Enum ComputedParamsArg 

pub enum ComputedParamsArg<'a> {
    Optional(&'a str),
    Required(&'a str),
    Unsupported,
}

The parenthesized argument of a @computed(...) attribute, however it parses.

Variants

Optional(&'a str)

params: <Type>? — the only argument form the language accepts.

Required(&'a str)

params: <Type> without the trailing ? — a recognized shape (a plausible typo, not garbage), but required computed params aren’t supported yet: v1 always makes params optional, since a required param would make plain CRUD reads unsatisfiable and there’s no wire slot for one on non-read paths.

Unsupported

Any other argument spelling (wrong keyword, missing colon, not a valid identifier, …).

Trait Implementations

impl<'a> Clone for ComputedParamsArg<'a>

fn clone(&self) -> ComputedParamsArg<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ComputedParamsArg<'a>

impl<'a> Debug for ComputedParamsArg<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for ComputedParamsArg<'a>

impl<'a> PartialEq for ComputedParamsArg<'a>

fn eq(&self, other: &ComputedParamsArg<'a>) -> 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<'a> StructuralPartialEq for ComputedParamsArg<'a>