Struct Versions 

pub struct Versions {
    pub versions: BTreeSet<Version>,
}

A structure of package versions.

Fields

versions: BTreeSet<Version>

Package versions.

Implementations

impl Versions

pub fn new(versions: BTreeSet<Version>) -> Self

Creates package versions.

pub fn read(r: &mut dyn Read) -> Result<Self>

Reads package versions from the reader.

pub fn write(&self, w: &mut dyn Write) -> Result<()>

Writes the package versions to the writer.

pub fn load<P: AsRef<Path>>(path: P) -> Result<Self>

Loads package versions from the file.

pub fn load_opt<P: AsRef<Path>>(path: P) -> Result<Option<Self>>

Loads package versions from the file if the file exists, otherwise this method returns None.

pub fn save<P: AsRef<Path>>(&self, path: P) -> Result<()>

Saves the package versions to a file.

Trait Implementations

impl Clone for Versions

fn clone(&self) -> Versions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Versions

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Versions

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Versions

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.