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"""Dynamic replacement for the stdlib 'symbol' module.
This module exports the symbol values computed by the grammar parser
at run-time.
"""
from pypy.interpreter.mixedmodule import MixedModule
from pypy.interpreter.pyparser import pygram
class Module(MixedModule):
"""Non-terminal symbols of Python grammar."""
appleveldefs = {}
interpleveldefs = {} # see below
def _init_symbols():
sym_name = {}
for name, val in pygram.python_grammar.symbol_ids.iteritems():
Module.interpleveldefs[name] = 'space.wrap(%d)' % val
sym_name[val] = name
Module.interpleveldefs['sym_name'] = 'space.wrap(%r)' % (sym_name,)
_init_symbols()
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