Struct parallel_disk_usage::data_tree::DataTree

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pub struct DataTree<Name, Data: Size> { /* private fields */ }

Expand description

Disk usage data of a filesystem tree.

Construction: There are 3 main ways to create a DataTree:

Use FsTreeBuilder to create it from the real filesystem.
Use TreeBuilder to create it from a representation of a filesystem.
Use Reflection.

Visualization: Use the Visualizer struct to create an ASCII chart that visualizes DataTree.

Serialization and deserialization: (feature: json) DataTree does not implement Serialize and Deserialize traits directly, instead, it can be converted into/from a Reflection which implements these traits.

Implementations

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impl<Name, Data: Size> DataTree<Name, Data>

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pub fn into_reflection(self) -> Reflection<Name, Data>

Create reflection.

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impl<Name, Data: Size> DataTree<Name, Data>

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pub fn dir(name: Name, inode_size: Data, children: Vec<Self>) -> Self

Create a tree representation of a directory.

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pub fn file(name: Name, data: Data) -> Self

Create a tree representation of a file.

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pub fn fixed_size_dir_constructor(
inode_size: Data
) -> impl Fn(Name, Vec<Self>) -> Self where
Data: Copy,

Create a directory constructor of fixed inode size.

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impl<Name, Data: Size> DataTree<Name, Data>

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pub fn name(&self) -> &Name

Extract name

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pub fn name_mut(&mut self) -> &mut Name

Get mutable reference to name.

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pub fn data(&self) -> Data

Extract total disk usage

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pub fn children(&self) -> &Vec<Self>

Extract children

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impl<Name, Data> DataTree<Name, Data> where
Self: Send,
Data: Size,

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pub fn par_retain(&mut self, predicate: impl Fn(&Self) -> bool + Copy + Sync)

Recursively cull all descendants that do not satisfy given predicate, in parallel.

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pub fn into_par_retained(
self,
predicate: impl Fn(&Self) -> bool + Copy + Sync
) -> Self

Process the tree via par_retain method.

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pub fn par_cull_insignificant_data(&mut self, min_ratio: f32) where
Data: Into<u64>,

Recursively cull all descendants whose data are too small relative to root.

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impl<Name, Data> DataTree<Name, Data> where
Self: Send,
Data: Size,

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pub fn par_sort_by(
&mut self,
compare: impl Fn(&Self, &Self) -> Ordering + Copy + Sync
)

Sort all descendants recursively, in parallel.

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pub fn into_par_sorted(
self,
compare: impl Fn(&Self, &Self) -> Ordering + Copy + Sync
) -> Self

Process the tree via par_sort_by method.

Trait Implementations

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impl<Name: Debug, Data: Debug + Size> Debug for DataTree<Name, Data>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<Name, Data: Size> From<DataTree<Name, Data>> for Reflection<Name, Data>

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fn from(source: DataTree<Name, Data>) -> Self

Performs the conversion.

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impl<Data, GetData, Report> From<FsTreeBuilder<Data, GetData, Report>> for DataTree<OsStringDisplay, Data> where
 Data: Size + Send + Sync,
 GetData: Fn(&Metadata) -> Data + Sync,
 Report: Reporter<Data> + Sync,

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fn from(builder: FsTreeBuilder<Data, GetData, Report>) -> Self

Create a DataTree from an FsTreeBuilder.

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impl<Path, Name, Data, GetInfo, JoinPath> From<TreeBuilder<Path, Name, Data, GetInfo, JoinPath>> for DataTree<Name, Data> where
 Path: Send + Sync,
 Name: Send + Sync,
 Data: Size + Send,
 GetInfo: Fn(&Path) -> Info<Name, Data> + Copy + Send + Sync,
 JoinPath: Fn(&Path, &Name) -> Path + Copy + Send + Sync,

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fn from(builder: TreeBuilder<Path, Name, Data, GetInfo, JoinPath>) -> Self

Create a DataTree from a TreeBuilder.

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impl<Name: PartialEq, Data: PartialEq + Size> PartialEq<DataTree<Name, Data>> for DataTree<Name, Data>

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fn eq(&self, other: &DataTree<Name, Data>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &DataTree<Name, Data>) -> bool

This method tests for !=.

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impl<Name: Eq, Data: Eq + Size> Eq for DataTree<Name, Data>

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impl<Name, Data: Size> StructuralEq for DataTree<Name, Data>

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impl<Name, Data: Size> StructuralPartialEq for DataTree<Name, Data>

Auto Trait Implementations

impl<Name, Data> RefUnwindSafe for DataTree<Name, Data> where
Data: RefUnwindSafe,
Name: RefUnwindSafe,

impl<Name, Data> Send for DataTree<Name, Data> where
Data: Send,
Name: Send,

impl<Name, Data> Sync for DataTree<Name, Data> where
Data: Sync,
Name: Sync,

impl<Name, Data> Unpin for DataTree<Name, Data> where
Data: Unpin,
Name: Unpin,

impl<Name, Data> UnwindSafe for DataTree<Name, Data> where
Data: UnwindSafe,
Name: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Performs the conversion.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Performs the conversion.

