Struct ConfigVar 

pub struct ConfigVar<T>(pub ReadVar<T>);

A wrapper around ReadVar<T> that implements PartialEq via backing-variable identity (VarEqBacking).

Use this in config structs where a ReadVar field needs equality comparison for config merging. Since ReadVar deliberately does not implement PartialEq (its values aren’t known at flow-resolution time), ConfigVar provides identity-based comparison instead.

Example

flowey_config! {
    pub struct Config {
        pub verbose: Option<ConfigVar<bool>>,
    }
}

Tuple Fields

0: ReadVar<T>

Trait Implementations

impl<T: Serialize + DeserializeOwned + PartialEq + Eq + Clone> ClaimVar for ConfigVar<T>

type Claimed = ReadVar<T, VarClaimed>

The claimed version of Self.

fn claim(self, ctx: &mut StepCtx<'_>) -> ClaimedReadVar<T>

Claim the Var for this step, allowing it to be accessed at runtime.

impl<T: Serialize + DeserializeOwned> Clone for ConfigVar<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for ConfigVar<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for ConfigVar<T>

where T: DeserializeOwned,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: Serialize + DeserializeOwned + PartialEq + Eq + Clone> From<ReadVar<T>> for ConfigVar<T>

fn from(v: ReadVar<T>) -> Self

Converts to this type from the input type.

impl<T: Serialize + DeserializeOwned + PartialEq + Eq + Clone> PartialEq for ConfigVar<T>

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Serialize for ConfigVar<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.