3907 lines
149 KiB
Python
3907 lines
149 KiB
Python
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"""The C language domain."""
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from __future__ import annotations
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import re
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from typing import TYPE_CHECKING, Any, Callable, TypeVar, Union, cast
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from docutils import nodes
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from docutils.parsers.rst import directives
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from sphinx import addnodes
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from sphinx.directives import ObjectDescription
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from sphinx.domains import Domain, ObjType
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from sphinx.locale import _, __
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from sphinx.roles import SphinxRole, XRefRole
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from sphinx.transforms import SphinxTransform
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from sphinx.transforms.post_transforms import ReferencesResolver
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from sphinx.util import logging
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from sphinx.util.cfamily import (
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ASTAttributeList,
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ASTBaseBase,
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ASTBaseParenExprList,
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BaseParser,
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DefinitionError,
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NoOldIdError,
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StringifyTransform,
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UnsupportedMultiCharacterCharLiteral,
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anon_identifier_re,
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binary_literal_re,
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char_literal_re,
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float_literal_re,
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float_literal_suffix_re,
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hex_literal_re,
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identifier_re,
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integer_literal_re,
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integers_literal_suffix_re,
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octal_literal_re,
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verify_description_mode,
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)
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from sphinx.util.docfields import Field, GroupedField, TypedField
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from sphinx.util.docutils import SphinxDirective
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from sphinx.util.nodes import make_refnode
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if TYPE_CHECKING:
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from collections.abc import Generator, Iterator
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from docutils.nodes import Element, Node, TextElement, system_message
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from sphinx.addnodes import pending_xref
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from sphinx.application import Sphinx
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from sphinx.builders import Builder
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from sphinx.environment import BuildEnvironment
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from sphinx.util.typing import OptionSpec
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logger = logging.getLogger(__name__)
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T = TypeVar('T')
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DeclarationType = Union[
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"ASTStruct", "ASTUnion", "ASTEnum", "ASTEnumerator",
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"ASTType", "ASTTypeWithInit", "ASTMacro",
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]
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# https://en.cppreference.com/w/c/keyword
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_keywords = [
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'auto', 'break', 'case', 'char', 'const', 'continue', 'default', 'do', 'double',
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'else', 'enum', 'extern', 'float', 'for', 'goto', 'if', 'inline', 'int', 'long',
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'register', 'restrict', 'return', 'short', 'signed', 'sizeof', 'static', 'struct',
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'switch', 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while',
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'_Alignas', '_Alignof', '_Atomic', '_Bool', '_Complex',
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'_Decimal32', '_Decimal64', '_Decimal128',
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'_Generic', '_Imaginary', '_Noreturn', '_Static_assert', '_Thread_local',
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]
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# These are only keyword'y when the corresponding headers are included.
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# They are used as default value for c_extra_keywords.
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_macroKeywords = [
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'alignas', 'alignof', 'bool', 'complex', 'imaginary', 'noreturn', 'static_assert',
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'thread_local',
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]
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# these are ordered by precedence
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_expression_bin_ops = [
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['||', 'or'],
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['&&', 'and'],
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['|', 'bitor'],
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['^', 'xor'],
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['&', 'bitand'],
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['==', '!=', 'not_eq'],
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['<=', '>=', '<', '>'],
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['<<', '>>'],
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['+', '-'],
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['*', '/', '%'],
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['.*', '->*'],
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]
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_expression_unary_ops = ["++", "--", "*", "&", "+", "-", "!", "not", "~", "compl"]
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_expression_assignment_ops = ["=", "*=", "/=", "%=", "+=", "-=",
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">>=", "<<=", "&=", "and_eq", "^=", "xor_eq", "|=", "or_eq"]
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_max_id = 1
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_id_prefix = [None, 'c.', 'Cv2.']
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# Ids are used in lookup keys which are used across pickled files,
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# so when _max_id changes, make sure to update the ENV_VERSION.
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_string_re = re.compile(r"[LuU8]?('([^'\\]*(?:\\.[^'\\]*)*)'"
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r'|"([^"\\]*(?:\\.[^"\\]*)*)")', re.S)
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# bool, complex, and imaginary are macro "keywords", so they are handled separately
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_simple_type_specifiers_re = re.compile(r"""
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\b(
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void|_Bool
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|signed|unsigned
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|short|long
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|char
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|int
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|__uint128|__int128
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|__int(8|16|32|64|128) # extension
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|float|double
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|_Decimal(32|64|128)
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|_Complex|_Imaginary
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|__float80|_Float64x|__float128|_Float128|__ibm128 # extension
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|__fp16 # extension
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|_Sat|_Fract|fract|_Accum|accum # extension
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)\b
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""", re.VERBOSE)
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class _DuplicateSymbolError(Exception):
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def __init__(self, symbol: Symbol, declaration: ASTDeclaration) -> None:
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assert symbol
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assert declaration
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self.symbol = symbol
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self.declaration = declaration
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def __str__(self) -> str:
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return "Internal C duplicate symbol error:\n%s" % self.symbol.dump(0)
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class ASTBase(ASTBaseBase):
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def describe_signature(self, signode: TextElement, mode: str,
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env: BuildEnvironment, symbol: Symbol) -> None:
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raise NotImplementedError(repr(self))
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# Names
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################################################################################
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class ASTIdentifier(ASTBaseBase):
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def __init__(self, identifier: str) -> None:
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assert identifier is not None
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assert len(identifier) != 0
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self.identifier = identifier
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def __eq__(self, other: Any) -> bool:
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return type(other) is ASTIdentifier and self.identifier == other.identifier
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def is_anon(self) -> bool:
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return self.identifier[0] == '@'
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# and this is where we finally make a difference between __str__ and the display string
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def __str__(self) -> str:
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return self.identifier
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def get_display_string(self) -> str:
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return "[anonymous]" if self.is_anon() else self.identifier
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def describe_signature(self, signode: TextElement, mode: str, env: BuildEnvironment,
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prefix: str, symbol: Symbol) -> None:
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# note: slightly different signature of describe_signature due to the prefix
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verify_description_mode(mode)
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if self.is_anon():
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node = addnodes.desc_sig_name(text="[anonymous]")
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else:
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node = addnodes.desc_sig_name(self.identifier, self.identifier)
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if mode == 'markType':
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targetText = prefix + self.identifier
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pnode = addnodes.pending_xref('', refdomain='c',
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reftype='identifier',
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reftarget=targetText, modname=None,
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classname=None)
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pnode['c:parent_key'] = symbol.get_lookup_key()
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pnode += node
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signode += pnode
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elif mode == 'lastIsName':
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nameNode = addnodes.desc_name()
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nameNode += node
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signode += nameNode
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elif mode == 'noneIsName':
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signode += node
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else:
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raise Exception('Unknown description mode: %s' % mode)
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class ASTNestedName(ASTBase):
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def __init__(self, names: list[ASTIdentifier], rooted: bool) -> None:
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assert len(names) > 0
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self.names = names
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self.rooted = rooted
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@property
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def name(self) -> ASTNestedName:
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return self
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def get_id(self, version: int) -> str:
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return '.'.join(str(n) for n in self.names)
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def _stringify(self, transform: StringifyTransform) -> str:
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res = '.'.join(transform(n) for n in self.names)
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if self.rooted:
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return '.' + res
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else:
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return res
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def describe_signature(self, signode: TextElement, mode: str,
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env: BuildEnvironment, symbol: Symbol) -> None:
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verify_description_mode(mode)
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# just print the name part, with template args, not template params
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if mode == 'noneIsName':
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if self.rooted:
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unreachable = "Can this happen?"
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raise AssertionError(unreachable) # TODO
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signode += nodes.Text('.')
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for i in range(len(self.names)):
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if i != 0:
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unreachable = "Can this happen?"
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raise AssertionError(unreachable) # TODO
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signode += nodes.Text('.')
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n = self.names[i]
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n.describe_signature(signode, mode, env, '', symbol)
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elif mode == 'param':
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assert not self.rooted, str(self)
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assert len(self.names) == 1
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self.names[0].describe_signature(signode, 'noneIsName', env, '', symbol)
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elif mode in ('markType', 'lastIsName', 'markName'):
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# Each element should be a pending xref targeting the complete
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# prefix.
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prefix = ''
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first = True
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names = self.names[:-1] if mode == 'lastIsName' else self.names
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# If lastIsName, then wrap all of the prefix in a desc_addname,
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# else append directly to signode.
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# TODO: also for C?
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# NOTE: Breathe previously relied on the prefix being in the desc_addname node,
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# so it can remove it in inner declarations.
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dest = signode
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if mode == 'lastIsName':
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dest = addnodes.desc_addname()
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if self.rooted:
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prefix += '.'
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if mode == 'lastIsName' and len(names) == 0:
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signode += addnodes.desc_sig_punctuation('.', '.')
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else:
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dest += addnodes.desc_sig_punctuation('.', '.')
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for i in range(len(names)):
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ident = names[i]
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if not first:
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dest += addnodes.desc_sig_punctuation('.', '.')
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prefix += '.'
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first = False
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txt_ident = str(ident)
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if txt_ident != '':
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ident.describe_signature(dest, 'markType', env, prefix, symbol)
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prefix += txt_ident
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if mode == 'lastIsName':
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if len(self.names) > 1:
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dest += addnodes.desc_sig_punctuation('.', '.')
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signode += dest
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self.names[-1].describe_signature(signode, mode, env, '', symbol)
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else:
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raise Exception('Unknown description mode: %s' % mode)
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################################################################################
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# Expressions
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################################################################################
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class ASTExpression(ASTBase):
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pass
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# Primary expressions
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################################################################################
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class ASTLiteral(ASTExpression):
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pass
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class ASTBooleanLiteral(ASTLiteral):
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def __init__(self, value: bool) -> None:
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self.value = value
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def _stringify(self, transform: StringifyTransform) -> str:
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if self.value:
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return 'true'
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else:
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return 'false'
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def describe_signature(self, signode: TextElement, mode: str,
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env: BuildEnvironment, symbol: Symbol) -> None:
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txt = str(self)
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signode += addnodes.desc_sig_keyword(txt, txt)
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class ASTNumberLiteral(ASTLiteral):
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def __init__(self, data: str) -> None:
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self.data = data
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def _stringify(self, transform: StringifyTransform) -> str:
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return self.data
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def describe_signature(self, signode: TextElement, mode: str,
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env: BuildEnvironment, symbol: Symbol) -> None:
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txt = str(self)
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signode += addnodes.desc_sig_literal_number(txt, txt)
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class ASTCharLiteral(ASTLiteral):
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def __init__(self, prefix: str, data: str) -> None:
