class ASTAlignofExpr(ASTExpression):
def __init__(self, typ: "ASTType"):
self.typ = typ
def _stringify(self, transform: StringifyTransform) -> str:
return "alignof(" + transform(self.typ) + ")"
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_keyword('alignof', 'alignof')
signode += addnodes.desc_sig_punctuation('(', '(')
self.typ.describe_signature(signode, mode, env, symbol)
signode += addnodes.desc_sig_punctuation(')', ')')
# Other expressions
################################################################################
class ASTCastExpr(ASTExpression):
def __init__(self, typ: "ASTType", expr: ASTExpression):
self.typ = typ
self.expr = expr
def _stringify(self, transform: StringifyTransform) -> str:
res = ['(']
res.append(transform(self.typ))
res.append(')')
res.append(transform(self.expr))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += addnodes.desc_sig_punctuation('(', '(')
self.typ.describe_signature(signode, mode, env, symbol)
signode += addnodes.desc_sig_punctuation(')', ')')
self.expr.describe_signature(signode, mode, env, symbol)
class ASTBinOpExpr(ASTBase):
def __init__(self, exprs: List[ASTExpression], ops: List[str]):
assert len(exprs) > 0
assert len(exprs) == len(ops) + 1
self.exprs = exprs
self.ops = ops
def _stringify(self, transform: StringifyTransform) -> str:
res = []
res.append(transform(self.exprs[0]))
for i in range(1, len(self.exprs)):
res.append(' ')
res.append(self.ops[i - 1])
res.append(' ')
res.append(transform(self.exprs[i]))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
self.exprs[0].describe_signature(signode, mode, env, symbol)
for i in range(1, len(self.exprs)):
signode += addnodes.desc_sig_space()
op = self.ops[i - 1]
if ord(op[0]) >= ord('a') and ord(op[0]) <= ord('z'):
signode += addnodes.desc_sig_keyword(op, op)
else:
signode += addnodes.desc_sig_operator(op, op)
signode += addnodes.desc_sig_space()
self.exprs[i].describe_signature(signode, mode, env, symbol)
class ASTAssignmentExpr(ASTExpression):
def __init__(self, exprs: List[ASTExpression], ops: List[str]):
assert len(exprs) > 0
assert len(exprs) == len(ops) + 1
self.exprs = exprs
self.ops = ops
def _stringify(self, transform: StringifyTransform) -> str:
res = []
res.append(transform(self.exprs[0]))
for i in range(1, len(self.exprs)):
res.append(' ')
res.append(self.ops[i - 1])
res.append(' ')
res.append(transform(self.exprs[i]))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
self.exprs[0].describe_signature(signode, mode, env, symbol)
for i in range(1, len(self.exprs)):
signode += addnodes.desc_sig_space()
op = self.ops[i - 1]
if ord(op[0]) >= ord('a') and ord(op[0]) <= ord('z'):
signode += addnodes.desc_sig_keyword(op, op)
else:
signode += addnodes.desc_sig_operator(op, op)
signode += addnodes.desc_sig_space()
self.exprs[i].describe_signature(signode, mode, env, symbol)
class ASTFallbackExpr(ASTExpression):
def __init__(self, expr: str):
self.expr = expr
def _stringify(self, transform: StringifyTransform) -> str:
return self.expr
def get_id(self, version: int) -> str:
return str(self.expr)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
signode += nodes.literal(self.expr, self.expr)
################################################################################
# Types
################################################################################
class ASTTrailingTypeSpec(ASTBase):
pass
class ASTTrailingTypeSpecFundamental(ASTTrailingTypeSpec):
def __init__(self, names: List[str]) -> None:
assert len(names) != 0
self.names = names
def _stringify(self, transform: StringifyTransform) -> str:
return ' '.join(self.names)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
first = True
for n in self.names:
if not first:
signode += addnodes.desc_sig_space()
else:
first = False
signode += addnodes.desc_sig_keyword_type(n, n)
class ASTTrailingTypeSpecName(ASTTrailingTypeSpec):
def __init__(self, prefix: str, nestedName: ASTNestedName) -> None:
self.prefix = prefix
self.nestedName = nestedName
@property
def name(self) -> ASTNestedName:
return self.nestedName
def _stringify(self, transform: StringifyTransform) -> str:
res = []
if self.prefix:
res.append(self.prefix)
res.append(' ')
res.append(transform(self.nestedName))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
if self.prefix:
signode += addnodes.desc_sig_keyword(self.prefix, self.prefix)
signode += addnodes.desc_sig_space()
self.nestedName.describe_signature(signode, mode, env, symbol=symbol)
class ASTFunctionParameter(ASTBase):
def __init__(self, arg: "ASTTypeWithInit", ellipsis: bool = False) -> None:
self.arg = arg
self.ellipsis = ellipsis
def get_id(self, version: int, objectType: str, symbol: "Symbol") -> str:
# the anchor will be our parent
return symbol.parent.declaration.get_id(version, prefixed=False)
def _stringify(self, transform: StringifyTransform) -> str:
if self.ellipsis:
return '...'
