def __idrval(self):
"""<idrvalue> ::= ID ( DOT ID )* | ID LPAREN <exprlist> RPAREN """
idrval = ast.IDRvalue()
idrval.path.append(self.current_token)
call_rval = ast.CallRValue()
call_rval.fun = self.current_token
self.__eat(token.ID, "expected an ID")
is_id_not_call = None
if self.__tokenIs(token.LPAREN):
is_id_not_call = False
self.__advance()
self.__exprlist(call_rval.args)
self.__eat(token.RPAREN, "expected ')'")
else:
is_id_not_call = True
while self.__tokenIs(token.DOT):
self.__advance()
idrval.path.append(self.current_token)
self.__eat(token.ID, "expected an ID")
if (is_id_not_call):
return idrval
else:
return call_rval
def __idrval(self, exprNode):
temp = self.current_token
self.__eat(token.ID, 'expecting id')
if self.current_token.tokentype == token.LPAREN:
exprNode.term = ast.CallRValue()
exprNode.term.fun = temp
self.__eat(token.LPAREN, 'expecting (')
self.__exprlist(exprNode.term)
self.__eat(token.RPAREN, 'expecting )')
else:
exprNode.term = ast.IDRvalue()
exprNode.term.path.append(temp)
while self.current_token.tokentype == token.DOT:
self.__advance()
exprNode.term.path.append(self.current_token)
self.__eat(token.ID, 'expecting id')
def __idrval(self):
"""<idrval> ::= ID (DOT ID)* | ID LPAREN <exprlist> RPAREN"""
idr_value_node = ast.IDRvalue()
idr_value_node.path.append(self.current_token)
self.__eat(token.ID, "expecting an identifier")
if self.current_token.tokentype == token.LPAREN:
call_rvalue_node = ast.CallRValue()
call_rvalue_node.fun = idr_value_node.path[0]
self.__advance()
call_rvalue_node.args = self.__exprlist()
self.__eat(token.RPAREN, 'expecting a ")"')
return call_rvalue_node
else:
while self.current_token.tokentype == token.DOT:
self.__advance()
idr_value_node.path.append(self.current_token)
self.__eat(token.ID, "expecting an identifier")
return idr_value_node
def __idrval(self):
id_rval_node = ast.IDRvalue()
call_rval_node = ast.CallRValue()
id_rval_node.path.append(self.current_token)
call_rval_node.fun = self.current_token
self.__eat(token.ID, 'expecting ID')
if self.current_token.tokentype == token.LPAREN:
self.__advance()
self.__exprlist(call_rval_node)
self.__eat(token.RPAREN, 'expecting rparren')
return call_rval_node
else:
while self.current_token.tokentype == token.DOT:
self.__advance()
id_rval_node.path.append(self.current_token)
self.__eat(token.ID, 'expecting ID')
return id_rval_node
def idrval(self):
id_node = ast.IDRvalue()
call_rvalue_node = ast.CallRValue()
id_node.path.append(self.current_token)
self.__eat(token.ID, "expecting an ID")
if self.current_token.tokentype == token.DOT:
while self.current_token.tokentype == token.DOT:
self.__advance()
id_node.path.append(self.current_token)
self.__eat(token.ID, "expecting an ID")
return id_node
elif self.current_token.tokentype == token.LPAREN:
call_rvalue_node.fun = id_node.path[0]
self.__advance()
if self.current_token.tokentype != token.RPAREN:
self.__expr_list(call_rvalue_node)
self.__eat(token.RPAREN, "expecting ')'")
return call_rvalue_node
return id_node
def __idrval(self):
"""<idrval> ::= ID ( DOT ID )* | ID LPAREN <exprlist> RPAREN"""
rStmt = ast.SimpleRValue()
rStmt.val = self.current_token
self.__eat(token.ID, "expecting ID")
if self.current_token.tokentype == token.LPAREN:
temp = rStmt.val
rStmt = ast.CallRValue()
rStmt.fun = temp
self.__advance()
self.__exprlist(rStmt)
self.__eat(token.RPAREN, "expecting a ')'")
return rStmt
else:
if self.current_token.tokentype == token.DOT:
temp = rStmt.val
rStmt = ast.IDRvalue()
rStmt.path.append(temp)
while self.current_token.tokentype == token.DOT:
self.__advance()
temp = self.current_token
rStmt.path.append(temp)
self.__eat(token.ID, "expecting an ID")
return rStmt