Trait sourceview5::prelude::ToValue

source ·

pub trait ToValue {
    // Required methods
    fn to_value(&self) -> Value;
    fn value_type(&self) -> Type;
}

Expand description

Trait to convert a value to a Value.

Similar to other common conversion traits, the following invariants are guaranteed:

Invertibility: x.to_value().get().unwrap() == x. In words, FromValue is the inverse of ToValue.
Idempotence: x.to_value() == x.to_value().to_value(). In words, applying ToValue multiple times yields the same result as applying it once. Idempotence also applies the other way around: value.get::<Value>() is a no-op.

There is also the possibility to wrap values within values, see BoxedValue. All (un-)boxing needs to be done manually, and will be preserved under the conversion methods.

The conversion methods may cause values to be cloned, which may result in reference counter changes or heap allocations depending on the source and target type.

Required Methods§

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fn to_value(&self) -> Value

Convert a value to a Value.

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fn value_type(&self) -> Type

Returns the type identifier of self.

This is the type of the value to be returned by to_value.

Trait sourceview5::prelude::ToValueCopy item path

Required Methods§

fn to_value(&self) -> Value

fn value_type(&self) -> Type

Implementations on Foreign Types§

impl ToValue for &str

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for &Path

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for AxisUse

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for CrossingMode

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DevicePadFeature

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DeviceToolType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DragCancelReason

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for EventType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for FullscreenMode

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for GLError

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for Gravity

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for InputSource

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for KeyMatch

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for MemoryFormat

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for NotifyType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for ScrollDirection

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for ScrollUnit

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for SubpixelLayout

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for SurfaceEdge

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for TextureError

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for TitlebarGesture

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for TouchpadGesturePhase

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for VulkanError

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for BlendMode

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for Corner

fn to_value(&self) -> Value

fn value_type(&self) -> Type

Trait sourceview5::prelude::ToValue