* Add missing words to spellcheck dictionary

* Add `contracts-node.scale` metadata

Has been exported via

	cargo install subxt-cli
	subxt metadata > contracts-node.scale

For `substrate-contracts-node` v0.20.0.

* Run `substrate-contracts-node` in CI

* Invoke `cargo doc` separately for each crate

* Add MVP for E2E testing framework

* Add E2E tests for `contract-transfer` example

* Add ToDo comment for migration to `state_call` RPC

* Update to new `ink` entrance crate

* Add ToDo for `node_log_contains`

* Update to `ink` entrance crate

* Migrate to `state_call` RPC

* Always initialize `env_logger`

* Use latest `subxt` release

* Remove superfluous TODO

* Apply `cargo fmt`

* Adapt test fixtures

* Add ink entrance crate

* Use entrance crate from lang codegen

* Use entrance crate for ink_storage

* Update primitives and storage

* Fix primitive macro

* Move unique_topics test to ink crate

* Update ink crate versions

* Use umbrella crate in ink primitives macro

* Use umbrella crate in storage derive macros

* Use umbrella crate in storage doc tests

* Use umbrella crate in lang codegen

* Fix storage doc tests

* Update erc20 example

* Remove scale libs from entrance crate

* Rename ink_lang crate to ink

* Reexport sub crates from main ink crate

* Metadata std

* Fix up some examples

* Fix up delegator example

* Fix up more examples

* Fix up more examples

* Fix up more examples

* Remove some ink_lang as ink from tests

* Update env_access docs

* Fix up more doc examples

* Remove ink_lang import from some tests

* UI tests

* Fix UI tests

* Remove more ink_lang aliases

* Fix contract-terminate tests

* Fmt

* Attempt to fix CI and ARCHITECTURE doc

* Update crates list

* Restore unique_topics test

* Remove ink_lang from unique_topics test

* Fix typo

* UI tests

* UI tests

* Fmt examples

* Fmt UI tests

* More fmt UI tests

* Fix storage tests

* Fix example tests

* Fix examplesl

* Fix example test

* Examples fmt

* Fix erc20

* Fmt erc20

* Fix doc test

* Move unique_topics test

* Fix UI tests

* Revert CHANGELOG.md

* Use cargo-contract branch in examples-contract-build

* Add ink-debug feature to top level ink crate

* Update CHANGELOG.md

* Rename all ink_lang_* crates to ink_*

* Replace remaining ink_lang_macro refs

* Update CHANGELOG.md

Co-authored-by: Michael Müller <mich@elmueller.net>

* Update CHANGELOG

Co-authored-by: Michael Müller <mich@elmueller.net>

Add `ink_env::pay_with_call!` helper macro for off-chain emulation of sending payments with contract msg calls (#1379)

* first ver.: transfer_in api function implememted but we can't have it in on-chain env

* transfer_in moved to test_api

* doc + example updated

* Update examples/contract-transfer/lib.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* use stmt moved to macro

* docs and nitty gritties

* moved the macro to the test mod

* spell fix

* next review round suggestions applied

* Use four spaces for macro indentation

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
Co-authored-by: Hernando Castano <hernando@hcastano.com>

* Add ink_storage_traits crate

* Remove unused hash layout trait and impls

* Remove dependency between storage traits and ink_env

* Move Storable definition and derive to ink_storage_traits

* Replace usages of primitives storable with new location

* Fmt

* README and license sym links

* Fix up CI script crates and codegen symlinks

* update CI crates again

* Add StorageLayout impl for Hash

* Fix up collections ui tests

* Fix up storage traits tests

* Add missing feature to codegen syn dependency

* Fix storage traits reference in env

* Add missing no_std cfg_attr

* Fix example build

* Fmt

* Fix example

* Move Clear trait to primitives

* Fix example

* Fix env access

* Fix up docs

* Trying to fix UI tests

* Fix LICENSE and README paths

* document storage compatibility

* more clarity on storage restriction

* fix spelling

* ignore code snippets in docs

* formatting

* Apply suggestions from Michi's code review

Co-authored-by: Michael Müller <mich@elmueller.net>
Co-authored-by: Andrew Jones <ascjones@gmail.com>

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>
Co-authored-by: Andrew Jones <ascjones@gmail.com>

* Import new unstable functions with transparent hashing.
Updated the API to work with the generic key `K: Encode` instead of the old `Key`.
Also, the change contains optimization to reduce the size of contracts. In most cases, it is `#[inline(always)]`; but `return_value` also got small optimization; removed usage of `extract_from_slice` where it is not needed.

