wasm-tools 1.0.49

CLI tools for interoperating with WebAssembly files
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

(component
  (import "a" (func (param "foo" string)))
  (import "b" (func (param "foo" string) (param "bar" s32) (param "baz" u32)))
  (import "c" (func (result "foo" (tuple u8))))
  (import "d" (func (result "foo" string) (result "bar" s32) (result "baz" u32)))
)

(component
  (import "a" (func))
  (import "b" (func (param "p1" string)))
  (import "c" (func (result u32)))
  (import "d" (func (param "p1" bool) (result string)))
)

(assert_invalid
  (component
    (import "a" (func (result "foo" string) (result s32) (result "bar" u32)))
  )
  "function result name cannot be empty"
)

(assert_invalid
  (component
    (type (func (param "foo" string) (param "FOO" u32)))
  )
  "function parameter name `FOO` conflicts with previous parameter name `foo`"
)

(assert_invalid
  (component
    (type (func (result "FOO" string) (result "foo" u32)))
  )
  "function result name `foo` conflicts with previous result name `FOO`"
)

(assert_invalid
  (component
      (core module $m
          (memory (export "memory") 1)
          (func (export "foo") (result i32) unreachable)
      )
      (core instance $i (instantiate $m))

      (func (export "tuple") (result (tuple s8 u8))
          (canon lift (core func $i "foo"))
      )
  )
  "canonical option `memory` is required"
)

(component
  (import "a" (func $log (param "msg" string)))
  (core module $libc
    (memory (export "memory") 1)
  )
  (core instance $libc (instantiate $libc))
  (core func (canon lower (func $log) (memory $libc "memory")))
)

(component
  (core module $m
    (memory (export "memory") 1)
    (func (export "ret-list") (result i32) unreachable)
  )
  (core instance $i (instantiate $m))

  (func (export "ret-list") (result (list u8))
    (canon lift (core func $i "ret-list") (memory $i "memory"))
  )
)

(component
  (type $big (func
    (param "p1" u32) (param "p2" u32) (param "p3" u32) (param "p4" u32) (param "p5" u32)
    (param "p6" u32) (param "p7" u32) (param "p8" u32) (param "p9" u32) (param "p10" u32)
    (param "p11" u32) (param "p12" u32) (param "p13" u32) (param "p14" u32) (param "p15" u32)
    (param "p16" u32) (param "p17" u32) (param "p18" u32) (param "p19" u32) (param "p20" u32)
  ))

  (component $c
    (import "big" (func $big (type $big)))
    (core module $libc (memory (export "memory") 1))
    (core instance $libc (instantiate $libc))
    (core func $big (canon lower (func $big) (memory $libc "memory")))
  )
)

(assert_invalid
  (component
    (core module $m
      (memory (export "memory") 1)
      (func (export "roundtrip") (param i32))
    )
    (core instance $m (instantiate $m))

    (type $roundtrip (func
      (param "p1" u32) (param "p2" u32) (param "p3" u32) (param "p4" u32) (param "p5" u32)
      (param "p6" u32) (param "p7" u32) (param "p8" u32) (param "p9" u32) (param "p10" u32)
      (param "p11" u32) (param "p12" u32) (param "p13" u32) (param "p14" u32) (param "p15" u32)
      (param "p16" u32) (param "p17" u32) (param "p18" u32) (param "p19" u32) (param "p20" u32)
    ))

    (func $roundtrip (type $roundtrip)
      (canon lift (core func $m "roundtrip") (memory $m "memory"))
    )
    (export "roundtrip" (func $roundtrip))
  )
  "canonical option `realloc` is required"
)

(assert_invalid
  (component
    (import "a" (func $log (result string)))
    (core module $libc
      (memory (export "memory") 1)
    )
    (core instance $libc (instantiate $libc))
    (core func (canon lower (func $log) (memory $libc "memory")))
  )
  "canonical option `realloc` is required"
)

(assert_invalid
  (component
    (core module $m
      (memory (export "memory") 1)
      (func (export "param-list") (param i32 i32) unreachable)
    )
    (core instance $i (instantiate $m))

    (func (export "param-list") (param "bytes" (list u8))
      (canon lift (core func $i "param-list") (memory $i "memory"))
    )
  )
  "canonical option `realloc` is required"
)