* [chores] update README to new ink! 3.0 syntax

* [*] update all broken LICENSE and README.md symbolic links

* [*] update all license headers

Also be more strict about their dates: 2018-2020 for all

* [lang/codegen] initial impl of the new ink! codegen

This new codegen is based on the (also) new ink! IR.

* [lang/macro] apply rustfmt to imports

* [lang/codegen] apply rustfmt

* [lang/ir] add ItemMod::{attrs, vis} getters

* [lang/codegen] make use of ir::ItemMod::{attrs, vis} in codegen

* [lang/codegen] restructure ink_lang_codegen library

* [lang/codegen] appliy clippy suggestion

* [lang/ir] add Event::attrs() and ToTokens impl for EventField

* [lang/codegen] apply rustfmt

* [lang/codegen] implement Event code generator

* [lang/codegen] make use of the new Events code generator

* [lang/ir] make ir::Callable always Copy and Clone

* [lang/ir] rename CallableWithSelector::item -> callable

* [lang/ir] add Callable::kind() trait method

* [lang/codegen] add dispatch enum code generation

* [lang/codegen] enable dispatch code generator

* [lang/codegen] add generation for constructor dispatch enum

* [lang/codegen] implement contract entry points

* [lang/codegen] implement code generation for DispatchUsingMode impl

* [lang/codegen] add trait impl namespaces Msg<S> and Constr<S>

* [lang/ir] add ir::Message::inputs_span() getter

* [lang/codegen] add codegen for dispatch trait impls for ink! messages

* [lang/codegen] plug-in dispatch trait impls code gen

* [lang/ir] add Callable::inputs_span trait method

* [lang/codegen] implement dispatch trait impl codegen for ink! constructors

Also this implementation avoids a lot of code duplication with the similar code generation for dispatch trait impl of ink! messages.

* [lang/codegen] make generate_input_bindings doc tests pass

* [lang/ir] apply rustfmt

* [lang/codegen] fix message and constructor namespaces

* [lang/ir] add {Message, Constructor}::attrs getter

* [lang/codegen] implement codegen for ink! ItemImpls

* [lang/codegen] remove some unneeded imports for ItemImpl codegen

* [lang/codegen] automatically import ink_lang's Env, EmitEvent and StaticEnv traits

* [lang/codegen] do not generate for ink-as-dependency

* [lang/codegen] initial impl for cross-calling codegen

Not complete, yet. Also we stubled upon the fact that due to the
additional Rust trait support we have to completely change how we
generate code for cross-calling. Research!

* [core] rename utils.rs -> selector.rs

* [core] add common mod for common abstractions for call and create

* [core] improve ExecutionInput: add useful trait impls

* [core] refactor call builder

* [core] adjust rest of ink_core to changed imports

* [core] implement new CreateBuilder

* [core] remove old InstantiateBuilder

* [core] remove no longer needed traits

* [core] add eval,invoke,eval_params,invoke_params to CallBuilder

This makes both CallBuilder and CreateBuilder more similar to each other.

* [core] apply rustfmt

* [core] adjust environment to new CreateBuilder

* [core] apply rustfmt

* [core] move eval and invoke to CallParams

* [core] adjust on-chain impl for CallBuilder

* [core] add explanation for the cfg

* [core] move instantiate to CreateParams

* [core] make CreateParams getters crate private

* [core] rename Call -> CallParams

* [core] improve doc comment

* [lang] adjust lang for new call and create builders

* [core] expose builder construction through build_call and build_create

* [core] remove Default impl for empty ExecutionInput

* [core] add usage examples to build_call

* [core] improve usage doc example of build_call

* [core] improve doc tests for build_call

* [core] add doc test example to build_create

* [core] fix compilation after merge

* [metadata] make constuctor and message name an array and add is_payable

Only messages need is_payable field since constructors must always be payable.

* [lang/codegen] add metadata code generation

* [lang/ir] implement lint to ensure there are no __ink_ prefixed identifiers

Identifiers starting with __ink_ may only be used by the ink! codegen.
So far this has been only implemented on TokenTree or TokenStream level and not on parsed syn abstractions leading to arcane errors. E.g. it was possible to catch errors if an __ink_ substring appeared in a string literal before.

* [metadata] make serialized Layout fields camelCase

* [lang/ir, lang/macro] apply rustfmt

* [lang/ir] initial implementation of #[ink::trait_definition] proc. macro

* [lang/ir] re-export InkTrait

* [lang/macro] create new proc. macro for ink! trait definitions

* [lang/ir] improve error messages of #[ink::trat_definition] a bit

* [lang/ir] add many more unit tests

* [lang/ir] apply rustfmt

* [lang/ir] fixed spelling bug

* [lang/ir] fix handling or errorneous Self receiver in ink! constructors

* [lang/ir] add bunch of new unit tests for #[ink::trait_definition] proc. macro

* [lang/ir] add some more unit tests

* [lang/ir] implement checks for invalid ink! attributes

* [lang/ir] add unit tests for invalid ink! attributes

* [lang/ir] use syn's builtin receiver getter

* [lang/ir] add iterators for ink! trait definition

* [lang/ir] add getters for generic info of ink! trait definition

* [lang/ir] fix a unit test testing too much

* [lang/ir] deny ink! trait definitions with supertraits

We might add support for supertraits in future versions.

* [lang/ir] add verify_hash functions

* [lang/ir] simplify ink! trait verification hash

There now is only a single hash instead of a hash per constructor and message.

* [lang/ir] add InkTrait::attrs() getter

* [lang/ir] add re-exports for most InkTrait types

* [lang/codegen] initial implementation of #[ink::trait_definition] codegen

Does not yet include the verification hash generation.

