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Proof of concept: Add a new runtime that uses pallet_contracts (#186)

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* seal: Copy over a legacy version of pallet_contracts from substrate

* seal: Fix substrate dependency pathes and add as dependency to runtime

* seal: Adapt pallet to current substrate version

* seal: Add contracts pallet to runtime

* seal: Implement rpc runtime api

* seal: Update to latest rpc output format

* seal: Replace child trie by prefix trie

* seal: Add contracts endpoint to the client

* seal: fixup rpc test

* Fix whitespace issue

Co-authored-by: Sergei Shulepov <sergei@parity.io>

* seal: Move pallet out of the runtime directory

* seal: Create a seperate runtime for contracts

* Move parachains to top level directory

* seal: Disable rent for easier testing

Co-authored-by: Sergei Shulepov <sergei@parity.io>
This commit is contained in:
Alexander Theißen
2020-08-07 17:41:15 +02:00
committed by GitHub
parent 10533db948
commit 8a6e29eef9
63 changed files with 13517 additions and 148 deletions
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cumulus/rococo-parachains/pallets/contracts/fixtures/self_destruct.wat
+72
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(module
(import "env" "ext_scratch_size" (func $ext_scratch_size (result i32)))
(import "env" "ext_scratch_read" (func $ext_scratch_read (param i32 i32 i32)))
(import "env" "ext_address" (func $ext_address))
(import "env" "ext_call" (func $ext_call (param i32 i32 i64 i32 i32 i32 i32) (result i32)))
(import "env" "ext_terminate" (func $ext_terminate (param i32 i32)))
(import "env" "memory" (memory 1 1))
(func $assert (param i32)
(block $ok
(br_if $ok
(get_local 0)
)
(unreachable)
)
)
(func (export "deploy"))
(func (export "call")
;; If the input data is not empty, then recursively call self with empty input data.
;; This should trap instead of self-destructing since a contract cannot be removed live in
;; the execution stack cannot be removed. If the recursive call traps, then trap here as
;; well.
(if (call $ext_scratch_size)
(then
(call $ext_address)
;; Expect address to be 8 bytes.
(call $assert
(i32.eq
(call $ext_scratch_size)
(i32.const 8)
)
)
;; Read own address into memory.
(call $ext_scratch_read
(i32.const 16) ;; Pointer to write address to
(i32.const 0) ;; Offset into scratch buffer
(i32.const 8) ;; Length of encoded address
)
;; Recursively call self with empty input data.
(call $assert
(i32.eq
(call $ext_call
(i32.const 16) ;; Pointer to own address
(i32.const 8) ;; Length of own address
(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
(i32.const 8) ;; Pointer to the buffer with value to transfer
(i32.const 8) ;; Length of the buffer with value to transfer
(i32.const 0) ;; Pointer to input data buffer address
(i32.const 0) ;; Length of input data buffer
)
(i32.const 0)
)
)
)
(else
;; Try to terminate and give balance to django.
(call $ext_terminate
(i32.const 32) ;; Pointer to beneficiary address
(i32.const 8) ;; Length of beneficiary address
)
(unreachable) ;; ext_terminate never returns
)
)
)
;; Address of django
(data (i32.const 32) "\04\00\00\00\00\00\00\00")
)