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self.prefix = prefix # may be None when no prefix
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self.data = data
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decoded = data.encode().decode('unicode-escape')
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if len(decoded) == 1:
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self.value = ord(decoded)
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else:
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raise UnsupportedMultiCharacterCharLiteral(decoded)
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def _stringify(self, transform: StringifyTransform) -> str:
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if self.prefix is None:
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return "'" + self.data + "'"
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else:
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return self.prefix + "'" + self.data + "'"
|
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def describe_signature(self, signode: TextElement, mode: str,
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env: BuildEnvironment, symbol: Symbol) -> None:
|
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txt = str(self)
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signode += addnodes.desc_sig_literal_char(txt, txt)
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class ASTStringLiteral(ASTLiteral):
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def __init__(self, data: str) -> None:
|
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self.data = data
|
||
|
|
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def _stringify(self, transform: StringifyTransform) -> str:
|
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|
return self.data
|
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|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
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env: BuildEnvironment, symbol: Symbol) -> None:
|
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txt = str(self)
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signode += addnodes.desc_sig_literal_string(txt, txt)
|
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|
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class ASTIdExpression(ASTExpression):
|
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def __init__(self, name: ASTNestedName):
|
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|
# note: this class is basically to cast a nested name as an expression
|
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|
self.name = name
|
||
|
|
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def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
return transform(self.name)
|
||
|
|
||
|
def get_id(self, version: int) -> str:
|
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|
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: 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:
|
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|
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 | None, 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: ASTAttributeList) -> 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(')')
|
||
|
if len(self.attrs) != 0:
|
||
|
res.append(' ')
|
||
|
res.append(transform(self.attrs))
|
||
|
return ''.join(res)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
multi_line_parameter_list = False
|
||
|
test_node: Element = signode
|
||
|
while test_node.parent:
|
||
|
if not isinstance(test_node, addnodes.desc_signature):
|
||
|
test_node = test_node.parent
|
||
|
continue
|
||
|
multi_line_parameter_list = test_node.get('multi_line_parameter_list', False)
|
||
|
break
|
||
|
|
||
|
# only use the desc_parameterlist for the outer list, not for inner lists
|
||
|
if mode == 'lastIsName':
|
||
|
paramlist = addnodes.desc_parameterlist()
|
||
|
paramlist['multi_line_parameter_list'] = multi_line_parameter_list
|
||
|
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(')', ')')
|
||
|
|
||
|
if len(self.attrs) != 0:
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
self.attrs.describe_signature(signode)
|
||
|
|
||
|
|
||
|
class ASTDeclSpecsSimple(ASTBaseBase):
|
||
|
def __init__(self, storage: str, threadLocal: str, inline: bool,
|
||
|
restrict: bool, volatile: bool, const: bool, attrs: ASTAttributeList) -> 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] = []
|
||
|
if len(self.attrs) != 0:
|
||
|
res.append(transform(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))
|
||
|
|
||
|
if len(modifiers) != 0 and len(self.attrs) != 0:
|
||
|
modifiers.append(addnodes.desc_sig_space())
|
||
|
tempNode = nodes.TextElement()
|
||
|
self.attrs.describe_signature(tempNode)
|
||
|
modifiers.extend(tempNode.children)
|
||
|
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,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
if self.declId:
|
||
|
self.declId.describe_signature(signode, mode, env, symbol)
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
signode += addnodes.desc_sig_punctuation(':', ':')
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
self.size.describe_signature(signode, mode, env, symbol)
|
||
|
|
||
|
|
||
|
class ASTDeclaratorPtr(ASTDeclarator):
|
||
|
def __init__(self, next: ASTDeclarator, restrict: bool, volatile: bool, const: bool,
|
||
|
attrs: ASTAttributeList) -> None:
|
||
|
assert next
|
||
|
self.next = next
|
||
|
self.restrict = restrict
|
||
|
self.volatile = volatile
|
||
|
self.const = const
|
||
|
self.attrs = attrs
|
||
|
|
||
|
@property
|
||
|
def name(self) -> ASTNestedName:
|
||
|
return self.next.name
|
||
|
|
||
|
@property
|
||
|
def function_params(self) -> list[ASTFunctionParameter]:
|
||
|
return self.next.function_params
|
||
|
|
||
|
def require_space_after_declSpecs(self) -> bool:
|
||
|
return self.const or self.volatile or self.restrict or \
|
||
|
len(self.attrs) > 0 or \
|
||
|
self.next.require_space_after_declSpecs()
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = ['*']
|
||
|
res.append(transform(self.attrs))
|
||
|
if len(self.attrs) != 0 and (self.restrict or self.volatile or self.const):
|
||
|
res.append(' ')
|
||
|
if self.restrict:
|
||
|
res.append('restrict')
|
||
|
if self.volatile:
|
||
|
if self.restrict:
|
||
|
res.append(' ')
|
||
|
res.append('volatile')
|
||
|
if self.const:
|
||
|
if self.restrict or self.volatile:
|
||
|
res.append(' ')
|
||
|
res.append('const')
|
||
|
if self.const or self.volatile or self.restrict or len(self.attrs) > 0:
|
||
|
if self.next.require_space_after_declSpecs():
|
||
|
res.append(' ')
|
||
|
res.append(transform(self.next))
|
||
|
return ''.join(res)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
signode += addnodes.desc_sig_punctuation('*', '*')
|
||
|
self.attrs.describe_signature(signode)
|
||
|
if len(self.attrs) != 0 and (self.restrict or self.volatile or self.const):
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
|
||
|
def _add_anno(signode: TextElement, text: str) -> None:
|
||
|
signode += addnodes.desc_sig_keyword(text, text)
|
||
|
|
||
|
if self.restrict:
|
||
|
_add_anno(signode, 'restrict')
|
||
|
if self.volatile:
|
||
|
if self.restrict:
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
_add_anno(signode, 'volatile')
|
||
|
if self.const:
|
||
|
if self.restrict or self.volatile:
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
_add_anno(signode, 'const')
|
||
|
if self.const or self.volatile or self.restrict or len(self.attrs) > 0:
|
||
|
if self.next.require_space_after_declSpecs():
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
self.next.describe_signature(signode, mode, env, symbol)
|
||
|
|
||
|
|
||
|
class ASTDeclaratorParen(ASTDeclarator):
|
||
|
def __init__(self, inner: ASTDeclarator, next: ASTDeclarator) -> None:
|
||
|
assert inner
|
||
|
assert next
|
||
|
self.inner = inner
|
||
|
self.next = next
|
||
|
# TODO: we assume the name and params are in inner
|
||
|
|
||
|
@property
|
||
|
def name(self) -> ASTNestedName:
|
||
|
return self.inner.name
|
||
|
|
||
|
@property
|
||
|
def function_params(self) -> list[ASTFunctionParameter]:
|
||
|
return self.inner.function_params
|
||
|
|
||
|
def require_space_after_declSpecs(self) -> bool:
|
||
|
return True
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = ['(']
|
||
|
res.append(transform(self.inner))
|
||
|
res.append(')')
|
||
|
res.append(transform(self.next))
|
||
|
return ''.join(res)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
signode += addnodes.desc_sig_punctuation('(', '(')
|
||
|
self.inner.describe_signature(signode, mode, env, symbol)
|
||
|
signode += addnodes.desc_sig_punctuation(')', ')')
|
||
|
self.next.describe_signature(signode, "noneIsName", env, symbol)
|
||
|
|
||
|
|
||
|
# Initializer
|
||
|
################################################################################
|
||
|
|
||
|
class ASTParenExprList(ASTBaseParenExprList):
|
||
|
def __init__(self, exprs: list[ASTExpression]) -> None:
|
||
|
self.exprs = exprs
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
exprs = [transform(e) for e in self.exprs]
|
||
|
return '(%s)' % ', '.join(exprs)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
signode += addnodes.desc_sig_punctuation('(', '(')
|
||
|
first = True
|
||
|
for e in self.exprs:
|
||
|
if not first:
|
||
|
signode += addnodes.desc_sig_punctuation(',', ',')
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
else:
|
||
|
first = False
|
||
|
e.describe_signature(signode, mode, env, symbol)
|
||
|
signode += addnodes.desc_sig_punctuation(')', ')')
|
||
|
|
||
|
|
||
|
class ASTBracedInitList(ASTBase):
|
||
|
def __init__(self, exprs: list[ASTExpression], trailingComma: bool) -> None:
|
||
|
self.exprs = exprs
|
||
|
self.trailingComma = trailingComma
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
exprs = ', '.join(transform(e) for e in self.exprs)
|
||
|
trailingComma = ',' if self.trailingComma else ''
|
||
|
return f'{{{exprs}{trailingComma}}}'
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
signode += addnodes.desc_sig_punctuation('{', '{')
|
||
|
first = True
|
||
|
for e in self.exprs:
|
||
|
if not first:
|
||
|
signode += addnodes.desc_sig_punctuation(',', ',')
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
else:
|
||
|
first = False
|
||
|
e.describe_signature(signode, mode, env, symbol)
|
||
|
if self.trailingComma:
|
||
|
signode += addnodes.desc_sig_punctuation(',', ',')
|
||
|
signode += addnodes.desc_sig_punctuation('}', '}')
|
||
|
|
||
|
|
||
|
class ASTInitializer(ASTBase):
|
||
|
def __init__(self, value: ASTBracedInitList | ASTExpression,
|
||
|
hasAssign: bool = True) -> None:
|
||
|
self.value = value
|
||
|
self.hasAssign = hasAssign
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
val = transform(self.value)
|
||
|
if self.hasAssign:
|
||
|
return ' = ' + val
|
||
|
else:
|
||
|
return val
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
if self.hasAssign:
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
signode += addnodes.desc_sig_punctuation('=', '=')
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
self.value.describe_signature(signode, 'markType', env, symbol)
|
||
|
|
||
|
|
||
|
class ASTType(ASTBase):
|
||
|
def __init__(self, declSpecs: ASTDeclSpecs, decl: ASTDeclarator) -> None:
|
||
|
assert declSpecs
|
||
|
assert decl
|
||
|
self.declSpecs = declSpecs
|
||
|
self.decl = decl
|
||
|
|
||
|
@property
|
||
|
def name(self) -> ASTNestedName:
|
||
|
return self.decl.name
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return symbol.get_full_nested_name().get_id(version)
|
||
|
|
||
|
@property
|
||
|
def function_params(self) -> list[ASTFunctionParameter]:
|
||
|
return self.decl.function_params
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = []
|
||
|
declSpecs = transform(self.declSpecs)
|
||
|
res.append(declSpecs)
|
||
|
if self.decl.require_space_after_declSpecs() and len(declSpecs) > 0:
|
||
|
res.append(' ')
|
||
|
res.append(transform(self.decl))
|
||
|
return ''.join(res)
|
||
|
|
||
|
def get_type_declaration_prefix(self) -> str:
|
||
|
if self.declSpecs.trailingTypeSpec:
|
||
|
return 'typedef'
|
||
|
else:
|
||
|
return 'type'
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.declSpecs.describe_signature(signode, 'markType', env, symbol)
|
||
|
if (self.decl.require_space_after_declSpecs() and
|
||
|
len(str(self.declSpecs)) > 0):
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
# for parameters that don't really declare new names we get 'markType',
|
||
|
# this should not be propagated, but be 'noneIsName'.
|
||
|
if mode == 'markType':
|
||
|
mode = 'noneIsName'
|
||
|
self.decl.describe_signature(signode, mode, env, symbol)
|
||
|
|
||
|
|
||
|
class ASTTypeWithInit(ASTBase):
|
||
|
def __init__(self, type: ASTType, init: ASTInitializer) -> None:
|
||
|
self.type = type
|
||
|
self.init = init
|
||
|
|
||
|
@property
|
||
|
def name(self) -> ASTNestedName:
|
||
|
return self.type.name
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return self.type.get_id(version, objectType, symbol)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = []
|
||
|
res.append(transform(self.type))
|
||
|
if self.init:
|
||
|
res.append(transform(self.init))
|
||
|
return ''.join(res)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.type.describe_signature(signode, mode, env, symbol)
|
||
|
if self.init:
|
||
|
self.init.describe_signature(signode, mode, env, symbol)
|
||
|
|
||
|
|
||
|
class ASTMacroParameter(ASTBase):
|
||
|
def __init__(self, arg: ASTNestedName | None, ellipsis: bool = False,
|
||
|
variadic: bool = False) -> None:
|
||
|
self.arg = arg
|
||
|
self.ellipsis = ellipsis
|
||
|
self.variadic = variadic
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
if self.ellipsis:
|
||
|
return '...'
|
||
|
elif self.variadic:
|
||
|
return transform(self.arg) + '...'
|
||
|
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('...', '...')
|
||
|
elif self.variadic:
|
||
|
name = str(self)
|
||
|
signode += addnodes.desc_sig_name(name, name)
|
||
|
else:
|
||
|
self.arg.describe_signature(signode, mode, env, symbol=symbol)
|
||
|
|
||
|
|
||
|
class ASTMacro(ASTBase):
|
||
|
def __init__(self, ident: ASTNestedName, args: list[ASTMacroParameter] | None) -> None:
|
||
|
self.ident = ident
|
||
|
self.args = args
|
||
|
|
||
|
@property
|
||
|
def name(self) -> ASTNestedName:
|
||
|
return self.ident
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return symbol.get_full_nested_name().get_id(version)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = []
|
||
|
res.append(transform(self.ident))
|
||
|
if self.args is not None:
|
||
|
res.append('(')
|
||
|
first = True
|
||
|
for arg in self.args:
|
||
|
if not first:
|
||
|
res.append(', ')
|
||
|
first = False
|
||
|
res.append(transform(arg))
|
||
|
res.append(')')
|
||
|
return ''.join(res)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.ident.describe_signature(signode, mode, env, symbol)
|
||
|
if self.args is None:
|
||
|
return
|
||
|
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
|
||
|
|
||
|
|
||
|
class ASTStruct(ASTBase):
|
||
|
def __init__(self, name: ASTNestedName) -> None:
|
||
|
self.name = name
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return symbol.get_full_nested_name().get_id(version)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
return transform(self.name)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.name.describe_signature(signode, mode, env, symbol=symbol)
|
||
|
|
||
|
|
||
|
class ASTUnion(ASTBase):
|
||
|
def __init__(self, name: ASTNestedName) -> None:
|
||
|
self.name = name
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return symbol.get_full_nested_name().get_id(version)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
return transform(self.name)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.name.describe_signature(signode, mode, env, symbol=symbol)
|
||
|
|
||
|
|
||
|
class ASTEnum(ASTBase):
|
||
|
def __init__(self, name: ASTNestedName) -> None:
|
||
|
self.name = name
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return symbol.get_full_nested_name().get_id(version)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
return transform(self.name)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.name.describe_signature(signode, mode, env, symbol=symbol)
|
||
|
|
||
|
|
||
|
class ASTEnumerator(ASTBase):
|
||
|
def __init__(self, name: ASTNestedName, init: ASTInitializer | None,
|
||
|
attrs: ASTAttributeList) -> None:
|
||
|
self.name = name
|
||
|
self.init = init
|
||
|
self.attrs = attrs
|
||
|
|
||
|
def get_id(self, version: int, objectType: str, symbol: Symbol) -> str:
|
||
|
return symbol.get_full_nested_name().get_id(version)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = []
|
||
|
res.append(transform(self.name))
|
||
|
if len(self.attrs) != 0:
|
||
|
res.append(' ')
|
||
|
res.append(transform(self.attrs))
|
||
|
if self.init:
|
||
|
res.append(transform(self.init))
|
||
|
return ''.join(res)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, symbol: Symbol) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
self.name.describe_signature(signode, mode, env, symbol)
|
||
|
if len(self.attrs) != 0:
|
||
|
signode += addnodes.desc_sig_space()
|
||
|
self.attrs.describe_signature(signode)
|
||
|
if self.init:
|
||
|
self.init.describe_signature(signode, 'markType', env, symbol)
|
||
|
|
||
|
|
||
|
class ASTDeclaration(ASTBaseBase):
|
||
|
def __init__(self, objectType: str, directiveType: str | None,
|
||
|
declaration: DeclarationType | ASTFunctionParameter,
|
||
|
semicolon: bool = False) -> None:
|
||
|
self.objectType = objectType
|
||
|
self.directiveType = directiveType
|
||
|
self.declaration = declaration
|
||
|
self.semicolon = semicolon
|
||
|
|
||
|
self.symbol: Symbol = None
|
||
|
# set by CObject._add_enumerator_to_parent
|
||
|
self.enumeratorScopedSymbol: Symbol = None
|
||
|
|
||
|
def clone(self) -> ASTDeclaration:
|
||
|
return ASTDeclaration(self.objectType, self.directiveType,
|
||
|
self.declaration.clone(), self.semicolon)
|
||
|
|
||
|
@property
|
||
|
def name(self) -> ASTNestedName:
|
||
|
decl = cast(DeclarationType, self.declaration)
|
||
|
return decl.name
|
||
|
|
||
|
@property
|
||
|
def function_params(self) -> list[ASTFunctionParameter] | None:
|
||
|
if self.objectType != 'function':
|
||
|
return None
|
||
|
decl = cast(ASTType, self.declaration)
|
||
|
return decl.function_params
|
||
|
|
||
|
def get_id(self, version: int, prefixed: bool = True) -> str:
|
||
|
if self.objectType == 'enumerator' and self.enumeratorScopedSymbol:
|
||
|
return self.enumeratorScopedSymbol.declaration.get_id(version, prefixed)
|
||
|
id_ = self.declaration.get_id(version, self.objectType, self.symbol)
|
||
|
if prefixed:
|
||
|
return _id_prefix[version] + id_
|
||
|
else:
|
||
|
return id_
|
||
|
|
||
|
def get_newest_id(self) -> str:
|
||
|
return self.get_id(_max_id, True)
|
||
|
|
||
|
def _stringify(self, transform: StringifyTransform) -> str:
|
||
|
res = transform(self.declaration)
|
||
|
if self.semicolon:
|
||
|
res += ';'
|
||
|
return res
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, mode: str,
|
||
|
env: BuildEnvironment, options: dict) -> None:
|
||
|
verify_description_mode(mode)
|
||
|
assert self.symbol
|
||
|
# The caller of the domain added a desc_signature node.
|
||
|
# Always enable multiline:
|
||
|
signode['is_multiline'] = True
|
||
|
# Put each line in a desc_signature_line node.
|
||
|
mainDeclNode = addnodes.desc_signature_line()
|
||
|
mainDeclNode.sphinx_line_type = 'declarator'
|
||
|
mainDeclNode['add_permalink'] = not self.symbol.isRedeclaration
|
||
|
signode += mainDeclNode
|
||
|
|
||
|
if self.objectType in {'member', 'function', 'macro'}:
|
||
|
pass
|
||
|
elif self.objectType == 'struct':
|
||
|
mainDeclNode += addnodes.desc_sig_keyword('struct', 'struct')
|
||
|
mainDeclNode += addnodes.desc_sig_space()
|
||
|
elif self.objectType == 'union':
|
||
|
mainDeclNode += addnodes.desc_sig_keyword('union', 'union')
|
||
|
mainDeclNode += addnodes.desc_sig_space()
|
||
|
elif self.objectType == 'enum':
|
||
|
mainDeclNode += addnodes.desc_sig_keyword('enum', 'enum')
|
||
|
mainDeclNode += addnodes.desc_sig_space()
|
||
|
elif self.objectType == 'enumerator':
|
||
|
mainDeclNode += addnodes.desc_sig_keyword('enumerator', 'enumerator')
|
||
|
mainDeclNode += addnodes.desc_sig_space()
|
||
|
elif self.objectType == 'type':
|
||
|
decl = cast(ASTType, self.declaration)
|
||
|
prefix = decl.get_type_declaration_prefix()
|
||
|
mainDeclNode += addnodes.desc_sig_keyword(prefix, prefix)
|
||
|
mainDeclNode += addnodes.desc_sig_space()
|
||
|
else:
|
||
|
raise AssertionError
|
||
|
self.declaration.describe_signature(mainDeclNode, mode, env, self.symbol)
|
||
|
if self.semicolon:
|
||
|
mainDeclNode += addnodes.desc_sig_punctuation(';', ';')
|
||
|
|
||
|
|
||
|
class SymbolLookupResult:
|
||
|
def __init__(self, symbols: Iterator[Symbol], parentSymbol: Symbol,
|
||
|
ident: ASTIdentifier) -> None:
|
||
|
self.symbols = symbols
|
||
|
self.parentSymbol = parentSymbol
|
||
|
self.ident = ident
|
||
|
|
||
|
|
||
|
class LookupKey:
|
||
|
def __init__(self, data: list[tuple[ASTIdentifier, str]]) -> None:
|
||
|
self.data = data
|
||
|
|
||
|
def __str__(self) -> str:
|
||
|
inner = ', '.join(f"({ident}, {id_})" for ident, id_ in self.data)
|
||
|
return f'[{inner}]'
|
||
|
|
||
|
|
||
|
class Symbol:
|
||
|
debug_indent = 0
|
||
|
debug_indent_string = " "
|
||
|
debug_lookup = False
|
||
|
debug_show_tree = False
|
||
|
|
||
|
def __copy__(self):
|
||
|
raise AssertionError # shouldn't happen
|
||
|
|
||
|
def __deepcopy__(self, memo):
|
||
|
if self.parent:
|
||
|
raise AssertionError # shouldn't happen
|
||
|
# the domain base class makes a copy of the initial data, which is fine
|
||
|
return Symbol(None, None, None, None, None)
|
||
|
|
||
|
@staticmethod
|
||
|
def debug_print(*args: Any) -> None:
|
||
|
logger.debug(Symbol.debug_indent_string * Symbol.debug_indent, end="")
|
||
|
logger.debug(*args)
|
||
|
|
||
|
def _assert_invariants(self) -> None:
|
||
|
if not self.parent:
|
||
|
# parent == None means global scope, so declaration means a parent
|
||
|
assert not self.declaration
|
||
|
assert not self.docname
|
||
|
else:
|
||
|
if self.declaration:
|
||
|
assert self.docname
|
||
|
|
||
|
def __setattr__(self, key: str, value: Any) -> None:
|
||
|
if key == "children":
|
||
|
raise AssertionError
|
||
|
return super().__setattr__(key, value)
|
||
|
|
||
|
def __init__(
|
||
|
self,
|
||
|
parent: Symbol,
|
||
|
ident: ASTIdentifier,
|
||
|
declaration: ASTDeclaration | None,
|
||
|
docname: str | None,
|
||
|
line: int | None,
|
||
|
) -> None:
|
||
|
self.parent = parent
|
||
|
# declarations in a single directive are linked together
|
||
|
self.siblingAbove: Symbol = None
|
||
|
self.siblingBelow: Symbol = None
|
||
|
self.ident = ident
|
||
|
self.declaration = declaration
|
||
|
self.docname = docname
|
||
|
self.line = line
|
||
|
self.isRedeclaration = False
|
||
|
self._assert_invariants()