* [lang/codegen] refine codegen for ink! trait definitions

* [lang, lang/codegen] use correct trait for ink! trait definition checking

* [lang/codegen] rework crate exposed API

* [lang/ir] fix return value of ir::InkTrait::new

* [lang/macro] update codegen driver for ink! trait definition

* [core, lang/codegen, lang/ir, metadata] apply clippy suggestions

* [lang/codegen, lang/ir, lang/macro, lang] apply rustfmt

* [lang/macro] add ink_lang_codegen dependency

Needed for #[ink::trait_definition] proc. macro.

* [core/derive] use _ as const name instead of generated one

* [lang/codegen] prefix {Constructo,Message}DispatchEnum ident with __ink_

* [lang/codegen] use payable instead of is_payable

* [lang/codegen] hide some generated types

* [lang/ir] improve error span of bad storage struct visibility

* [core] add CallBuilder::returns to signal return type

Also this adds CallBuilder::fire as a quick way to fire off the call.
The CallBuilder::invoke_params and CallBuilder::eval_params are no longer needed and thus removed.

* [lang/ir] implement ToTokens for ir::Receiver

* [lang/codegen] apply #[doc(hidden)] to generated call forwarders

* [lang/codegen] slightly clean-up code

* [lang/codegen] use new call infrastructure for call forwarders

* [lang/codegen] add codegen for short-hand cross-contract message calls

* [lang/codegen] add #[inline] to generated short-hand message calls

* [lang/codegen] improve short-hand call error message

* [lang/codegen] do not generate conflicting impls

* [lang/codegen] generate non-ink! specific user defined items

* [lang/ir] remove some commented out code

* [core, lang/ir] apply rustfmt

* [core] add CreateBuilder::instantiate

* [lang/codegen] fix generate_arg_list

* [lang/codegen] add cross-calling codegen for non-trait constructor impls

* [lang/codegen] add an associated type per trait constructor in ink! trait definition

* [lang/codegen] remove former Output associated type in ink! trait definition

* [lang] re-export trait_definiction proc. macro from ink_lang crate

* [lang/ir] expose InkTrait::compute_verify_hash

* [lang/ir] add ir::ItemImpl::trait_ident

* [lang/codegen] fix some bugs with trait_definition codegen

* [lang/codegen] add codegen for cross-calling ink! trait implementations

* [lang/codegen] surpress warning in generated code

* [lang/codegen] fix bug in generated trait constructors

* [lang/codegen] add codegen for trait implementation blocks

* [lang/ir] allow access to parent impl block from within a CallableWithSelector

* [lang/codegen] make dispatch trait impls more explicit for trait impls

* [lang/codegen] fix and fully implement cross-calling (trait) impl blocks

Works now for both trait impl blocks as well as inherent impl blocks.
Only missing piece now is the codegen for the call forwarders and their impl blocks.

* [lang/ir] add ir::ItemImpl::attrs getter

* [lang/codegen] add codegen for impl block attributes for cross-calling

* [lang/codegen] correctly re-generate attributes for impl blocks

* [lang/codegen] generate forwarder inherent impl blocks

* [lang, lang/codegen] adjust ink::trait_definition proc. macro codegen

Now it also generates an associated return type per message.
Those have to respect the ink_lang::ImpliesReturn trait.

* [lang/codegen] add cross-calling call forwarder codegen for trait impl blocks

* [lang] add NeverReturns utility codegen type

* [lang/codegen] implement codegen for cross-calling trait impl blocks

* [*] apply rustfmt

* [lang/codegen] apply some clippy suggestions

* [lang/macro] make use of new ink! 3.0 codegen

* [examples] adjust Flipper example to ink! 3.0

* [examples] add trait based Flipper example

* [examples] adjust Delegator example to ink! 3.0

* [lang/codegen] always use std feature for itertools dependency

Otherwise codegen won't work for Wasm32 compilations.

* [examples] adjusted Incrementer to the new ink! 3.0 codegen

* [lang/ir] fix error span for bad event visibility modifier

* [lang/ir, lang/codegen] fix event fields codegen

* [lang/codegen] fix incorrectly generated EmitEvent trait impl

* [lang/codegen] fix bugs with ink-as-dependency and event usage

* [examples] adjust Erc20 contract to ink! 3.0 syntax

* [examples] fix Erc20 unit tests

* [lang, lang/codegen] add ContractEnv trait

Used to query EnvTypes trait impl using the ink! storage struct.

* [lang, lang/codegen] implement payable messages and dynamic storage alloc

Now it is possible to control whether to use the dynamic storage allocator provided by ink! in ink! itself.
Also this PR implements codegen for non-payable messages.

* [lang/macro, lang/codegen] apply rustfmt

# Conflicts:
#	lang/macro/src/lib.rs

* [lang/ir] error upon payable constructor

ink! constructors are payable by default.

* [core] remove EnvTypes::Call associated type

No longer needed since we just removed the ability to directly call the runtime.

* [core] add MAX_EVENT_TOPICS to EnvTypes trait

* [lang, lang/codegen] optimize message payment checks codegen

* [lang/ir, lang/codegen] dynamic storage allocator: rename + change default

New default is set to "false" so only contracts that actually use this feature need to specify it.
Also renamed to dynamic_storage_allocator to better carry intention.

* [lang, lang/codegen] add codegen to guard against too many event topics

* [lang/ir] apply rustfmt

* [lang/codegen] pull topic guards codegen out of topics impl codegen const

* [lang/codegen] split event topic guards into their own method

* [lang] remove duplicate re-exports

* [lang/codegen] improve error message for events with too many topics

* [core/derive] explicitly use synstructure 0.12.4

* [examples] update DNS contract example to ink! 3.0 syntax

* [examples] update ERC-721 contract example to ink! 3.0 syntax

* [examples] update multisig_plain example contract to ink! 3.0

The most work was to update the new call builders.

