codeql/python/extractor/lark/grammar.py at codeql-cli/v2.26.3 · github/codeql · GitHub

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class Symbol(object):

is_term = NotImplemented

def __init__(self, name):

self.name = name

def __eq__(self, other):

assert isinstance(other, Symbol), other

return self.is_term == other.is_term and self.name == other.name

def __ne__(self, other):

return not (self == other)

def __hash__(self):

return hash(self.name)

def __repr__(self):

return '%s(%r)' % (type(self).__name__, self.name)

class Terminal(Symbol):

is_term = True

def __init__(self, name, filter_out=False):

self.name = name

self.filter_out = filter_out

class NonTerminal(Symbol):

is_term = False

class Rule(object):

"""

origin : a symbol

expansion : a list of symbols

"""

def __init__(self, origin, expansion, alias=None, options=None):

self.origin = origin

self.expansion = expansion

self.alias = alias

self.options = options

def __str__(self):

return '<%s : %s>' % (self.origin, ' '.join(map(str,self.expansion)))

def __repr__(self):

return 'Rule(%r, %r, %r, %r)' % (self.origin, self.expansion, self.alias, self.options)

class RuleOptions:

def __init__(self, keep_all_tokens=False, expand1=False, priority=None):

self.keep_all_tokens = keep_all_tokens

self.expand1 = expand1

self.priority = priority

def __repr__(self):

return 'RuleOptions(%r, %r, %r)' % (

self.keep_all_tokens,

self.expand1,

self.priority,

)

codeql/python/extractor/lark/grammar.py at codeql-cli/v2.26.3 · github/codeql · GitHub

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