本文整理汇总了Python中symbol.expr方法的典型用法代码示例。如果您正苦于以下问题：Python symbol.expr方法的具体用法？Python symbol.expr怎么用？Python symbol.expr使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类symbol的用法示例。
在下文中一共展示了symbol.expr方法的10个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: decorator
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def decorator(self, nodelist):
# '@' dotted_name [ '(' [arglist] ')' ]
assert len(nodelist) in (3, 5, 6)
assert nodelist[0][0] == token.AT
assert nodelist[-1][0] == token.NEWLINE
assert nodelist[1][0] == symbol.dotted_name
funcname = self.decorator_name(nodelist[1][1:])
if len(nodelist) > 3:
assert nodelist[2][0] == token.LPAR
expr = self.com_call_function(funcname, nodelist[3])
else:
expr = funcname
return expr 示例2: parseexpr
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def parseexpr(self, text):
"""Return a modified parse tree for the given expression text."""
return self.transform(parser.expr(text)) 示例3: yield_stmt
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def yield_stmt(self, nodelist):
expr = self.com_node(nodelist[0])
return Discard(expr, lineno=expr.lineno) 示例4: exec_stmt
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def exec_stmt(self, nodelist):
# exec_stmt: 'exec' expr ['in' expr [',' expr]]
expr1 = self.com_node(nodelist[1])
if len(nodelist) >= 4:
expr2 = self.com_node(nodelist[3])
if len(nodelist) >= 6:
expr3 = self.com_node(nodelist[5])
else:
expr3 = None
else:
expr2 = expr3 = None
return Exec(expr1, expr2, expr3, lineno=nodelist[0][2]) 示例5: testlist
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def testlist(self, nodelist):
# testlist: expr (',' expr)* [',']
# testlist_safe: test [(',' test)+ [',']]
# exprlist: expr (',' expr)* [',']
return self.com_binary(Tuple, nodelist) 示例6: expr
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def expr(self, nodelist):
# xor_expr ('|' xor_expr)*
return self.com_binary(Bitor, nodelist) 示例7: com_try_except_finally
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def com_try_except_finally(self, nodelist):
# ('try' ':' suite
# ((except_clause ':' suite)+ ['else' ':' suite] ['finally' ':' suite]
# | 'finally' ':' suite))
if nodelist[3][0] == token.NAME:
# first clause is a finally clause: only try-finally
return TryFinally(self.com_node(nodelist[2]),
self.com_node(nodelist[5]),
lineno=nodelist[0][2])
#tryexcept: [TryNode, [except_clauses], elseNode)]
clauses = []
elseNode = None
finallyNode = None
for i in range(3, len(nodelist), 3):
node = nodelist[i]
if node[0] == symbol.except_clause:
# except_clause: 'except' [expr [(',' | 'as') expr]] */
if len(node) > 2:
expr1 = self.com_node(node[2])
if len(node) > 4:
expr2 = self.com_assign(node[4], OP_ASSIGN)
else:
expr2 = None
else:
expr1 = expr2 = None
clauses.append((expr1, expr2, self.com_node(nodelist[i+2])))
if node[0] == token.NAME:
if node[1] == 'else':
elseNode = self.com_node(nodelist[i+2])
elif node[1] == 'finally':
finallyNode = self.com_node(nodelist[i+2])
try_except = TryExcept(self.com_node(nodelist[2]), clauses, elseNode,
lineno=nodelist[0][2])
if finallyNode:
return TryFinally(try_except, finallyNode, lineno=nodelist[0][2])
else:
return try_except 示例8: com_with_item
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def com_with_item(self, nodelist, body, lineno):
# with_item: test ['as' expr]
if len(nodelist) == 4:
var = self.com_assign(nodelist[3], OP_ASSIGN)
else:
var = None
expr = self.com_node(nodelist[1])
return With(expr, var, body, lineno=lineno) 示例9: com_list_comprehension
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def com_list_comprehension(self, expr, node):
return self.com_comprehension(expr, None, node, 'list') 示例10: com_generator_expression
# 需要导入模块: import symbol [as 别名]
# 或者: from symbol import expr [as 别名]
def com_generator_expression(self, expr, node):
# comp_iter: comp_for | comp_if
# comp_for: 'for' exprlist 'in' test [comp_iter]
# comp_if: 'if' test [comp_iter]
lineno = node[1][2]
fors = []
while node:
t = node[1][1]
if t == 'for':
assignNode = self.com_assign(node[2], OP_ASSIGN)
genNode = self.com_node(node[4])
newfor = GenExprFor(assignNode, genNode, [],
lineno=node[1][2])
fors.append(newfor)
if (len(node)) == 5:
node = None
else:
node = self.com_comp_iter(node[5])
elif t == 'if':
test = self.com_node(node[2])
newif = GenExprIf(test, lineno=node[1][2])
newfor.ifs.append(newif)
if len(node) == 3:
node = None
else:
node = self.com_comp_iter(node[3])
else:
raise SyntaxError, \
("unexpected generator expression element: %s %d"
% (node, lineno))
fors[0].is_outmost = True
return GenExpr(GenExprInner(expr, fors), lineno=lineno)