|
||
|
|
||
|
# Remember to modify Symbol.remove if modifications to the parent change.
|
||
|
self._children: list[Symbol] = []
|
||
|
self._anonChildren: list[Symbol] = []
|
||
|
# note: _children includes _anonChildren
|
||
|
if self.parent:
|
||
|
self.parent._children.append(self)
|
||
|
if self.declaration:
|
||
|
self.declaration.symbol = self
|
||
|
|
||
|
# Do symbol addition after self._children has been initialised.
|
||
|
self._add_function_params()
|
||
|
|
||
|
def _fill_empty(self, declaration: ASTDeclaration, docname: str, line: int) -> None:
|
||
|
self._assert_invariants()
|
||
|
assert self.declaration is None
|
||
|
assert self.docname is None
|
||
|
assert self.line is None
|
||
|
assert declaration is not None
|
||
|
assert docname is not None
|
||
|
assert line is not None
|
||
|
self.declaration = declaration
|
||
|
self.declaration.symbol = self
|
||
|
self.docname = docname
|
||
|
self.line = line
|
||
|
self._assert_invariants()
|
||
|
# and symbol addition should be done as well
|
||
|
self._add_function_params()
|
||
|
|
||
|
def _add_function_params(self) -> None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("_add_function_params:")
|
||
|
# Note: we may be called from _fill_empty, so the symbols we want
|
||
|
# to add may actually already be present (as empty symbols).
|
||
|
|
||
|
# add symbols for function parameters, if any
|
||
|
if self.declaration is not None and self.declaration.function_params is not None:
|
||
|
for p in self.declaration.function_params:
|
||
|
if p.arg is None:
|
||
|
continue
|
||
|
nn = p.arg.name
|
||
|
if nn is None:
|
||
|
continue
|
||
|
# (comparing to the template params: we have checked that we are a declaration)
|
||
|
decl = ASTDeclaration('functionParam', None, p)
|
||
|
assert not nn.rooted
|
||
|
assert len(nn.names) == 1
|
||
|
self._add_symbols(nn, decl, self.docname, self.line)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 1
|
||
|
|
||
|
def remove(self) -> None:
|
||
|
if self.parent is None:
|
||
|
return
|
||
|
assert self in self.parent._children
|
||
|
self.parent._children.remove(self)
|
||
|
self.parent = None
|
||
|
|
||
|
def clear_doc(self, docname: str) -> None:
|
||
|
for sChild in self._children:
|
||
|
sChild.clear_doc(docname)
|
||
|
if sChild.declaration and sChild.docname == docname:
|
||
|
sChild.declaration = None
|
||
|
sChild.docname = None
|
||
|
sChild.line = None
|
||
|
if sChild.siblingAbove is not None:
|
||
|
sChild.siblingAbove.siblingBelow = sChild.siblingBelow
|
||
|
if sChild.siblingBelow is not None:
|
||
|
sChild.siblingBelow.siblingAbove = sChild.siblingAbove
|
||
|
sChild.siblingAbove = None
|
||
|
sChild.siblingBelow = None
|
||
|
|
||
|
def get_all_symbols(self) -> Iterator[Symbol]:
|
||
|
yield self
|
||
|
for sChild in self._children:
|
||
|
yield from sChild.get_all_symbols()
|
||
|
|
||
|
@property
|
||
|
def children(self) -> Iterator[Symbol]:
|
||
|
yield from self._children
|
||
|
|
||
|
@property
|
||
|
def children_recurse_anon(self) -> Iterator[Symbol]:
|
||
|
for c in self._children:
|
||
|
yield c
|
||
|
if not c.ident.is_anon():
|
||
|
continue
|
||
|
yield from c.children_recurse_anon
|
||
|
|
||
|
def get_lookup_key(self) -> LookupKey:
|
||
|
# The pickle files for the environment and for each document are distinct.
|
||
|
# The environment has all the symbols, but the documents has xrefs that
|
||
|
# must know their scope. A lookup key is essentially a specification of
|
||
|
# how to find a specific symbol.
|
||
|
symbols = []
|
||
|
s = self
|
||
|
while s.parent:
|
||
|
symbols.append(s)
|
||
|
s = s.parent
|
||
|
symbols.reverse()
|
||
|
key = []
|
||
|
for s in symbols:
|
||
|
if s.declaration is not None:
|
||
|
# TODO: do we need the ID?
|
||
|
key.append((s.ident, s.declaration.get_newest_id()))
|
||
|
else:
|
||
|
key.append((s.ident, None))
|
||
|
return LookupKey(key)
|
||
|
|
||
|
def get_full_nested_name(self) -> ASTNestedName:
|
||
|
symbols = []
|
||
|
s = self
|
||
|
while s.parent:
|
||
|
symbols.append(s)
|
||
|
s = s.parent
|
||
|
symbols.reverse()
|
||
|
names = []
|
||
|
for s in symbols:
|
||
|
names.append(s.ident)
|
||
|
return ASTNestedName(names, rooted=False)
|
||
|
|
||
|
def _find_first_named_symbol(self, ident: ASTIdentifier,
|
||
|
matchSelf: bool, recurseInAnon: bool) -> Symbol | None:
|
||
|
# TODO: further simplification from C++ to C
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("_find_first_named_symbol ->")
|
||
|
res = self._find_named_symbols(ident, matchSelf, recurseInAnon,
|
||
|
searchInSiblings=False)
|
||
|
try:
|
||
|
return next(res)
|
||
|
except StopIteration:
|
||
|
return None
|
||
|
|
||
|
def _find_named_symbols(self, ident: ASTIdentifier,
|
||
|
matchSelf: bool, recurseInAnon: bool,
|
||
|
searchInSiblings: bool) -> Iterator[Symbol]:
|
||
|
# TODO: further simplification from C++ to C
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("_find_named_symbols:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("self:")
|
||
|
logger.debug(self.to_string(Symbol.debug_indent + 1), end="")
|
||
|
Symbol.debug_print("ident: ", ident)
|
||
|
Symbol.debug_print("matchSelf: ", matchSelf)
|
||
|
Symbol.debug_print("recurseInAnon: ", recurseInAnon)
|
||
|
Symbol.debug_print("searchInSiblings: ", searchInSiblings)
|
||
|
|
||
|
def candidates() -> Generator[Symbol, None, None]:
|
||
|
s = self
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("searching in self:")
|
||
|
logger.debug(s.to_string(Symbol.debug_indent + 1), end="")
|
||
|
while True:
|
||
|
if matchSelf:
|
||
|
yield s
|
||
|
if recurseInAnon:
|
||
|
yield from s.children_recurse_anon
|
||
|
else:
|
||
|
yield from s._children
|
||
|
|
||
|
if s.siblingAbove is None:
|
||
|
break
|
||
|
s = s.siblingAbove
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("searching in sibling:")
|
||
|
logger.debug(s.to_string(Symbol.debug_indent + 1), end="")
|
||
|
|
||
|
for s in candidates():
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("candidate:")
|
||
|
logger.debug(s.to_string(Symbol.debug_indent + 1), end="")
|
||
|
if s.ident == ident:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("matches")
|
||
|
Symbol.debug_indent -= 3
|
||
|
yield s
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 2
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 2
|
||
|
|
||
|
def _symbol_lookup(
|
||
|
self,
|
||
|
nestedName: ASTNestedName,
|
||
|
onMissingQualifiedSymbol: Callable[[Symbol, ASTIdentifier], Symbol | None],
|
||
|
ancestorLookupType: str | None,
|
||
|
matchSelf: bool,
|
||
|
recurseInAnon: bool,
|
||
|
searchInSiblings: bool,
|
||
|
) -> SymbolLookupResult | None:
|
||
|
# TODO: further simplification from C++ to C
|
||
|
# ancestorLookupType: if not None, specifies the target type of the lookup
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("_symbol_lookup:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("self:")
|
||
|
logger.debug(self.to_string(Symbol.debug_indent + 1), end="")
|
||
|
Symbol.debug_print("nestedName: ", nestedName)
|
||
|
Symbol.debug_print("ancestorLookupType:", ancestorLookupType)
|
||
|
Symbol.debug_print("matchSelf: ", matchSelf)
|
||
|
Symbol.debug_print("recurseInAnon: ", recurseInAnon)
|
||
|
Symbol.debug_print("searchInSiblings: ", searchInSiblings)
|
||
|
|
||
|
names = nestedName.names
|
||
|
|
||
|
# find the right starting point for lookup
|
||
|
parentSymbol = self
|
||
|
if nestedName.rooted:
|
||
|
while parentSymbol.parent:
|
||
|
parentSymbol = parentSymbol.parent
|
||
|
if ancestorLookupType is not None:
|
||
|
# walk up until we find the first identifier
|
||
|
firstName = names[0]
|
||
|
while parentSymbol.parent:
|
||
|
if parentSymbol.find_identifier(firstName,
|
||
|
matchSelf=matchSelf,
|
||
|
recurseInAnon=recurseInAnon,
|
||
|
searchInSiblings=searchInSiblings):
|
||
|
break
|
||
|
parentSymbol = parentSymbol.parent
|
||
|
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("starting point:")
|
||
|
logger.debug(parentSymbol.to_string(Symbol.debug_indent + 1), end="")
|
||
|
|
||
|
# and now the actual lookup
|
||
|
for ident in names[:-1]:
|
||
|
symbol = parentSymbol._find_first_named_symbol(
|
||
|
ident, matchSelf=matchSelf, recurseInAnon=recurseInAnon)
|
||
|
if symbol is None:
|
||
|
symbol = onMissingQualifiedSymbol(parentSymbol, ident)
|
||
|
if symbol is None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 2
|
||
|
return None
|
||
|
# We have now matched part of a nested name, and need to match more
|
||
|
# so even if we should matchSelf before, we definitely shouldn't
|
||
|
# even more. (see also issue #2666)
|
||
|
matchSelf = False
|
||
|
parentSymbol = symbol
|
||
|
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("handle last name from:")
|
||
|
logger.debug(parentSymbol.to_string(Symbol.debug_indent + 1), end="")
|
||
|
|
||
|
# handle the last name
|
||
|
ident = names[-1]
|
||
|
|
||
|
symbols = parentSymbol._find_named_symbols(
|
||
|
ident, matchSelf=matchSelf,
|
||
|
recurseInAnon=recurseInAnon,
|
||
|
searchInSiblings=searchInSiblings)
|
||
|
if Symbol.debug_lookup:
|
||
|
symbols = list(symbols) # type: ignore[assignment]
|
||
|
Symbol.debug_indent -= 2
|
||
|
return SymbolLookupResult(symbols, parentSymbol, ident)
|
||
|
|
||
|
def _add_symbols(
|
||
|
self,
|
||
|
nestedName: ASTNestedName,
|
||
|
declaration: ASTDeclaration | None,
|
||
|
docname: str | None,
|
||
|
line: int | None,
|
||
|
) -> Symbol:
|
||
|
# TODO: further simplification from C++ to C
|
||
|
# Used for adding a whole path of symbols, where the last may or may not
|
||
|
# be an actual declaration.
|
||
|
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("_add_symbols:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("nn: ", nestedName)
|
||
|
Symbol.debug_print("decl: ", declaration)
|
||
|
Symbol.debug_print(f"location: {docname}:{line}")
|
||
|
|
||
|
def onMissingQualifiedSymbol(parentSymbol: Symbol, ident: ASTIdentifier) -> Symbol:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("_add_symbols, onMissingQualifiedSymbol:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("ident: ", ident)
|
||
|
Symbol.debug_indent -= 2
|
||
|
return Symbol(parent=parentSymbol, ident=ident,
|
||
|
declaration=None, docname=None, line=None)
|
||
|
|
||
|
lookupResult = self._symbol_lookup(nestedName,
|
||
|
onMissingQualifiedSymbol,
|
||
|
ancestorLookupType=None,
|
||
|
matchSelf=False,
|
||
|
recurseInAnon=False,
|
||
|
searchInSiblings=False)
|
||
|
assert lookupResult is not None # we create symbols all the way, so that can't happen
|
||
|
symbols = list(lookupResult.symbols)
|
||
|
if len(symbols) == 0:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("_add_symbols, result, no symbol:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("ident: ", lookupResult.ident)
|
||
|
Symbol.debug_print("declaration: ", declaration)
|
||
|
Symbol.debug_print(f"location: {docname}:{line}")
|
||
|
Symbol.debug_indent -= 1
|
||
|
symbol = Symbol(parent=lookupResult.parentSymbol,
|
||
|
ident=lookupResult.ident,
|
||
|
declaration=declaration,
|
||
|
docname=docname, line=line)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 2
|
||
|
return symbol
|
||
|
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("_add_symbols, result, symbols:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("number symbols:", len(symbols))
|
||
|
Symbol.debug_indent -= 1
|
||
|
|
||
|
if not declaration:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("no declaration")
|
||
|
Symbol.debug_indent -= 2
|
||
|
# good, just a scope creation
|
||
|
# TODO: what if we have more than one symbol?
|
||
|
return symbols[0]
|
||
|
|
||
|
noDecl = []
|
||
|
withDecl = []
|
||
|
dupDecl = []
|
||
|
for s in symbols:
|
||
|
if s.declaration is None:
|
||
|
noDecl.append(s)
|
||
|
elif s.isRedeclaration:
|
||
|
dupDecl.append(s)
|
||
|
else:
|
||
|
withDecl.append(s)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("#noDecl: ", len(noDecl))
|
||
|
Symbol.debug_print("#withDecl:", len(withDecl))
|
||
|
Symbol.debug_print("#dupDecl: ", len(dupDecl))
|
||
|
|
||
|
# With partial builds we may start with a large symbol tree stripped of declarations.
|
||
|
# Essentially any combination of noDecl, withDecl, and dupDecls seems possible.
|
||
|
# TODO: make partial builds fully work. What should happen when the primary symbol gets
|
||
|
# deleted, and other duplicates exist? The full document should probably be rebuild.
|
||
|
|
||
|
# First check if one of those with a declaration matches.
|
||
|
# If it's a function, we need to compare IDs,
|
||
|
# otherwise there should be only one symbol with a declaration.
|
||
|
def makeCandSymbol() -> Symbol:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("begin: creating candidate symbol")
|
||
|
symbol = Symbol(parent=lookupResult.parentSymbol,
|
||
|
ident=lookupResult.ident,
|
||
|
declaration=declaration,
|
||
|
docname=docname, line=line)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("end: creating candidate symbol")
|
||
|
return symbol
|
||
|
|
||
|
if len(withDecl) == 0:
|
||
|
candSymbol = None
|
||
|
else:
|
||
|
candSymbol = makeCandSymbol()
|
||
|
|
||
|
def handleDuplicateDeclaration(symbol: Symbol, candSymbol: Symbol) -> None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("redeclaration")
|
||
|
Symbol.debug_indent -= 1
|
||
|
Symbol.debug_indent -= 2
|
||
|
# Redeclaration of the same symbol.
|
||
|
# Let the new one be there, but raise an error to the client
|
||
|
# so it can use the real symbol as subscope.
|
||
|
# This will probably result in a duplicate id warning.
|
||
|
candSymbol.isRedeclaration = True
|
||
|
raise _DuplicateSymbolError(symbol, declaration)
|
||
|
|
||
|
if declaration.objectType != "function":
|
||
|
assert len(withDecl) <= 1
|
||
|
handleDuplicateDeclaration(withDecl[0], candSymbol)
|
||
|
# (not reachable)
|
||
|
|
||
|
# a function, so compare IDs
|
||
|
candId = declaration.get_newest_id()
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("candId:", candId)
|
||
|
for symbol in withDecl:
|
||
|
oldId = symbol.declaration.get_newest_id()
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("oldId: ", oldId)
|
||
|
if candId == oldId:
|
||
|
handleDuplicateDeclaration(symbol, candSymbol)
|
||
|
# (not reachable)
|
||
|
# no candidate symbol found with matching ID
|
||
|
# if there is an empty symbol, fill that one
|
||
|
if len(noDecl) == 0:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print(
|
||
|
"no match, no empty, candSybmol is not None?:", candSymbol is not None,
|
||
|
)
|
||
|
Symbol.debug_indent -= 2
|
||
|
if candSymbol is not None:
|
||
|
return candSymbol
|
||
|
else:
|
||
|
return makeCandSymbol()
|
||
|
else:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print(
|
||
|
"no match, but fill an empty declaration, candSybmol is not None?:",
|
||
|
candSymbol is not None)
|
||
|
Symbol.debug_indent -= 2
|
||
|
if candSymbol is not None:
|
||
|
candSymbol.remove()
|
||
|
# assert len(noDecl) == 1
|
||
|
# TODO: enable assertion when we at some point find out how to do cleanup
|
||
|
# for now, just take the first one, it should work fine ... right?
|
||
|
symbol = noDecl[0]
|
||
|
# If someone first opened the scope, and then later
|
||
|
# declares it, e.g,
|
||
|
# .. namespace:: Test
|
||
|
# .. namespace:: nullptr
|
||
|
# .. class:: Test
|
||
|
symbol._fill_empty(declaration, docname, line)
|
||
|
return symbol
|
||
|
|
||
|
def merge_with(self, other: Symbol, docnames: list[str],
|
||
|
env: BuildEnvironment) -> None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("merge_with:")
|
||
|
assert other is not None
|
||
|
for otherChild in other._children:
|
||
|
ourChild = self._find_first_named_symbol(
|
||
|
ident=otherChild.ident, matchSelf=False,
|
||
|
recurseInAnon=False)
|
||
|
if ourChild is None:
|
||
|
# TODO: hmm, should we prune by docnames?
|
||
|
self._children.append(otherChild)
|
||
|
otherChild.parent = self
|
||
|
otherChild._assert_invariants()
|
||
|
continue
|
||
|
if otherChild.declaration and otherChild.docname in docnames:
|
||
|
if not ourChild.declaration:
|
||
|
ourChild._fill_empty(otherChild.declaration,
|
||
|
otherChild.docname, otherChild.line)
|
||
|
elif ourChild.docname != otherChild.docname:
|
||
|
name = str(ourChild.declaration)
|
||
|
msg = __("Duplicate C declaration, also defined at %s:%s.\n"
|
||
|
"Declaration is '.. c:%s:: %s'.")
