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https://github.com/apple/swift.git
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213 lines
11 KiB
Python
213 lines
11 KiB
Python
from Classification import classification_by_name
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from Node import error
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from kinds import lowercase_first_word
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class Token(object):
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"""
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Represents the specification for a Token in the TokenSyntax file.
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"""
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def __init__(self, name, kind, serialization_code, text=None,
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classification='None', is_keyword=False):
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self.name = name
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self.kind = kind
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self.serialization_code = serialization_code
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self.text = text or ""
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self.classification = classification_by_name(classification)
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self.is_keyword = is_keyword
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def swift_kind(self):
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name = lowercase_first_word(self.name)
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if self.is_keyword:
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return name + 'Keyword'
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return name
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class Keyword(Token):
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"""
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Represents a keyword token.
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"""
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def __init__(self, name, text, serialization_code):
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Token.__init__(self, name, 'kw_' + text, serialization_code, text=text,
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classification='Keyword', is_keyword=True)
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SYNTAX_TOKENS = [
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Keyword('Associatedtype', 'associatedtype', serialization_code=1),
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Keyword('Class', 'class', serialization_code=2),
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Keyword('Deinit', 'deinit', serialization_code=3),
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Keyword('Enum', 'enum', serialization_code=4),
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Keyword('Extension', 'extension', serialization_code=5),
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Keyword('Func', 'func', serialization_code=6),
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Keyword('Import', 'import', serialization_code=7),
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Keyword('Init', 'init', serialization_code=8),
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Keyword('Inout', 'inout', serialization_code=9),
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Keyword('Let', 'let', serialization_code=10),
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Keyword('Operator', 'operator', serialization_code=11),
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Keyword('Precedencegroup', 'precedencegroup', serialization_code=12),
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Keyword('Protocol', 'protocol', serialization_code=13),
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Keyword('Struct', 'struct', serialization_code=14),
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Keyword('Subscript', 'subscript', serialization_code=15),
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Keyword('Typealias', 'typealias', serialization_code=16),
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Keyword('Var', 'var', serialization_code=17),
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Keyword('Fileprivate', 'fileprivate', serialization_code=18),
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Keyword('Internal', 'internal', serialization_code=19),
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Keyword('Private', 'private', serialization_code=20),
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Keyword('Public', 'public', serialization_code=21),
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Keyword('Static', 'static', serialization_code=22),
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Keyword('Defer', 'defer', serialization_code=23),
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Keyword('If', 'if', serialization_code=24),
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Keyword('Guard', 'guard', serialization_code=25),
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Keyword('Do', 'do', serialization_code=26),
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Keyword('Repeat', 'repeat', serialization_code=27),
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Keyword('Else', 'else', serialization_code=28),
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Keyword('For', 'for', serialization_code=29),
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Keyword('In', 'in', serialization_code=30),
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Keyword('While', 'while', serialization_code=31),
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Keyword('Return', 'return', serialization_code=32),
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Keyword('Break', 'break', serialization_code=33),
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Keyword('Continue', 'continue', serialization_code=34),
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Keyword('Fallthrough', 'fallthrough', serialization_code=35),
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Keyword('Switch', 'switch', serialization_code=36),
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Keyword('Case', 'case', serialization_code=37),
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Keyword('Default', 'default', serialization_code=38),
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Keyword('Where', 'where', serialization_code=39),
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Keyword('Catch', 'catch', serialization_code=40),
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Keyword('As', 'as', serialization_code=41),
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Keyword('Any', 'Any', serialization_code=42),
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Keyword('False', 'false', serialization_code=43),
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Keyword('Is', 'is', serialization_code=44),
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Keyword('Nil', 'nil', serialization_code=45),
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Keyword('Rethrows', 'rethrows', serialization_code=46),
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Keyword('Super', 'super', serialization_code=47),
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Keyword('Self', 'self', serialization_code=48),
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Keyword('CapitalSelf', 'Self', serialization_code=49),
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Keyword('Throw', 'throw', serialization_code=50),
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Keyword('True', 'true', serialization_code=51),
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Keyword('Try', 'try', serialization_code=52),
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Keyword('Throws', 'throws', serialization_code=53),
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Keyword('__FILE__', '__FILE__', serialization_code=54),
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Keyword('__LINE__', '__LINE__', serialization_code=55),
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Keyword('__COLUMN__', '__COLUMN__', serialization_code=56),
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Keyword('__FUNCTION__', '__FUNCTION__', serialization_code=57),
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Keyword('__DSO_HANDLE__', '__DSO_HANDLE__', serialization_code=58),
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Keyword('Wildcard', '_', serialization_code=59),
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Keyword('Yield', 'yield', serialization_code=116),
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Token('PoundAvailable', 'pound_available', text='#available',
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is_keyword=True, classification='Keyword', serialization_code=60),
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Token('PoundEndif', 'pound_endif', text='#endif',
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is_keyword=True, classification='PoundDirectiveKeyword',
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serialization_code=61),
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Token('PoundElse', 'pound_else', text='#else',
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is_keyword=True, classification='PoundDirectiveKeyword',
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serialization_code=62),
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Token('PoundElseif', 'pound_elseif', text='#elseif',
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is_keyword=True, classification='PoundDirectiveKeyword',
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serialization_code=63),
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Token('PoundIf', 'pound_if', text='#if',
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is_keyword=True, classification='PoundDirectiveKeyword',
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serialization_code=64),
