Files
OnlineJudge/ast_checker/engines/method_call.py

39 lines
1.3 KiB
Python

from .base import BaseEngine
CALL_NODE_TYPES = {
"Python3": "call",
"C": "call_expression",
}
class _MethodCallBase(BaseEngine):
def _find_method_calls(self, root, method_name, language):
if language == "C":
return []
call_type = CALL_NODE_TYPES.get(language, "call")
calls = self.collect_nodes(root, call_type)
matches = []
for call in calls:
func_node = call.child_by_field_name("function")
if func_node and func_node.type == "attribute":
attr_node = func_node.child_by_field_name("attribute")
if attr_node and attr_node.text.decode() == method_name:
matches.append(call)
return matches
class MustCallMethodEngine(_MethodCallBase):
def check(self, tree, rule, language, mapping):
target = rule["target"]
if not self._find_method_calls(tree.root_node, target, language):
return [rule.get("message", f"必须调用 .{target}()")]
return []
class MustNotCallMethodEngine(_MethodCallBase):
def check(self, tree, rule, language, mapping):
target = rule["target"]
if self._find_method_calls(tree.root_node, target, language):
return [rule.get("message", f"不能调用 .{target}()")]
return []