Struct FrameStateSlot 

pub struct FrameStateSlot<'a> { /* private fields */ }

Parser for a frame state slot descriptor.

This provides the ability to extract offsets and types for locals and for the stack given a stack shape.

Implementations

impl<'a> FrameStateSlot<'a>

pub fn parse(descriptor: &'a [u8]) -> Result<FrameStateSlot<'a>>

Parse a slot descriptor.

This parses the descriptor bytes as provided by FrameTable::frame_descriptor.

pub fn func_key(&self) -> FuncKey

Get the FuncKey for the function that produced this frame slot.

pub fn locals( &self, ) -> impl Iterator<Item = (FrameStateSlotOffset, FrameValType)>

Get the local offsets and types.

pub fn local( &self, index: usize, ) -> Option<(FrameStateSlotOffset, FrameValType)>

Get the type and offset for a given local.

pub fn num_locals(&self) -> usize

Get the number of locals in the frame.

pub fn stack( &self, shape: FrameStackShape, ) -> impl Iterator<Item = (FrameStateSlotOffset, FrameValType)>

Get the offsets and types for operand stack values, from top of stack (most recently pushed) down.

pub fn stack_and_locals( &self, shape: FrameStackShape, ) -> impl Iterator<Item = (FrameStateSlotOffset, FrameValType)> + '_

Returns an iterator over all storage in this frame.