pylint/utils/file_state.py
def _collect_block_lines(self, msgs_store, node, msg_state):
        """Recursively walk (depth first) AST to collect block level options
        line numbers.
        """
        for child in node.get_children():
            self._collect_block_lines(msgs_store, child, msg_state)
        first = node.fromlineno
        last = node.tolineno
        # first child line number used to distinguish between disable
        # which are the first child of scoped node with those defined later.
        # For instance in the code below:
        #
        # 1.   def meth8(self):
        # 2.        """test late disabling"""
        # 3.        # pylint: disable=E1102
        # 4.        print self.blip
        # 5.        # pylint: disable=E1101
        # 6.        print self.bla
        #
        # E1102 should be disabled from line 1 to 6 while E1101 from line 5 to 6
        #
        # this is necessary to disable locally messages applying to class /
        # function using their fromlineno
        if (
            isinstance(node, (nodes.Module, nodes.ClassDef, nodes.FunctionDef))
            and node.body
        ):
            firstchildlineno = node.body[0].fromlineno
        else:
            firstchildlineno = last
        for msgid, lines in msg_state.items():
            for lineno, state in list(lines.items()):
                original_lineno = lineno
                if first > lineno or last < lineno:
                    continue
                # Set state for all lines for this block, if the
                # warning is applied to nodes.
                message_definitions = msgs_store.get_message_definitions(msgid)
                for message_definition in message_definitions:
                    if message_definition.scope == WarningScope.NODE:
                        if lineno > firstchildlineno:
                            state = True
                        first_, last_ = node.block_range(lineno)
                    else:
                        first_ = lineno
                        last_ = last
                for line in range(first_, last_ + 1):
                    # do not override existing entries
                    if line in self._module_msgs_state.get(msgid, ()):
                        continue
                    if line in lines:  # state change in the same block
                        state = lines[line]
                        original_lineno = line
                    if not state:
                        self._suppression_mapping[(msgid, line)] = original_lineno
                    try:
                        self._module_msgs_state[msgid][line] = state
                    except KeyError:
                        self._module_msgs_state[msgid] = {line: state}
                del lines[lineno]
def _collect_block_lines(self, msgs_store, node, msg_state):
        """Recursively walk (depth first) AST to collect block level options
        line numbers.
        """
        for child in node.get_children():
            self._collect_block_lines(msgs_store, child, msg_state)
        first = node.fromlineno
        last = node.tolineno
        # first child line number used to distinguish between disable
        # which are the first child of scoped node with those defined later.
        # For instance in the code below:
        #
        # 1.   def meth8(self):
        # 2.        """test late disabling"""
        # 3.        # pylint: disable=E1102
        # 4.        print self.blip
        # 5.        # pylint: disable=E1101
        # 6.        print self.bla
        #
        # E1102 should be disabled from line 1 to 6 while E1101 from line 5 to 6
        #
        # this is necessary to disable locally messages applying to class /
        # function using their fromlineno
        if (
            isinstance(node, (nodes.Module, nodes.ClassDef, nodes.FunctionDef))
            and node.body
        ):
            firstchildlineno = node.body[0].fromlineno
        else:
            firstchildlineno = last
        for msgid, lines in msg_state.items():
            for lineno, state in list(lines.items()):
                original_lineno = lineno
                if first > lineno or last < lineno:
                    continue
                # Set state for all lines for this block, if the
                # warning is applied to nodes.
                message_definitions = msgs_store.get_message_definitions(msgid)
                for message_definition in message_definitions:
                    if message_definition.scope == WarningScope.NODE:
                        if lineno > firstchildlineno:
                            state = True
                        first_, last_ = node.block_range(lineno)
                    else:
                        first_ = lineno
                        last_ = last
                for line in range(first_, last_ + 1):
                    # do not override existing entries
                    if line in self._module_msgs_state.get(msgid, ()):
                        continue
                    if line in lines:  # state change in the same block
                        state = lines[line]
                        original_lineno = line
                    if not state:
                        self._suppression_mapping[(msgid, line)] = original_lineno
                    try:
                        self._module_msgs_state[msgid][line] = state
                    except KeyError:
                        self._module_msgs_state[msgid] = {line: state}
                del lines[lineno]
Recursively walk (depth first) AST to collect block level options
        line numbers.