|
||
|
msg = msg % (ourChild.docname, ourChild.line,
|
||
|
ourChild.declaration.directiveType, name)
|
||
|
logger.warning(msg, location=(otherChild.docname, otherChild.line))
|
||
|
else:
|
||
|
# Both have declarations, and in the same docname.
|
||
|
# This can apparently happen, it should be safe to
|
||
|
# just ignore it, right?
|
||
|
pass
|
||
|
ourChild.merge_with(otherChild, docnames, env)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 1
|
||
|
|
||
|
def add_name(self, nestedName: ASTNestedName) -> Symbol:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("add_name:")
|
||
|
res = self._add_symbols(nestedName, declaration=None, docname=None, line=None)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 1
|
||
|
return res
|
||
|
|
||
|
def add_declaration(self, declaration: ASTDeclaration,
|
||
|
docname: str, line: int) -> Symbol:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("add_declaration:")
|
||
|
assert declaration is not None
|
||
|
assert docname is not None
|
||
|
assert line is not None
|
||
|
nestedName = declaration.name
|
||
|
res = self._add_symbols(nestedName, declaration, docname, line)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 1
|
||
|
return res
|
||
|
|
||
|
def find_identifier(self, ident: ASTIdentifier,
|
||
|
matchSelf: bool, recurseInAnon: bool, searchInSiblings: bool,
|
||
|
) -> Symbol | None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("find_identifier:")
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("ident: ", ident)
|
||
|
Symbol.debug_print("matchSelf: ", matchSelf)
|
||
|
Symbol.debug_print("recurseInAnon: ", recurseInAnon)
|
||
|
Symbol.debug_print("searchInSiblings:", searchInSiblings)
|
||
|
logger.debug(self.to_string(Symbol.debug_indent + 1), end="")
|
||
|
Symbol.debug_indent -= 2
|
||
|
current = self
|
||
|
while current is not None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 2
|
||
|
Symbol.debug_print("trying:")
|
||
|
logger.debug(current.to_string(Symbol.debug_indent + 1), end="")
|
||
|
Symbol.debug_indent -= 2
|
||
|
if matchSelf and current.ident == ident:
|
||
|
return current
|
||
|
children = current.children_recurse_anon if recurseInAnon else current._children
|
||
|
for s in children:
|
||
|
if s.ident == ident:
|
||
|
return s
|
||
|
if not searchInSiblings:
|
||
|
break
|
||
|
current = current.siblingAbove
|
||
|
return None
|
||
|
|
||
|
def direct_lookup(self, key: LookupKey) -> Symbol | None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("direct_lookup:")
|
||
|
Symbol.debug_indent += 1
|
||
|
s = self
|
||
|
for name, id_ in key.data:
|
||
|
res = None
|
||
|
for cand in s._children:
|
||
|
if cand.ident == name:
|
||
|
res = cand
|
||
|
break
|
||
|
s = res
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_print("name: ", name)
|
||
|
Symbol.debug_print("id: ", id_)
|
||
|
if s is not None:
|
||
|
logger.debug(s.to_string(Symbol.debug_indent + 1), end="")
|
||
|
else:
|
||
|
Symbol.debug_print("not found")
|
||
|
if s is None:
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 2
|
||
|
return None
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 2
|
||
|
return s
|
||
|
|
||
|
def find_declaration(self, nestedName: ASTNestedName, typ: str,
|
||
|
matchSelf: bool, recurseInAnon: bool) -> Symbol | None:
|
||
|
# templateShorthand: missing template parameter lists for templates is ok
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent += 1
|
||
|
Symbol.debug_print("find_declaration:")
|
||
|
|
||
|
def onMissingQualifiedSymbol(
|
||
|
parentSymbol: Symbol,
|
||
|
ident: ASTIdentifier,
|
||
|
) -> Symbol | None:
|
||
|
return None
|
||
|
|
||
|
lookupResult = self._symbol_lookup(nestedName,
|
||
|
onMissingQualifiedSymbol,
|
||
|
ancestorLookupType=typ,
|
||
|
matchSelf=matchSelf,
|
||
|
recurseInAnon=recurseInAnon,
|
||
|
searchInSiblings=False)
|
||
|
if Symbol.debug_lookup:
|
||
|
Symbol.debug_indent -= 1
|
||
|
if lookupResult is None:
|
||
|
return None
|
||
|
|
||
|
symbols = list(lookupResult.symbols)
|
||
|
if len(symbols) == 0:
|
||
|
return None
|
||
|
return symbols[0]
|
||
|
|
||
|
def to_string(self, indent: int) -> str:
|
||
|
res = [Symbol.debug_indent_string * indent]
|
||
|
if not self.parent:
|
||
|
res.append('::')
|
||
|
else:
|
||
|
if self.ident:
|
||
|
res.append(str(self.ident))
|
||
|
else:
|
||
|
res.append(str(self.declaration))
|
||
|
if self.declaration:
|
||
|
res.append(": ")
|
||
|
if self.isRedeclaration:
|
||
|
res.append('!!duplicate!! ')
|
||
|
res.append(str(self.declaration))
|
||
|
if self.docname:
|
||
|
res.append('\t(')
|
||
|
res.append(self.docname)
|
||
|
res.append(')')
|
||
|
res.append('\n')
|
||
|
return ''.join(res)
|
||
|
|
||
|
def dump(self, indent: int) -> str:
|
||
|
res = [self.to_string(indent)]
|
||
|
for c in self._children:
|
||
|
res.append(c.dump(indent + 1))
|
||
|
return ''.join(res)
|
||
|
|
||
|
|
||
|
class DefinitionParser(BaseParser):
|
||
|
@property
|
||
|
def language(self) -> str:
|
||
|
return 'C'
|
||
|
|
||
|
@property
|
||
|
def id_attributes(self):
|
||
|
return self.config.c_id_attributes
|
||
|
|
||
|
@property
|
||
|
def paren_attributes(self):
|
||
|
return self.config.c_paren_attributes
|
||
|
|
||
|
def _parse_string(self) -> str | None:
|
||
|
if self.current_char != '"':
|
||
|
return None
|
||
|
startPos = self.pos
|
||
|
self.pos += 1
|
||
|
escape = False
|
||
|
while True:
|
||
|
if self.eof:
|
||
|
self.fail("Unexpected end during inside string.")
|
||
|
elif self.current_char == '"' and not escape:
|
||
|
self.pos += 1
|
||
|
break
|
||
|
elif self.current_char == '\\':
|
||
|
escape = True
|
||
|
else:
|
||
|
escape = False
|
||
|
self.pos += 1
|
||
|
return self.definition[startPos:self.pos]
|
||
|
|
||
|
def _parse_literal(self) -> ASTLiteral | None:
|
||
|
# -> integer-literal
|
||
|
# | character-literal
|
||
|
# | floating-literal
|
||
|
# | string-literal
|
||
|
# | boolean-literal -> "false" | "true"
|
||
|
self.skip_ws()
|
||
|
if self.skip_word('true'):
|
||
|
return ASTBooleanLiteral(True)
|
||
|
if self.skip_word('false'):
|
||
|
return ASTBooleanLiteral(False)
|
||
|
pos = self.pos
|
||
|
if self.match(float_literal_re):
|
||
|
self.match(float_literal_suffix_re)
|
||
|
return ASTNumberLiteral(self.definition[pos:self.pos])
|
||
|
for regex in [binary_literal_re, hex_literal_re,
|
||
|
integer_literal_re, octal_literal_re]:
|
||
|
if self.match(regex):
|
||
|
self.match(integers_literal_suffix_re)
|
||
|
return ASTNumberLiteral(self.definition[pos:self.pos])
|
||
|
|
||
|
string = self._parse_string()
|
||
|
if string is not None:
|
||
|
return ASTStringLiteral(string)
|
||
|
|
||
|
# character-literal
|
||
|
if self.match(char_literal_re):
|
||
|
prefix = self.last_match.group(1) # may be None when no prefix
|
||
|
data = self.last_match.group(2)
|
||
|
try:
|
||
|
return ASTCharLiteral(prefix, data)
|
||
|
except UnicodeDecodeError as e:
|
||
|
self.fail("Can not handle character literal. Internal error was: %s" % e)
|
||
|
except UnsupportedMultiCharacterCharLiteral:
|
||
|
self.fail("Can not handle character literal"
|
||
|
" resulting in multiple decoded characters.")
|
||
|
return None
|
||
|
|
||
|
def _parse_paren_expression(self) -> ASTExpression | None:
|
||
|
# "(" expression ")"
|
||
|
if self.current_char != '(':
|
||
|
return None
|
||
|
self.pos += 1
|
||
|
res = self._parse_expression()
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail("Expected ')' in end of parenthesized expression.")
|
||
|
return ASTParenExpr(res)
|
||
|
|
||
|
def _parse_primary_expression(self) -> ASTExpression | None:
|
||
|
# literal
|
||
|
# "(" expression ")"
|
||
|
# id-expression -> we parse this with _parse_nested_name
|
||
|
self.skip_ws()
|
||
|
res: ASTExpression | None = self._parse_literal()
|
||
|
if res is not None:
|
||
|
return res
|
||
|
res = self._parse_paren_expression()
|
||
|
if res is not None:
|
||
|
return res
|
||
|
nn = self._parse_nested_name()
|
||
|
if nn is not None:
|
||
|
return ASTIdExpression(nn)
|
||
|
return None
|
||
|
|
||
|
def _parse_initializer_list(self, name: str, open: str, close: str,
|
||
|
) -> tuple[list[ASTExpression], bool]:
|
||
|
# Parse open and close with the actual initializer-list in between
|
||
|
# -> initializer-clause '...'[opt]
|
||
|
# | initializer-list ',' initializer-clause '...'[opt]
|
||
|
# TODO: designators
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string_and_ws(open):
|
||
|
return None, None
|
||
|
if self.skip_string(close):
|
||
|
return [], False
|
||
|
|
||
|
exprs = []
|
||
|
trailingComma = False
|
||
|
while True:
|
||
|
self.skip_ws()
|
||
|
expr = self._parse_expression()
|
||
|
self.skip_ws()
|
||
|
exprs.append(expr)
|
||
|
self.skip_ws()
|
||
|
if self.skip_string(close):
|
||
|
break
|
||
|
if not self.skip_string_and_ws(','):
|
||
|
self.fail(f"Error in {name}, expected ',' or '{close}'.")
|
||
|
if self.current_char == close and close == '}':
|
||
|
self.pos += 1
|
||
|
trailingComma = True
|
||
|
break
|
||
|
return exprs, trailingComma
|
||
|
|
||
|
def _parse_paren_expression_list(self) -> ASTParenExprList | None:
|
||
|
# -> '(' expression-list ')'
|
||
|
# though, we relax it to also allow empty parens
|
||
|
# as it's needed in some cases
|
||
|
#
|
||
|
# expression-list
|
||
|
# -> initializer-list
|
||
|
exprs, trailingComma = self._parse_initializer_list("parenthesized expression-list",
|
||
|
'(', ')')
|
||
|
if exprs is None:
|
||
|
return None
|
||
|
return ASTParenExprList(exprs)
|
||
|
|
||
|
def _parse_braced_init_list(self) -> ASTBracedInitList | None:
|
||
|
# -> '{' initializer-list ','[opt] '}'
|
||
|
# | '{' '}'
|
||
|
exprs, trailingComma = self._parse_initializer_list("braced-init-list", '{', '}')
|
||
|
if exprs is None:
|
||
|
return None
|
||
|
return ASTBracedInitList(exprs, trailingComma)
|
||
|
|
||
|
def _parse_postfix_expression(self) -> ASTPostfixExpr:
|
||
|
# -> primary
|
||
|
# | postfix "[" expression "]"
|
||
|
# | postfix "[" braced-init-list [opt] "]"
|
||
|
# | postfix "(" expression-list [opt] ")"
|
||
|
# | postfix "." id-expression // taken care of in primary by nested name
|
||
|
# | postfix "->" id-expression
|
||
|
# | postfix "++"
|
||
|
# | postfix "--"
|
||
|
|
||
|
prefix = self._parse_primary_expression()
|
||
|
|
||
|
# and now parse postfixes
|
||
|
postFixes: list[ASTPostfixOp] = []
|
||
|
while True:
|
||
|
self.skip_ws()
|
||
|
if self.skip_string_and_ws('['):
|
||
|
expr = self._parse_expression()
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(']'):
|
||
|
self.fail("Expected ']' in end of postfix expression.")
|
||
|
postFixes.append(ASTPostfixArray(expr))
|
||
|
continue
|
||
|
if self.skip_string('->'):
|
||
|
if self.skip_string('*'):
|
||
|
# don't steal the arrow
|
||
|
self.pos -= 3
|
||
|
else:
|
||
|
name = self._parse_nested_name()
|
||
|
postFixes.append(ASTPostfixMemberOfPointer(name))
|
||
|
continue
|
||
|
if self.skip_string('++'):
|
||
|
postFixes.append(ASTPostfixInc())
|
||
|
continue
|
||
|
if self.skip_string('--'):
|
||
|
postFixes.append(ASTPostfixDec())
|
||
|
continue
|
||
|
lst = self._parse_paren_expression_list()
|
||
|
if lst is not None:
|
||
|
postFixes.append(ASTPostfixCallExpr(lst))
|
||
|
continue
|
||
|
break
|
||
|
return ASTPostfixExpr(prefix, postFixes)
|
||
|
|
||
|
def _parse_unary_expression(self) -> ASTExpression:
|
||
|
# -> postfix
|
||
|
# | "++" cast
|
||
|
# | "--" cast
|
||
|
# | unary-operator cast -> (* | & | + | - | ! | ~) cast
|
||
|
# The rest:
|
||
|
# | "sizeof" unary
|
||
|
# | "sizeof" "(" type-id ")"
|
||
|
# | "alignof" "(" type-id ")"
|
||
|
self.skip_ws()
|
||
|
for op in _expression_unary_ops:
|
||
|
# TODO: hmm, should we be able to backtrack here?
|
||
|
if op[0] in 'cn':
|
||
|
res = self.skip_word(op)
|
||
|
else:
|
||
|
res = self.skip_string(op)
|
||
|
if res:
|
||
|
expr = self._parse_cast_expression()
|
||
|
return ASTUnaryOpExpr(op, expr)
|
||
|
if self.skip_word_and_ws('sizeof'):
|
||
|
if self.skip_string_and_ws('('):
|
||
|
typ = self._parse_type(named=False)
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail("Expecting ')' to end 'sizeof'.")
|
||
|
return ASTSizeofType(typ)
|
||
|
expr = self._parse_unary_expression()
|
||
|
return ASTSizeofExpr(expr)
|
||
|
if self.skip_word_and_ws('alignof'):
|
||
|
if not self.skip_string_and_ws('('):
|
||
|
self.fail("Expecting '(' after 'alignof'.")
|
||
|
typ = self._parse_type(named=False)
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail("Expecting ')' to end 'alignof'.")