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impl<X> Pipe for X

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fn pipe<Return, Function>(self, f: Function) -> Return where
Function: FnOnce(Self) -> Return,

Apply f to self. Read more

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fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return where
Function: FnOnce(&'a Self) -> Return,

Apply f to &self. Read more

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fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return where
Function: FnOnce(&'a mut Self) -> Return,

Apply f to &mut self. Read more

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fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
 Self: AsRef<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait AsRef<Param>. Read more

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fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return where
 Self: AsMut<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait AsMut<Param>. Read more

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fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
 Self: Deref<Target = Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Deref<Target = Param>. Read more

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fn pipe_deref_mut<'a, Param, Return, Function>(
 &'a mut self,
 f: Function
) -> Return where
 Self: DerefMut<Target = Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait [DerefMut<Target = Param>]. Read more

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fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
 Self: Borrow<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Borrow<Param>. Read more

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fn pipe_borrow_mut<'a, Param, Return, Function>(
 &'a mut self,
 f: Function
) -> Return where
 Self: BorrowMut<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait BorrowMut<Param>. Read more

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impl<X> Pipe for X

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fn pipe<Return, Function>(self, f: Function) -> Return where
Function: FnOnce(Self) -> Return,

Apply f to self. Read more

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fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return where
Function: FnOnce(&'a Self) -> Return,

Apply f to &self. Read more

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fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return where
Function: FnOnce(&'a mut Self) -> Return,

Apply f to &mut self. Read more

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fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
 Self: AsRef<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait AsRef<Param>. Read more

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fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return where
 Self: AsMut<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait AsMut<Param>. Read more

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fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
 Self: Deref<Target = Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Deref<Param>. Read more

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fn pipe_deref_mut<'a, Param, Return, Function>(
 &'a mut self,
 f: Function
) -> Return where
 Self: DerefMut<Target = Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait DerefMut<Param>. Read more

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fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
 Self: Borrow<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a Param) -> Return,

Apply f to &self where f takes a single parameter of type Param and Self implements trait Deref<Param>. Read more

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fn pipe_borrow_mut<'a, Param, Return, Function>(
 &'a mut self,
 f: Function
) -> Return where
 Self: BorrowMut<Param>,
 Param: 'a + ?Sized,
 Function: FnOnce(&'a mut Param) -> Return,

Apply f to &mut self where f takes a single parameter of type Param and Self implements trait DerefMut<Param>. Read more

impl<T> Pointable for T

pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct parallel_disk_usage::data_tree::DataTree

Implementations

impl<Name, Data: Size> DataTree<Name, Data>

pub fn into_reflection(self) -> Reflection<Name, Data>

impl<Name, Data: Size> DataTree<Name, Data>

pub fn dir(name: Name, inode_size: Data, children: Vec<Self>) -> Self

pub fn file(name: Name, data: Data) -> Self

pub fn fixed_size_dir_constructor( inode_size: Data) -> impl Fn(Name, Vec<Self>) -> Self where Data: Copy,

impl<Name, Data: Size> DataTree<Name, Data>

pub fn name(&self) -> &Name

pub fn name_mut(&mut self) -> &mut Name

pub fn data(&self) -> Data

pub fn children(&self) -> &Vec<Self>

impl<Name, Data> DataTree<Name, Data> where Self: Send, Data: Size,

pub fn par_retain(&mut self, predicate: impl Fn(&Self) -> bool + Copy + Sync)

pub fn into_par_retained( self, predicate: impl Fn(&Self) -> bool + Copy + Sync) -> Self

pub fn par_cull_insignificant_data(&mut self, min_ratio: f32) where Data: Into<u64>,

impl<Name, Data> DataTree<Name, Data> where Self: Send, Data: Size,

pub fn par_sort_by( &mut self, compare: impl Fn(&Self, &Self) -> Ordering + Copy + Sync)

pub fn into_par_sorted( self, compare: impl Fn(&Self, &Self) -> Ordering + Copy + Sync) -> Self

Trait Implementations

impl<Name: Debug, Data: Debug + Size> Debug for DataTree<Name, Data>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<Name, Data: Size> From<DataTree<Name, Data>> for Reflection<Name, Data>

fn from(source: DataTree<Name, Data>) -> Self

impl<Data, GetData, Report> From<FsTreeBuilder<Data, GetData, Report>> for DataTree<OsStringDisplay, Data> where Data: Size + Send + Sync, GetData: Fn(&Metadata) -> Data + Sync, Report: Reporter<Data> + Sync,

fn from(builder: FsTreeBuilder<Data, GetData, Report>) -> Self

fn from(builder: TreeBuilder<Path, Name, Data, GetInfo, JoinPath>) -> Self

impl<Name: PartialEq, Data: PartialEq + Size> PartialEq<DataTree<Name, Data>> for DataTree<Name, Data>

