Trait glib::value::FromValue

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pub unsafe trait FromValue<'a>: Sized {
    type Checker: ValueTypeChecker;

    // Required method
    unsafe fn from_value(value: &'a Value) -> Self;
}
Expand description

Trait to retrieve the contained value from a Value.

Usually this would not be used directly but from the get function on a Value

Required Associated Types§

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type Checker: ValueTypeChecker

Value type checker.

Required Methods§

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unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value.

Safety

Self::Checker::check() must be called first and must not fail.

Implementations on Foreign Types§

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impl<'a> FromValue<'a> for u8

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type Checker = GenericValueTypeChecker<u8>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a, T, C, E> FromValue<'a> for Option<T>where T: FromValue<'a, Checker = C> + StaticType, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + Sized + 'static,

Blanket implementation for all optional types.

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type Checker = ValueTypeOrNoneChecker<T, C, E>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for i64

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type Checker = GenericValueTypeChecker<i64>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for String

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impl<'a> FromValue<'a> for f64

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type Checker = GenericValueTypeChecker<f64>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for i32

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type Checker = GenericValueTypeChecker<i32>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for bool

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type Checker = GenericValueTypeChecker<bool>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for PathBuf

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impl<'a> FromValue<'a> for char

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type Checker = CharTypeChecker

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for Vec<String>

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impl<'a> FromValue<'a> for i8

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type Checker = GenericValueTypeChecker<i8>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for Vec<GString>

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impl<'a> FromValue<'a> for f32

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type Checker = GenericValueTypeChecker<f32>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for u64

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type Checker = GenericValueTypeChecker<u64>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a, 'b> FromValue<'a> for Vec<&'b FlagsValue>

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type Checker = FlagsTypeChecker

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for &'a [GStringPtr]

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type Checker = GenericValueTypeChecker<&'a [GStringPtr]>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for &'a str

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type Checker = GenericValueTypeOrNoneChecker<&'a str>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for u32

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type Checker = GenericValueTypeChecker<u32>

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unsafe fn from_value(value: &'a Value) -> Self

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impl<'a> FromValue<'a> for NonNull<Pointee>

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impl<'a> FromValue<'a> for Box<str>

Implementors§

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impl<'a> FromValue<'a> for &'a GStr

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impl<'a> FromValue<'a> for &'a Value

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impl<'a> FromValue<'a> for StrV

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impl<'a> FromValue<'a> for BindingFlags

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impl<'a> FromValue<'a> for GString

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impl<'a> FromValue<'a> for IOCondition

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impl<'a> FromValue<'a> for ILong

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impl<'a> FromValue<'a> for ULong

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impl<'a> FromValue<'a> for BoxedValue

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impl<'a> FromValue<'a> for Value

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impl<'a> FromValue<'a> for Pointer

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impl<'a, 'b> FromValue<'a> for &'b EnumValue

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type Checker = EnumTypeChecker