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Token('PoundSourceLocation', 'pound_sourceLocation',
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text='#sourceLocation', is_keyword=True,
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classification='PoundDirectiveKeyword', serialization_code=65),
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Token('PoundWarning', 'pound_warning', text='#warning', is_keyword=True,
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classification='PoundDirectiveKeyword', serialization_code=66),
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Token('PoundError', 'pound_error', text='#error', is_keyword=True,
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classification='PoundDirectiveKeyword', serialization_code=67),
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Token('PoundFile', 'pound_file', text='#file',
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is_keyword=True, classification='Keyword', serialization_code=68),
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Token('PoundLine', 'pound_line', text='#line',
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is_keyword=True, classification='Keyword', serialization_code=69),
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Token('PoundColumn', 'pound_column', text='#column',
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is_keyword=True, classification='Keyword', serialization_code=70),
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Token('PoundDsohandle', 'pound_dsohandle', text='#dsohandle',
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is_keyword=True, classification='Keyword', serialization_code=71),
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Token('PoundFunction', 'pound_function', text='#function',
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is_keyword=True, classification='Keyword', serialization_code=72),
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Token('PoundSelector', 'pound_selector', text='#selector',
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is_keyword=True, classification='Keyword', serialization_code=73),
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Token('PoundKeyPath', 'pound_keyPath', text='#keyPath',
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is_keyword=True, classification='Keyword', serialization_code=74),
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Token('PoundColorLiteral', 'pound_colorLiteral', text='#colorLiteral',
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is_keyword=True, classification='ObjectLiteral',
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serialization_code=75),
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Token('PoundFileLiteral', 'pound_fileLiteral', text='#fileLiteral',
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is_keyword=True, classification='ObjectLiteral',
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serialization_code=76),
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Token('PoundImageLiteral', 'pound_imageLiteral', text='#imageLiteral',
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is_keyword=True, classification='ObjectLiteral',
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serialization_code=77),
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Token('Arrow', 'arrow', text='->', serialization_code=78),
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Token('Backtick', 'backtick', text='`', serialization_code=79),
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Token('AtSign', 'at_sign', text='@', classification='Attribute',
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serialization_code=80),
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Token('Pound', 'pound', text='#', serialization_code=81),
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Token('Colon', 'colon', text=':', serialization_code=82),
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Token('Semicolon', 'semi', text=';', serialization_code=83),
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Token('Comma', 'comma', text=',', serialization_code=84),
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Token('Period', 'period', text='.', serialization_code=85),
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Token('Equal', 'equal', text='=', serialization_code=86),
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Token('PrefixPeriod', 'period_prefix', text='.', serialization_code=87),
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Token('LeftParen', 'l_paren', text='(', serialization_code=88),
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Token('RightParen', 'r_paren', text=')', serialization_code=89),
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Token('LeftBrace', 'l_brace', text='{', serialization_code=90),
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Token('RightBrace', 'r_brace', text='}', serialization_code=91),
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Token('LeftSquareBracket', 'l_square', text='[', serialization_code=92),
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Token('RightSquareBracket', 'r_square', text=']', serialization_code=93),
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Token('LeftAngle', 'l_angle', text='<', serialization_code=94),
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Token('RightAngle', 'r_angle', text='>', serialization_code=95),
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Token('PrefixAmpersand', 'amp_prefix', text='&', serialization_code=96),
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Token('PostfixQuestionMark', 'question_postfix', text='?',
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serialization_code=97),
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Token('InfixQuestionMark', 'question_infix', text='?',
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serialization_code=98),
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Token('ExclamationMark', 'exclaim_postfix', text='!',
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serialization_code=99),
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Token('Backslash', 'backslash', text='\\\\', serialization_code=100),
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Token('StringInterpolationAnchor', 'string_interpolation_anchor',
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text=')', classification='StringInterpolationAnchor',
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serialization_code=101),
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Token('StringQuote', 'string_quote', text='\\\"',
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classification='StringLiteral', serialization_code=102),
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Token('MultilineStringQuote', 'multiline_string_quote',
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text='\\\"\\\"\\\"', classification='StringLiteral',
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serialization_code=103),
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Token('StringSegment', 'string_segment', classification='StringLiteral',
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serialization_code=104),
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Token('Identifier', 'identifier', classification=None,
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serialization_code=105),
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Token('DollarIdentifier', 'dollarident',
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classification='DollarIdentifier', serialization_code=106),
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Token('UnspacedBinaryOperator', 'oper_binary_unspaced',
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serialization_code=107),
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Token('SpacedBinaryOperator', 'oper_binary_spaced',
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serialization_code=108),
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Token('PrefixOperator', 'oper_prefix', serialization_code=109),
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Token('PostfixOperator', 'oper_postfix', serialization_code=110),
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Token('IntegerLiteral', 'integer_literal',
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classification='IntegerLiteral', serialization_code=111),
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Token('FloatingLiteral', 'floating_literal',
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classification='FloatingLiteral', serialization_code=112),
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Token('StringLiteral', 'string_literal',
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classification='StringLiteral', serialization_code=113),
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Token('ContextualKeyword', 'contextual_keyword', classification='Keyword',
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serialization_code=114),
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Token('Unknown', 'unknown', serialization_code=115),
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]
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SYNTAX_TOKEN_MAP = {token.name + 'Token': token for token in SYNTAX_TOKENS}
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def verify_no_duplicate_serialization_codes(tokens):
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used_codes = set()
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for token in tokens:
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if token.serialization_code in used_codes:
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error("Serialization code %d used twice for tokens" %
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token.serialization_code)
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used_codes.add(token.serialization_code)
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verify_no_duplicate_serialization_codes(SYNTAX_TOKENS)
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