* [lang/ir] improve error message for bad visibility of ink! callables

* [*] update all ink! versions: 2.1.0 -> 3.0.0

* [lang/ir, lang/codegen] port InkTest proc. macro impl to new facilities

* [lang/ir] make __ink_ ident prefix check more general

* [lang/ir] make use of __ink_ idents check in other proc. macro impls

* [*] apply rustfmt

* [examples] apply rustfmt

* [lang] integrate ported #[ink::test] proc. macro

* [lang/macro] remove old proc. macro facilities

* [lang/macro] fix all passing UI tests

* [lang/ir] implement check to guard against Self return in ink! messages

* [lang/codegen] implement check to guard against non ink! storage ink! impls

This works even in precense of type aliases.

* [lang] add re-export for static_assertions

* [lang/macro] update all ink! UI failure tests

* [lang/ir] apply rustfmt

* [lang/codegen] remove commented-out code

* [lang/codegen] allow clippy::type_complexity in some cross-calling sites

* [*] remove Cargo.lock.old ... oupsi

* [examples] fix incorrected doc comments

* [metadata] remove unnecessary serde field attribute

* [metadata] rename module layout2 -> layout

* [core] rename module storage2 -> storage

* [core] apply rustfmt

* [abi] create new layout trait and structures

* [abi] remove unused import

* [abi] add missing license header

* [abi] fix clippy warning

* [primitives] add KeyPtr to ink_primitives

* [core] use KeyPtr through ink_primitives and add ExtKeyPtr trait

* [abi] use KeyPtr of ink_primitives

* [abi] make EnumLayout use StructLayout

* [abi] implement custom serde::Serialize for LayoutKey

* [abi] implement IntoCompact for layout2 module types

* [abi] add doc comment

* [abi] apply rustfmt

* [abi] add unit test for LayoutKey serialization

* [abi] rename ArrayLayout::array -> new

* [abi] add dispatch_key field to enum layout

* [abi] derive From for all Layout variants

* [abi] add unit tests for the new layout traits and data structures

* [abi] add experimental CellLayout

* [abi] make tests work again for layout2

* [abi] use specialized serializer function for LayoutKey

* [abi] refactor UnboundedLayout

* ...

* Initial tests

* Add more tests

* Clean tests

* Add invalid transfer test

* Fix test fmt

* [core] initial implementation of env revision 3

* add engine abstraction layer and implement api functions

* add support for dispatch_call to env3

* add missing invoke_runtime to api.rs

* [core] fix restore_contract docs

* [core] initial implementation of off-chain environment

* [core] clean-up of env3 fundamental types

* [core] add WasmEnv::reset_buffer

* show test submodule of env3 when compiling with rustdoc

* [core] initial implementation of the off-chain env instance

Also many other adjustments.

* [core] further enhancements to off-chain env

* [core] implement untyped Env for off-chain environment

* [core] implemented a good chunk of TypedEnv for the off-chain environment

* [core] minor improvements to env3

* [core] further improvements and additions to test-api of env3

* [core] remove former test-api file

* [core] env3: add support for ext_tombstone_deposit

* [core] env3: add setting of rent allowance in off-chain env

* [core] env3: remove buffer.rs

* [core] env3: remove property.rs

* [core] env3: mark some TypedEnv methods as not-todo

* [core] env3: enable off-chain api for non test/doc builds

* [core] env3: use a static buffer instead of Vec<u8>

* [core] env3: move static buffer into its own module

* fix doc comment

Co-Authored-By: Michael Müller <mich@elmueller.net>

* [core] env3: add missing license header

* [core] env3: remove deprecated doc note

* [core] env3: add off-chain {set/get}_runtime_storage

* [core] env3: add off-chain invoke_runtime dispatch

This also enables support for registering custom runtime call handlers.

* [core] env3: slightly improve env3::random docs comment

* [core] env3: move off-chain errors under EnvError

* [core] env3: add ext_random support for the off-chain environment

* [core] env3: minor clean ups

* [core] env3: improve TypedEncoded::assign

* [core] env3: un-mut some variables

* [core] env3: fix some clippy warnings

* [core] env3: add past_printlns to off-chain test api

* [core] env3: minor refactoring

* [core] env3: apply rustfmt

* [core] env3: clean up of call and instantiate contract

* [core] env3: rename moment -> time_stamp

* [core] env3: make get_runtime_storage return a Result instead of RetCode

* [core] env3: remove unneeded import

* [core] env3: add some trait impls for EnvTypes::Hash

* [core] env3: remove last remaining usages of RetCode

* [core] env3: refactor some errors

* [core] env3: document the EnvError enum

* [core] env3: add impls for fire methods on call and create builders

* [core] env3: add doc comment to past_printlns

* [core] env3: apply rustfmt

* [core] env3: update license headers

* [core] env3: support querying and emitting of events in off-chain env

* [core] env3: missing license header adjustment

* [core] env3: apply rustfmt

* [core] env3: rename some methods in off-chain test-api

* [core] env3: add doc comment to test::emitted_events

* [core] env3: add stub for test::advance_block

* [core] env3: rename some more test API methods

* [core] env3: initialize entropy of block randomly

* [core] env3: extend EnvTypes trait bounds

This change makes the trait bounds more similar to what Substrate defines.

* [core] env3: document SimpleArithmetic trait

* [core] env3: add From<u32> to SimpleArithmetic trait

* [core] env3: made some trait bounds more explicit in SimpleArithmetic trait

* [core] env3: add comment describing potential future extensions to SimpleArithmetic trait

* [core] env3: rename EnvTypes::Moment to TimeStamp

* [core] env3: add block_time to ChainSpec

* [core] env3: remove CodeDb again

Not needed right now. Maybe re-added at a later point.

