Struct CastEntry 

pub struct CastEntry {
    pub src: DataType,
    pub target: DataType,
    pub context: CastContext,
    pub lossy: bool,
}

One row in the static cast catalog. Equivalent to a PG pg_cast tuple modulo the castfunc / castmethod fields — all reddb built-in casts today go through the schema::coerce module, so we only need to record the (src, target, context) triple plus a lossy flag that informs diagnostics.

Fields

src: DataType

target: DataType

context: CastContext

Minimum context in which this cast may be applied. Implicit means “always allowed”, Assignment means “INSERT/UPDATE RHS”, Explicit means “CAST(…) only”.

lossy: bool

Whether the cast may lose information (truncation, overflow). Diagnostics use this to warn users writing lossy implicit conversions (rare — the table avoids listing lossy casts at Implicit context on purpose).

Trait Implementations

impl Clone for CastEntry

fn clone(&self) -> CastEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CastEntry

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

Formats the value using the given formatter.

impl Copy for CastEntry