def try_handler(self,
body: List[ast27.stmt],
handlers: List[ast27.ExceptHandler],
orelse: List[ast27.stmt],
finalbody: List[ast27.stmt],
lineno: int) -> TryStmt:
vs = [] # type: List[Optional[NameExpr]]
for item in handlers:
if item.name is None:
vs.append(None)
elif isinstance(item.name, ast27.Name):
vs.append(NameExpr(item.name.id))
else:
self.fail("Sorry, `except <expr>, <anything but a name>` is not supported",
item.lineno, item.col_offset)
vs.append(None)
types = [self.visit(h.type) for h in handlers]
handlers_ = [self.as_required_block(h.body, h.lineno) for h in handlers]
return TryStmt(self.as_required_block(body, lineno),
vs,
types,
handlers_,
self.as_block(orelse, lineno),
self.as_block(finalbody, lineno))
def visit_try_stmt(self, node: TryStmt) -> TryStmt:
return TryStmt(self.block(node.body),
self.optional_names(node.vars),
self.optional_expressions(node.types),
self.blocks(node.handlers),
self.optional_block(node.else_body),
self.optional_block(node.finally_body))
def visit_Try(self, n: ast35.Try) -> Node:
vs = [NameExpr(h.name) if h.name is not None else None for h in n.handlers]
types = [self.visit(h.type) for h in n.handlers]
handlers = [self.as_block(h.body, h.lineno) for h in n.handlers]
return TryStmt(self.as_block(n.body, n.lineno),
vs,
types,
handlers,
self.as_block(n.orelse, n.lineno),
self.as_block(n.finalbody, n.lineno))
def visit_Try(self, n: ast3.Try) -> TryStmt:
vs = [
NameExpr(h.name) if h.name is not None else None
for h in n.handlers
]
types = [self.visit(h.type) for h in n.handlers]
handlers = [
self.as_required_block(h.body, h.lineno) for h in n.handlers
]
node = TryStmt(self.as_required_block(n.body, n.lineno), vs, types,
handlers, self.as_block(n.orelse, n.lineno),
self.as_block(n.finalbody, n.lineno))
return self.set_line(node, n)
def try_handler(self, body: List[ast27.stmt],
handlers: List[ast27.ExceptHandler],
orelse: List[ast27.stmt], finalbody: List[ast27.stmt],
lineno: int) -> TryStmt:
def produce_name(item: ast27.ExceptHandler) -> Optional[NameExpr]:
if item.name is None:
return None
elif isinstance(item.name, ast27.Name):
return NameExpr(item.name.id)
else:
raise RuntimeError("'{}' has non-Name name.".format(
ast27.dump(item)))
vs = [produce_name(h) for h in handlers]
types = [self.visit(h.type) for h in handlers]
handlers_ = [self.as_block(h.body, h.lineno) for h in handlers]
return TryStmt(self.as_block(body, lineno), vs, types, handlers_,
self.as_block(orelse, lineno),
self.as_block(finalbody, lineno))
