Struct cedar_policy_core::entities::ValueParser

pub struct ValueParser<'e> { /* private fields */ }

Struct used to parse Cedar values from JSON.

Implementations

impl<'e> ValueParser<'e>

pub fn new(extensions: Extensions<'e>) -> Self

Create a new ValueParser.

pub fn val_into_rexpr( &self, val: Value, expected_ty: Option<&SchemaType>, ctx: impl Fn() -> JsonDeserializationErrorContext + Clone, ) -> Result<RestrictedExpr, JsonDeserializationError>

internal function that converts a Cedar value (in JSON) into a RestrictedExpr. Performs schema-based parsing if expected_ty is provided.

pub fn type_of_rexpr( &self, rexpr: BorrowedRestrictedExpr<'_>, ctx: impl Fn() -> JsonDeserializationErrorContext + Clone, ) -> Result<SchemaType, JsonDeserializationError>

Get the SchemaType of a restricted expression.

This isn’t possible for general Exprs (without a Request, full schema, etc), but is possible for restricted expressions, given the information in Extensions.

Trait Implementations

impl<'e> Clone for ValueParser<'e>

fn clone(&self) -> ValueParser<'e>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'e> Debug for ValueParser<'e>

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

Formats the value using the given formatter.