* Make `decl_error!` errors usable
This pr implements support for returning errors of different pallets in
a pallet. These errors need to be declared with `decl_error!`.
The pr changes the following:
- Each dispatchable function now returns a `DispatchResult` which is an
alias for `Result<(), DispatchError>`.
- `DispatchError` is an enum that has 4 variants:
- `Other`: For storing string error messages
- `CannotLookup`: Variant that is returned when something returns a
`sp_runtime::LookupError`
- `BadOrigin`: Variant that is returned for any kind of bad origin
- `Module`: The error of a specific module. Contains the `index`,
`error` and the `message`. The index is the index of the module in
`construct_runtime!`. `error` is the index of the error in the error
enum declared by `decl_error!`. `message` is the message to the error
variant (this will not be encoded).
- `construct_runtime!` now creates a new struct `ModuleToIndex`. This
struct implements the trait `ModuleToIndex`.
- `frame_system::Trait` has a new associated type: `ModuleToIndex` that
expects the `ModuleToIndex` generated by `construct_runtime!`.
- All error strings returned in any module are being converted now to `DispatchError`.
- `BadOrigin` is the default error returned by any type that implements `EnsureOrigin`.
* Fix frame system benchmarks
* clean up cargo.toml syntax
* bumping versions to 2.0
* bump networking to 0.8
* move consensus down to 0.8
* bump consensus pallets to 0.8.0, too
* Upping babe and aura pallets
* add remaining, missing version definitions
* missed some
* Adding script for rename, could be applicable for nodes on top of it, too
* add stderr and gitlab ci features
* apply script
* fix now minor details in expected stderr
* Update the Cargo.lock
* fix name: sc-transaction -> sc-tracing
* fix rename in script, too
* define slashing spans
* tests and pruning for slashing-spans record
* validators get slashed before nominators
* apply slash to nominators as well
* chill and end slashing spans
* actually perform slashes
* integration (tests failing)
* prune metadata
* fix compilation
* some tests for slashing and metadata garbage collection
* correctly pass session index to slash handler
* test span-max property for nominators and validators
* test that slashes are summed correctly
* reward value computation
* implement rewarding
* add comment about rewards
* do not adjust slash fraction in offences module
* fix offences tests
* remove unused new_offenders field
* update runtime version
* fix up some docs
* fix some CI failures
* remove no-std incompatible vec! invocation
* try to fix span-max rounding error
* Update srml/staking/src/slashing.rs
Fix type: winow -> window
Co-Authored-By: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
* slashes from prior spans don't kick validator again
* more information for nominators, suppression
* ensure ledger is consistent with itself post-slash
* implement slash out of unlocking funds also
* slashing: create records to be applied after-the-fact
* queue slashes for a few eras later
* method for canceling deferred slashes
* attempt to fix test in CI
* storage migration for `Nominators`
* update node-runtime to use SlashDeferDuration
* adjust migration entry-points somewhat
* fix migration compilation
* add manual Vec import to migration
* enable migrations feature in node-runtime
* bump runtime version
* update to latest master crate renames
* update to use ensure-origin
* Apply suggestions from code review
use `ensure!`
Co-Authored-By: Gavin Wood <gavin@parity.io>
* fix multi-slash removal
* initialize storage version to current in genesis
* add test for version initialization
Benjamin Kampmann