Function reference_type

crates/cranelift/src/lib.rs:213–222

Returns the reference type to use for the provided wasm type.

(wasm_ht: WasmHeapType, pointer_type: ir::Type)

/// Returns the reference type to use for the provided wasm type.
fn reference_type(wasm_ht: WasmHeapType, pointer_type: ir::Type) -> ir::Type {
    match wasm_ht.top() {
        WasmHeapTopType::Func => pointer_type,
        WasmHeapTopType::Any | WasmHeapTopType::Extern | WasmHeapTopType::Exn => ir::types::I32,
        WasmHeapTopType::Cont => {
            // VMContObj is 2 * pointer_size (pointer + usize revision)
            ir::Type::int((2 * pointer_type.bits()).try_into().unwrap()).unwrap()
        }
    }
}

// List of namespaces which are processed in `mach_reloc_to_reloc` below.