* primitives crate:
Removed old 32 bytes `Key`. Replaced it with `u32`. Added `KeyComposer`, it is a helper struct that does all manipulation with the storage key. It allows concat two storage keys into one, compute storage key for fields based on the filed, struct, enum, variants names.
Removed all tests and benches. Didn't add it for new primitives because the key is standard `u32` and all keys are calculated during compilation.

storage crate:
Removed `SpreadLayout`, `PackedLayout`, `SpreadAllocate`, `PackedAllocate`, and all related helper functions.
Removed `Packed` struct cause it is the default behavior for storage right now. Added `Lazy` struct that allows `get`/`set` value from/into the storage. It is similar to `Mapping` but works with one storage key and one value.
Introduced new main traits to work with storage in `storage/src/traits/storage.rs`.
Also added a new `OnCallInitializer` trait to improve the flow with upgradable contracts and support initialization on demand by default. Added `pull_or_init` macro that inits the storage struct if it is impossible to load it. It also can be used as optimization for contracts without an explicit constructor.
Replaced implementation of old traits for main primitives with a new one. Added blanket implementation of new traits for structures that are `Packed` by default. It reduces the amount of code and adds support of generic structures but adds problems with tuples(now tuples implement new traits only if inner items are `Packed`).
Introduced `AutoKey` and `ManualKey` that allows specifying which key the user wants to use. Added support of it into all traits and structures.
Refactored `Mapping` to follow new rules.

* metadata crate:
Updated storage layout in the metadata. Introduces the concept of roots and leafs. Root defines the storage key for all sub-tree until there will be another Root. Leafs are common types that are part of the sub-tree and serialized/deserialized together into one storage key.
Replaced 32 bytes storage key with `u32`.
Added validation that all root storage keys don't overlap. Maybe better to add that error or reuse that validator on the `cargo-contract` side to show a more user-friendly error.
`RootLayout` and validator are used in codegen(next commit). The contract is wrapped into `RootLayout`, and we do validation for that tree.
Metadata now contains name for each struct/enum/variant/field. It is useful information because now the storage key is calculated based on the name of struct/enum/variant/field.

storage crate:
Added a new helper crate `storage/codegen`. It contains some useful functional that is used in `ink_storage_derive` and in `ink_lang_codegen` crates. It has a method that returns all types of the struct/enum/unit and a method that finds "salt" in the generics of the struct/enum. It uses magic constant "KeyHolder"(about that you can read in issue) to find salt, so I tried to have only one place where we are using that constant.

Replaced derive implementation of old trait with new one. You can check the tests to see how the implementation looks like. `Storable` recursively call `encode` and `decode` for all fields. `KeyHolder` return key of the salt. `Item` uses `AutoKey` or key specified by the user. I want to highlight that `PreferredKey` only is used with the `AutoItem` trait. If `PreferredKey` is `AutoKey`, then `AutoItem<AutoGenerated>` select auto-generated key, otherwise preferred. So `AutoItem` trait decides that key to use. It is why derive macro only set `PreferredKey`.
Updated drive for `StorageLayout`, now it uses `u32` and pass name of the struct into metadata.

* Removed `initialize_contract` and related to initialization stuff. Now the codegen uses `pull_or_init` in the `call`. Updated `execute_constructor` to work with new storage methods.
Allowed usage of generics during the declaration of the primary contract storage. Users can specify the default storage key with `KeyHolder` via generic.
Added parser for `storage_item` macro with its config.

* Removed the old codegen related to spread and packed layout. If some object implements `Decode` and `Encode`, it is `Packed`, and it uses the blanket implementation of new traits.
In dispatch, codegen started to use a new method to work with storage.
In metadata codegen added usage of new `RootLayout`. We wrap the contract into that layout because the contract has its storage key for all inner fields by default. Also added a run of validation logic during metadata generation.
Added `storage_item` macro. It transforms all types from autokey into manual key(if types support it). It calculates the storage key based on the name(it uses the `KeyComposer::compute_key` function from the primitives crate). Also, macro generates an additional `Check` structure that includes all raw fields. It helps show correct errors to the user in case of typos, wrong types, etc.