* [core] env3: apply rustfmt

* [core] env3: implement off-chain test::advance_block

* [core] env3: fix bug in off-chain test::advance_block impl

* [core] env3: made SimpleArithmetic trait more explicit towards Output types

* [core] env3: add default initialization routines for off-chain environment

* [core] env3: remove test::create_user_account for now

* [core] env3: fix missing renaming from Moment -> TimeStamp

* [core] env3: impl PartialEq and Eq for off-chain error types

* [core] env3: add test::run_test for off-chain testing with default setup

* [core] env3: fix several minor bugs with the off-chain environment

* [core] convert key.rs tests to new env3

* [core] remove commented out code in key.rs tests

* [core] evn3: add test::get_contract_storage_rw

* [core] use env3 instead of env1 in storage cells

* [core] integrate env3 into storage::TypedChunk

* [core] remove storage::RawChunk and NonCloneMarker

* [core] adjust SyncChunk slightly for TypedChunk modifications

* [core] simplify transitioned env3 tests for TypedChunk

* [core] transition tests for SynChunk to env3

* [core] transition storage::Stash tests to env3

* [core] transition storage::HashMap tests to env3

* [core] transition storage::BinaryHeap tests to env3

* [lang] remove the entire ink! lang crate

It has been deprecated for a whole while.

* [model] remove ink! model crate entirely

It has been deprecated for a whole while.

* [core] remove the old env1 sub-module of ink_core

It has been deprecated for a whole while.

* [examples] remove model examples

* [examples] remove lang examples

* [examples] remove core examples

* remove "If given too few endowment" from docs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* fix doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* fix doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* [lang2] initial steps towards basing on env3 instead of env2

With this commit `cargo contract build` already works.
However, cargo test etc. are still broken.

* [lang2] make macros work for `cargo test`

* [core, lang2] make contracts compile as ink-as-dependency

* [lang2] make events work for ink_lang2 on env3

* [lang2] remove AccessEnv - no longer needed

* [core] remove env2

* [lang2] fix tests

- Fix warning in ink_lang2
- Remove no longer needed test case
- Adjust some passing tests after default module import removal

* [*] apply rustfmt

* [lang2] silence unused warning for now

* [core] rename {create|Create}* to {instantiate|Instantiate}*

- CreateBuilder -> InstantiateBuilder
- CreateParams -> InstantiateParams
- create -> instantiate

* [core] rename endowment -> transferred_value for CallBuilder/Params

* [examples] adjust Delegator contracts for recents changes

* [core] rename now_in_ms -> block_timestamp

* [core] follow-up of the call renamings (transferred_value)

* [lang2] rename now_in_ms -> block_timestamp

* [examples] move examples out of the examples/lang2 folder

* [examples] fix runtime-storage example contract

* [examples] fix Flipper contract

* [examples] fix Incrementer contract

* [examples] fix Erc20 contract

* [utils] add Key and byte_utils to ink_utils

* [utils -> primitives] rename ink_utils -> ink_primitives

* [*] move all links from ink_utils -> ink_primitives

* [primitives] update Cargo.toml description

* [*] use ink_primitives::Key remove ink_core::Key

* [primitives] refactor new crate, make it more usable in ink! context

* [*] relink to ink_primitives for Key usage

* [abi] refactor macros and relink to ink_primitives::Key

* [lang2] fix usage of renamed Create{Builder, Params}

* [examples] fix examples under recent changes with ink_primitives

* [*] apply rustfmt

* [lang2/macro] remove deprecated feature usage of proc_macro_hygiene

* [examples] remove deprecated proc_macro_hygiene feature

* [core] remove test_utils

* [core] rename env3 to env

* [*] rename all usages of env3 to env

* [core] fix feature usage in num-traits of ink_core Cargo.toml

* [*] update README

* [primitives] conditionally compile type_metadata from ink_primitives

* [core] make env::get_contract_storage return Option<Result<T>>

* [core] fix some faulty doc comments

* [ci] fix GitLab CI

* [primitives] fix no_std compilation

* [primitives] fix warning

* [core] make `rand` dependency optional for `std` crate feature

* [core] remove the test-env crate feature from the ink_core crate

* [core,primitives] move some tests from primitives to core

* [lang] move lang2/ to lang/

* [*] rename all instances of ink_lang2 or lang2 to ink_lang or lang

* [lang/macro] fix ink_primitives dependency

* [*] apply rustfmt

* [core] fix clippy warning

* [ci] eliminate README from examples CI checks

* [examples] apply rustfmt

* [lang/macro] improve event codegen

* [core] rename TimeStamp/time_stamp to Timestamp/timestamp

* [lang] remove unused extern crate alloc

* [core] rename env::address to env::account_id

* [lang] perform renamings on ink_lang::EnvAccess but with deprecation instead of removal

* [core] fix missing time_stamp renamings

* [lang] fix missing TimeStamp renamings

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename create_contract -> instantiate_contract

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename create_contract -> instantiate_contract

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* impr

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename endowment -> transferred_value

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* improve doc comment

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename create_contract -> instantiate_contract

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename create_contract -> instantiate_contract

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename time stamp to timestamp

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* rename SRML to env in docs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* remove SRML word from docs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* remove SRML word from docs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* [lang] fix doc comment for filtered_keys in restore_contract

* [core] rename create_contract -> instantiate_contract

* [core] rename create_contract -> instantiate_contract

* [core] fix some renamings around endowment -> transferred_value

* [lang] rename create_contract -> instantiate_contract follow-up

* [core] apply rustfmt

* [core] improve restore_contract doc comment

* [core, lang] link to ink_core::env::* doc comments from all api places

* [core] apply rustfmt

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

* Update some deps

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Format

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* Fix clippy-wasm

Signed-off-by: koushiro <koushiro.cqx@gmail.com>

* [examples] fix minor formatting issues

* [examples] fix some clippy warnings

* [lang2/macro] silence warning for ink! constructors named "new"

* [*] replace documentation link in Cargo.toml to ink! tutorial

* [abi] specify allow(clippy::trivially_copy_pass_by_ref) in a smaller scope

* [abi] specify allow(clippy::new_ret_no_self) in smaller scope

* [ci] adjust gitlab-ci.yml

* [ci] update Travis CI to just do coverage reporting

* [lang2] initial commit of ink! lang2 frontend

This is going to be the frontend for the new ink! syntax.

