Struct AssignmentStateMap 

pub struct AssignmentStateMap { /* private fields */ }

A mapping of variables to their assignment states at a point in the program.

Variables are indexed by their declaration node ID (NodeIndex).

Implementations

impl AssignmentStateMap

pub fn new() -> Self

Create a new empty state map.

pub fn get(&self, var_id: NodeIndex) -> AssignmentState

Get the assignment state for a variable.

pub fn set(&mut self, var_id: NodeIndex, state: AssignmentState)

Set the assignment state for a variable.

pub fn mark_assigned(&mut self, var_id: NodeIndex)

Mark a variable as definitely assigned.

pub fn merge(&mut self, other: &Self)

Merge another state map into this one.

This is used at control flow join points where multiple paths converge.

pub fn is_definite(&self) -> bool

Check if all variables are in a definite state (no MaybeAssigned).

Trait Implementations

impl Clone for AssignmentStateMap

fn clone(&self) -> AssignmentStateMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AssignmentStateMap

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

Formats the value using the given formatter.

impl Default for AssignmentStateMap

fn default() -> Self

Returns the “default value” for a type.