Class FrameStackShape

crates/environ/src/frame_table.rs:13–13

/// An index into the table of stack shapes.
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
pub struct FrameStackShape(pub(crate) u32);
impl FrameStackShape {
    pub(crate) fn index(self) -> usize {
        usize::try_from(self.0).unwrap()