Enum ConstValue 

pub enum ConstValue {
    Lit(LcnfLit),
    Ctor(String, u32, Vec<LcnfArg>),
    Unknown,
}

A known constant value discovered during analysis.

This forms a simple two-level lattice: Unknown (top – we know nothing) | Lit / Ctor (known concrete value)

Variants

Lit(LcnfLit)

A literal constant (nat or string).

Ctor(String, u32, Vec<LcnfArg>)

A fully applied constructor with known tag and arguments.

Unknown

Value is not statically known.

Implementations

impl ConstValue

pub fn is_known(&self) -> bool

Returns true if the value is statically known (not Unknown).

pub fn as_lit(&self) -> Option<&LcnfLit>

Attempt to extract a literal from the const value.

pub fn as_ctor(&self) -> Option<(&str, u32, &[LcnfArg])>

Attempt to extract constructor info from the const value.

Trait Implementations

impl Clone for ConstValue

fn clone(&self) -> ConstValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstValue

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

Formats the value using the given formatter.

impl Display for ConstValue

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

Formats the value using the given formatter.

impl PartialEq for ConstValue

fn eq(&self, other: &ConstValue) -> 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 Eq for ConstValue

impl StructuralPartialEq for ConstValue