* [lang2] change version syntax to semantic versioning string

* [lang2] add failure test for invalid semantic version string

* [lang2] fix some unused warnings

* [lang2] change lib name to ink_lang2

* [lang2] add span to ir::data::ItemStorage

* [lang2] modernize env types codegen

* [lang2] re-introduce entry points codegen but without body for now

* [lang2] add initial storage struct codegen

* [lang2] add lang2 flipper contract example for testing purposes

* [core] impl env2::EnvTypes for DefaultSrmlTypes instead of old env::EnvTypes

* [lang2] add `0` body to entry points

* [lang2] mark fn allocate_using impl for storage struct as unsafe

* [lagn2] ignore args in Initialize::initialize impl for storage struct

* [lang2] adjust compiletests

* [core] add emit_event to EnvAccess{Mut}

* [lang2] add codegen for contract functions

* [lang2] add Signature::inputs

* [lang2] adjust and modernize compiletests

* [lang2] apply rustfmt

* [core] add generic Encode param to EmitEventParams

* [cli] bump version 0.1.1 -> 0.1.2

* [core] make it possible to use EnvAccess{Mut} directly in storage

* [core] make Selector::{from_bytes, to_bytes} const fn

* [core] add check to Decode impl for CallData

* [core] add #[inline..] annotations to some public trait impls

* [lang2] move lang2 into lang2_macro and create new lang2 helper crate

* [examples] add initial core/flipper example that acts as codegen prototype

* [core] add some more #[inline..] annotations

* [lang2] split DerefEnv into AccessEnv{Mut} and losen direct trait bounds

* [core] add efficient conversion from DynEnv<EnvAccessMut> to DynEnv<EnvAccess>

* [examples] adjust core::Flipper prototype to newest state

* [core] add env accessors to DynEnv

* [lang2] add AccessEnv{Mut} impls for DynEnv and EnvAccess{Mut}

* [lang2] use double AccessEnv trait indirection in dispatch fns

* [examples] core::flipper: add ink-dyn-alloc crate feature

Enable this to enable dynamic storage allocation for your contract.
Dynamic storage allocation is an optional drop-in feature.

* [lang2] make LICENSE and README.md sym links

* [lang2-macro] replace LICENSE and README.md with sym links

* [lang2] add access_env sub module

* [lang2] simplify Message trait concept for constructors

* [lang2] add more general error codes

* [lang2] add storage sub module

* [lang2] remove old dispatch sub module

* [lang2] implement new dispatcher based on ink_model v2

* [examples] adjust core flipper example for new codegen

* [lang2] remove some commented out code

* [lang2] rename dispatch2 to dispatch_using_mode

* [lang2] fix doc link in DispatchMode docs

* [examples] adjust core::Flipper to better reflect codegen prototype

* [lang2] rename ContractDispatch to DispatchUsingMode and add docs

* [lang2] remove unused ContractInstance trait

* [lang2] remove unneeded Msg and Constr utility types

Those types should solely be provided by the contracts themselves.
They act as namespaces for the respective message type.

* [lang2/macro] add GenerateCodeUsing trait

* [example] add explanation docs to the Flipper::get(&mut self) method

* [lang2] fix unused warning

* [lang2/macro] refactor codegen module

* [lang2/macro] remove commented-out code

* [core] add EnvAccess to allow universal usage of EnvAccess

* [lang2] no longer require separate storage structs

* [examples] adjust core/Flipper to newest ink_lang2 and ink_core changes

* [examples] remove as much direct Flipper usages as possible

* [lang2/macro] temporarily disable dispatch codegen

* [lang2/macro] add MetaInfo::is_dynamic_allocation_enabled stub

* [lang2/macro] implement initial storage codegen

* [core] remove DynEnvAccess and DynEnvAccessMut

No longer needed!

* [core] implement AccessEnv for &'a {mut} DynEnv<EnvAccess{Mut}>

* [examples] fix implementation of ink_lang2::AccesEnv for StorageAndEnv

* [examples] fix ink_core::env2::AccessEnv impl for StorageAndEnv

* [examples] move deploy and call fns into dispatch const block

* [examples] convert docs to comments because they screw up cargo expand

* [lang2/macro] remove ink_model dependency

* [lang2] fix some minor warnings and issues

* [lang2/macro] fix codegen of ink_core::env2::AccessEnv impls

* [lang2/macro] refactor and improve FunctionSelector implementation

* [lang2/macro] Signature::inputs now returns an iterator over IdentType

Was returning an iterator over FnArg before but conversion is trivial.

* [lang2/macro] add dispatch codegen

* [examples] fix DefaultSrmlTypes usage in lang2/Flipper

* [core] prepare env2 to be used with ABI generation purposes

* [examples] add ABI generation to core/Flipper

This will serve as a prototype for ink_lang2 codegen.

* [core, model] remove unneeded warnings/lints

* [lang2] make calls to AccessEnv and Flush more explicit

* [lang2/macro] no longer use no-default-features for dev-dependencies

* [lang2/macro] surpress warnings of unused imports for core::env2::AccessEnv

* [lang2/macro] fix codegen of {ink_lang2/core::env2}::AccessEnv impls

* [lang2/macro] remove unused let binding (was commented out anyways)

* [lang2/macro] fix several codegen bugs

* [examples] remove ink_model and ink_lang dependencies of lang2/Flipper

* [examples] add contract and layout bindings type annotation

* [lang2/macro] adjust some passing tests

* [lang2] add GenerateAbi trait guarded by ink-generate-abi crate feature

* [lang2/macro] move scale dependency away from ink dependencies in Cargo.toml

* [lang2/macro] add Metadata and HasLayout derives to storage structs

* [lang2/macro] insert minor whitespace between bindings and quote

* [lang2/macro] add abi module to generate ABI generating code

* [lang2/macro] add Function::{filter_constructor, filter_message}

* [lang2/macro] fix bug that non-ink! filter for attributes was off

* [lang2/macro] make use of iterative array quoting in Dispatch codegen

* [lang2/macro] add utility to filter doc attributes and parse them to readable string

* [lang2/macro] add codegen for ABI generation

* [example] adjust lang2/Flipper abi-gen package

* [lang2/macro] ink::contract params adjustments

- make `env` param default to ink_core::env2::DefaultSrmlTypes
- add `dynamic_allocations = {true|false}`, default: false
- add `compile_as_dependency = {true|false}`, default: false

* [lang2/macro] adjust passing tests to new contract params

* [examples] adjust lang2/Flipper to new contract params

We enable dynamic_allocations for now since disabling it causes other errors.

