wasmtime-cli 44.0.0

Command-line interface for Wasmtime
Documentation 
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;; Bulk instructions

;; invalid uses

(assert_invalid
  (module
    (type $a (array i8))

    (data $d1 "a")

    (func (export "array.init_data-immutable") (param $1 (ref $a))
      (array.init_data $a $d1 (local.get $1) (i32.const 0) (i32.const 0) (i32.const 0))
    )
  )
  "immutable array"
)

(assert_invalid
  (module
    (type $a (array (mut funcref)))

    (data $d1 "a")

    (func (export "array.init_data-invalid-1") (param $1 (ref $a))
      (array.init_data $a $d1 (local.get $1) (i32.const 0) (i32.const 0) (i32.const 0))
    )
  )
  "array type is not numeric or vector"
)

(module
  (type $arr8 (array i8))
  (type $arr8_mut (array (mut i8)))
  (type $arr16_mut (array (mut i16)))

  (global $g_arr8 (ref $arr8) (array.new $arr8 (i32.const 10) (i32.const 12)))
  (global $g_arr8_mut (mut (ref $arr8_mut)) (array.new_default $arr8_mut (i32.const 12)))
  (global $g_arr16_mut (ref $arr16_mut) (array.new_default $arr16_mut (i32.const 6)))

  (data $d1 "abcdefghijkl")

  (func (export "array_get_nth") (param $1 i32) (result i32)
    (array.get_u $arr8_mut (global.get $g_arr8_mut) (local.get $1))
  )

  (func (export "array_get_nth_i16") (param $1 i32) (result i32)
    (array.get_u $arr16_mut (global.get $g_arr16_mut) (local.get $1))
  )

  (func (export "array_init_data-null")
    (array.init_data $arr8_mut $d1 (ref.null $arr8_mut) (i32.const 0) (i32.const 0) (i32.const 0))
  )

  (func (export "array_init_data") (param $1 i32) (param $2 i32) (param $3 i32)
    (array.init_data $arr8_mut $d1 (global.get $g_arr8_mut) (local.get $1) (local.get $2) (local.get $3))
  )

  (func (export "array_init_data_i16") (param $1 i32) (param $2 i32) (param $3 i32)
    (array.init_data $arr16_mut $d1 (global.get $g_arr16_mut) (local.get $1) (local.get $2) (local.get $3))
  )

  (func (export "drop_segs")
    (data.drop $d1)
  )
)

;; null array argument traps
(assert_trap (invoke "array_init_data-null") "null array reference")

;; OOB initial index traps
(assert_trap (invoke "array_init_data" (i32.const 13) (i32.const 0) (i32.const 0)) "out of bounds array access")
(assert_trap (invoke "array_init_data" (i32.const 0) (i32.const 13) (i32.const 0)) "out of bounds memory access")

;; OOB length traps
(assert_trap (invoke "array_init_data" (i32.const 0) (i32.const 0) (i32.const 13)) "out of bounds array access")
(assert_trap (invoke "array_init_data" (i32.const 0) (i32.const 0) (i32.const 13)) "out of bounds array access")
(assert_trap (invoke "array_init_data_i16" (i32.const 0) (i32.const 0) (i32.const 7)) "out of bounds array access")

;; start index = array size, len = 0 doesn't trap
(assert_return (invoke "array_init_data" (i32.const 12) (i32.const 0) (i32.const 0)))
(assert_return (invoke "array_init_data" (i32.const 0) (i32.const 12) (i32.const 0)))
(assert_return (invoke "array_init_data_i16" (i32.const 0) (i32.const 6) (i32.const 0)))

;; check arrays were not modified
(assert_return (invoke "array_get_nth" (i32.const 0)) (i32.const 0))
(assert_return (invoke "array_get_nth" (i32.const 5)) (i32.const 0))
(assert_return (invoke "array_get_nth" (i32.const 11)) (i32.const 0))
(assert_trap (invoke "array_get_nth" (i32.const 12)) "out of bounds array access")
(assert_return (invoke "array_get_nth_i16" (i32.const 0)) (i32.const 0))
(assert_return (invoke "array_get_nth_i16" (i32.const 2)) (i32.const 0))
(assert_return (invoke "array_get_nth_i16" (i32.const 5)) (i32.const 0))
(assert_trap (invoke "array_get_nth_i16" (i32.const 6)) "out of bounds array access")

