Struct glib::value::TypedValue
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pub struct TypedValue<T>(_, _);
A statically typed Value
.
It dereferences to Value
and can be used everywhere Value
references are
accepted.
See the module documentation for more details.
Methods
impl<'a, T: FromValueOptional<'a> + SetValue> TypedValue<T>
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pub fn get(&'a self) -> Option<T>
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Returns the value.
Types that don't support a None
value always return Some
. See
get_some
.
pub fn get_some(&'a self) -> T where
T: FromValue<'a>,
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T: FromValue<'a>,
Returns the value.
This method is only available for types that don't support a None
value.
pub fn set<U: ?Sized + SetValueOptional>(&mut self, value: Option<&U>) where
T: Borrow<U>,
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T: Borrow<U>,
Sets the value.
This method is only available for types that support a None
value.
pub fn set_none(&mut self) where
T: SetValueOptional,
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T: SetValueOptional,
Sets the value to None
.
This method is only available for types that support a None
value.
pub fn set_some<U: ?Sized + SetValue>(&mut self, value: &U) where
T: Borrow<U>,
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T: Borrow<U>,
Sets the value.
Methods from Deref<Target = Value>
pub fn get<'a, T: FromValueOptional<'a>>(&'a self) -> Option<T>
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Tries to get a value of type T
.
Returns Some
if the type is correct and the value is not None
.
This function doesn't distinguish between type mismatches and correctly
typed None
values. Use downcast
or is
for that.
pub fn is<'a, T: FromValueOptional<'a> + SetValue>(&self) -> bool
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Returns true
if the type of the value corresponds to T
.
pub fn type_(&self) -> Type
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Returns the type of the value.
Trait Implementations
impl<T> From<TypedValue<T>> for Value
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fn from(value: TypedValue<T>) -> Self
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Performs the conversion.
impl<T> Clone for TypedValue<T>
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fn clone(&self) -> Self
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
impl<T> Debug for TypedValue<T>
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fn fmt(&self, f: &mut Formatter) -> Result<(), Error>
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Formats the value using the given formatter. Read more
impl<T> Deref for TypedValue<T>
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type Target = Value
The resulting type after dereferencing.
fn deref(&self) -> &Value
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Dereferences the value.
impl<T> DerefMut for TypedValue<T>
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impl<'a, T: FromValueOptional<'a> + SetValueOptional> From<Option<&'a T>> for TypedValue<T>
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impl<'a, T: FromValueOptional<'a> + SetValue> From<&'a T> for TypedValue<T>
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impl<'a> From<Option<&'a str>> for TypedValue<String>
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impl<'a> From<&'a str> for TypedValue<String>
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impl<'a> From<TypedValue<&'a str>> for TypedValue<String>
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fn from(value: TypedValue<&str>) -> Self
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Performs the conversion.
impl<'a> From<TypedValue<String>> for TypedValue<&'a str>
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fn from(value: TypedValue<String>) -> Self
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Performs the conversion.