Struct design_pattern_examples_rust::composite::composite_direntry::DirEntry

pub struct DirEntry {
    name: String,
    timestamp: String,
    length: i32,
    length_set: bool,
    entry_type: FileDirTypes,
    children: Vec<Rc<RefCell<dyn FileDirEntry>>>,
}

Represents the directory entry allowed in the hierarchy for the Composite design pattern example. A directory can contain other directories and file entries.

Fields

name: String

Name of the directory.

timestamp: String

Timestamp of the directory (expressed as a string).

length: i32

Length of all children of the directory (computed on first call to the length() method.)

length_set: bool

True if the length has been computed (on the first call to the length() method).

entry_type: FileDirTypes

Type of the entry as a value from the FileDirTypes enumeration.

children: Vec<Rc<RefCell<dyn FileDirEntry>>>

Vector of FileDirEntry objects representing the children of this directory.

Implementations

impl DirEntry

pub fn new(name: &str, timestamp: &str) -> DirEntry

Constructor for DirEntry

Parameters

• name

  Name of the file.

• timestamp

  String containing the timestamp for the file.

Returns

Returns the new DirEntry object.

pub fn add_child(&mut self, entry: Rc<RefCell<dyn FileDirEntry>>)

Add the specified FileDirEntry object as a child of this directory.

Trait Implementations

impl FileDirEntry for DirEntry

fn entry_type(&self) -> &FileDirTypes

Returns a reference to the FileDirTypes value representing the type of entry this trait represents.

fn name(&self) -> &str

Returns a reference to the name of this entry.

fn timestamp(&self) -> &str

Returns a reference to the timestamp of this entry.

fn length(&mut self) -> i32

Returns the length of this entry.

fn children(&self) -> Option<&Vec<Rc<RefCell<dyn FileDirEntry>>>>

Returns an Option<> containing a reference to the vector of the children of this entry. If there are no children, returns None.