;; normal cases
(assert_return (invoke "array_init_data" (i32.const 4) (i32.const 2) (i32.const 2)))
(assert_return (invoke "array_get_nth" (i32.const 3)) (i32.const 0))
(assert_return (invoke "array_get_nth" (i32.const 4)) (i32.const 99))
(assert_return (invoke "array_get_nth" (i32.const 5)) (i32.const 100))
(assert_return (invoke "array_get_nth" (i32.const 6)) (i32.const 0))

(assert_return (invoke "array_init_data_i16" (i32.const 2) (i32.const 5) (i32.const 2)))
(assert_return (invoke "array_get_nth_i16" (i32.const 1)) (i32.const 0))
(assert_return (invoke "array_get_nth_i16" (i32.const 2)) (i32.const 0x6766))
(assert_return (invoke "array_get_nth_i16" (i32.const 3)) (i32.const 0x6968))
(assert_return (invoke "array_get_nth_i16" (i32.const 4)) (i32.const 0))

;; init_data/elem with dropped segments traps for non-zero length
(assert_return (invoke "drop_segs"))
(assert_return (invoke "array_init_data" (i32.const 0) (i32.const 0) (i32.const 0)))
(assert_trap (invoke "array_init_data" (i32.const 0) (i32.const 0) (i32.const 1)) "out of bounds memory access")


(module
  (type $a32 (array (mut i32)))
  (type $a64 (array (mut i64)))

  (data $data0 "")
  (data $data1 "1")
  (data $data2 "12")
  (data $data3 "123")
  (data $data4 "1234")
  (data $data7 "1234567")
  (data $data9 "123456789")

  (func (export "f0")
    (array.init_data $a32 $data0
      (array.new_default $a32 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "f1")
    (array.init_data $a32 $data1
      (array.new_default $a32 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "f2")
    (array.init_data $a32 $data2
      (array.new_default $a32 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "f3")
    (array.init_data $a32 $data3
      (array.new_default $a32 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "f4")
    (array.init_data $a32 $data4
      (array.new_default $a32 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "f9")
    (array.init_data $a32 $data9
      (array.new_default $a32 (i32.const 1))
      (i32.const 0) (i32.const 6) (i32.const 1)
    )
  )

  (func (export "g0")
    (array.init_data $a64 $data0
      (array.new_default $a64 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "g1")
    (array.init_data $a64 $data1
      (array.new_default $a64 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "g4")
    (array.init_data $a64 $data4
      (array.new_default $a64 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "g7")
    (array.init_data $a64 $data7
      (array.new_default $a64 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "g8")
    (array.init_data $a64 $data9
      (array.new_default $a64 (i32.const 1))
      (i32.const 0) (i32.const 0) (i32.const 1)
    )
  )
  (func (export "g9")
    (array.init_data $a64 $data9
      (array.new_default $a64 (i32.const 1))
      (i32.const 0) (i32.const 2) (i32.const 1)
    )
  )
)

(assert_trap (invoke "f0") "out of bounds memory access")
(assert_trap (invoke "f1") "out of bounds memory access")
(assert_trap (invoke "f2") "out of bounds memory access")
(assert_trap (invoke "f3") "out of bounds memory access")
(assert_return (invoke "f4"))
(assert_trap (invoke "f9") "out of bounds memory access")

(assert_trap (invoke "g0") "out of bounds memory access")
(assert_trap (invoke "g1") "out of bounds memory access")
(assert_trap (invoke "g4") "out of bounds memory access")
(assert_trap (invoke "g7") "out of bounds memory access")
(assert_return (invoke "g8"))
(assert_trap (invoke "g9") "out of bounds memory access")