* [lang2/macro] add different HasLayout impl for dynamic_allocations {true|false}

* [examples] lang2/Flipper no longer requires dynamic_allocations = true

* [lang2] rename AccessEnv::env to AccessEnv::access_env

This helps to disambiguate certain other `env` methods and trait impls

* [examples] adjust core/Flipper example

* [core] refactor event emitting interfaces in env2

* [examples] core/Flipper: fix env types aliases

* [examples] core/Flipper: adjust to new event emitting

Also:
- messages and constructors no longer can access private fields from StorageAndEnv
- rename __ink_storage to __ink_private
- add __ink_events module in __ink_private defining all events and utilities
- general rust formatting

* [core] add EmitEvent utility trait

This allow to disambiguate the contract's provided EmitEvent trait

* [examples] core/Flipper: make it impossible to ambiguate emitting of events

* [lang2/macro] rename contract_module.rs to contract.rs

* [lang2/macro] generated messages and constructors can no longer access internals of StorageAndEnv

* [lang2/macro] apply rustfmt

* [lang2/macro] add event codegen

- ABI generation codegen for events is still missing

* [lang2/macro] adjust some pass UI tests to new event codegen

* [lang2/macro] re-export the contract on crate root again

This is done for ABI creation since otherwise the abi-gen tool couldn't access the data.

* [lang2/macro] add ABI generation for events

* [lang2/macro] add Erc721 UI pass test

* [lang2/macro] add missing codegen for ABI event args docs

* [lang2/macro] fix a bug that ABI codegen would always impl GenerateAbi for Flipper

* [lang2/macro] add derive(Metadata) to Error enum for Erc721 test

* [core] add missing Initialize::default_value impls

* [core] add Debug impls for some env types

* [examples] core/Flipper: add code to allow for offchain testability

* [examples] core/Flipper: add error handling for test env init

* [lang2/macro] add docs to ABI generation of event args

* [examples] core/Flipper: adjust to improve testability

- No longer requires <Flipper as Testable>::constructor
- packs whole of flipper contract in associated flipper module such as what ink_lang2 does

* [lang2/macro] add filter_ink_attributes and has_ink_attributes to utilities

* [lang2/macro] re-export utils from ir

* [lang2/macro] add ir::utils::is_ink_attribute

* [lang2/macro] allow non-ink! items in the contract module

* [lang2/macro] add test for non-ink! module items

* [lang2/macro] apply rustfmt on UI tests

* [lang2/macro] fix 02 ui fail test

* [lang2/macro] generate code for non-ink! module items

* [lang2/macro] move utilities inside the contract module - because we can!!

* [lang2/macro] adjust compile tests for most recent changes

* [lang2/macro] add compile test for missing messages

* [lang2/macro] fix some minor warnings

* [lang2/macro] add a lint to check if all identifiers respect not starting with __ink

* [lang2/macro] add simple test for __ink starting identifiers lint

* [lang2/macro] update docs of idents_respect_pred

* [lang2] apply rustfmt

* [core] apply rustfmt to env2 module

* [lang2/macro] add ir::utils::filter_non_ink_attributes

* [lang2/macro] make use or ir::utils::filter_non_ink_attributes

* [lang2/macro] re-export contract on crate root only for ABI generation

* [lang2/macro] documented code generation principles

* [examples] add Erc20 token example for lang2

* [lang2/macro] refactor event codegen

* [lang2/macro] move dispatch codegen into __ink_private

This hides `Msg` and `Constr` namespaces into __ink_private.

* [lang2/macro] move ABI generation codegen into __ink_private

* [lang2/macro] add test to forbig accessing generated storage fields

* [lang2/macro] extend test to forbig accessing generated storage fields

* [lang2] implement testable contracts codegen

* [lang2/macro] do not generate dispatch code for tests or if `test-env` is enabled

* [examples] lang2/Flipper: add contract tests

* [lang2/macro] add simple tests to flipper test

* [examples] remove core/Flipper example again

This was decided after we felt that maintaining it was more of a burden than it being a help for further development.

* [lang2/macro] apply rustfmt

* [core] refactor env2 cross-calling infrastructure

* [core] move seals into utils

* [examples] lang2/Flipper: add default_works test

* [lang2/macro] add cross-contract calling

* [lang2/macro] add cross-contract calling test

* [lang2] remove CreateForwarder infrastructure since unneeded

* [lang2/macro] do not generate code for Events when compiled as dependency

* [lang2/macro] remove strange semi-comments in Msg and Constr

* [lang2/macro] add Debug derive to StorageAsDependency

* [examples] add Delegator contract based on ink_lang2

* [core] guard calling CreateBuilder::using_code at compile-time

* [lang2] fix some clippy warnings

* [chores] update README

* [lang2/macro] refactor into_hir: use ir types through ir module

* fix typo

Co-Authored-By: Michael Müller <mich@elmueller.net>

* fix typo in lang2/macro/src/ir/into_hir.rs

Co-Authored-By: Michael Müller <mich@elmueller.net>

* fix typo in examples/lang2/delegator/adder/lib.rs

Co-Authored-By: Michael Müller <mich@elmueller.net>

* fix typo in lang2/macro/src/codegen/cross_calling.rs

Co-Authored-By: Michael Müller <mich@elmueller.net>

* fix typo in core/src/env2/traits.rs

Co-Authored-By: Michael Müller <mich@elmueller.net>

* fix typo in lang2/macro/src/codegen/contract.rs

Co-Authored-By: Michael Müller <mich@elmueller.net>

* [lang2/macro] improve some ink! error messages

* [lang2/macro] remove commented-out code

* fix typo in lang2/macro/src/codegen/dispatch.rs

Co-Authored-By: Michael Müller <mich@elmueller.net>

* [lang2/macro] remove ancient Cargo.toml artifacts

* [examples] fix typo and enhance delegator docs a bit

* use `#!/usr/bin/env` instead of `#!/bin/bash`

Co-Authored-By: Michael Müller <mich@elmueller.net>

* [lang2] apply rustfmt

* [core] env2: apply rustfmt

* [cli] adjust CLI to generate ink_lang2 contract upon new command

* [lang2/macro] generate some #[inline] annotations on some generated cross-calling interfaces

