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153
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1 from collections import namedtuple
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2
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191
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3 # Token is used in the lexical analyzer:
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194
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4 class Token:
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5 def __init__(self, typ, val, loc=None):
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6 self.typ = typ
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7 self.val = val
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8 if loc is None:
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9 loc = SourceLocation(0, 0, 0)
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10 assert type(loc) is SourceLocation
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11 self.loc = loc
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12 def __repr__(self):
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13 return 'Token({0}, {1})'.format(self.typ, self.val)
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191
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14
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163
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15 class SourceLocation:
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16 def __init__(self, row, col, ln):
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17 self.row = row
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18 self.col = col
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19 self.length = ln
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20
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153
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21 SourceRange = namedtuple('SourceRange', ['p1', 'p2'])
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22
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