|
||
|
return ASTAlignofExpr(typ)
|
||
|
return self._parse_postfix_expression()
|
||
|
|
||
|
def _parse_cast_expression(self) -> ASTExpression:
|
||
|
# -> unary | "(" type-id ")" cast
|
||
|
pos = self.pos
|
||
|
self.skip_ws()
|
||
|
if self.skip_string('('):
|
||
|
try:
|
||
|
typ = self._parse_type(False)
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail("Expected ')' in cast expression.")
|
||
|
expr = self._parse_cast_expression()
|
||
|
return ASTCastExpr(typ, expr)
|
||
|
except DefinitionError as exCast:
|
||
|
self.pos = pos
|
||
|
try:
|
||
|
return self._parse_unary_expression()
|
||
|
except DefinitionError as exUnary:
|
||
|
errs = []
|
||
|
errs.append((exCast, "If type cast expression"))
|
||
|
errs.append((exUnary, "If unary expression"))
|
||
|
raise self._make_multi_error(errs,
|
||
|
"Error in cast expression.") from exUnary
|
||
|
else:
|
||
|
return self._parse_unary_expression()
|
||
|
|
||
|
def _parse_logical_or_expression(self) -> ASTExpression:
|
||
|
# logical-or = logical-and ||
|
||
|
# logical-and = inclusive-or &&
|
||
|
# inclusive-or = exclusive-or |
|
||
|
# exclusive-or = and ^
|
||
|
# and = equality &
|
||
|
# equality = relational ==, !=
|
||
|
# relational = shift <, >, <=, >=
|
||
|
# shift = additive <<, >>
|
||
|
# additive = multiplicative +, -
|
||
|
# multiplicative = pm *, /, %
|
||
|
# pm = cast .*, ->*
|
||
|
def _parse_bin_op_expr(self, opId):
|
||
|
if opId + 1 == len(_expression_bin_ops):
|
||
|
def parser() -> ASTExpression:
|
||
|
return self._parse_cast_expression()
|
||
|
else:
|
||
|
def parser() -> ASTExpression:
|
||
|
return _parse_bin_op_expr(self, opId + 1)
|
||
|
exprs = []
|
||
|
ops = []
|
||
|
exprs.append(parser())
|
||
|
while True:
|
||
|
self.skip_ws()
|
||
|
pos = self.pos
|
||
|
oneMore = False
|
||
|
for op in _expression_bin_ops[opId]:
|
||
|
if op[0] in 'abcnox':
|
||
|
if not self.skip_word(op):
|
||
|
continue
|
||
|
else:
|
||
|
if not self.skip_string(op):
|
||
|
continue
|
||
|
if op == '&' and self.current_char == '&':
|
||
|
# don't split the && 'token'
|
||
|
self.pos -= 1
|
||
|
# and btw. && has lower precedence, so we are done
|
||
|
break
|
||
|
try:
|
||
|
expr = parser()
|
||
|
exprs.append(expr)
|
||
|
ops.append(op)
|
||
|
oneMore = True
|
||
|
break
|
||
|
except DefinitionError:
|
||
|
self.pos = pos
|
||
|
if not oneMore:
|
||
|
break
|
||
|
return ASTBinOpExpr(exprs, ops)
|
||
|
return _parse_bin_op_expr(self, 0)
|
||
|
|
||
|
def _parse_conditional_expression_tail(self, orExprHead: Any) -> ASTExpression | None:
|
||
|
# -> "?" expression ":" assignment-expression
|
||
|
return None
|
||
|
|
||
|
def _parse_assignment_expression(self) -> ASTExpression:
|
||
|
# -> conditional-expression
|
||
|
# | logical-or-expression assignment-operator initializer-clause
|
||
|
# -> conditional-expression ->
|
||
|
# logical-or-expression
|
||
|
# | logical-or-expression "?" expression ":" assignment-expression
|
||
|
# | logical-or-expression assignment-operator initializer-clause
|
||
|
exprs = []
|
||
|
ops = []
|
||
|
orExpr = self._parse_logical_or_expression()
|
||
|
exprs.append(orExpr)
|
||
|
# TODO: handle ternary with _parse_conditional_expression_tail
|
||
|
while True:
|
||
|
oneMore = False
|
||
|
self.skip_ws()
|
||
|
for op in _expression_assignment_ops:
|
||
|
if op[0] in 'abcnox':
|
||
|
if not self.skip_word(op):
|
||
|
continue
|
||
|
else:
|
||
|
if not self.skip_string(op):
|
||
|
continue
|
||
|
expr = self._parse_logical_or_expression()
|
||
|
exprs.append(expr)
|
||
|
ops.append(op)
|
||
|
oneMore = True
|
||
|
if not oneMore:
|
||
|
break
|
||
|
return ASTAssignmentExpr(exprs, ops)
|
||
|
|
||
|
def _parse_constant_expression(self) -> ASTExpression:
|
||
|
# -> conditional-expression
|
||
|
orExpr = self._parse_logical_or_expression()
|
||
|
# TODO: use _parse_conditional_expression_tail
|
||
|
return orExpr
|
||
|
|
||
|
def _parse_expression(self) -> ASTExpression:
|
||
|
# -> assignment-expression
|
||
|
# | expression "," assignment-expression
|
||
|
# TODO: actually parse the second production
|
||
|
return self._parse_assignment_expression()
|
||
|
|
||
|
def _parse_expression_fallback(
|
||
|
self, end: list[str],
|
||
|
parser: Callable[[], ASTExpression],
|
||
|
allow: bool = True) -> ASTExpression:
|
||
|
# Stupidly "parse" an expression.
|
||
|
# 'end' should be a list of characters which ends the expression.
|
||
|
|
||
|
# first try to use the provided parser
|
||
|
prevPos = self.pos
|
||
|
try:
|
||
|
return parser()
|
||
|
except DefinitionError as e:
|
||
|
# some places (e.g., template parameters) we really don't want to use fallback,
|
||
|
# and for testing we may want to globally disable it
|
||
|
if not allow or not self.allowFallbackExpressionParsing:
|
||
|
raise
|
||
|
self.warn("Parsing of expression failed. Using fallback parser."
|
||
|
" Error was:\n%s" % e)
|
||
|
self.pos = prevPos
|
||
|
# and then the fallback scanning
|
||
|
assert end is not None
|
||
|
self.skip_ws()
|
||
|
startPos = self.pos
|
||
|
if self.match(_string_re):
|
||
|
value = self.matched_text
|
||
|
else:
|
||
|
# TODO: add handling of more bracket-like things, and quote handling
|
||
|
brackets = {'(': ')', '{': '}', '[': ']'}
|
||
|
symbols: list[str] = []
|
||
|
while not self.eof:
|
||
|
if (len(symbols) == 0 and self.current_char in end):
|
||
|
break
|
||
|
if self.current_char in brackets:
|
||
|
symbols.append(brackets[self.current_char])
|
||
|
elif len(symbols) > 0 and self.current_char == symbols[-1]:
|
||
|
symbols.pop()
|
||
|
self.pos += 1
|
||
|
if len(end) > 0 and self.eof:
|
||
|
self.fail("Could not find end of expression starting at %d."
|
||
|
% startPos)
|
||
|
value = self.definition[startPos:self.pos].strip()
|
||
|
return ASTFallbackExpr(value.strip())
|
||
|
|
||
|
def _parse_nested_name(self) -> ASTNestedName:
|
||
|
names: list[Any] = []
|
||
|
|
||
|
self.skip_ws()
|
||
|
rooted = False
|
||
|
if self.skip_string('.'):
|
||
|
rooted = True
|
||
|
while 1:
|
||
|
self.skip_ws()
|
||
|
if not self.match(identifier_re):
|
||
|
self.fail("Expected identifier in nested name.")
|
||
|
identifier = self.matched_text
|
||
|
# make sure there isn't a keyword
|
||
|
if identifier in _keywords:
|
||
|
self.fail("Expected identifier in nested name, "
|
||
|
"got keyword: %s" % identifier)
|
||
|
if self.matched_text in self.config.c_extra_keywords:
|
||
|
msg = "Expected identifier, got user-defined keyword: %s." \
|
||
|
+ " Remove it from c_extra_keywords to allow it as identifier.\n" \
|
||
|
+ "Currently c_extra_keywords is %s."
|
||
|
self.fail(msg % (self.matched_text,
|
||
|
str(self.config.c_extra_keywords)))
|
||
|
ident = ASTIdentifier(identifier)
|
||
|
names.append(ident)
|
||
|
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string('.'):
|
||
|
break
|
||
|
return ASTNestedName(names, rooted)
|
||
|
|
||
|
def _parse_simple_type_specifier(self) -> str | None:
|
||
|
if self.match(_simple_type_specifiers_re):
|
||
|
return self.matched_text
|
||
|
for t in ('bool', 'complex', 'imaginary'):
|
||
|
if t in self.config.c_extra_keywords:
|
||
|
if self.skip_word(t):
|
||
|
return t
|
||
|
return None
|
||
|
|
||
|
def _parse_simple_type_specifiers(self) -> ASTTrailingTypeSpecFundamental | None:
|
||
|
names: list[str] = []
|
||
|
|
||
|
self.skip_ws()
|
||
|
while True:
|
||
|
t = self._parse_simple_type_specifier()
|
||
|
if t is None:
|
||
|
break
|
||
|
names.append(t)
|
||
|
self.skip_ws()
|
||
|
if len(names) == 0:
|
||
|
return None
|
||
|
return ASTTrailingTypeSpecFundamental(names)
|
||
|
|
||
|
def _parse_trailing_type_spec(self) -> ASTTrailingTypeSpec:
|
||
|
# fundamental types, https://en.cppreference.com/w/c/language/type
|
||
|
# and extensions
|
||
|
self.skip_ws()
|
||
|
res = self._parse_simple_type_specifiers()
|
||
|
if res is not None:
|
||
|
return res
|
||
|
|
||
|
# prefixed
|
||
|
prefix = None
|
||
|
self.skip_ws()
|
||
|
for k in ('struct', 'enum', 'union'):
|
||
|
if self.skip_word_and_ws(k):
|
||
|
prefix = k
|
||
|
break
|
||
|
|
||
|
nestedName = self._parse_nested_name()
|
||
|
return ASTTrailingTypeSpecName(prefix, nestedName)
|
||
|
|
||
|
def _parse_parameters(self, paramMode: str) -> ASTParameters | None:
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string('('):
|
||
|
if paramMode == 'function':
|
||
|
self.fail('Expecting "(" in parameters.')
|
||
|
else:
|
||
|
return None
|
||
|
|
||
|
args = []
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
while 1:
|
||
|
self.skip_ws()
|
||
|
if self.skip_string('...'):
|
||
|
args.append(ASTFunctionParameter(None, True))
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail('Expected ")" after "..." in parameters.')
|
||
|
break
|
||
|
# note: it seems that function arguments can always be named,
|
||
|
# even in function pointers and similar.
|
||
|
arg = self._parse_type_with_init(outer=None, named='single')
|
||
|
# TODO: parse default parameters # TODO: didn't we just do that?
|
||
|
args.append(ASTFunctionParameter(arg))
|
||
|
|
||
|
self.skip_ws()
|
||
|
if self.skip_string(','):
|
||
|
continue
|
||
|
if self.skip_string(')'):
|
||
|
break
|
||
|
self.fail(f'Expecting "," or ")" in parameters, got "{self.current_char}".')
|
||
|
|
||
|
attrs = self._parse_attribute_list()
|
||
|
return ASTParameters(args, attrs)
|
||
|
|
||
|
def _parse_decl_specs_simple(
|
||
|
self, outer: str | None, typed: bool,
|
||
|
) -> ASTDeclSpecsSimple:
|
||
|
"""Just parse the simple ones."""
|
||
|
storage = None
|
||
|
threadLocal = None
|
||
|
inline = None
|
||
|
restrict = None
|
||
|
volatile = None
|
||
|
const = None
|
||
|
attrs = []
|
||
|
while 1: # accept any permutation of a subset of some decl-specs
|
||
|
self.skip_ws()
|
||
|
if not storage:
|
||
|
if outer == 'member':
|
||
|
if self.skip_word('auto'):
|
||
|
storage = 'auto'
|
||
|
continue
|
||
|
if self.skip_word('register'):
|
||
|
storage = 'register'
|
||
|
continue
|
||
|
if outer in ('member', 'function'):
|
||
|
if self.skip_word('static'):
|
||
|
storage = 'static'
|
||
|
continue
|
||
|
if self.skip_word('extern'):
|
||
|
storage = 'extern'
|
||
|
continue
|
||
|
if outer == 'member' and not threadLocal:
|
||
|
if self.skip_word('thread_local'):
|
||
|
threadLocal = 'thread_local'
|
||
|
continue
|
||
|
if self.skip_word('_Thread_local'):
|
||
|
threadLocal = '_Thread_local'
|
||
|
continue
|
||
|
if outer == 'function' and not inline:
|
||
|
inline = self.skip_word('inline')
|
||
|
if inline:
|
||
|
continue
|
||
|
|
||
|
if not restrict and typed:
|
||
|
restrict = self.skip_word('restrict')
|
||
|
if restrict:
|
||
|
continue
|
||
|
if not volatile and typed:
|
||
|
volatile = self.skip_word('volatile')
|
||
|
if volatile:
|
||
|
continue
|
||
|
if not const and typed:
|
||
|
const = self.skip_word('const')
|
||
|
if const:
|
||
|
continue
|
||
|
attr = self._parse_attribute()
|
||
|
if attr:
|
||
|
attrs.append(attr)
|
||
|
continue
|
||
|
break
|
||
|
return ASTDeclSpecsSimple(storage, threadLocal, inline,
|
||
|
restrict, volatile, const, ASTAttributeList(attrs))
|
||
|
|
||
|
def _parse_decl_specs(self, outer: str | None, typed: bool = True) -> ASTDeclSpecs:
|
||
|
if outer:
|
||
|
if outer not in ('type', 'member', 'function'):
|
||
|
raise Exception('Internal error, unknown outer "%s".' % outer)
|
||
|
leftSpecs = self._parse_decl_specs_simple(outer, typed)
|
||
|
rightSpecs = None
|
||
|
|
||
|
if typed:
|
||
|
trailing = self._parse_trailing_type_spec()
|
||
|
rightSpecs = self._parse_decl_specs_simple(outer, typed)
|
||
|
else:
|
||
|
trailing = None
|
||
|
return ASTDeclSpecs(outer, leftSpecs, rightSpecs, trailing)
|
||
|
|
||
|
def _parse_declarator_name_suffix(
|
||
|
self, named: bool | str, paramMode: str, typed: bool,
|
||
|
) -> ASTDeclarator:
|
||
|
assert named in (True, False, 'single')
|
||
|
# now we should parse the name, and then suffixes
|
||
|
if named == 'single':
|
||
|
if self.match(identifier_re):
|
||
|
if self.matched_text in _keywords:
|
||
|
self.fail("Expected identifier, "
|
||
|
"got keyword: %s" % self.matched_text)
|
||
|
if self.matched_text in self.config.c_extra_keywords:
|
||
|
msg = "Expected identifier, got user-defined keyword: %s." \
|
||
|
+ " Remove it from c_extra_keywords to allow it as identifier.\n" \
|
||
|
+ "Currently c_extra_keywords is %s."
|
||
|
self.fail(msg % (self.matched_text,
|
||
|
str(self.config.c_extra_keywords)))
|
||
|
identifier = ASTIdentifier(self.matched_text)
|
||
|
declId = ASTNestedName([identifier], rooted=False)
|
||
|
else:
|
||
|
declId = None
|
||
|
elif named:
|
||
|
declId = self._parse_nested_name()
|
||
|
else:
|
||
|
declId = None
|
||
|
arrayOps = []
|
||
|
while 1:
|
||
|
self.skip_ws()
|
||
|
if typed and self.skip_string('['):
|
||
|
self.skip_ws()
|
||
|
static = False
|
||
|
const = False
|
||
|
volatile = False
|
||
|
restrict = False
|
||
|
while True:
|
||
|
if not static:
|
||
|
if self.skip_word_and_ws('static'):
|
||
|
static = True
|
||
|
continue
|
||
|
if not const:
|
||
|
if self.skip_word_and_ws('const'):
|
||
|
const = True
|
||
|
continue
|
||
|
if not volatile:
|
||
|
if self.skip_word_and_ws('volatile'):
|
||
|
volatile = True
|
||
|
continue
|
||
|
if not restrict:
|
||
|
if self.skip_word_and_ws('restrict'):
|
||
|
restrict = True
|
||
|
continue
|
||
|
break
|
||
|
vla = False if static else self.skip_string_and_ws('*')
|
||
|
if vla:
|
||
|
if not self.skip_string(']'):
|
||
|
self.fail("Expected ']' in end of array operator.")