* [examples] improve Delegator example slightly

* [core] fix bug that SrmlEnv tried to impl traits for TestEnv

* [examples] fix bug that .ink/abi_gen was using incorrect crate features

* [cli,examples] fix all abi_gen/Cargo.toml files

* [examples] fix bugs in some examples

* [lang2/macro] suppress some unused_parens warnings

* [examples] add incrementer as lang2 example

* [lang2/macro] make codegen more precise when using traits

* [lang2/macro] "fix" a bug in cross-calling codegen

The fix is actually a hack that we should remove again as soon as possible by a proper solution.

* [core] rename ext_create to ext_instantiate

* [examples] lang2/Delegator: fix some warnings and added Delegator::get

* [examples] lang2/Erc20: add Erc20::allowance

* [core] fix bug in executing ext::scratch_read causing panic

* [core] remove unused println statements in tests

* [examples] delegator: minor improvements

* [core] add initial call builder implementation

* [core] add setters to CallBuilder

* [core] fix invalid mod import in no_std

* [lang] initial remote call implementation for ink_lang

* [examples] add ink-as-dependency crate feature to erc20 token contract

* [core] move calls and call error definitions

* [core] add ext_create support

* [*] apply rustfmt

* [core] expose ReturnType publicly

* [core] add ext_create impl on the SRML interfacing side

* [core] fix minor invalid module import

* [lang] split CallEnhancer into mut and immutable versions

* [lang] forward to call enhancers from short-version of remote calling

* [core] improve create builder to return the contract directly

* [lang] simplify env types code generation

* [lang] add create call builder code generation

* [lang] improve code gen by altering spans of the generated code

* [examples] add ink-as-dependency to all lang examples

* [cli] add ink-as-dependency to smart contract template

* [lang] fix code gen bug with forwarding references

* [lamg] move impls out of const item

It seems that inherent impls shouldn't be put inside a const item.

* [core] impl Default for Hash

* [lang] add Flush, scale::{Encode, Decode} for contracts as dependencies

* [examples] add example to call remote smart contracts

* [examples] remove invalid test code from delegator contract

* [abi] fix warning about suffixed tuple indices

* [lang] fix bug in generate-abi codegen for deploy handler with multiple args

* [lang] derive from type_metadata::Metadata for contract structs

* [examples] ran cargo fmt

* [examples] derive type_metadata::Metadata for Which

* [examples] make code hashes deploy inputs for delegator contract

* [core] rename gas_cost to gas_limit

* [core] remove parts that got re-introduced accidentally upon merge

* [examples] add a README to the delegator contract

* [examples] restructure delegator project structure

* [examples] fix Cargo.toml of delegator

* [lang] fix bug that ink-as-dependency derives Metadata for the state struct

* [lang] add getter for account_id of ink-as-dependency state structs

* [examples] adjust Delegator contract to make it work with old ABI generator

* [lang] import FromAccountId

* [examples] provide a build.sh script to deploy delegator contract

* [readme] add section about wabt and wasm-utils tools

* [readme] add off-chain test for the example smart contract

* [examples] add .value call to contract create calls of delegator

* [*] use fix-serialization branch of type-metadata

* [*] use type-metadata master branch again (PR was merged)

* [lang] update the noop compile test

* [lang] simplified the noop compile test doc comments

* [lang] fix compiletest for Flipper contract

* [lang] fix compile tests for incrementer contract

* [lang] fix compile tests for Events contract

* [scripts] do not check the Delegator for now (needs special treatment)

* [ci] update rust version from nightly-2019-08-13 to nightly-2019-08-30

* [examples] restructure delegator contract project structure

* [scripts] make check-examples script simpler again after delegator refactoring

* [examples] clean up Delegator contract

* [examples] improve build guidance of Delegator contract

* [abi] Create ink_abi sub crate

* [abi] Add initial types for abi generation

* [abi] Add EventParamSpec to include indexed event params

* [abi] Add documentation field to specs

* [abi] Add license and readme links and clean up authors

* [abi] Add missing license headers

* [abi] Fix some compile errors

* [abi] Make macros usable internally

* [abi] Create type_spec_of_tuple constructor macro

* [abi] Implement serialization for tuples

* [abi] Implement serialize for array types

* [abi] Remove module prefix of Vec<T>

* [abi] Apply rustfmt

* [abi] Improve minor formatting

* [abi] Add trait to allow external crate to specify serialize of TypeSpec<T>

* [abi] Make rustfmt happy

* [abi] Handle missing Vec in no_std environment

We really need a further abstraction to handle memory types.
Right now they life in ink_core but we shouldn't depend on ink_core from within ink_abi.
So we want to extract the memory sub module out of ink_core into its own crate that we can from then on depend on.

* [abi] Use same array pre-impls as metadata prototype impl

* [abi] Depend on cennznet/type-metadata + adjustments

* [abi] add missing license headers

* [abi] fixes for renamings in type-metadata crate

* [abi] add IntoCompact impls for layout types

* [abi] properly forward std feature

* [abi] implement Serialize for Key

* [abi] apply rustfmt and add some layout constructors

This also removes the dependency from ink_abi to ink_core and adds derive feature to type-metadata dependency.

