mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 16:57:58 +00:00
Alexander Theißen
3ae4be8662
* Allow indetermistic instructions off-chain * Apply suggestions from code review Co-authored-by: Sasha Gryaznov <hi@agryaznov.com> * fmt Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>
51 lines
1.2 KiB
WebAssembly Text Format
51 lines
1.2 KiB
WebAssembly Text Format
;; Just delegate call into the passed code hash and assert success.
|
|
(module
|
|
(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
|
|
(import "seal0" "seal_delegate_call" (func $seal_delegate_call (param i32 i32 i32 i32 i32 i32) (result i32)))
|
|
(import "env" "memory" (memory 3 3))
|
|
|
|
;; [0, 32) buffer where input is copied
|
|
|
|
;; [32, 36) size of the input buffer
|
|
(data (i32.const 32) "\20")
|
|
|
|
(func $assert (param i32)
|
|
(block $ok
|
|
(br_if $ok
|
|
(get_local 0)
|
|
)
|
|
(unreachable)
|
|
)
|
|
)
|
|
|
|
(func (export "call")
|
|
;; Reading "callee" code_hash
|
|
(call $seal_input (i32.const 0) (i32.const 32))
|
|
|
|
;; assert input size == 32
|
|
(call $assert
|
|
(i32.eq
|
|
(i32.load (i32.const 32))
|
|
(i32.const 32)
|
|
)
|
|
)
|
|
|
|
;; Delegate call into passed code hash
|
|
(call $assert
|
|
(i32.eq
|
|
(call $seal_delegate_call
|
|
(i32.const 0) ;; Set no call flags
|
|
(i32.const 0) ;; Pointer to "callee" code_hash.
|
|
(i32.const 0) ;; Input is ignored
|
|
(i32.const 0) ;; Length of the input
|
|
(i32.const 4294967295) ;; u32 max sentinel value: do not copy output
|
|
(i32.const 0) ;; Length is ignored in this case
|
|
)
|
|
(i32.const 0)
|
|
)
|
|
)
|
|
)
|
|
|
|
(func (export "deploy"))
|
|
)
|