Struct Expression 

pub struct Expression {
    pub kind: ExpressionKind,
    pub source_location: Option<Source>,
}

Resolved expression (all references resolved to paths, all literals typed)

Created during planning from AST Expression. All unresolved references are converted to FactPath/RulePath, and all literals are typed.

Fields

kind: ExpressionKind

source_location: Option<Source>

Implementations

impl Expression

pub fn new(kind: ExpressionKind, source_location: Source) -> Self

pub fn with_source( kind: ExpressionKind, source_location: Option<Source>, ) -> Self

Create an expression with an optional source location

pub fn get_source_text( &self, sources: &HashMap<String, String>, ) -> Option<String>

Get source text for this expression if available

pub fn collect_fact_paths(&self, facts: &mut HashSet<FactPath>)

Collect all FactPath references from this resolved expression tree

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Expression

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 PartialEq for Expression

fn eq(&self, other: &Expression) -> 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 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