| @@ -2,24 +2,8 @@ · 1 unmodified line |
| 2 | #![forbid(unsafe_code, rust_2018_idioms)] | 2 | #![forbid(unsafe_code, rust_2018_idioms)] |
| 3 | | 3 | |
| 4 | /// | 4 | /// |
| 5 | pub mod tree { | 5 | pub mod visit { |
| 6 | use git_hash::{oid, ObjectId}; | | |
| 7 | use git_object::immutable; | 6 | use git_object::immutable; |
| 8 | use quick_error::quick_error; | | |
| 9 | | | |
| 10 | const EMPTY_TREE: immutable::Tree<'static> = immutable::Tree::empty(); | | |
| 11 | | | |
| 12 | quick_error! { | | |
| 13 | #[derive(Debug)] | | |
| 14 | pub enum Error { | | |
| 15 | NotFound(oid: ObjectId) { | | |
| 16 | display("The object {} referenced by the tree was not found in the database", oid) | | |
| 17 | } | | |
| 18 | Cancelled { | | |
| 19 | display("The delegate cancelled the operation") | | |
| 20 | } | | |
| 21 | } | | |
| 22 | } | | |
| 23 | | 7 | |
| 24 | #[derive(Default, Clone)] | 8 | #[derive(Default, Clone)] |
| 25 | pub struct State { | 9 | pub struct State { |
| @@ -27,35 +11,56 @@ pub mod tree { · 1 unmodified line |
| 27 | buf2: Vec<u8>, | 11 | buf2: Vec<u8>, |
| 28 | } | 12 | } |
| 29 | | 13 | |
| 30 | pub struct VisitChanges<'a>(Option<&'a immutable::Tree<'a>>); | 14 | pub struct Changes<'a>(Option<&'a immutable::Tree<'a>>); |
| 31 | | 15 | |
| 32 | impl<'a, T> From<T> for VisitChanges<'a> | 16 | impl<'a, T> From<T> for Changes<'a> |
| 33 | where | 17 | where |
| 34 | T: Into<Option<&'a immutable::Tree<'a>>>, | 18 | T: Into<Option<&'a immutable::Tree<'a>>>, |
| 35 | { | 19 | { |
| 36 | fn from(v: T) -> Self { | 20 | fn from(v: T) -> Self { |
| 37 | VisitChanges(v.into()) | 21 | Changes(v.into()) |
| 38 | } | 22 | } |
| 39 | } | 23 | } |
| 40 | | 24 | |
| 41 | impl<'a> VisitChanges<'a> { | 25 | mod changes { |
| 42 | /// Returns the changes that need to be applied to `self` to get `other`. | 26 | use crate::visit; |
| 43 | pub fn to_obtain<LocateFn>( | 27 | use git_hash::{oid, ObjectId}; |
| 44 | &self, | 28 | use git_object::immutable; |
| 45 | _other: &git_object::immutable::Tree<'_>, | 29 | use quick_error::quick_error; |
| 46 | _state: &mut State, | 30 | |
| 47 | _locate: LocateFn, | 31 | const EMPTY_TREE: immutable::Tree<'static> = immutable::Tree::empty(); |
| 48 | _delegate: &mut impl Delegate, | 32 | |
| 49 | ) -> Result<(), Error> | 33 | quick_error! { |
| 50 | where | 34 | #[derive(Debug)] |
| 51 | LocateFn: for<'b> FnMut(&oid, &'b mut Vec<u8>) -> Option<immutable::Object<'b>>, | 35 | pub enum Error { |
| 52 | { | 36 | NotFound(oid: ObjectId) { |
| 53 | let _this = *self.0.as_ref().unwrap_or(&&EMPTY_TREE); | 37 | display("The object {} referenced by the tree was not found in the database", oid) |
| 54 | todo!("changes tree to tree") | 38 | } |
| | 39 | Cancelled { |
| | 40 | display("The delegate cancelled the operation") |
| | 41 | } |
| | 42 | } |
| | 43 | } |
| | 44 | |
| | 45 | impl<'a> visit::Changes<'a> { |
| | 46 | /// Returns the changes that need to be applied to `self` to get `other`. |
