runmat_runtime/native/
root.rs

1use super::NativeValueRef;
2
3#[repr(transparent)]
4#[derive(Clone, Copy, Debug, Eq, PartialEq)]
5pub struct NativeRootKind(pub u32);
6
7impl NativeRootKind {
8    pub const LOCAL: Self = Self(0);
9    pub const OPERAND: Self = Self(1);
10    pub const TEMPORARY: Self = Self(2);
11    pub const CLOSURE: Self = Self(3);
12    pub const CONTINUATION: Self = Self(4);
13    pub const HOST: Self = Self(5);
14
15    pub const fn is_known(self) -> bool {
16        self.0 <= Self::HOST.0
17    }
18}
19
20/// One precise GC root visible at a native safepoint.
21#[repr(C)]
22#[derive(Clone, Copy, Debug, Eq, PartialEq)]
23pub struct NativeRoot {
24    pub value: NativeValueRef,
25    pub kind: NativeRootKind,
26    pub slot: u32,
27}
28
29/// Borrowed root slice. The host owns the backing allocation.
30#[repr(C)]
31#[derive(Clone, Copy, Debug)]
32pub struct NativeRootSet {
33    pub roots: *const NativeRoot,
34    pub count: usize,
35}
36
37impl Default for NativeRootSet {
38    fn default() -> Self {
39        Self {
40            roots: std::ptr::null(),
41            count: 0,
42        }
43    }
44}
runmat_runtime/native/root.rs

runmat_runtime/native/
root.rs