* Updated all examples to use a new API.
Simplified delegate call example very well causes of new `OnCallInitializer` trait and support of manual specifying key.

* UI tests for a new codegen.
Can't highlight something unusual here=)

* Apply all suggestion from the review

* Make CI happy

* Fix tests

* Fix tests

* Fix tests

* Fix tests

* Apply suggestions:
- In most cases it is comments=)
- Moved `pull_or_init` on one level upper.
- Put the tests into the `impls/mod.rs`

* Fix doc

* Add comment to autoref specialisation

* Suggestion from the review

* Revert back u8

* Remove unwrap

* Collapse if let

* Fixed overflow for enums

* Fixing comments

* Renamed `Item` to `StorableHint` and `AutoItem` to `AutoStorableHint`

* Fix test

* Renamed key_holder.
Add UI test for double storage_item.
Applied suggestion from the review.

* Nightly fmt

* Remove `Packed` path

* Fix doc test

* Apply suggestions from hte review

* Fixed build

* Fix build

* Removed `initialize_contract` from linting and deleted all tests

* Fix doc link

* Fix mapping example

* Applied suggestion.
Removed `delegate-call` example with `OnCallInitializer`

* Removed `delegate-calls` from the CI. Replaced it with `set-code-hash`

* fix test

* fix test

* Fix CI to use stable for contract build

* Fix CI to use stable for examples

* Fix some text

* Add more content to `ARCHITECTURE.md`

* Update ARCHITECTURE.md

Co-authored-by: Andrew Jones <ascjones@gmail.com>

Co-authored-by: Andrew Jones <ascjones@gmail.com>

* Update UI tests

* Apease Clippy

* Revert "Suppress unused variable warning for debug_print macros (#1258)"

This reverts commit b6dd9352.

* Add workaround for unused bug

* Suppress unused variable error for debug_print macros

* Add explicit seperator

* Let's try to match expressions

* Rename `Mapping::contains` to `Mapping::size`

* Add `Mapping::contains`

* Update examples for new `Mapping::contains` API

* Fix typo

* Implement `contains_storage` in off-chain testing `engine`

* Apply suggestions from code review

Co-authored-by: Alexander Gryaznov <hi@agryaznov.com>

Co-authored-by: Alexander Gryaznov <hi@agryaznov.com>

* ink_eth_compatibility::to_eth_address() removed, as well as libsecp256k1 dep

* added edcsa_to_eth_address() (except offchain env)

* added off-chain impl

* removed eth_compatibility crate

* removed dep on eth_compatibility

* fix: clean dependency on a struct from removed crate

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

* save

* bugfix for old offchain env impl of to_eth_address

* + doc comments

* ecdsa_to_default_account_id func ported from ink_eth_compatibility crate

* revert examples

* fix

* another fix

* more fix

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

* Revert "ecdsa_to_default_account_id func ported from ink_eth_compatibility crate"

This reverts commit 70a91891

.

* missed clean up

Co-authored-by: Michael Müller <mich@elmueller.net>

* Fix `clippy::extra-unused-lifetimes`

* Fix `clippy::let_unit_value`

* added storage_contains()

* SENTINEL const moved to on_chain env

* added Mapping::contains()

* added Mapping::insert_checked()

* CI satisfaction (then_some() -> then())

* CI satisfaction 2

* udpated env to return the size of prev stored val

* Mapping::insert_return_size()

* impl From<ReturnCode> for Option<u32>

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

Co-authored-by: Michael Müller <mich@elmueller.net>

* Improve folder structure

* Update readme

* Apply `cargo fmt`

* Add a function `ink_env::set_code_hash`

* Add an example of `ink_env::set_code_hash`.

* Fix spelling mistake

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

* seal_code_hash() added

* +docs

* seal_own_code_hash() added

* ci errors fixes

* more ci fixes

* more ci fixes

* refactored on what to return

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

* fix: new funcs are in TypedEnvBackend trait

* errors section to code_hash doc + own_code_hash to return non-wrapped val

* bug caught and fixed: wrong return val for seal_own_code_hash

* Update crates/env/src/api.rs

Co-authored-by: Michael Müller <mich@elmueller.net>

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

* own_code_hash to return Result, as there could be decoding issues

* bugfix (e2e testing caught)

* ci fix

* Apply suggestions from code review

Co-authored-by: Michael Müller <mich@elmueller.net>

* Revert "Apply suggestions from code review"

This reverts commit 5591d955

.