|
||
|
size = None
|
||
|
else:
|
||
|
if self.skip_string(']'):
|
||
|
size = None
|
||
|
else:
|
||
|
|
||
|
def parser():
|
||
|
return self._parse_expression()
|
||
|
size = self._parse_expression_fallback([']'], parser)
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(']'):
|
||
|
self.fail("Expected ']' in end of array operator.")
|
||
|
arrayOps.append(ASTArray(static, const, volatile, restrict, vla, size))
|
||
|
else:
|
||
|
break
|
||
|
param = self._parse_parameters(paramMode)
|
||
|
if param is None and len(arrayOps) == 0:
|
||
|
# perhaps a bit-field
|
||
|
if named and paramMode == 'type' and typed:
|
||
|
self.skip_ws()
|
||
|
if self.skip_string(':'):
|
||
|
size = self._parse_constant_expression()
|
||
|
return ASTDeclaratorNameBitField(declId=declId, size=size)
|
||
|
return ASTDeclaratorNameParam(declId=declId, arrayOps=arrayOps,
|
||
|
param=param)
|
||
|
|
||
|
def _parse_declarator(self, named: bool | str, paramMode: str,
|
||
|
typed: bool = True) -> ASTDeclarator:
|
||
|
# 'typed' here means 'parse return type stuff'
|
||
|
if paramMode not in ('type', 'function'):
|
||
|
raise Exception(
|
||
|
"Internal error, unknown paramMode '%s'." % paramMode)
|
||
|
prevErrors = []
|
||
|
self.skip_ws()
|
||
|
if typed and self.skip_string('*'):
|
||
|
self.skip_ws()
|
||
|
restrict = False
|
||
|
volatile = False
|
||
|
const = False
|
||
|
attrs = []
|
||
|
while 1:
|
||
|
if not restrict:
|
||
|
restrict = self.skip_word_and_ws('restrict')
|
||
|
if restrict:
|
||
|
continue
|
||
|
if not volatile:
|
||
|
volatile = self.skip_word_and_ws('volatile')
|
||
|
if volatile:
|
||
|
continue
|
||
|
if not const:
|
||
|
const = self.skip_word_and_ws('const')
|
||
|
if const:
|
||
|
continue
|
||
|
attr = self._parse_attribute()
|
||
|
if attr is not None:
|
||
|
attrs.append(attr)
|
||
|
continue
|
||
|
break
|
||
|
next = self._parse_declarator(named, paramMode, typed)
|
||
|
return ASTDeclaratorPtr(next=next,
|
||
|
restrict=restrict, volatile=volatile, const=const,
|
||
|
attrs=ASTAttributeList(attrs))
|
||
|
if typed and self.current_char == '(': # note: peeking, not skipping
|
||
|
# maybe this is the beginning of params, try that first,
|
||
|
# otherwise assume it's noptr->declarator > ( ptr-declarator )
|
||
|
pos = self.pos
|
||
|
try:
|
||
|
# assume this is params
|
||
|
res = self._parse_declarator_name_suffix(named, paramMode,
|
||
|
typed)
|
||
|
return res
|
||
|
except DefinitionError as exParamQual:
|
||
|
msg = "If declarator-id with parameters"
|
||
|
if paramMode == 'function':
|
||
|
msg += " (e.g., 'void f(int arg)')"
|
||
|
prevErrors.append((exParamQual, msg))
|
||
|
self.pos = pos
|
||
|
try:
|
||
|
assert self.current_char == '('
|
||
|
self.skip_string('(')
|
||
|
# TODO: hmm, if there is a name, it must be in inner, right?
|
||
|
# TODO: hmm, if there must be parameters, they must b
|
||
|
# inside, right?
|
||
|
inner = self._parse_declarator(named, paramMode, typed)
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail("Expected ')' in \"( ptr-declarator )\"")
|
||
|
next = self._parse_declarator(named=False,
|
||
|
paramMode="type",
|
||
|
typed=typed)
|
||
|
return ASTDeclaratorParen(inner=inner, next=next)
|
||
|
except DefinitionError as exNoPtrParen:
|
||
|
self.pos = pos
|
||
|
msg = "If parenthesis in noptr-declarator"
|
||
|
if paramMode == 'function':
|
||
|
msg += " (e.g., 'void (*f(int arg))(double)')"
|
||
|
prevErrors.append((exNoPtrParen, msg))
|
||
|
header = "Error in declarator"
|
||
|
raise self._make_multi_error(prevErrors, header) from exNoPtrParen
|
||
|
pos = self.pos
|
||
|
try:
|
||
|
return self._parse_declarator_name_suffix(named, paramMode, typed)
|
||
|
except DefinitionError as e:
|
||
|
self.pos = pos
|
||
|
prevErrors.append((e, "If declarator-id"))
|
||
|
header = "Error in declarator or parameters"
|
||
|
raise self._make_multi_error(prevErrors, header) from e
|
||
|
|
||
|
def _parse_initializer(self, outer: str | None = None, allowFallback: bool = True,
|
||
|
) -> ASTInitializer | None:
|
||
|
self.skip_ws()
|
||
|
if outer == 'member' and False: # NoQA: SIM223 # TODO
|
||
|
bracedInit = self._parse_braced_init_list()
|
||
|
if bracedInit is not None:
|
||
|
return ASTInitializer(bracedInit, hasAssign=False)
|
||
|
|
||
|
if not self.skip_string('='):
|
||
|
return None
|
||
|
|
||
|
bracedInit = self._parse_braced_init_list()
|
||
|
if bracedInit is not None:
|
||
|
return ASTInitializer(bracedInit)
|
||
|
|
||
|
if outer == 'member':
|
||
|
fallbackEnd: list[str] = []
|
||
|
elif outer is None: # function parameter
|
||
|
fallbackEnd = [',', ')']
|
||
|
else:
|
||
|
self.fail("Internal error, initializer for outer '%s' not "
|
||
|
"implemented." % outer)
|
||
|
|
||
|
def parser():
|
||
|
return self._parse_assignment_expression()
|
||
|
|
||
|
value = self._parse_expression_fallback(fallbackEnd, parser, allow=allowFallback)
|
||
|
return ASTInitializer(value)
|
||
|
|
||
|
def _parse_type(self, named: bool | str, outer: str | None = None) -> ASTType:
|
||
|
"""
|
||
|
named=False|'single'|True: 'single' is e.g., for function objects which
|
||
|
doesn't need to name the arguments, but otherwise is a single name
|
||
|
"""
|
||
|
if outer: # always named
|
||
|
if outer not in ('type', 'member', 'function'):
|
||
|
raise Exception('Internal error, unknown outer "%s".' % outer)
|
||
|
assert named
|
||
|
|
||
|
if outer == 'type':
|
||
|
# We allow type objects to just be a name.
|
||
|
prevErrors = []
|
||
|
startPos = self.pos
|
||
|
# first try without the type
|
||
|
try:
|
||
|
declSpecs = self._parse_decl_specs(outer=outer, typed=False)
|
||
|
decl = self._parse_declarator(named=True, paramMode=outer,
|
||
|
typed=False)
|
||
|
self.assert_end(allowSemicolon=True)
|
||
|
except DefinitionError as exUntyped:
|
||
|
desc = "If just a name"
|
||
|
prevErrors.append((exUntyped, desc))
|
||
|
self.pos = startPos
|
||
|
try:
|
||
|
declSpecs = self._parse_decl_specs(outer=outer)
|
||
|
decl = self._parse_declarator(named=True, paramMode=outer)
|
||
|
except DefinitionError as exTyped:
|
||
|
self.pos = startPos
|
||
|
desc = "If typedef-like declaration"
|
||
|
prevErrors.append((exTyped, desc))
|
||
|
# Retain the else branch for easier debugging.
|
||
|
# TODO: it would be nice to save the previous stacktrace
|
||
|
# and output it here.
|
||
|
if True:
|
||
|
header = "Type must be either just a name or a "
|
||
|
header += "typedef-like declaration."
|
||
|
raise self._make_multi_error(prevErrors, header) from exTyped
|
||
|
else: # NoQA: RET506
|
||
|
# For testing purposes.
|
||
|
# do it again to get the proper traceback (how do you
|
||
|
# reliably save a traceback when an exception is
|
||
|
# constructed?)
|
||
|
self.pos = startPos
|
||
|
typed = True
|
||
|
declSpecs = self._parse_decl_specs(outer=outer, typed=typed)
|
||
|
decl = self._parse_declarator(named=True, paramMode=outer,
|
||
|
typed=typed)
|
||
|
elif outer == 'function':
|
||
|
declSpecs = self._parse_decl_specs(outer=outer)
|
||
|
decl = self._parse_declarator(named=True, paramMode=outer)
|
||
|
else:
|
||
|
paramMode = 'type'
|
||
|
if outer == 'member': # i.e., member
|
||
|
named = True
|
||
|
declSpecs = self._parse_decl_specs(outer=outer)
|
||
|
decl = self._parse_declarator(named=named, paramMode=paramMode)
|
||
|
return ASTType(declSpecs, decl)
|
||
|
|
||
|
def _parse_type_with_init(self, named: bool | str, outer: str | None) -> ASTTypeWithInit:
|
||
|
if outer:
|
||
|
assert outer in ('type', 'member', 'function')
|
||
|
type = self._parse_type(outer=outer, named=named)
|
||
|
init = self._parse_initializer(outer=outer)
|
||
|
return ASTTypeWithInit(type, init)
|
||
|
|
||
|
def _parse_macro(self) -> ASTMacro:
|
||
|
self.skip_ws()
|
||
|
ident = self._parse_nested_name()
|
||
|
if ident is None:
|
||
|
self.fail("Expected identifier in macro definition.")
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string_and_ws('('):
|
||
|
return ASTMacro(ident, None)
|
||
|
if self.skip_string(')'):
|
||
|
return ASTMacro(ident, [])
|
||
|
args = []
|
||
|
while 1:
|
||
|
self.skip_ws()
|
||
|
if self.skip_string('...'):
|
||
|
args.append(ASTMacroParameter(None, True))
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail('Expected ")" after "..." in macro parameters.')
|
||
|
break
|
||
|
if not self.match(identifier_re):
|
||
|
self.fail("Expected identifier in macro parameters.")
|
||
|
nn = ASTNestedName([ASTIdentifier(self.matched_text)], rooted=False)
|
||
|
# Allow named variadic args:
|
||
|
# https://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html
|
||
|
self.skip_ws()
|
||
|
if self.skip_string_and_ws('...'):
|
||
|
args.append(ASTMacroParameter(nn, False, True))
|
||
|
self.skip_ws()
|
||
|
if not self.skip_string(')'):
|
||
|
self.fail('Expected ")" after "..." in macro parameters.')
|
||
|
break
|
||
|
args.append(ASTMacroParameter(nn))
|
||
|
if self.skip_string_and_ws(','):
|
||
|
continue
|
||
|
if self.skip_string_and_ws(')'):
|
||
|
break
|
||
|
self.fail("Expected identifier, ')', or ',' in macro parameter list.")
|
||
|
return ASTMacro(ident, args)
|
||
|
|
||
|
def _parse_struct(self) -> ASTStruct:
|
||
|
name = self._parse_nested_name()
|
||
|
return ASTStruct(name)
|
||
|
|
||
|
def _parse_union(self) -> ASTUnion:
|
||
|
name = self._parse_nested_name()
|
||
|
return ASTUnion(name)
|
||
|
|
||
|
def _parse_enum(self) -> ASTEnum:
|
||
|
name = self._parse_nested_name()
|
||
|
return ASTEnum(name)
|
||
|
|
||
|
def _parse_enumerator(self) -> ASTEnumerator:
|
||
|
name = self._parse_nested_name()
|
||
|
attrs = self._parse_attribute_list()
|
||
|
self.skip_ws()
|
||
|
init = None
|
||
|
if self.skip_string('='):
|
||
|
self.skip_ws()
|
||
|
|
||
|
def parser() -> ASTExpression:
|
||
|
return self._parse_constant_expression()
|
||
|
|
||
|
initVal = self._parse_expression_fallback([], parser)
|
||
|
init = ASTInitializer(initVal)
|
||
|
return ASTEnumerator(name, init, attrs)
|
||
|
|
||
|
def parse_declaration(self, objectType: str, directiveType: str) -> ASTDeclaration:
|
||
|
if objectType not in ('function', 'member',
|
||
|
'macro', 'struct', 'union', 'enum', 'enumerator', 'type'):
|
||
|
raise Exception('Internal error, unknown objectType "%s".' % objectType)
|
||
|
if directiveType not in ('function', 'member', 'var',
|
||
|
'macro', 'struct', 'union', 'enum', 'enumerator', 'type'):
|
||
|
raise Exception('Internal error, unknown directiveType "%s".' % directiveType)
|
||
|
|
||
|
declaration: DeclarationType = None
|
||
|
if objectType == 'member':
|
||
|
declaration = self._parse_type_with_init(named=True, outer='member')
|
||
|
elif objectType == 'function':
|
||
|
declaration = self._parse_type(named=True, outer='function')
|
||
|
elif objectType == 'macro':
|
||
|
declaration = self._parse_macro()
|
||
|
elif objectType == 'struct':
|
||
|
declaration = self._parse_struct()
|
||
|
elif objectType == 'union':
|
||
|
declaration = self._parse_union()
|
||
|
elif objectType == 'enum':
|
||
|
declaration = self._parse_enum()
|
||
|
elif objectType == 'enumerator':
|
||
|
declaration = self._parse_enumerator()
|
||
|
elif objectType == 'type':
|
||
|
declaration = self._parse_type(named=True, outer='type')
|
||
|
else:
|
||
|
raise AssertionError
|
||
|
if objectType != 'macro':
|
||
|
self.skip_ws()
|
||
|
semicolon = self.skip_string(';')
|
||
|
else:
|
||
|
semicolon = False
|
||
|
return ASTDeclaration(objectType, directiveType, declaration, semicolon)
|
||
|
|
||
|
def parse_namespace_object(self) -> ASTNestedName:
|
||
|
return self._parse_nested_name()
|
||
|
|
||
|
def parse_xref_object(self) -> ASTNestedName:
|
||
|
name = self._parse_nested_name()
|
||
|
# if there are '()' left, just skip them
|
||
|
self.skip_ws()
|
||
|
self.skip_string('()')
|
||
|
self.assert_end()
|
||
|
return name
|
||
|
|
||
|
def parse_expression(self) -> ASTExpression | ASTType:
|
||
|
pos = self.pos
|
||
|
res: ASTExpression | ASTType = None
|
||
|
try:
|
||
|
res = self._parse_expression()
|
||
|
self.skip_ws()
|
||
|
self.assert_end()
|
||
|
except DefinitionError as exExpr:
|
||
|
self.pos = pos
|
||
|
try:
|
||
|
res = self._parse_type(False)
|
||
|
self.skip_ws()
|
||
|
self.assert_end()
|
||
|
except DefinitionError as exType:
|
||
|
header = "Error when parsing (type) expression."
|
||
|
errs = []
|
||
|
errs.append((exExpr, "If expression"))
|
||
|
errs.append((exType, "If type"))
|
||
|
raise self._make_multi_error(errs, header) from exType
|
||
|
return res
|
||
|
|
||
|
|
||
|
def _make_phony_error_name() -> ASTNestedName:
|
||
|
return ASTNestedName([ASTIdentifier("PhonyNameDueToError")], rooted=False)
|
||
|
|
||
|
|
||
|
class CObject(ObjectDescription[ASTDeclaration]):
|
||
|
"""
|
||
|
Description of a C language object.
