wasmtime-cli 44.0.1

Command-line interface for Wasmtime
Documentation 
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;;! hogs_memory = true

(module
  (memory 0xffff)

  (func (export "grow") (param i32) (result i32)
    local.get 0
    memory.grow)

  (func (export "size") (result i32)
    memory.size)
)

(assert_return (invoke "grow" (i32.const 0)) (i32.const 0xffff))
(assert_return (invoke "size") (i32.const 0xffff))
(assert_return (invoke "grow" (i32.const 1)) (i32.const 0xffff))
(assert_return (invoke "size") (i32.const 0x10000))
(assert_return (invoke "grow" (i32.const 0)) (i32.const 0x10000))
(assert_return (invoke "grow" (i32.const 1)) (i32.const -1))