def _parse_literal_cursor(self, c: Cursor, warn_failed: bool = False) \
-> Tuple[Optional[str], Optional[Union[str, float, int]]]:
"""
used to parse variable
:return: literal, value
"""
tokens: List[Token] = list(c.get_tokens())
has_assign = False
for i, t in enumerate(tokens):
if has_assign:
if t.kind == TokenKind.IDENTIFIER:
if t.cursor.kind == CursorKind.MACRO_INSTANTIATION:
return self._parse_macro_literal_cursor(c)
if t.kind == TokenKind.LITERAL:
spelling = t.spelling
val = self._try_parse_literal(t.cursor.kind, t.spelling)
last_t = tokens[i - 1]
if last_t.kind == TokenKind.PUNCTUATION and last_t.spelling == '-':
return spelling, -val
return spelling, val
elif t.spelling == '=':
has_assign = True
if has_assign:
if warn_failed:
logger.warning("unknown literal, kind:%s, spelling:%s, %s",
c.kind, c.spelling, c.extent)
return None, None
def _process_macro_definition(c: Cursor):
name = c.spelling
tokens = list(c.get_tokens())
length = len(tokens)
m = Macro(name=name,
parent=None, # macro has no parent
location=location_from_cursor(c),
definition="",
brief_comment=c.brief_comment,
)
if length == 1:
return m
m.definition = " ".join([i.spelling for i in tokens[1:]])
return m