// Copyright 2020 The Jujutsu Authors//// Licensed under the Apache License, Version 2.0 (the "License");// you may not use this file except in compliance with the License.// You may obtain a copy of the License at//// https://www.apache.org/licenses/LICENSE-2.0//// Unless required by applicable law or agreed to in writing, software// distributed under the License is distributed on an "AS IS" BASIS,// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.// See the License for the specific language governing permissions and// limitations under the License. use crate::cli_util::CommandHelper;use crate::command_error::CommandError;use crate::movement_util::Direction;use crate::movement_util::MovementArgs;use crate::movement_util::move_to_commit;use crate::ui::Ui;/// Change the working copy revision relative to the parent revision////// The command creates a new empty working copy revision that is the child of/// an ancestor `offset` revisions behind the parent of the current working/// copy.////// For example, when the offset is 1:////// ```text/// D @      D/// |/       |/// A   =>   A @/// |        |//// B        B/// ```////// If `--edit` is passed, the working copy revision is changed to the parent of/// the current working copy revision.////// ```text/// D @      D/// |/       |/// C   =>   @/// |        |/// B        B/// |        |/// A        A/// ```#[derive(clap::Args, Clone, Debug)]#[command(verbatim_doc_comment)]pub(crate) struct PrevArgs {    /// How many revisions to move backward. Moves to the parent by default    #[arg(default_value = "1")]    offset: u64,    /// Edit the parent directly, instead of moving the working-copy commit    ///    /// Takes precedence over config in `ui.movement.edit`; i.e.    /// will negate `ui.movement.edit = false`    #[arg(long, short)]    edit: bool,    /// The inverse of `--edit`    ///    /// Takes precedence over config in `ui.movement.edit`; i.e.    /// will negate `ui.movement.edit = true`    #[arg(long, short, conflicts_with = "edit")]    no_edit: bool,    /// Jump to the previous conflicted ancestor    #[arg(long, conflicts_with = "offset")]    conflict: bool,} impl From<&PrevArgs> for MovementArgs {    fn from(val: &PrevArgs) -> Self {        Self {            offset: val.offset,            edit: val.edit,            no_edit: val.no_edit,            conflict: val.conflict,        }    }} pub(crate) fn cmd_prev(    ui: &mut Ui,    command: &CommandHelper,    args: &PrevArgs,) -> Result<(), CommandError> {    move_to_commit(ui, command, Direction::Prev, &MovementArgs::from(args))}