Co-authored-by: Michael Müller <mich@elmueller.net>

* Remove redundant (since edition 2021) TryFrom imports

* Remove unused import

* Missed one

* Imports

* Remove FromIterator imports

* Fix `clippy::only-used-in-recursion`

	error: parameter is only used in recursion
	--> crates/env/src/types.rs:60:22
	|
	60 |     fn from_le_bytes(bytes: Self::Bytes) -> Self {
	|                      ^^^^^ help: if this is intentional, prefix with an underscore: `_bytes`
	|
	= note: `-D clippy::only-used-in-recursion` implied by `-D warnings`
	= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#only_used_in_recursion

* Make recursion explicit

* [env] [lang] refactor CallBuilder to allow for delegate calls, add delegated calls implementations, update expected test results

* Created an upgradable flipper. `Upgradable<bool, NotInitialized>` means that the code will init `bool` if storage cell is empty. But if it is not empty, it will use the value from the storage.

* Get updated key

* [env] update proxy example

* [env] fix `build_call` compilation errors

* [env] allow complex types

* [lang] fix doc-tests for `eval_contract`, `eval_contract_delegate`, `invoke_contract`, `invoke_contract_delegate`

* [examples] Add description to `ProxyFields` struct

* [examples] Change version for `upgradeable_flipper`

* Rebased to latest `master`.
Fixes according comments in PR.

* Fix tests

* Fix tests

* Fix tests

* Changes according comments in PR.

* "upgradeable" everywhere instead of "upgradable"

* Changes according the suggestion in the PR

* Fix clippy

* Fixes according Cmichi's comments

* Fixes according HCastano's comments

* Fixed the bugs after merging with `master`. Applied last suggestions from the PR

Co-authored-by: xgreenx <xgreenx9999@gmail.com>

* Merge contract invoke and eval

* Fix up call builder

* Fmt

* Restore off chain param getters

* Use ReturnType in generated CallBuilder

* No longer need to explicitly wrap return type in ReturnType

* Fmt

* Remove some unused ReturnType usage

* Default to `returns::<()>()`, remove ReturnType usage in api

* Fmt

* Fix UI test

* Another UI test

* Replace default off-chain engine with experimental one, remove old one

* Remove old off-chain testing env tests from examples

* Bring back `PrefixedValue`

* Make `clippy` happy

* Move files in correct place

* Add missing file

* Move `PrefixedValue` into tests

* Add comment

* Add `CallData` to testing env

* Add tests in experimental off-chain env for `multisig`

* Fix small nitpicks

Co-authored-by: Hernando Castano <hernando@hcastano.com>

* Implement chain extension testing in experimental off-chain env

* Make `clippy` happy

https://rust-lang.github.io/rust-clippy/master/index.html#redundant_slicing

* [env][lang] add support for new `is_contract` API

* added `is_contract()` to ink_lang::EnvAccess to use from within contract with self.env()

* added `is-contract` example

* add support for `caller_is_origin()` API

* updated is-contract example to use `caller_is_origin()` as well

* Corrections in response to @HCastrano review

* removed `examples/is-contract`

* turned back whitespaces in `env_access.rs` not to mess up with the changed thing

* added new functions to `experimental_offchain_engine`

* fixed `wrong_self_convention` clippy warning for `is_` functions

* supressed `wrong_self_convention` clippy warning for `is_` functions

This reverts commit a40fab17

.

* Update crates/env/src/api.rs

Co-authored-by: Michael Müller <mich@elmueller.net>

* set `is_contract` and `caller_is_origin` as `unimplemented` in experimental_off_chain eingine

* Apply suggestions from code review

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* message cant take ref as a param: revert suggested change

Co-authored-by: Michael Müller <mich@elmueller.net>
Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* Enable use of global secp256k1 context

Context creation is expensive.

Use the preallocated context that ships with the library.

* Cargo fmt

* Set `secp256k1` crate as optional

* `global-context` feature depends on `std`
* Its usage scope was already limited to `std` environment

* ink-engine requires `secp256k1` feature

* Apply fixes for nightly `clippy` warnings

* Apply fixes for nightly `clippy` warnings

* Apply fixes for nightly `clippy` warnings

* Update `secp256k1` from 0.20.3 to 0.21.2

* Use `sign_ecdsa_recoverable` instead of deprecated function

* Use `sign_ecdsa_recoverable` instead of deprecated function