else:
return transform(self.arg)
def describe_signature(self, signode: Any, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
verify_description_mode(mode)
if self.ellipsis:
signode += addnodes.desc_sig_punctuation('...', '...')
else:
self.arg.describe_signature(signode, mode, env, symbol=symbol)
class ASTParameters(ASTBase):
def __init__(self, args: List[ASTFunctionParameter], attrs: List[ASTAttribute]) -> None:
self.args = args
self.attrs = attrs
@property
def function_params(self) -> List[ASTFunctionParameter]:
return self.args
def _stringify(self, transform: StringifyTransform) -> str:
res = []
res.append('(')
first = True
for a in self.args:
if not first:
res.append(', ')
first = False
res.append(str(a))
res.append(')')
for attr in self.attrs:
res.append(' ')
res.append(transform(attr))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
verify_description_mode(mode)
# only use the desc_parameterlist for the outer list, not for inner lists
if mode == 'lastIsName':
paramlist = addnodes.desc_parameterlist()
for arg in self.args:
param = addnodes.desc_parameter('', '', noemph=True)
arg.describe_signature(param, 'param', env, symbol=symbol)
paramlist += param
signode += paramlist
else:
signode += addnodes.desc_sig_punctuation('(', '(')
first = True
for arg in self.args:
if not first:
signode += addnodes.desc_sig_punctuation(',', ',')
signode += addnodes.desc_sig_space()
first = False
arg.describe_signature(signode, 'markType', env, symbol=symbol)
signode += addnodes.desc_sig_punctuation(')', ')')
for attr in self.attrs:
signode += addnodes.desc_sig_space()
attr.describe_signature(signode)
class ASTDeclSpecsSimple(ASTBaseBase):
def __init__(self, storage: str, threadLocal: str, inline: bool,
restrict: bool, volatile: bool, const: bool, attrs: List[Any]) -> None:
self.storage = storage
self.threadLocal = threadLocal
self.inline = inline
self.restrict = restrict
self.volatile = volatile
self.const = const
self.attrs = attrs
def mergeWith(self, other: "ASTDeclSpecsSimple") -> "ASTDeclSpecsSimple":
if not other:
return self
return ASTDeclSpecsSimple(self.storage or other.storage,
self.threadLocal or other.threadLocal,
self.inline or other.inline,
self.volatile or other.volatile,
self.const or other.const,
self.restrict or other.restrict,
self.attrs + other.attrs)
def _stringify(self, transform: StringifyTransform) -> str:
res: List[str] = []
res.extend(transform(attr) for attr in self.attrs)
if self.storage:
res.append(self.storage)
if self.threadLocal:
res.append(self.threadLocal)
if self.inline:
res.append('inline')
if self.restrict:
res.append('restrict')
if self.volatile:
res.append('volatile')
if self.const:
res.append('const')
return ' '.join(res)
def describe_signature(self, modifiers: List[Node]) -> None:
def _add(modifiers: List[Node], text: str) -> None:
if len(modifiers) > 0:
modifiers.append(addnodes.desc_sig_space())
modifiers.append(addnodes.desc_sig_keyword(text, text))
for attr in self.attrs:
if len(modifiers) > 0:
modifiers.append(addnodes.desc_sig_space())
modifiers.append(attr.describe_signature(modifiers))
if self.storage:
_add(modifiers, self.storage)
if self.threadLocal:
_add(modifiers, self.threadLocal)
if self.inline:
_add(modifiers, 'inline')
if self.restrict:
_add(modifiers, 'restrict')
if self.volatile:
_add(modifiers, 'volatile')
if self.const:
_add(modifiers, 'const')
class ASTDeclSpecs(ASTBase):
def __init__(self, outer: str,
leftSpecs: ASTDeclSpecsSimple,
rightSpecs: ASTDeclSpecsSimple,
trailing: ASTTrailingTypeSpec) -> None:
