Struct glib::variant::Variant

pub struct Variant(_);

A generic immutable value capable of carrying various types.

See the module documentation for more details.

Implementations

impl Variant

pub fn type_(&self) -> &VariantTy

Returns the type of the value.

pub fn is<T: StaticVariantType>(&self) -> bool

Returns true if the type of the value corresponds to T.

pub fn get<T: FromVariant>(&self) -> Option<T>

Tries to extract a value of type T.

Returns Some if T matches the variant's type.

pub fn get_str(&self) -> Option<&str>

Tries to extract a &str.

Returns Some if the variant has a string type (s, o or g type strings).

pub fn from_bytes<T: StaticVariantType>(bytes: &Bytes) -> Self

Constructs a new serialised-mode GVariant instance.

pub unsafe fn from_bytes_trusted<T: StaticVariantType>(bytes: &Bytes) -> Self

Constructs a new serialised-mode GVariant instance.

This is the same as from_bytes, except that checks on the passed data are skipped.

You should not use this function on data from external sources.

Safety

Since the data is not validated, this is potentially dangerous if called on bytes which are not guaranteed to have come from serialising another Variant. The caller is responsible for ensuring bad data is not passed in.

pub fn get_data_as_bytes(&self) -> Bytes

Returns the serialised form of a GVariant instance.

Trait Implementations

impl Clone for Variant

fn clone(&self) -> Variant

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Variant

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

Formats the value using the given formatter.

impl Display for Variant

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

Formats the value using the given formatter.

impl Eq for Variant

impl<T: ToVariant> From<T> for Variant

fn from(value: T) -> Variant

Performs the conversion.

impl From<Variant> for VariantDict

fn from(other: Variant) -> Self

Performs the conversion.

impl Hash for Variant

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl PartialEq<Variant> for Variant

fn eq(&self, other: &Self) -> bool

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Variant> for Variant

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Send for Variant

impl StaticType for Variant

fn static_type() -> Type

Returns the type identifier of Self.

impl Sync for Variant