Enum Conditional

pub enum Conditional {
    Ternary(LogicalOr, Box<Expression>, Box<Conditional>),
    Primary(Box<Primary>),
}

A conditional expression node in the abstract syntax tree.

Represents a ternary conditional expression (condition ? true_expr : false_expr) or a lower-precedence expression that has been flattened in the AST.

The enum uses AST flattening optimization where each expression type includes variants for all lower-precedence expression types. This allows efficient evaluation without deep recursion.

Variants

Ternary(LogicalOr, Box<Expression>, Box<Conditional>)

Represents a ternary conditional operation with:

• condition: The condition expression (must evaluate to a boolean or truthy value)
• true_expr: The expression to evaluate if condition is truthy
• false_expr: The expression to evaluate if condition is falsy

Primary(Box<Primary>)

Represents a flattened AST node containing a lower-precedence expression. This variant is used when no ternary operator is present in the expression.

Variants

Ternary(LogicalOr, Box<Expression>, Box<Conditional>)

Primary(Box<Primary>)

Primary flattened AST optimization

Trait Implementations

impl Clone for Conditional

fn clone(&self) -> Conditional

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Conditional

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

Formats the value using the given formatter.

impl Display for Conditional

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

Formats the value using the given formatter.

impl ExpressionLike for Conditional

fn evaluate(&self, context: &mut dyn ContextLike) -> Result<Value>

Evaluate the expression within the given context.

fn write(&self, writer: &mut Writer)

Write this expression to the provided writer.

fn to_sanitized(&self) -> String

Convert this expression to a sanitized string representation.

fn to_formula(&self) -> String

Convert this expression to a formula string representation.

impl PartialEq for Conditional

fn eq(&self, other: &Conditional) -> 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 StructuralPartialEq for Conditional