# leftSpecs and rightSpecs are used for output
# allSpecs are used for id generation TODO: remove?
self.outer = outer
self.leftSpecs = leftSpecs
self.rightSpecs = rightSpecs
self.allSpecs = self.leftSpecs.mergeWith(self.rightSpecs)
self.trailingTypeSpec = trailing
def _stringify(self, transform: StringifyTransform) -> str:
res: List[str] = []
l = transform(self.leftSpecs)
if len(l) > 0:
res.append(l)
if self.trailingTypeSpec:
if len(res) > 0:
res.append(" ")
res.append(transform(self.trailingTypeSpec))
r = str(self.rightSpecs)
if len(r) > 0:
if len(res) > 0:
res.append(" ")
res.append(r)
return "".join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
verify_description_mode(mode)
modifiers: List[Node] = []
self.leftSpecs.describe_signature(modifiers)
for m in modifiers:
signode += m
if self.trailingTypeSpec:
if len(modifiers) > 0:
signode += addnodes.desc_sig_space()
self.trailingTypeSpec.describe_signature(signode, mode, env,
symbol=symbol)
modifiers = []
self.rightSpecs.describe_signature(modifiers)
if len(modifiers) > 0:
signode += addnodes.desc_sig_space()
for m in modifiers:
signode += m
# Declarator
################################################################################
class ASTArray(ASTBase):
def __init__(self, static: bool, const: bool, volatile: bool, restrict: bool,
vla: bool, size: ASTExpression):
self.static = static
self.const = const
self.volatile = volatile
self.restrict = restrict
self.vla = vla
self.size = size
if vla:
assert size is None
if size is not None:
assert not vla
def _stringify(self, transform: StringifyTransform) -> str:
el = []
if self.static:
el.append('static')
if self.restrict:
el.append('restrict')
if self.volatile:
el.append('volatile')
if self.const:
el.append('const')
if self.vla:
return '[' + ' '.join(el) + '*]'
elif self.size:
el.append(transform(self.size))
return '[' + ' '.join(el) + ']'
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
verify_description_mode(mode)
signode += addnodes.desc_sig_punctuation('[', '[')
addSpace = False
def _add(signode: TextElement, text: str) -> bool:
if addSpace:
signode += addnodes.desc_sig_space()
signode += addnodes.desc_sig_keyword(text, text)
return True
if self.static:
addSpace = _add(signode, 'static')
if self.restrict:
addSpace = _add(signode, 'restrict')
if self.volatile:
addSpace = _add(signode, 'volatile')
if self.const:
addSpace = _add(signode, 'const')
if self.vla:
signode += addnodes.desc_sig_punctuation('*', '*')
elif self.size:
if addSpace:
signode += addnodes.desc_sig_space()
self.size.describe_signature(signode, 'markType', env, symbol)
signode += addnodes.desc_sig_punctuation(']', ']')
class ASTDeclarator(ASTBase):
@property
def name(self) -> ASTNestedName:
raise NotImplementedError(repr(self))
@property
def function_params(self) -> List[ASTFunctionParameter]:
raise NotImplementedError(repr(self))
def require_space_after_declSpecs(self) -> bool:
raise NotImplementedError(repr(self))
class ASTDeclaratorNameParam(ASTDeclarator):
def __init__(self, declId: ASTNestedName,
arrayOps: List[ASTArray], param: ASTParameters) -> None:
self.declId = declId
self.arrayOps = arrayOps
self.param = param
@property
def name(self) -> ASTNestedName:
return self.declId
@property
def function_params(self) -> List[ASTFunctionParameter]:
return self.param.function_params
# ------------------------------------------------------------------------
def require_space_after_declSpecs(self) -> bool:
return self.declId is not None
def _stringify(self, transform: StringifyTransform) -> str:
res = []
if self.declId:
res.append(transform(self.declId))
for op in self.arrayOps:
res.append(transform(op))
if self.param:
res.append(transform(self.param))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,
env: "BuildEnvironment", symbol: "Symbol") -> None:
verify_description_mode(mode)
if self.declId:
self.declId.describe_signature(signode, mode, env, symbol)
for op in self.arrayOps:
op.describe_signature(signode, mode, env, symbol)
if self.param:
self.param.describe_signature(signode, mode, env, symbol)
class ASTDeclaratorNameBitField(ASTDeclarator):
def __init__(self, declId: ASTNestedName, size: ASTExpression):
self.declId = declId
self.size = size
@property
def name(self) -> ASTNestedName:
return self.declId
# ------------------------------------------------------------------------
def require_space_after_declSpecs(self) -> bool:
return self.declId is not None
def _stringify(self, transform: StringifyTransform) -> str:
res = []
if self.declId:
res.append(transform(self.declId))
res.append(" : ")
res.append(transform(self.size))
return ''.join(res)
def describe_signature(self, signode: TextElement, mode: str,