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https://github.com/pezkuwichain/pezkuwi-subxt.git
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Alexander Theißen
0068716b5a
* Don't put unstable functions in special module * Apply suggestions from code review Co-authored-by: Sasha Gryaznov <hi@agryaznov.com> * cargo fmt Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>
76 lines
2.4 KiB
WebAssembly Text Format
76 lines
2.4 KiB
WebAssembly Text Format
;; This fixture recursively tests if reentrance_count returns correct reentrant count value when
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;; using seal_call to make caller contract call to itself
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(module
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(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
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(import "seal0" "seal_address" (func $seal_address (param i32 i32)))
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(import "seal1" "seal_call" (func $seal_call (param i32 i32 i64 i32 i32 i32 i32 i32) (result i32)))
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(import "seal0" "reentrance_count" (func $reentrance_count (result i32)))
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(import "env" "memory" (memory 1 1))
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;; [0, 32) reserved for $seal_address output
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;; [32, 36) buffer for the call stack height
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;; [36, 40) size of the input buffer
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(data (i32.const 36) "\04")
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;; [40, 44) length of the buffer for $seal_address
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(data (i32.const 40) "\20")
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(func $assert (param i32)
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(block $ok
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(br_if $ok
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(get_local 0)
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)
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(unreachable)
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)
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)
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(func (export "call")
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(local $expected_reentrance_count i32)
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(local $seal_call_exit_code i32)
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;; reading current contract address
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(call $seal_address (i32.const 0) (i32.const 40))
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;; reading passed input
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(call $seal_input (i32.const 32) (i32.const 36))
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;; reading manually passed reentrant count
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(set_local $expected_reentrance_count (i32.load (i32.const 32)))
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;; reentrance count is calculated correctly
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(call $assert
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(i32.eq (call $reentrance_count) (get_local $expected_reentrance_count))
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)
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;; re-enter 5 times in a row and assert that the reentrant counter works as expected
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(i32.eq (call $reentrance_count) (i32.const 5))
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(if
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(then) ;; recursion exit case
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(else
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;; incrementing $expected_reentrance_count passed to the contract
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(i32.store (i32.const 32) (i32.add (i32.load (i32.const 32)) (i32.const 1)))
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;; Call to itself
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(set_local $seal_call_exit_code
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(call $seal_call
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(i32.const 8) ;; Allow reentrancy flag set
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(i32.const 0) ;; Pointer to "callee" address
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(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
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(i32.const 0) ;; Pointer to the buffer with value to transfer
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(i32.const 32) ;; Pointer to input data buffer address
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(i32.const 4) ;; Length of input data buffer
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(i32.const 0xffffffff) ;; u32 max sentinel value: do not copy output
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(i32.const 0) ;; Ptr to output buffer len
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)
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)
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(call $assert
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(i32.eq (get_local $seal_call_exit_code) (i32.const 0))
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)
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)
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)
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)
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(func (export "deploy"))
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) |