* [core] implement ink_abi traits for ink_core abstractions

* adjust ink_abi Cargo.toml to using std feature by default

# Conflicts:
#	abi/Cargo.toml

* [core] Integrate ink_abi no_std compat into ink_core

* [lang] initial skeleton of codegen for ink_abi

* Enhance Flush (#136)

* [core] Enhance Flush trait to make it work with SyncCell and SyncChunk

* apply rustfmt

* [core] implement ink_abi traits for ink_core abstractions

* [core] Integrate ink_abi no_std compat into ink_core

* [core] Apply cargo fmt

* [cli] initial adjustments for ink_abi to ink! template

* [abi] clean-up of Cargo.toml

* [abi] remove invalid lib docs

* [utils] Update utilities docs

* [abi] improve JSON encoding of layout structs

* [abi] improve JSON encoding and add builder pattern constructors

* [abi] Add InkProject meta type

* [abi] temporarily depend on improve-json-output type-metadata branch

* [core] adjust type-metadata temporary branch to use the same as ink_abi

* [ci] add travis CI nightly-2019-08-01 channel (experimental)

* [abi] add MessageSpecBuilder::{args, docs} methods

* [core] implement Metadata for AccountId and Hash of DefaultSrmlTypes

* [abi] change type of selector from u64 to u32

* [lang] add some helper routines

* [lang] add code generation for new ABI format

* [abi,core] use master branch for type-metadata again

* [lang] implement initial code gen for ABI generation

* [examples] adjust Flipper contract example to ink_abi generation

* [lang] remove old generate-abi-description feature and associated code

* [examples] remove traces of removed generate-api-description feature

* [core] make cells_origin and chunks_origin only visible for test-env

* [cli] adjust template for ink-abi update

* [abi] implement ink_abi_derive for HasLayout derive macro

* [lang] make use of new ink_abi_derive functionality

* [examples] adjust Flipper for new ink_abi derive crate feature

This is needed because we disable default features.

* [abi] remove some commented-out code

* [chores] update README and include ink_abi docs

* [abi] apply rustfmt

* [lang] apply rustfmt

* [abi] apply rustfmt to non derive crate

* [core] apply rustfmt

* [lang] trim doc strings coming from syn::Attribute

* [examples] rename .tools directory to .ink

* [examples] fix bug with no_std and "std" crate feature

* [lang] fix bug in abi generation for events

* [examples] adjust events example to new ink_abi

* [lang] fix some more edge cases with doc string trimming

* [lang] fix a bug that path matching for function arguments was off

* [examples] adjust Incrementer to new ink_abi

* [cli] rename .tools to .ink in template

* [cli] update template Cargo.toml

* [examples] temporarily fix type-metadata hick-up

* [examples] make ink_abi optional

* [examples] adjust Erc20 token example to new ink_abi

* [cli] fix template no_std support

* [*] use master branch of type-metadata crate again

* [examples] replace parity-codec/std with scale/std

* [core] derive Metadata for some util types

This unfortunately was lost upon the latest rebase.

* [ci] update from nightly-2019-08-01/2019-07-19 to just nightly-2019-08-09

* [abi] remove commented-out code

* [abi] add some docs to specs items

* Update abi/src/specs.rs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* Update abi/src/specs.rs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* Update core/src/storage/collections/stash/impls.rs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* Update core/src/storage/collections/stash/impls.rs

Co-Authored-By: Andrew Jones <ascjones@gmail.com>

* [examples] remove some more commented-out code

* [lang] remove outdated docs

* [lang] extract fn docs impl into helper method

* [lang] fix compile-error in `filter_doc_attributes`

* [core] use derive feature from ink_abi

* [examples] adjust shared_vec example for ink_abi

* [lang] trim doc comments raw string escape sequence

* [lang] adjust noop test for ink_abi

* [lang] adjust flipper test for ink_abi

* [lang] improve raw-string char sequence fix

* [lang] adjust incrementer test for ink_abi

* [lang] adjust events test for ink_abi

* [lang] fix whitespace (tabs) issues in lang tests

* [ci] add examples to CI

* [ci] remove +nightly attribute for examples

* [abi] remove instances of std usage

* [core] remove instances of std usage

* [examples] erc20: remove std usage in no_std environment

* [core] factor out ink_abi and type-metadata and guard their use with ink-generate-abi feature

* [examples] adjust examples to newest refactoring in ink_core

* [cli] adjust template to ink_core refactorings

* [scripts] add new script to quickly check all example smart contracts

* [ci] make use of new check-examples script

* [*] apply rustfmt

* [scripts] adjust check-examples to no longer set test-env

* [scripts] Add check-workspace script

* [examples] make test-env a default feature

* [cli] make test-env a default feature for the template

* [ci] update CI to use the new check-workspace script

* make std crate feature default for all ink crates

* adjust travis CI for builds without std feature enabled

* remove incorrect usages of ink_abi

* apply rustfmt

* remove invalid type-metadata dependencies for ink_core

* [lang] fix Cargo.toml indentations

* adjust Erc20 token examples for new std crate feature

* adjust template and lang example std feature and propagation

* [ink] Fix some clippy warnings

* [lang] Major clean ups in preparation of greater refactorings

* [core] Factor nightly alloc parts out of core into new alloc ink crate

* Further cleanup after factoring out ink_alloc crate

* [alloc] Use symlinks instead of copies

This is an improved CellChunkAllocator that uses a lot less storage.
It uses a bitvector under the hood instead of stashes.
This decreases storage usage drastically.
However, since the current implementation uses a first fit approach its allocation procedure might be slower if many (> 3000) dynamic allocations exist at the same time.

This is to separate pure allocators from those that can also deallocate.

Note: No other changes and renamings have been done yet so the crate is currently not in a compilable state.

The same name is used in Substrate.

This is the first step in improving the allocation interfaces.