fix: pass placeholders as mutable slice

src/command/commands.rs

@@ -149,14 +149,14 @@ impl Command for Update<'_> {
 
 /// Create placeholder files/directories.
 #[derive(Debug)]
-pub struct CreatePlaceholders {
+pub struct CreatePlaceholders<'a> {
     /// The placeholders to create.
-    pub placeholders: Vec<PlaceholderFile>,
+    pub placeholders: &'a mut [PlaceholderFile],
     /// The total amount of placeholders that are a child of the current directory.
     pub total: u64,
 }
 
-impl Command for CreatePlaceholders {
+impl Command for CreatePlaceholders<'_> {
     const OPERATION: CF_OPERATION_TYPE = CloudFilters::CF_OPERATION_TYPE_TRANSFER_PLACEHOLDERS;
 
     type Result = Vec<core::Result<Usn>>;
@@ -203,7 +203,7 @@ impl Command for CreatePlaceholders {
     }
 }
 
-impl Fallible for CreatePlaceholders {
+impl Fallible for CreatePlaceholders<'_> {
     fn fail(
         connection_key: RawConnectionKey,
         transfer_key: RawTransferKey,

src/filter/ticket.rs

@@ -82,7 +82,7 @@ impl FetchPlaceholders {
     /// The value returned is the final [Usn][crate::Usn] (and if they succeeded) after each placeholder is created.
     pub fn pass_with_placeholder(
         &self,
-        placeholders: Vec<PlaceholderFile>,
+        placeholders: &mut [PlaceholderFile],
     ) -> core::Result<Vec<core::Result<Usn>>> {
         command::CreatePlaceholders {
             total: placeholders.len() as _,

src/placeholder.rs

@@ -265,11 +265,7 @@ pub struct UpdateOptions<'a>(Update<'a>);
 impl<'a> UpdateOptions<'a> {
     /// Create a new [UpdateOptions][crate::UpdateOptions].
     pub fn new() -> Self {
-        Self(Update {
-            mark_sync: false,
-            metadata: None,
-            blob: None,
-        })
+        Self::default()
     }
 
     /// Marks the placeholder as synced.
@@ -309,7 +305,11 @@ impl<'a> UpdateOptions<'a> {
 
 impl<'a> Default for UpdateOptions<'a> {
     fn default() -> Self {
-        Self::new()
+        Self(Update {
+            mark_sync: false,
+            metadata: None,
+            blob: None,
+        })
     }
 }