wasmtime-cli 44.0.1

Command-line interface for Wasmtime
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166

;; Test table section structure

(module (table 0 funcref))
(module (table 1 funcref))
(module (table 0 0 funcref))
(module (table 0 1 funcref))
(module (table 1 256 funcref))
(module (table 0 65536 funcref))
(module definition (table 0xffff_ffff funcref))
(module (table 0 0xffff_ffff funcref))

(module (table 1 (ref null func)))
(module (table 1 (ref null extern)))
(module (table 1 (ref null $t)) (type $t (func)))

(module (table 0 funcref) (table 0 funcref))
(module (table (import "spectest" "table") 0 funcref) (table 0 funcref))

(module (table 0 funcref (ref.null func)))
(module (table 1 funcref (ref.null func)))
(module (table 1 (ref null func) (ref.null func)))

(assert_invalid (module (elem (i32.const 0))) "unknown table")
(assert_invalid (module (elem (i32.const 0) $f) (func $f)) "unknown table")

(assert_invalid
  (module (table 1 0 funcref))
  "size minimum must not be greater than maximum"
)
(assert_invalid
  (module (table 0xffff_ffff 0 funcref))
  "size minimum must not be greater than maximum"
)

(assert_invalid
  (module quote "(table 0x1_0000_0000 funcref)")
  "table size"
)
(assert_invalid
  (module quote "(table 0x1_0000_0000 0x1_0000_0000 funcref)")
  "table size"
)
(assert_invalid
  (module quote "(table 0 0x1_0000_0000 funcref)")
  "table size"
)


;; Elem segments with no table

(assert_invalid (module (elem (i32.const 0))) "unknown table")
(assert_invalid (module (elem (i32.const 0) $f) (func $f)) "unknown table")

(assert_invalid
  (module (table 1 (ref null func) (i32.const 0)))
  "type mismatch"
)
(assert_invalid
  (module (table 1 (ref func) (ref.null extern)))
  "type mismatch"
)
(assert_invalid
  (module (type $t (func)) (table 1 (ref $t) (ref.null func)))
  "type mismatch"
)
(assert_invalid
  (module (table 1 (ref func) (ref.null func)))
  "type mismatch"
)
(assert_invalid
  (module (table 0 (ref func)))
  "type mismatch"
)
(assert_invalid
  (module (table 0 (ref extern)))
  "type mismatch"
)
(assert_invalid
  (module (type $t (func)) (table 0 (ref $t)))
  "type mismatch"
)


;; Table initializer

(module
  (global (export "g") (ref $f) (ref.func $f))
  (type $f (func))
  (func $f)
)
(register "M")

(module
  (global $g (import "M" "g") (ref $dummy))

  (type $dummy (func))
  (func $dummy)

  (table $t1 10 funcref)
  (table $t2 10 funcref (ref.func $dummy))
  (table $t3 10 (ref $dummy) (ref.func $dummy))
  (table $t4 10 funcref (global.get $g))
  (table $t5 10 (ref $dummy) (global.get $g))

  (func (export "get1") (result funcref) (table.get $t1 (i32.const 1)))
  (func (export "get2") (result funcref) (table.get $t2 (i32.const 4)))
  (func (export "get3") (result funcref) (table.get $t3 (i32.const 7)))
  (func (export "get4") (result funcref) (table.get $t4 (i32.const 8)))
  (func (export "get5") (result funcref) (table.get $t5 (i32.const 9)))
)

(assert_return (invoke "get1") (ref.null))
(assert_return (invoke "get2") (ref.func))
(assert_return (invoke "get3") (ref.func))
(assert_return (invoke "get4") (ref.func))
(assert_return (invoke "get5") (ref.func))


(assert_invalid
  (module
    (type $f (func))
    (table 10 (ref $f))
  )
  "type mismatch"
)

(assert_invalid
  (module
    (type $f (func))
    (table 0 (ref $f))
  )
  "type mismatch"
)

(assert_invalid
  (module
    (type $f (func))
    (table 0 0 (ref $f))
  )
  "type mismatch"
)


;; Duplicate table identifiers

(assert_malformed
  (module quote
    "(table $foo 1 funcref)"
    "(table $foo 1 funcref)"
  )
  "duplicate table"
)
(assert_malformed
  (module quote
    "(import \"\" \"\" (table $foo 1 funcref))"
    "(table $foo 1 funcref)"
  )
  "duplicate table"
)
(assert_malformed
  (module quote
    "(import \"\" \"\" (table $foo 1 funcref))"
    "(import \"\" \"\" (table $foo 1 funcref))"
  )
  "duplicate table"
)