Trait 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§

Source

fn to_value(&self) -> Value

Convert a value to a Value.

Source

fn value_type(&self) -> Type

Returns the type identifier of self.

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

ToValue

Trait ToValue Copy 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 &[&str]

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for BusType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for ConverterResult

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for CredentialsType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DBusError

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DBusMessageByteOrder

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DBusMessageHeaderField

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DBusMessageType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DataStreamByteOrder

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DataStreamNewlineType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for DriveStartStopType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for EmblemOrigin

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for FileAttributeStatus

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for FileAttributeType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for FileMonitorEvent

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for FileType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for FilesystemPreviewType

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for IOErrorEnum

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for MemoryMonitorWarningLevel

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for MountOperationResult

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for NetworkConnectivity

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for NotificationPriority

fn to_value(&self) -> Value

fn value_type(&self) -> Type

impl ToValue for PasswordSave

fn to_value(&self) -> Value

Trait ToValue