Struct Expression 

pub struct Expression(pub String);

An unbound SPQL expression in its protobuf encoding, base64-encoded with the standard alphabet and padding, at most 512 KiB before encoding. The Rust SDK’s Expression type produces it. The service binds it against the exact input schema.

Tuple Fields

0: String

Implementations

impl Expression

pub fn call( id: impl Into<String>, arguments: Vec<Self>, ) -> Result<Self, ScandalError>

Construct an unbound SPQL call without linking its private implementation.

Pass literal arguments as literal expressions. The execution host resolves the canonical SPQL ID, selects the overload that accepts the argument types and binds it.

pub fn and(&self, other: &Self) -> Result<Self, ScandalError>

The conjunction of this expression and other: rows both accept.

pub fn new(expression: VortexExpression) -> Result<Self, ScandalError>

Serialize a Vortex expression after checking its structural work bounds.

pub fn to_vortex( &self, session: &VortexSession, ) -> Result<VortexExpression, ScandalError>

Decode using the execution host’s function and data-type registries.

This does not coerce or bind types. Unknown function IDs fail unless the supplied session explicitly permits them. Callers must separately check execution capabilities and bind against the exact input schema.

pub fn to_bytes(&self) -> Result<Vec<u8>, ScandalError>

The unbound Vortex protobuf, for a binary transport.

pub fn encoded_len(&self) -> usize

Size of the encoded protobuf, without decoding it.

pub fn from_bytes(bytes: &[u8]) -> Result<Self, ScandalError>

Wrap Vortex protobuf bytes, rejecting unbounded expression work.

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expression

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Expression

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'de> DeserializeStrict<'de> for Expression

fn deserialize_strict<D: Deserializer<'de>>( deserializer: D, ) -> Result<Self, D::Error>

Deserialize a request value, including strict decoding of its children.

impl Display for Expression

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

Formats the value using the given formatter.

impl Eq for Expression

impl PartialEq for Expression

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Expression

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Expression