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table.py
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table.py
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# module table
"""Таблица имен"""
import builtins
import error
import cat
_table = []
def openScope():
_table.append({})
def closeScope():
_table.pop()
def add(item):
top = _table[-1]
top[item.name] = item
def print():
pr = builtins.print
pr()
for scope in _table:
pr("---------------")
for key, value in scope.items():
pr(value)
def _exist(name):
top = _table[-1]
return name in top
def new(item):
if _exist(item.name):
error.cntError("Повторное объявление имени")
else:
add(item)
return item
def find(name):
for scope in _table:
if name in scope:
return scope[name]
error.cntError("Неизвестное имя")
def getVars():
vars = []
for scope in _table:
for item in scope.values():
if type(item) == cat.Var:
vars.append(item)
return vars