impl<'a> FromValue<'a> for RecordingSurface

impl<'a> FromValue<'a> for Rectangle

impl<'a> FromValue<'a> for FontType

impl<'a> FromValue<'a> for Surface

impl<'a> FromValue<'a> for Content

impl<'a> FromValue<'a> for HintStyle

impl<'a> FromValue<'a> for &'a RectangleInt

impl<'a> FromValue<'a> for Format

impl<'a> FromValue<'a> for Win32Surface

impl<'a> FromValue<'a> for Context

impl<'a> FromValue<'a> for LineCap

impl<'a> FromValue<'a> for PsSurface

impl<'a> FromValue<'a> for &'a RecordingSurface

impl<'a> FromValue<'a> for &'a Win32Surface

impl<'a> FromValue<'a> for &'a XCBSurface

impl<'a> FromValue<'a> for &'a QuartzSurface

impl<'a> FromValue<'a> for &'a PsSurface

impl<'a> FromValue<'a> for Device

impl<'a> FromValue<'a> for SubpixelOrder

impl<'a> FromValue<'a> for &'a ImageSurface

impl<'a> FromValue<'a> for Operator

impl<'a> FromValue<'a> for FillRule

impl<'a> FromValue<'a> for XCBSurface

impl<'a> FromValue<'a> for RegionOverlap

impl<'a> FromValue<'a> for LineJoin

impl<'a> FromValue<'a> for SvgSurface

impl<'a> FromValue<'a> for TextClusterFlags

impl<'a> FromValue<'a> for Matrix

impl<'a> FromValue<'a> for PathDataType

impl<'a> FromValue<'a> for &'a Matrix

impl<'a> FromValue<'a> for &'a Region

impl<'a> FromValue<'a> for &'a Rectangle

impl<'a> FromValue<'a> for RectangleInt

impl<'a> FromValue<'a> for QuartzSurface

impl<'a> FromValue<'a> for HintMetrics

impl<'a> FromValue<'a> for SurfaceType

impl<'a> FromValue<'a> for FontWeight

impl<'a> FromValue<'a> for ImageSurface

impl<'a> FromValue<'a> for &'a Surface

impl<'a> FromValue<'a> for Filter

impl<'a> FromValue<'a> for Extend

impl<'a> FromValue<'a> for &'a PdfSurface

impl<'a> FromValue<'a> for &'a Context

impl<'a> FromValue<'a> for DeviceType

impl<'a> FromValue<'a> for &'a SvgSurface

impl<'a> FromValue<'a> for Antialias

impl<'a> FromValue<'a> for Region

impl<'a> FromValue<'a> for PdfSurface

impl<'a> FromValue<'a> for PatternType

impl<'a> FromValue<'a> for FontSlant

impl<'a> FromValue<'a> for &'a Device

impl<'a> FromValue<'a> for PixbufAlphaMode

impl<'a> FromValue<'a> for Colorspace

impl<'a> FromValue<'a> for InterpType

impl<'a> FromValue<'a> for PixbufRotation

impl<'a> FromValue<'a> for PixbufError

impl<'a> FromValue<'a> for DBusSignalFlags

impl<'a> FromValue<'a> for DBusProxyFlags

impl<'a> FromValue<'a> for SubprocessFlags

impl<'a> FromValue<'a> for DriveStartFlags

impl<'a> FromValue<'a> for DBusMessageFlags

impl<'a> FromValue<'a> for TlsProtocolVersion

impl<'a> FromValue<'a> for SocketProtocol

impl<'a> FromValue<'a> for FileMonitorEvent

impl<'a> FromValue<'a> for MountMountFlags

impl<'a> FromValue<'a> for TlsPasswordFlags

impl<'a> FromValue<'a> for DBusCallFlags

impl<'a> FromValue<'a> for ResolverError

impl<'a> FromValue<'a> for MountUnmountFlags

impl<'a> FromValue<'a> for ConverterResult

impl<'a> FromValue<'a> for FileQueryInfoFlags

impl<'a> FromValue<'a> for ConverterFlags

impl<'a> FromValue<'a> for FileMonitorFlags

impl<'a> FromValue<'a> for ApplicationFlags

impl<'a> FromValue<'a> for SocketClientEvent

impl<'a> FromValue<'a> for SocketType

impl<'a> FromValue<'a> for ResolverRecordType

impl<'a> FromValue<'a> for FileMeasureFlags

impl<'a> FromValue<'a> for EmblemOrigin

impl<'a> FromValue<'a> for SocketFamily

impl<'a> FromValue<'a> for AppInfoCreateFlags

impl<'a> FromValue<'a> for TlsError

impl<'a> FromValue<'a> for BusNameOwnerFlags

impl<'a> FromValue<'a> for CredentialsType

impl<'a> FromValue<'a> for PollableReturn

impl<'a> FromValue<'a> for SocketMsgFlags

impl<'a> FromValue<'a> for DriveStartStopType

impl<'a> FromValue<'a> for BusType

impl<'a> FromValue<'a> for ResourceError

impl<'a> FromValue<'a> for SettingsBindFlags

impl<'a> FromValue<'a> for AskPasswordFlags

impl<'a> FromValue<'a> for DBusServerFlags

impl<'a> FromValue<'a> for FileAttributeType

impl<'a> FromValue<'a> for IOErrorEnum

impl<'a> FromValue<'a> for TlsRehandshakeMode

impl<'a> FromValue<'a> for PasswordSave

impl<'a> FromValue<'a> for DBusMessageType

impl<'a> FromValue<'a> for FileCopyFlags

impl<'a> FromValue<'a> for FileCreateFlags

impl<'a> FromValue<'a> for FileType

impl<'a> FromValue<'a> for CoverageLevel

impl<'a> FromValue<'a> for AttrType

impl<'a> FromValue<'a> for Alignment

impl<'a> FromValue<'a> for GravityHint

impl<'a> FromValue<'a> for Direction

impl<'a> FromValue<'a> for BidiType

impl<'a> FromValue<'a> for BaselineShift

impl<'a> FromValue<'a> for ShowFlags

impl<'a> FromValue<'a> for RenderPart

impl<'a> FromValue<'a> for Underline

impl<'a> FromValue<'a> for Overline

impl<'a> FromValue<'a> for ShapeFlags

impl<'a> FromValue<'a> for EllipsizeMode

impl<'a> FromValue<'a> for Script

impl<'a> FromValue<'a> for Style

impl<'a> FromValue<'a> for WrapMode

impl<'a> FromValue<'a> for Gravity

impl<'a> FromValue<'a> for FontScale

impl<'a> FromValue<'a> for TextTransform

impl<'a> FromValue<'a> for Variant

impl<'a> FromValue<'a> for TabAlign

impl<'a> FromValue<'a> for Stretch

impl<'a> FromValue<'a> for Weight

impl<'a> FromValue<'a> for FontMask