1;;! gc = true
2
3(module
4  (type $res-i32 (func (result i32)))
5  (table $t2 2 externref)
6  (table $t3 3 funcref)
7  (table $t4 (ref null $res-i32) (elem (ref.func $returns-five)))
8  (elem (table $t3) (i32.const 1) func $returns-five)
9  (func $returns-five (result i32) (i32.const 5))
10
11  (func (export "init") (param $r externref)
12    (table.set $t2 (i32.const 1) (local.get $r))
13    (table.set $t3 (i32.const 2) (table.get $t3 (i32.const 1)))
14  )
15
16  (func (export "get-externref") (param $i i32) (result externref)
17    (table.get $t2 (local.get $i))
18  )
19  (func $f3 (export "get-funcref") (param $i i32) (result funcref)
20    (table.get $t3 (local.get $i))
21  )
22  (func $f4 (export "get-typed-func") (param $i i32) (result (ref $res-i32))
23    (ref.as_non_null (table.get $t4 (local.get $i)))
24  )
25
26  (func (export "is_null-funcref") (param $i i32) (result i32)
27    (ref.is_null (call $f3 (local.get $i)))
28  )
29  (func (export "get-typed-and-call") (param $i i32) (result i32) (call_ref $res-i32 (call $f4 (local.get $i))))
30)
31
32(invoke "init" (ref.extern 1))
33
34(assert_return (invoke "get-externref" (i32.const 0)) (ref.null extern))
35(assert_return (invoke "get-externref" (i32.const 1)) (ref.extern 1))
36
37(assert_return (invoke "get-funcref" (i32.const 0)) (ref.null func))
38(assert_return (invoke "is_null-funcref" (i32.const 1)) (i32.const 0))
39(assert_return (invoke "is_null-funcref" (i32.const 2)) (i32.const 0))
40
41(assert_return (invoke "get-typed-and-call" (i32.const 0)) (i32.const 5))
42
43(assert_trap (invoke "get-externref" (i32.const 2)) "out of bounds table access")
44(assert_trap (invoke "get-funcref" (i32.const 3)) "out of bounds table access")
45(assert_trap (invoke "get-typed-func" (i32.const 2)) "out of bounds table access")
46(assert_trap (invoke "get-externref" (i32.const -1)) "out of bounds table access")
47(assert_trap (invoke "get-funcref" (i32.const -1)) "out of bounds table access")
48(assert_trap (invoke "get-typed-func" (i32.const -1)) "out of bounds table access")
49
50
51;; Type errors
52
53(assert_invalid
54  (module
55    (table $t 10 externref)
56    (func $type-index-empty-vs-i32 (result externref)
57      (table.get $t)
58    )
59  )
60  "type mismatch"
61)
62(assert_invalid
63  (module
64    (table $t 10 externref)
65    (func $type-index-f32-vs-i32 (result externref)
66      (table.get $t (f32.const 1))
67    )
68  )
69  "type mismatch"
70)
71
72(assert_invalid
73  (module
74    (table $t 10 externref)
75    (func $type-result-externref-vs-empty
76      (table.get $t (i32.const 0))
77    )
78  )
79  "type mismatch"
80)
81(assert_invalid
82  (module
83    (table $t 10 externref)
84    (func $type-result-externref-vs-funcref (result funcref)
85      (table.get $t (i32.const 1))
86    )
87  )
88  "type mismatch"
89)
90
91(assert_invalid
92  (module
93    (table $t1 1 funcref)
94    (table $t2 1 externref)
95    (func $type-result-externref-vs-funcref-multi (result funcref)
96      (table.get $t2 (i32.const 0))
97    )
98  )
99  "type mismatch"
100)
101