Struct VariableDeclOrConstant 

pub struct VariableDeclOrConstant { /* private fields */ }

Union type representing either a variable declaration or constant definition.

VariableDeclOrConstant can hold either:

• A constant value (Constant) that is known at compile time
• A variable declaration (ValueType) that specifies the type for runtime binding

This allows the registry to handle both compile-time constants and runtime variables in a unified way.

Examples

use cel_cxx::variable::VariableDeclOrConstant;
use cel_cxx::types::ValueType;

// Create from constant
let constant_entry = VariableDeclOrConstant::new_constant(42i64);
assert!(constant_entry.is_constant());

// Create from declaration
let decl_entry = VariableDeclOrConstant::new(ValueType::String);
assert!(!decl_entry.is_constant());

Implementations

impl VariableDeclOrConstant

pub fn new_constant<T>(value: T) -> Self

where T: IntoConstant,

Creates a new constant entry.

Type Parameters

• T: The constant type, must implement IntoConstant

Parameters

• value: The constant value

Returns

New VariableDeclOrConstant containing the constant value

pub fn new(type: ValueType) -> Self

Creates a new variable declaration entry.

Parameters

• r#type: The variable type

Returns

New VariableDeclOrConstant containing the type declaration

pub fn is_constant(&self) -> bool

Returns whether this entry is a constant.

Returns

true if this entry contains a constant value, false if it’s a declaration

pub fn decl(&self) -> &ValueType

Gets the type of this entry.

For constants, this is the type of the constant value. For declarations, this is the declared variable type.

Returns

Reference to the ValueType of this entry

pub fn constant(&self) -> Option<&Constant>

Gets the constant value, if this entry is a constant.

Returns

Some(&Constant) if this is a constant entry, None if it’s a declaration

Trait Implementations

impl Debug for VariableDeclOrConstant

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

Formats the value using the given formatter.