fn eq(&self, other: &DataTree<Name, Data>) -> bool

fn ne(&self, other: &DataTree<Name, Data>) -> bool

impl<Name: Eq, Data: Eq + Size> Eq for DataTree<Name, Data>

impl<Name, Data: Size> StructuralEq for DataTree<Name, Data>

impl<Name, Data: Size> StructuralPartialEq for DataTree<Name, Data>

Auto Trait Implementations

impl<Name, Data> RefUnwindSafe for DataTree<Name, Data> where Data: RefUnwindSafe, Name: RefUnwindSafe,

impl<Name, Data> Send for DataTree<Name, Data> where Data: Send, Name: Send,

impl<Name, Data> Sync for DataTree<Name, Data> where Data: Sync, Name: Sync,

impl<Name, Data> Unpin for DataTree<Name, Data> where Data: Unpin, Name: Unpin,

impl<Name, Data> UnwindSafe for DataTree<Name, Data> where Data: UnwindSafe, Name: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<X> Pipe for X

fn pipe<Return, Function>(self, f: Function) -> Return where Function: FnOnce(Self) -> Return,

fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return where Function: FnOnce(&'a Self) -> Return,

fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return where Function: FnOnce(&'a mut Self) -> Return,

fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where Self: AsRef<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return where Self: AsMut<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where Self: Deref<Target = Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

fn pipe_deref_mut<'a, Param, Return, Function>( &'a mut self, f: Function) -> Return where Self: DerefMut<Target = Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return where Self: Borrow<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

fn pipe_borrow_mut<'a, Param, Return, Function>( &'a mut self, f: Function) -> Return where Self: BorrowMut<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

impl<X> Pipe for X

fn pipe<Return, Function>(self, f: Function) -> Return where Function: FnOnce(Self) -> Return,

fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return where Function: FnOnce(&'a Self) -> Return,

fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return where Function: FnOnce(&'a mut Self) -> Return,

fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where Self: AsRef<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return where Self: AsMut<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where Self: Deref<Target = Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

fn pipe_deref_mut<'a, Param, Return, Function>( &'a mut self, f: Function) -> Return where Self: DerefMut<Target = Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return where Self: Borrow<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a Param) -> Return,

fn pipe_borrow_mut<'a, Param, Return, Function>( &'a mut self, f: Function) -> Return where Self: BorrowMut<Param>, Param: 'a + ?Sized, Function: FnOnce(&'a mut Param) -> Return,

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn fixed_size_dir_constructor(
inode_size: Data
) -> impl Fn(Name, Vec<Self>) -> Self where
Data: Copy,

impl<Name, Data> DataTree<Name, Data> where
Self: Send,
Data: Size,

pub fn into_par_retained(
self,
predicate: impl Fn(&Self) -> bool + Copy + Sync
) -> Self

pub fn par_cull_insignificant_data(&mut self, min_ratio: f32) where
Data: Into<u64>,

impl<Name, Data> DataTree<Name, Data> where
Self: Send,
Data: Size,

pub fn par_sort_by(
&mut self,
compare: impl Fn(&Self, &Self) -> Ordering + Copy + Sync
)

pub fn into_par_sorted(
self,
compare: impl Fn(&Self, &Self) -> Ordering + Copy + Sync
) -> Self

impl<Data, GetData, Report> From<FsTreeBuilder<Data, GetData, Report>> for DataTree<OsStringDisplay, Data> where
Data: Size + Send + Sync,
GetData: Fn(&Metadata) -> Data + Sync,
Report: Reporter<Data> + Sync,

impl<Name, Data> RefUnwindSafe for DataTree<Name, Data> where
Data: RefUnwindSafe,
Name: RefUnwindSafe,

impl<Name, Data> Send for DataTree<Name, Data> where
Data: Send,
Name: Send,

impl<Name, Data> Sync for DataTree<Name, Data> where
Data: Sync,
Name: Sync,

impl<Name, Data> Unpin for DataTree<Name, Data> where
Data: Unpin,
Name: Unpin,

impl<Name, Data> UnwindSafe for DataTree<Name, Data> where
Data: UnwindSafe,
Name: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

fn pipe<Return, Function>(self, f: Function) -> Return where
Function: FnOnce(Self) -> Return,

fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return where
Function: FnOnce(&'a Self) -> Return,

fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return where
Function: FnOnce(&'a mut Self) -> Return,

fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
Self: AsRef<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,

fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return where
Self: AsMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,

fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
Self: Deref<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,

fn pipe_deref_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Return where
Self: DerefMut<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,

fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
Self: Borrow<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,

fn pipe_borrow_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Return where
Self: BorrowMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,

fn pipe<Return, Function>(self, f: Function) -> Return where
Function: FnOnce(Self) -> Return,

fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Return where
Function: FnOnce(&'a Self) -> Return,

fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Return where
Function: FnOnce(&'a mut Self) -> Return,

fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
Self: AsRef<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,

fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Return where
Self: AsMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,

fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
Self: Deref<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,

fn pipe_deref_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Return where
Self: DerefMut<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,

fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Return where
Self: Borrow<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,

fn pipe_borrow_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Return where
Self: BorrowMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,