|
||
|
"""
|
||
|
|
||
|
option_spec: OptionSpec = {
|
||
|
'no-index-entry': directives.flag,
|
||
|
'no-contents-entry': directives.flag,
|
||
|
'no-typesetting': directives.flag,
|
||
|
'noindexentry': directives.flag,
|
||
|
'nocontentsentry': directives.flag,
|
||
|
'single-line-parameter-list': directives.flag,
|
||
|
}
|
||
|
|
||
|
def _add_enumerator_to_parent(self, ast: ASTDeclaration) -> None:
|
||
|
assert ast.objectType == 'enumerator'
|
||
|
# find the parent, if it exists && is an enum
|
||
|
# then add the name to the parent scope
|
||
|
symbol = ast.symbol
|
||
|
assert symbol
|
||
|
assert symbol.ident is not None
|
||
|
parentSymbol = symbol.parent
|
||
|
assert parentSymbol
|
||
|
if parentSymbol.parent is None:
|
||
|
# TODO: we could warn, but it is somewhat equivalent to
|
||
|
# enumeratorss, without the enum
|
||
|
return # no parent
|
||
|
parentDecl = parentSymbol.declaration
|
||
|
if parentDecl is None:
|
||
|
# the parent is not explicitly declared
|
||
|
# TODO: we could warn, but?
|
||
|
return
|
||
|
if parentDecl.objectType != 'enum':
|
||
|
# TODO: maybe issue a warning, enumerators in non-enums is weird,
|
||
|
# but it is somewhat equivalent to enumeratorss, without the enum
|
||
|
return
|
||
|
if parentDecl.directiveType != 'enum':
|
||
|
return
|
||
|
|
||
|
targetSymbol = parentSymbol.parent
|
||
|
s = targetSymbol.find_identifier(symbol.ident, matchSelf=False, recurseInAnon=True,
|
||
|
searchInSiblings=False)
|
||
|
if s is not None:
|
||
|
# something is already declared with that name
|
||
|
return
|
||
|
declClone = symbol.declaration.clone()
|
||
|
declClone.enumeratorScopedSymbol = symbol
|
||
|
Symbol(parent=targetSymbol, ident=symbol.ident,
|
||
|
declaration=declClone,
|
||
|
docname=self.env.docname, line=self.get_source_info()[1])
|
||
|
|
||
|
def add_target_and_index(self, ast: ASTDeclaration, sig: str,
|
||
|
signode: TextElement) -> None:
|
||
|
ids = []
|
||
|
for i in range(1, _max_id + 1):
|
||
|
try:
|
||
|
id = ast.get_id(version=i)
|
||
|
ids.append(id)
|
||
|
except NoOldIdError:
|
||
|
assert i < _max_id
|
||
|
# let's keep the newest first
|
||
|
ids = list(reversed(ids))
|
||
|
newestId = ids[0]
|
||
|
assert newestId # shouldn't be None
|
||
|
|
||
|
name = ast.symbol.get_full_nested_name().get_display_string().lstrip('.')
|
||
|
if newestId not in self.state.document.ids:
|
||
|
# always add the newest id
|
||
|
assert newestId
|
||
|
signode['ids'].append(newestId)
|
||
|
# only add compatibility ids when there are no conflicts
|
||
|
for id in ids[1:]:
|
||
|
if not id: # is None when the element didn't exist in that version
|
||
|
continue
|
||
|
if id not in self.state.document.ids:
|
||
|
signode['ids'].append(id)
|
||
|
|
||
|
self.state.document.note_explicit_target(signode)
|
||
|
|
||
|
if 'no-index-entry' not in self.options:
|
||
|
indexText = self.get_index_text(name)
|
||
|
self.indexnode['entries'].append(('single', indexText, newestId, '', None))
|
||
|
|
||
|
@property
|
||
|
def object_type(self) -> str:
|
||
|
raise NotImplementedError
|
||
|
|
||
|
@property
|
||
|
def display_object_type(self) -> str:
|
||
|
return self.object_type
|
||
|
|
||
|
def get_index_text(self, name: str) -> str:
|
||
|
return _('%s (C %s)') % (name, self.display_object_type)
|
||
|
|
||
|
def parse_definition(self, parser: DefinitionParser) -> ASTDeclaration:
|
||
|
return parser.parse_declaration(self.object_type, self.objtype)
|
||
|
|
||
|
def describe_signature(self, signode: TextElement, ast: ASTDeclaration,
|
||
|
options: dict) -> None:
|
||
|
ast.describe_signature(signode, 'lastIsName', self.env, options)
|
||
|
|
||
|
def run(self) -> list[Node]:
|
||
|
env = self.state.document.settings.env # from ObjectDescription.run
|
||
|
if 'c:parent_symbol' not in env.temp_data:
|
||
|
root = env.domaindata['c']['root_symbol']
|
||
|
env.temp_data['c:parent_symbol'] = root
|
||
|
env.ref_context['c:parent_key'] = root.get_lookup_key()
|
||
|
|
||
|
# When multiple declarations are made in the same directive
|
||
|
# they need to know about each other to provide symbol lookup for function parameters.
|
||
|
# We use last_symbol to store the latest added declaration in a directive.
|
||
|
env.temp_data['c:last_symbol'] = None
|
||
|
return super().run()
|
||
|
|
||
|
def handle_signature(self, sig: str, signode: TextElement) -> ASTDeclaration:
|
||
|
parentSymbol: Symbol = self.env.temp_data['c:parent_symbol']
|
||
|
|
||
|
max_len = (self.env.config.c_maximum_signature_line_length
|
||
|
or self.env.config.maximum_signature_line_length
|
||
|
or 0)
|
||
|
signode['multi_line_parameter_list'] = (
|
||
|
'single-line-parameter-list' not in self.options
|
||
|
and (len(sig) > max_len > 0)
|
||
|
)
|
||
|
|
||
|
parser = DefinitionParser(sig, location=signode, config=self.env.config)
|
||
|
try:
|
||
|
ast = self.parse_definition(parser)
|
||
|
parser.assert_end()
|
||
|
except DefinitionError as e:
|
||
|
logger.warning(e, location=signode)
|
||
|
# It is easier to assume some phony name than handling the error in
|
||
|
# the possibly inner declarations.
|
||
|
name = _make_phony_error_name()
|
||
|
symbol = parentSymbol.add_name(name)
|
||
|
self.env.temp_data['c:last_symbol'] = symbol
|
||
|
raise ValueError from e
|
||
|
|
||
|
try:
|
||
|
symbol = parentSymbol.add_declaration(
|
||
|
ast, docname=self.env.docname, line=self.get_source_info()[1])
|
||
|
# append the new declaration to the sibling list
|
||
|
assert symbol.siblingAbove is None
|
||
|
assert symbol.siblingBelow is None
|
||
|
symbol.siblingAbove = self.env.temp_data['c:last_symbol']
|
||
|
if symbol.siblingAbove is not None:
|
||
|
assert symbol.siblingAbove.siblingBelow is None
|
||
|
symbol.siblingAbove.siblingBelow = symbol
|
||
|
self.env.temp_data['c:last_symbol'] = symbol
|
||
|
except _DuplicateSymbolError as e:
|
||
|
# Assume we are actually in the old symbol,
|
||
|
# instead of the newly created duplicate.
|
||
|
self.env.temp_data['c:last_symbol'] = e.symbol
|
||
|
msg = __("Duplicate C declaration, also defined at %s:%s.\n"
|
||
|
"Declaration is '.. c:%s:: %s'.")
|
||
|
msg = msg % (e.symbol.docname, e.symbol.line, self.display_object_type, sig)
|
||
|
logger.warning(msg, location=signode)
|
||
|
|
||
|
if ast.objectType == 'enumerator':
|
||
|
self._add_enumerator_to_parent(ast)
|
||
|
|
||
|
# note: handle_signature may be called multiple time per directive,
|
||
|
# if it has multiple signatures, so don't mess with the original options.
|
||
|
options = dict(self.options)
|
||
|
self.describe_signature(signode, ast, options)
|
||
|
return ast
|
||
|
|
||
|
def before_content(self) -> None:
|
||
|
lastSymbol: Symbol = self.env.temp_data['c:last_symbol']
|
||
|
assert lastSymbol
|
||
|
self.oldParentSymbol = self.env.temp_data['c:parent_symbol']
|
||
|
self.oldParentKey: LookupKey = self.env.ref_context['c:parent_key']
|
||
|
self.env.temp_data['c:parent_symbol'] = lastSymbol
|
||
|
self.env.ref_context['c:parent_key'] = lastSymbol.get_lookup_key()
|
||
|
|
||
|
def after_content(self) -> None:
|
||
|
self.env.temp_data['c:parent_symbol'] = self.oldParentSymbol
|
||
|
self.env.ref_context['c:parent_key'] = self.oldParentKey
|
||
|
|
||
|
|
||
|
class CMemberObject(CObject):
|
||
|
object_type = 'member'
|
||
|
|
||
|
@property
|
||
|
def display_object_type(self) -> str:
|
||
|
# the distinction between var and member is only cosmetic
|
||
|
assert self.objtype in ('member', 'var')
|
||
|
return self.objtype
|
||
|
|
||
|
|
||
|
_function_doc_field_types = [
|
||
|
TypedField('parameter', label=_('Parameters'),
|
||
|
names=('param', 'parameter', 'arg', 'argument'),
|
||
|
typerolename='expr', typenames=('type',)),
|
||
|
GroupedField('retval', label=_('Return values'),
|
||
|
names=('retvals', 'retval'),
|
||
|
can_collapse=True),
|
||
|
Field('returnvalue', label=_('Returns'), has_arg=False,
|
||
|
names=('returns', 'return')),
|
||
|
Field('returntype', label=_('Return type'), has_arg=False,
|
||
|
names=('rtype',)),
|
||
|
]
|
||
|
|
||
|
|
||
|
class CFunctionObject(CObject):
|
||
|
object_type = 'function'
|
||
|
|
||
|
doc_field_types = _function_doc_field_types.copy()
|
||
|
|
||
|
|
||
|
class CMacroObject(CObject):
|
||
|
object_type = 'macro'
|
||
|
|
||
|
doc_field_types = _function_doc_field_types.copy()
|
||
|
|
||
|
|
||
|
class CStructObject(CObject):
|
||
|
object_type = 'struct'
|
||
|
|
||
|
|
||
|
class CUnionObject(CObject):
|
||
|
object_type = 'union'
|
||
|
|
||
|
|
||
|
class CEnumObject(CObject):
|
||
|
object_type = 'enum'
|
||
|
|
||
|
|
||
|
class CEnumeratorObject(CObject):
|
||
|
object_type = 'enumerator'
|
||
|
|
||
|
|
||
|
class CTypeObject(CObject):
|
||
|
object_type = 'type'
|
||
|
|
||
|
|
||
|
class CNamespaceObject(SphinxDirective):
|
||
|
"""
|
||
|
This directive is just to tell Sphinx that we're documenting stuff in
|
||
|
namespace foo.
|
||
|
"""
|
||
|
|
||
|
has_content = False
|
||
|
required_arguments = 1
|
||
|
optional_arguments = 0
|
||
|
final_argument_whitespace = True
|
||
|
option_spec: OptionSpec = {}
|
||
|
|
||
|
def run(self) -> list[Node]:
|
||
|
rootSymbol = self.env.domaindata['c']['root_symbol']
|
||
|
if self.arguments[0].strip() in ('NULL', '0', 'nullptr'):
|
||
|
symbol = rootSymbol
|
||
|
stack: list[Symbol] = []
|
||
|
else:
|
||
|
parser = DefinitionParser(self.arguments[0],
|
||
|
location=self.get_location(),
|
||
|
config=self.env.config)
|
||
|
try:
|
||
|
name = parser.parse_namespace_object()
|
||
|
parser.assert_end()
|
||
|
except DefinitionError as e:
|
||
|
logger.warning(e, location=self.get_location())
|
||
|
name = _make_phony_error_name()
|
||
|
symbol = rootSymbol.add_name(name)
|
||
|
stack = [symbol]
|
||
|
self.env.temp_data['c:parent_symbol'] = symbol
|
||
|
self.env.temp_data['c:namespace_stack'] = stack
|
||
|
self.env.ref_context['c:parent_key'] = symbol.get_lookup_key()
|
||
|
return []
|
||
|
|
||
|
|
||
|
class CNamespacePushObject(SphinxDirective):
|
||
|
has_content = False
|
||
|
required_arguments = 1
|
||
|
optional_arguments = 0
|
||
|
final_argument_whitespace = True
|
||
|
option_spec: OptionSpec = {}
|
||
|
|
||
|
def run(self) -> list[Node]:
|
||
|
if self.arguments[0].strip() in ('NULL', '0', 'nullptr'):
|
||
|
return []
|
||
|
parser = DefinitionParser(self.arguments[0],
|
||
|
location=self.get_location(),
|
||
|
config=self.env.config)
|
||
|
try:
|
||
|
name = parser.parse_namespace_object()
|
||
|
parser.assert_end()
|
||
|
except DefinitionError as e:
|
||
|
logger.warning(e, location=self.get_location())
|
||
|
name = _make_phony_error_name()
|
||
|
oldParent = self.env.temp_data.get('c:parent_symbol', None)
|
||
|
if not oldParent:
|
||
|
oldParent = self.env.domaindata['c']['root_symbol']
|
||
|
symbol = oldParent.add_name(name)
|
||
|
stack = self.env.temp_data.get('c:namespace_stack', [])
|
||
|
stack.append(symbol)
|
||
|
self.env.temp_data['c:parent_symbol'] = symbol
|
||
|
self.env.temp_data['c:namespace_stack'] = stack
|
||
|
self.env.ref_context['c:parent_key'] = symbol.get_lookup_key()
|
||
|
return []
|
||
|
|
||
|
|
||
|
class CNamespacePopObject(SphinxDirective):
|
||
|
has_content = False
|
||
|
required_arguments = 0
|
||
|
optional_arguments = 0
|
||
|
final_argument_whitespace = True
|
||
|
option_spec: OptionSpec = {}
|
||
|
|
||
|
def run(self) -> list[Node]:
|
||
|
stack = self.env.temp_data.get('c:namespace_stack', None)
|
||
|
if not stack or len(stack) == 0:
|
||
|
logger.warning("C namespace pop on empty stack. Defaulting to global scope.",
|
||
|
location=self.get_location())
|
||
|
stack = []
|
||
|
else:
|
||
|
stack.pop()
|
||
|
if len(stack) > 0:
|
||
|
symbol = stack[-1]
|
||
|
else:
|
||
|
symbol = self.env.domaindata['c']['root_symbol']
|
||
|
self.env.temp_data['c:parent_symbol'] = symbol
|
||
|
self.env.temp_data['c:namespace_stack'] = stack
|
||
|
self.env.ref_context['cp:parent_key'] = symbol.get_lookup_key()
|
||
|
return []
|
||
|
|
||
|
|
||
|
class AliasNode(nodes.Element):
|
||
|
def __init__(
|
||
|
self,
|
||
|
sig: str,
|
||
|
aliasOptions: dict,
|
||
|
document: Any,
|
||
|
env: BuildEnvironment | None = None,
|
||
|
parentKey: LookupKey | None = None,
|
||
|
) -> None:
|
||
|
super().__init__()
|
||
|
self.sig = sig
|
||
|
self.aliasOptions = aliasOptions
|
||
|
self.document = document
|
||
|
if env is not None:
|
||
|
if 'c:parent_symbol' not in env.temp_data:
|
||
|
root = env.domaindata['c']['root_symbol']
|
||
|
env.temp_data['c:parent_symbol'] = root
|
||
|
env.ref_context['c:parent_key'] = root.get_lookup_key()
|
||
|
self.parentKey = env.ref_context['c:parent_key']
|
||
|
else:
|
||
|
assert parentKey is not None
|
||
|
self.parentKey = parentKey
|
||
|
|
||
|
def copy(self) -> AliasNode:
|
||
|
return self.__class__(self.sig, self.aliasOptions, self.document,
|
||
|
env=None, parentKey=self.parentKey)
|
||
|
|
||
|
|
||
|
class AliasTransform(SphinxTransform):
|
||
|
default_priority = ReferencesResolver.default_priority - 1
|
||
|
|
||
|
def _render_symbol(self, s: Symbol, maxdepth: int, skipThis: bool,
|
||
|
aliasOptions: dict, renderOptions: dict,
|
||
|
document: Any) -> list[Node]:
|
||
|
if maxdepth == 0:
|
||
|
recurse = True
|
||
|
elif maxdepth == 1:
|
||
|
recurse = False
|
||
|
else:
|
||
|
maxdepth -= 1
|
||
|
recurse = True
|
||
|
|
||
|
nodes: list[Node] = []
|
||
|
if not skipThis:
|
||
|
signode = addnodes.desc_signature('', '')
|
||
|
nodes.append(signode)
|
||
|
s.declaration.describe_signature(signode, 'markName', self.env, renderOptions)
|
||
|
|
||
|
if recurse:
|
||
|
if skipThis:
|
||
|
childContainer: list[Node] | addnodes.desc = nodes
|
||
|
else:
|
||
|
content = addnodes.desc_content()
|
||
|
desc = addnodes.desc()
|
||
|
content.append(desc)
|
||
|
desc.document = document
|
||
|
desc['domain'] = 'c'
|
||
|
# 'desctype' is a backwards compatible attribute
|
||
|
desc['objtype'] = desc['desctype'] = 'alias'
|
||
|
desc['no-index'] = True
|
||
|
childContainer = desc
|
||
|
|
||
|
for sChild in s.children:
|
||
|
if sChild.declaration is None:
|
||
|
continue
|
||
|
childNodes = self._render_symbol(
|
||
|
sChild, maxdepth=maxdepth, skipThis=False,
|
||
|
aliasOptions=aliasOptions, renderOptions=renderOptions,
|
||
|
document=document)
|
||
|
childContainer.extend(childNodes)
|
||
|
|
||
|
if not skipThis and len(desc.children) != 0:
|
||
|
nodes.append(content)
|
||
|
return nodes
|
||
|
|
||
|
def apply(self, **kwargs: Any) -> None:
|
||
|
for node in self.document.findall(AliasNode):
|
||
|
sig = node.sig
|
||
|
parentKey = node.parentKey
|
||
|
try:
|
||
|
parser = DefinitionParser(sig, location=node,
|
||
|
config=self.env.config)
|
||
|
name = parser.parse_xref_object()
|
||
|
except DefinitionError as e:
|
||
|
logger.warning(e, location=node)
|
||
|
name = None
|
||
|
|
||
|
if name is None:
|
||
|
# could not be parsed, so stop here
|
||
|
signode = addnodes.desc_signature(sig, '')
|
||
|
signode.clear()
|
||
|
signode += addnodes.desc_name(sig, sig)
|
||
|
node.replace_self(signode)
|
||
|
continue
|
||
|
|
||
|
rootSymbol: Symbol = self.env.domains['c'].data['root_symbol']
|
||
|
parentSymbol: Symbol = rootSymbol.direct_lookup(parentKey)
|
||
|
if not parentSymbol:
|
||
|
logger.debug("Target: %s", sig)
|
||
|
logger.debug("ParentKey: %s", parentKey)
|
||
|
logger.debug(rootSymbol.dump(1))
|
||
|
assert parentSymbol # should be there
|
||
|
|
||
|
s = parentSymbol.find_declaration(
|
||
|
name, 'any',
|
||
|
matchSelf=True, recurseInAnon=True)
|
||
|
if s is None:
|
||
|
signode = addnodes.desc_signature(sig, '')
|
||
|
node.append(signode)
|
||
|
signode.clear()
|
||
|
signode += addnodes.desc_name(sig, sig)
|
||
|
|
||
|
logger.warning("Could not find C declaration for alias '%s'." % name,
|
||
|
location=node)
|
||
|
node.replace_self(signode)
