Struct BlockStackLayout 

pub struct BlockStackLayout {
    pub slots: SmallVec<[Option<ValueId>; 8]>,
}

Represents a stack layout for a block - the values that should be on the stack when entering or exiting a block, from top to bottom.

Fields

slots: SmallVec<[Option<ValueId>; 8]>

Stack slots from top (index 0) to bottom. None means “don’t care” / junk slot.

Implementations

impl BlockStackLayout

pub fn new() -> BlockStackLayout

Creates an empty layout.

pub fn from_values( values: impl IntoIterator<Item = ValueId>, ) -> BlockStackLayout

Creates a layout with the given values (first = top of stack).

pub fn from_stack_model(model: &StackModel) -> BlockStackLayout

Creates a layout from a StackModel.

pub fn depth(&self) -> usize

Returns the depth (number of slots).

pub fn is_empty(&self) -> bool

Returns true if the layout is empty.

pub fn get(&self, depth: usize) -> Option<ValueId>

Gets the value at a given depth (0 = top).

pub fn to_target_layout(&self) -> Vec<TargetSlot>

Converts to a target layout for the shuffler.

pub fn find(&self, value: ValueId) -> Option<usize>

Finds the position of a value in the layout.

pub fn contains(&self, value: ValueId) -> bool

Returns true if the layout contains a value.

Trait Implementations

impl Clone for BlockStackLayout

fn clone(&self) -> BlockStackLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlockStackLayout

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

Formats the value using the given formatter.

impl Default for BlockStackLayout

fn default() -> BlockStackLayout

Returns the “default value” for a type.

impl Eq for BlockStackLayout

impl PartialEq for BlockStackLayout

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