| | 47 | pub fn to_obtain_tree<LocateFn>( |
| | 48 | &self, |
| | 49 | _other: &git_object::immutable::Tree<'_>, |
| | 50 | _state: &mut visit::State, |
| | 51 | _locate: LocateFn, |
| | 52 | _delegate: &mut impl visit::Record, |
| | 53 | ) -> Result<(), Error> |
| | 54 | where |
| | 55 | LocateFn: for<'b> FnMut(&oid, &'b mut Vec<u8>) -> Option<immutable::Object<'b>>, |
| | 56 | { |
| | 57 | let _this = *self.0.as_ref().unwrap_or(&&EMPTY_TREE); |
| | 58 | todo!("changes tree to tree") |
| | 59 | } |
| 55 | } | 60 | } |
| 56 | } | 61 | } |
| 57 | | 62 | |
| 58 | pub mod delegate { | 63 | pub mod record { |
| 59 | use git_hash::ObjectId; | 64 | use git_hash::ObjectId; |
| 60 | use git_object::{bstr::BStr, tree}; | 65 | use git_object::{bstr::BStr, tree}; |
| 61 | | 66 | |
| @@ -88,29 +93,12 @@ pub mod tree { · 26 unmodified lines |
| 88 | Cancel, | 93 | Cancel, |
| 89 | } | 94 | } |
| 90 | | 95 | |
| 91 | pub trait Delegate { | 96 | pub trait Record { |
| 92 | fn update_path_component(&mut self, component: PathComponent<'_>, mode: PathComponentMode); | 97 | fn update_path_component(&mut self, component: PathComponent<'_>, mode: PathComponentMode); |
| 93 | fn pop_path_component(&mut self); | 98 | fn pop_path_component(&mut self); |
| 94 | fn record(change: Change) -> Action; | 99 | fn record(change: Change) -> Action; |
| 95 | } | 100 | } |
| 96 | | 101 | |
| 97 | #[derive(Clone, Default)] | | |
| 98 | pub struct Recorder; | | |
| 99 | | | |
| 100 | impl Delegate for Recorder { | | |
| 101 | fn update_path_component(&mut self, _component: PathComponent<'_>, _mode: PathComponentMode) { | | |
| 102 | todo!() | | |
| 103 | } | | |
| 104 | | | |
| 105 | fn pop_path_component(&mut self) { | | |
| 106 | todo!() | | |
| 107 | } | | |
| 108 | | | |
| 109 | fn record(_change: Change) -> Action { | | |
| 110 | todo!() | | |
| 111 | } | | |
| 112 | } | | |
| 113 | | | |
| 114 | #[cfg(test)] | 102 | #[cfg(test)] |
| 115 | mod tests { | 103 | mod tests { |
| 116 | use super::*; | 104 | use super::*; |
| @@ -125,5 +113,31 @@ pub mod tree { · 8 unmodified lines |
| 125 | } | 113 | } |
| 126 | } | 114 | } |
| 127 | } | 115 | } |
| 128 | pub use delegate::Delegate; | 116 | pub use record::Record; |
| | 117 | |
| | 118 | pub mod recorder { |
| | 119 | use crate::visit::record; |
| | 120 | |
| | 121 | #[derive(Clone, Default)] |
| | 122 | pub struct Recorder; |
| | 123 | |
| | 124 | impl record::Record for Recorder { |
| | 125 | fn update_path_component( |
| | 126 | &mut self, |
| | 127 | _component: record::PathComponent<'_>, |
| | 128 | _mode: record::PathComponentMode, |
| | 129 | ) { |
| | 130 | todo!() |
| | 131 | } |
| | 132 | |
| | 133 | fn pop_path_component(&mut self) { |
| | 134 | todo!() |
| | 135 | } |
| | 136 | |
| | 137 | fn record(_change: record::Change) -> record::Action { |
| | 138 | todo!() |
| | 139 | } |
| | 140 | } |
| | 141 | } |
| | 142 | pub use recorder::Recorder; |
| 129 | } | 143 | } |