|
||
|
continue
|
||
|
# Declarations like .. var:: int Missing::var
|
||
|
# may introduce symbols without declarations.
|
||
|
# But if we skip the root then it is ok to start recursion from it.
|
||
|
if not node.aliasOptions['noroot'] and s.declaration is None:
|
||
|
signode = addnodes.desc_signature(sig, '')
|
||
|
node.append(signode)
|
||
|
signode.clear()
|
||
|
signode += addnodes.desc_name(sig, sig)
|
||
|
|
||
|
logger.warning(
|
||
|
"Can not render C declaration for alias '%s'. No such declaration." % name,
|
||
|
location=node)
|
||
|
node.replace_self(signode)
|
||
|
continue
|
||
|
|
||
|
nodes = self._render_symbol(s, maxdepth=node.aliasOptions['maxdepth'],
|
||
|
skipThis=node.aliasOptions['noroot'],
|
||
|
aliasOptions=node.aliasOptions,
|
||
|
renderOptions={}, document=node.document)
|
||
|
node.replace_self(nodes)
|
||
|
|
||
|
|
||
|
class CAliasObject(ObjectDescription):
|
||
|
option_spec: OptionSpec = {
|
||
|
'maxdepth': directives.nonnegative_int,
|
||
|
'noroot': directives.flag,
|
||
|
}
|
||
|
|
||
|
def run(self) -> list[Node]:
|
||
|
"""
|
||
|
On purpose this doesn't call the ObjectDescription version, but is based on it.
|
||
|
Each alias signature may expand into multiple real signatures if 'noroot'.
|
||
|
The code is therefore based on the ObjectDescription version.
|
||
|
"""
|
||
|
if ':' in self.name:
|
||
|
self.domain, self.objtype = self.name.split(':', 1)
|
||
|
else:
|
||
|
self.domain, self.objtype = '', self.name
|
||
|
|
||
|
node = addnodes.desc()
|
||
|
node.document = self.state.document
|
||
|
node['domain'] = self.domain
|
||
|
# 'desctype' is a backwards compatible attribute
|
||
|
node['objtype'] = node['desctype'] = self.objtype
|
||
|
node['no-index'] = True
|
||
|
|
||
|
self.names: list[str] = []
|
||
|
aliasOptions = {
|
||
|
'maxdepth': self.options.get('maxdepth', 1),
|
||
|
'noroot': 'noroot' in self.options,
|
||
|
}
|
||
|
if aliasOptions['noroot'] and aliasOptions['maxdepth'] == 1:
|
||
|
logger.warning("Error in C alias declaration."
|
||
|
" Requested 'noroot' but 'maxdepth' 1."
|
||
|
" When skipping the root declaration,"
|
||
|
" need 'maxdepth' 0 for infinite or at least 2.",
|
||
|
location=self.get_location())
|
||
|
for sig in self.get_signatures():
|
||
|
node.append(AliasNode(sig, aliasOptions, self.state.document, env=self.env))
|
||
|
return [node]
|
||
|
|
||
|
|
||
|
class CXRefRole(XRefRole):
|
||
|
def process_link(self, env: BuildEnvironment, refnode: Element,
|
||
|
has_explicit_title: bool, title: str, target: str) -> tuple[str, str]:
|
||
|
refnode.attributes.update(env.ref_context)
|
||
|
|
||
|
if not has_explicit_title:
|
||
|
# major hax: replace anon names via simple string manipulation.
|
||
|
# Can this actually fail?
|
||
|
title = anon_identifier_re.sub("[anonymous]", str(title))
|
||
|
|
||
|
if not has_explicit_title:
|
||
|
target = target.lstrip('~') # only has a meaning for the title
|
||
|
# if the first character is a tilde, don't display the module/class
|
||
|
# parts of the contents
|
||
|
if title[0:1] == '~':
|
||
|
title = title[1:]
|
||
|
dot = title.rfind('.')
|
||
|
if dot != -1:
|
||
|
title = title[dot + 1:]
|
||
|
return title, target
|
||
|
|
||
|
|
||
|
class CExprRole(SphinxRole):
|
||
|
def __init__(self, asCode: bool) -> None:
|
||
|
super().__init__()
|
||
|
if asCode:
|
||
|
# render the expression as inline code
|
||
|
self.class_type = 'c-expr'
|
||
|
else:
|
||
|
# render the expression as inline text
|
||
|
self.class_type = 'c-texpr'
|
||
|
|
||
|
def run(self) -> tuple[list[Node], list[system_message]]:
|
||
|
text = self.text.replace('\n', ' ')
|
||
|
parser = DefinitionParser(text, location=self.get_location(),
|
||
|
config=self.env.config)
|
||
|
# attempt to mimic XRefRole classes, except that...
|
||
|
try:
|
||
|
ast = parser.parse_expression()
|
||
|
except DefinitionError as ex:
|
||
|
logger.warning('Unparseable C expression: %r\n%s', text, ex,
|
||
|
location=self.get_location())
|
||
|
# see below
|
||
|
return [addnodes.desc_inline('c', text, text, classes=[self.class_type])], []
|
||
|
parentSymbol = self.env.temp_data.get('c:parent_symbol', None)
|
||
|
if parentSymbol is None:
|
||
|
parentSymbol = self.env.domaindata['c']['root_symbol']
|
||
|
# ...most if not all of these classes should really apply to the individual references,
|
||
|
# not the container node
|
||
|
signode = addnodes.desc_inline('c', classes=[self.class_type])
|
||
|
ast.describe_signature(signode, 'markType', self.env, parentSymbol)
|
||
|
return [signode], []
|
||
|
|
||
|
|
||
|
class CDomain(Domain):
|
||
|
"""C language domain."""
|
||
|
name = 'c'
|
||
|
label = 'C'
|
||
|
object_types = {
|
||
|
# 'identifier' is the one used for xrefs generated in signatures, not in roles
|
||
|
'member': ObjType(_('member'), 'var', 'member', 'data', 'identifier'),
|
||
|
'var': ObjType(_('variable'), 'var', 'member', 'data', 'identifier'),
|
||
|
'function': ObjType(_('function'), 'func', 'identifier', 'type'),
|
||
|
'macro': ObjType(_('macro'), 'macro', 'identifier'),
|
||
|
'struct': ObjType(_('struct'), 'struct', 'identifier', 'type'),
|
||
|
'union': ObjType(_('union'), 'union', 'identifier', 'type'),
|
||
|
'enum': ObjType(_('enum'), 'enum', 'identifier', 'type'),
|
||
|
'enumerator': ObjType(_('enumerator'), 'enumerator', 'identifier'),
|
||
|
'type': ObjType(_('type'), 'identifier', 'type'),
|
||
|
# generated object types
|
||
|
'functionParam': ObjType(_('function parameter'), 'identifier', 'var', 'member', 'data'), # noqa: E501
|
||
|
}
|
||
|
|
||
|
directives = {
|
||
|
'member': CMemberObject,
|
||
|
'var': CMemberObject,
|
||
|
'function': CFunctionObject,
|
||
|
'macro': CMacroObject,
|
||
|
'struct': CStructObject,
|
||
|
'union': CUnionObject,
|
||
|
'enum': CEnumObject,
|
||
|
'enumerator': CEnumeratorObject,
|
||
|
'type': CTypeObject,
|
||
|
# scope control
|
||
|
'namespace': CNamespaceObject,
|
||
|
'namespace-push': CNamespacePushObject,
|
||
|
'namespace-pop': CNamespacePopObject,
|
||
|
# other
|
||
|
'alias': CAliasObject,
|
||
|
}
|
||
|
roles = {
|
||
|
'member': CXRefRole(),
|
||
|
'data': CXRefRole(),
|
||
|
'var': CXRefRole(),
|
||
|
'func': CXRefRole(fix_parens=True),
|
||
|
'macro': CXRefRole(),
|
||
|
'struct': CXRefRole(),
|
||
|
'union': CXRefRole(),
|
||
|
'enum': CXRefRole(),
|
||
|
'enumerator': CXRefRole(),
|
||
|
'type': CXRefRole(),
|
||
|
'expr': CExprRole(asCode=True),
|
||
|
'texpr': CExprRole(asCode=False),
|
||
|
}
|
||
|
initial_data: dict[str, Symbol | dict[str, tuple[str, str, str]]] = {
|
||
|
'root_symbol': Symbol(None, None, None, None, None),
|
||
|
'objects': {}, # fullname -> docname, node_id, objtype
|
||
|
}
|
||
|
|
||
|
def clear_doc(self, docname: str) -> None:
|
||
|
if Symbol.debug_show_tree:
|
||
|
logger.debug("clear_doc: %s", docname)
|
||
|
logger.debug("\tbefore:")
|
||
|
logger.debug(self.data['root_symbol'].dump(1))
|
||
|
logger.debug("\tbefore end")
|
||
|
|
||
|
rootSymbol = self.data['root_symbol']
|
||
|
rootSymbol.clear_doc(docname)
|
||
|
|
||
|
if Symbol.debug_show_tree:
|
||
|
logger.debug("\tafter:")
|
||
|
logger.debug(self.data['root_symbol'].dump(1))
|
||
|
logger.debug("\tafter end")
|
||
|
logger.debug("clear_doc end: %s", docname)
|
||
|
|
||
|
def process_doc(self, env: BuildEnvironment, docname: str,
|
||
|
document: nodes.document) -> None:
|
||
|
if Symbol.debug_show_tree:
|
||
|
logger.debug("process_doc: %s", docname)
|
||
|
logger.debug(self.data['root_symbol'].dump(0))
|
||
|
logger.debug("process_doc end: %s", docname)
|
||
|
|
||
|
def process_field_xref(self, pnode: pending_xref) -> None:
|
||
|
pnode.attributes.update(self.env.ref_context)
|
||
|
|
||
|
def merge_domaindata(self, docnames: list[str], otherdata: dict) -> None:
|
||
|
if Symbol.debug_show_tree:
|
||
|
logger.debug("merge_domaindata:")
|
||
|
logger.debug("\tself:")
|
||
|
logger.debug(self.data['root_symbol'].dump(1))
|
||
|
logger.debug("\tself end")
|
||
|
logger.debug("\tother:")
|
||
|
logger.debug(otherdata['root_symbol'].dump(1))
|
||
|
logger.debug("\tother end")
|
||
|
logger.debug("merge_domaindata end")
|
||
|
|
||
|
self.data['root_symbol'].merge_with(otherdata['root_symbol'],
|
||
|
docnames, self.env)
|
||
|
ourObjects = self.data['objects']
|
||
|
for fullname, (fn, id_, objtype) in otherdata['objects'].items():
|
||
|
if fn in docnames:
|
||
|
if fullname not in ourObjects:
|
||
|
ourObjects[fullname] = (fn, id_, objtype)
|
||
|
# no need to warn on duplicates, the symbol merge already does that
|
||
|
|
||
|
def _resolve_xref_inner(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
|
||
|
typ: str, target: str, node: pending_xref,
|
||
|
contnode: Element) -> tuple[Element | None, str | None]:
|
||
|
parser = DefinitionParser(target, location=node, config=env.config)
|
||
|
try:
|
||
|
name = parser.parse_xref_object()
|
||
|
except DefinitionError as e:
|
||
|
logger.warning('Unparseable C cross-reference: %r\n%s', target, e,
|
||
|
location=node)
|
||
|
return None, None
|
||
|
parentKey: LookupKey = node.get("c:parent_key", None)
|
||
|
rootSymbol = self.data['root_symbol']
|
||
|
if parentKey:
|
||
|
parentSymbol: Symbol = rootSymbol.direct_lookup(parentKey)
|
||
|
if not parentSymbol:
|
||
|
logger.debug("Target: %s", target)
|
||
|
logger.debug("ParentKey: %s", parentKey)
|
||
|
logger.debug(rootSymbol.dump(1))
|
||
|
assert parentSymbol # should be there
|
||
|
else:
|
||
|
parentSymbol = rootSymbol
|
||
|
s = parentSymbol.find_declaration(name, typ,
|
||
|
matchSelf=True, recurseInAnon=True)
|
||
|
if s is None or s.declaration is None:
|
||
|
return None, None
|
||
|
|
||
|
# TODO: check role type vs. object type
|
||
|
|
||
|
declaration = s.declaration
|
||
|
displayName = name.get_display_string()
|
||
|
docname = s.docname
|
||
|
assert docname
|
||
|
|
||
|
return make_refnode(builder, fromdocname, docname,
|
||
|
declaration.get_newest_id(), contnode, displayName,
|
||
|
), declaration.objectType
|
||
|
|
||
|
def resolve_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
|
||
|
typ: str, target: str, node: pending_xref,
|
||
|
contnode: Element) -> Element | None:
|
||
|
return self._resolve_xref_inner(env, fromdocname, builder, typ,
|
||
|
target, node, contnode)[0]
|
||
|
|
||
|
def resolve_any_xref(self, env: BuildEnvironment, fromdocname: str, builder: Builder,
|
||
|
target: str, node: pending_xref, contnode: Element,
|
||
|
) -> list[tuple[str, Element]]:
|
||
|
with logging.suppress_logging():
|
||
|
retnode, objtype = self._resolve_xref_inner(env, fromdocname, builder,
|
||
|
'any', target, node, contnode)
|
||
|
if retnode:
|
||
|
return [('c:' + self.role_for_objtype(objtype), retnode)]
|
||
|
return []
|
||
|
|
||
|
def get_objects(self) -> Iterator[tuple[str, str, str, str, str, int]]:
|
||
|
rootSymbol = self.data['root_symbol']
|
||
|
for symbol in rootSymbol.get_all_symbols():
|
||
|
if symbol.declaration is None:
|
||
|
continue
|
||
|
assert symbol.docname
|
||
|
fullNestedName = symbol.get_full_nested_name()
|
||
|
name = str(fullNestedName).lstrip('.')
|
||
|
dispname = fullNestedName.get_display_string().lstrip('.')
|
||
|
objectType = symbol.declaration.objectType
|
||
|
docname = symbol.docname
|
||
|
newestId = symbol.declaration.get_newest_id()
|
||
|
yield (name, dispname, objectType, docname, newestId, 1)
|
||
|
|
||
|
|
||
|
def setup(app: Sphinx) -> dict[str, Any]:
|
||
|
app.add_domain(CDomain)
|
||
|
app.add_config_value("c_id_attributes", [], 'env')
|
||
|
app.add_config_value("c_paren_attributes", [], 'env')
|
||
|
app.add_config_value("c_extra_keywords", _macroKeywords, 'env')
|
||
|
app.add_config_value("c_maximum_signature_line_length", None, 'env', types={int, None})
|
||
|
app.add_post_transform(AliasTransform)
|
||
|
|
||
|
return {
|
||
|
'version': 'builtin',
|
||
|
'env_version': 3,
|
||
|
'parallel_read_safe': True,
|
||
|
'parallel_write_safe': True,
|
||
|
}
|