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e3c60e631d
Adjust the python imports to be python2 and python3 compatible to enable gyb to be switched over to python3.
75 lines
3.0 KiB
Python
75 lines
3.0 KiB
Python
from .Node import error
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from .kinds import lowercase_first_word # noqa: I201
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class Trivia(object):
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def __init__(self, name, comment, serialization_code, characters=[],
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swift_characters=[], is_new_line=False, is_comment=False):
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self.name = name
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self.comment = comment
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self.serialization_code = serialization_code
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self.characters = tuple(characters)
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self.lower_name = lowercase_first_word(name)
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self.is_new_line = is_new_line
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self.is_comment = is_comment
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# Swift sometimes doesn't support escaped characters like \f or \v;
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# we should allow specifying alternatives explicitly.
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if swift_characters:
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self.swift_characters = tuple(swift_characters)
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else:
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self.swift_characters = characters
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assert len(self.swift_characters) == len(self.characters)
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def characters_len(self):
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return len(self.characters)
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def is_collection(self):
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return self.characters_len() > 0
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TRIVIAS = [
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Trivia('Space', 'A space \' \' character.', characters=[' '],
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serialization_code=0),
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Trivia('Tab', 'A tab \'\\t\' character.', characters=['\\t'],
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serialization_code=1),
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Trivia('VerticalTab', 'A vertical tab \'\\v\' character.',
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characters=['\\v'], swift_characters=['\\u{2B7F}'],
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serialization_code=2),
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Trivia('Formfeed', 'A form-feed \'f\' character.', characters=['\\f'],
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swift_characters=['\\u{240C}'], serialization_code=3),
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Trivia('Newline', 'A newline \'\\n\' character.', characters=['\\n'],
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is_new_line=True, serialization_code=4),
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Trivia('CarriageReturn', 'A newline \'\\r\' character.',
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characters=['\\r'], is_new_line=True, serialization_code=5),
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Trivia('CarriageReturnLineFeed',
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'A newline consists of contiguous \'\\r\' and \'\\n\' characters.',
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characters=['\\r', '\\n'], is_new_line=True, serialization_code=6),
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Trivia('LineComment', 'A developer line comment, starting with \'//\'',
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is_comment=True, serialization_code=8),
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Trivia('BlockComment',
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'A developer block comment, starting with \'/*\' and ending with'
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' \'*/\'.',
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is_comment=True, serialization_code=9),
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Trivia('DocLineComment',
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'A documentation line comment, starting with \'///\'.',
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is_comment=True, serialization_code=10),
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Trivia('DocBlockComment',
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'A documentation block comment, starting with \'/**\' and ending '
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'with \'*/\'.',
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is_comment=True, serialization_code=11),
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Trivia('GarbageText', 'Any skipped garbage text.', serialization_code=12),
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]
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def verify_no_duplicate_serialization_codes(trivias):
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used_codes = set()
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for trivia in trivias:
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if trivia.serialization_code in used_codes:
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error("Serialization code %d used twice for trivia" %
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trivia.serialization_code)
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used_codes.add(trivia.serialization_code)
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verify_no_duplicate_serialization_codes(TRIVIAS)
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