Struct InlineFrame 

pub(crate) struct InlineFrame<'ctx, 'tcx> {
    pub body: &'ctx Body<'tcx>,
    pub def_id: DefId,
    pub saved_locals: FxHashMap<Local, VmValue<'ctx, 'tcx>>,
}

A saved caller context pushed during cross-function inline. Nested inlining (a callee that itself inlines another callee) pushes multiple frames; a single Option slot would clobber the outer caller’s context on the inner exit, so a stack is required.

Fields

body: &'ctx Body<'tcx>

def_id: DefId

saved_locals: FxHashMap<Local, VmValue<'ctx, 'tcx>>