5 (func $f1 (export "funcref") (param $x funcref) (result i32)
6 (ref.is_null (local.get $x))
8 (func $f2 (export "externref") (param $x externref) (result i32)
9 (ref.is_null (local.get $x))
11 (func $f3 (param $x (ref null $t)) (result i32)
12 (ref.is_null (local.get $x))
14 (func $f3' (export "ref-null") (result i32)
15 (call $f3 (ref.null $t))
19 (table $t2 2 externref)
20 (table $t3 2 (ref null $t))
21 (elem (table $t1) (i32.const 1) func $dummy)
22 (elem (table $t3) (i32.const 1) (ref $t) (ref.func $dummy))
24 (func (export "init") (param $r externref)
25 (table.set $t2 (i32.const 1) (local.get $r))
27 (func (export "deinit")
28 (table.set $t1 (i32.const 1) (ref.null func))
29 (table.set $t2 (i32.const 1) (ref.null extern))
30 (table.set $t3 (i32.const 1) (ref.null $t))
33 (func (export "funcref-elem") (param $x i32) (result i32)
34 (call $f1 (table.get $t1 (local.get $x)))
36 (func (export "externref-elem") (param $x i32) (result i32)
37 (call $f2 (table.get $t2 (local.get $x)))
39 (func (export "ref-elem") (param $x i32) (result i32)
40 (call $f3 (table.get $t3 (local.get $x)))
44 (assert_return (invoke "funcref" (ref.null func)) (i32.const 1))
45 (assert_return (invoke "externref" (ref.null extern)) (i32.const 1))
46 (assert_return (invoke "ref-null") (i32.const 1))
48 (assert_return (invoke "externref" (ref.extern 1)) (i32.const 0))
50 (invoke "init" (ref.extern 0))
52 (assert_return (invoke "funcref-elem" (i32.const 0)) (i32.const 1))
53 (assert_return (invoke "externref-elem" (i32.const 0)) (i32.const 1))
54 (assert_return (invoke "ref-elem" (i32.const 0)) (i32.const 1))
56 (assert_return (invoke "funcref-elem" (i32.const 1)) (i32.const 0))
57 (assert_return (invoke "externref-elem" (i32.const 1)) (i32.const 0))
58 (assert_return (invoke "ref-elem" (i32.const 1)) (i32.const 0))
62 (assert_return (invoke "funcref-elem" (i32.const 0)) (i32.const 1))
63 (assert_return (invoke "externref-elem" (i32.const 0)) (i32.const 1))
64 (assert_return (invoke "ref-elem" (i32.const 0)) (i32.const 1))
66 (assert_return (invoke "funcref-elem" (i32.const 1)) (i32.const 1))
67 (assert_return (invoke "externref-elem" (i32.const 1)) (i32.const 1))
68 (assert_return (invoke "ref-elem" (i32.const 1)) (i32.const 1))
73 (func (param $r (ref $t)) (drop (ref.is_null (local.get $r))))
74 (func (param $r (ref func)) (drop (ref.is_null (local.get $r))))
75 (func (param $r (ref extern)) (drop (ref.is_null (local.get $r))))
79 (module (func $ref-vs-num (param i32) (ref.is_null (local.get 0))))
83 (module (func $ref-vs-empty (ref.is_null)))