Files
pezkuwi-subxt/substrate/frame/contracts
Denis Pisarev be5dc02d3b Fail docs on warnings (#5923)
* change (ci): docs job optimized; runs every commit; fails on warnings

* change (ci): rename jobs; temporary allow failing

* change (ci): better warnings filtering

* fix (ci): hotfix Docker release

* test (ci): run docs job with flags

* test (ci): pwd fails

* change (ci): pass just //doc dir as an artifact; debug

* change (ci): return to the previous structure; undebug

* change (ci): typo

* rebase on upstream 2

* fix the jobname

* Fix some warnings (#7079)

* Partial fix for transaction priority (#7034)

* Partial fix for priority stuff.

* Small fix

* Fix tests.

* Update frame/transaction-payment/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Better doc

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* What happens if we remove wat? (#7056)

* What happens if we remove wat?

* Update Cargo.lock

* Make SlashingSpans Public (#6961)

* Make SlashingSpans Public

Offchain Applications will often need to inspect this type because it is directly used in staking election, thus worthy of being `pub`. Rest of the slashing api can remain private, only this and the `fn last_non_zero_slash()` of `SlashingSpans` are of interest.

* Update frame/staking/src/lib.rs

* client/authority-discovery/src/service: Improve docs (#7059)

* Decrease poll interval (#7063)

* Remove unused code (#7027)

Signed-off-by: Jimmy Chu <jimmychu0807@gmail.com>

* Disambiguate `BlockNumber` type in `decl_module` (#7061)

* Disambiguate `BlockNumber` type in `decl_module`

* fix `frame-support-tests`

* fix ui tests

* fix trait order

* Implement `FromStr` for `Ss58AddressFormat` (#7068)

* Implement `FromStr` for `Ss58AddressFormat`

* Update primitives/core/src/crypto.rs

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>

* Set reserved nodes with offchain worker. (#6996)

* add offchain worker api to set reserved nodes.

* new offchain api to get node public key.

* node public key from converter

* refactor set reserved nodes ocw api.

* new ndoe authorization pallet

* remove unnecessary clone and more.

* more

* tests for node authorization pallet

* remove dependency

* fix build

* more tests.

* refactor

* Update primitives/core/src/offchain/testing.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update frame/node-authorization/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update frame/node-authorization/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* Update frame/node-authorization/src/lib.rs

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>

* format code

* expose NetworkService

* remove NetworkStateInfo in offchain

* replace NodePublicKey with PeerId.

* set max length of peer id.

* clear more

* use BTreeSet for set of peers.

* decode opaque peer id.

* extract NetworkProvider for client offchain.

* use OpaquePeerId in node authorization pallet.

* fix test

* better documentation

* fix test

* doc

* more fix

* Update primitives/core/src/offchain/mod.rs

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Update client/offchain/src/api.rs

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* derive serialize and deserialize

Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Fix some warnings

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Sergei Shulepov <sergei@parity.io>
Co-authored-by: Max Inden <mail@max-inden.de>
Co-authored-by: s3krit <pugh@s3kr.it>
Co-authored-by: Jimmy Chu <jimmy@parity.io>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: kaichao <kaichaosuna@gmail.com>
Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>

* Fix more doc errors

* More doc fixes

* Remove subdb to make `rustdoc` happy

* Make the line length check happy

* Fix compilation error

* Another try

* Allow unused

Co-authored-by: Dan Forbes <dan@danforbes.dev>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Sergei Shulepov <sergei@parity.io>
Co-authored-by: Max Inden <mail@max-inden.de>
Co-authored-by: s3krit <pugh@s3kr.it>
Co-authored-by: Jimmy Chu <jimmy@parity.io>
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: kaichao <kaichaosuna@gmail.com>
Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
Co-authored-by: Bastian Köcher <git@kchr.de>
2020-09-11 17:39:16 +02:00
..
2020-08-20 17:04:42 +02:00
2020-08-20 17:04:42 +02:00
2020-09-11 17:39:16 +02:00
2020-08-20 17:04:42 +02:00

Contract Module

The Contract module provides functionality for the runtime to deploy and execute WebAssembly smart-contracts.

Overview

This module extends accounts based on the Currency trait to have smart-contract functionality. It can be used with other modules that implement accounts based on Currency. These "smart-contract accounts" have the ability to instantiate smart-contracts and make calls to other contract and non-contract accounts.

The smart-contract code is stored once in a code_cache, and later retrievable via its code_hash. This means that multiple smart-contracts can be instantiated from the same code_cache, without replicating the code each time.

When a smart-contract is called, its associated code is retrieved via the code hash and gets executed. This call can alter the storage entries of the smart-contract account, instantiate new smart-contracts, or call other smart-contracts.

Finally, when an account is reaped, its associated code and storage of the smart-contract account will also be deleted.

Gas

Senders must specify a gas limit with every call, as all instructions invoked by the smart-contract require gas. Unused gas is refunded after the call, regardless of the execution outcome.

If the gas limit is reached, then all calls and state changes (including balance transfers) are only reverted at the current call's contract level. For example, if contract A calls B and B runs out of gas mid-call, then all of B's calls are reverted. Assuming correct error handling by contract A, A's other calls and state changes still persist.

Notable Scenarios

Contract call failures are not always cascading. When failures occur in a sub-call, they do not "bubble up", and the call will only revert at the specific contract level. For example, if contract A calls contract B, and B fails, A can decide how to handle that failure, either proceeding or reverting A's changes.

Interface

Dispatchable functions

  • put_code - Stores the given binary Wasm code into the chain's storage and returns its code_hash.
  • instantiate - Deploys a new contract from the given code_hash, optionally transferring some balance. This instantiates a new smart contract account and calls its contract deploy handler to initialize the contract.
  • call - Makes a call to an account, optionally transferring some balance.

Usage

The Contract module is a work in progress. The following examples show how this Contract module can be used to instantiate and call contracts.

  • ink is an eDSL that enables writing WebAssembly based smart contracts in the Rust programming language. This is a work in progress.

License: Apache-2.0