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analyzer/runtime: Register special runtime addresses #516

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Sep 14, 2023
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analyzer/runtime: Register special runtime addresses #516

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28 changes: 19 additions & 9 deletions analyzer/runtime/runtime.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@ import (
"strings"

sdkConfig "github.com/oasisprotocol/oasis-sdk/client-sdk/go/config"
"github.com/oasisprotocol/oasis-sdk/client-sdk/go/modules/rewards"
sdkTypes "github.com/oasisprotocol/oasis-sdk/client-sdk/go/types"

"github.com/oasisprotocol/nexus/analyzer"
Expand Down Expand Up @@ -77,18 +76,29 @@ func (m *processor) StringifyDenomination(d sdkTypes.Denomination) string {
return d.String()
}

// Extends `batch` with a query that will register a module address derived from "<module>.<kind>".
// See `Address::from_module` in runtime-sdk (Rust) or equivalently NewAddressForModule in client-sdk (Go).
func registerModuleAddress(batch *storage.QueryBatch, module string, kind string) {
batch.Queue(
queries.AddressPreimageInsert,
sdkTypes.NewAddressForModule(module, []byte(kind)), // address. This is how the actual runtime derives its own special addresses. The computed value is often not exposed in client-sdk.
sdkTypes.AddressV0ModuleContext.Identifier, // context_identifier. Input to the derivation.
int32(sdkTypes.AddressV0ModuleContext.Version), // context_version. Input to the derivation.
module+"."+kind, // address_data. Input to the derivation; the part that's the most interesting to human readers.
)
}

// Implements BlockProcessor interface.
func (m *processor) PreWork(ctx context.Context) error {
batch := &storage.QueryBatch{}

// Register special addresses.
batch.Queue(
queries.AddressPreimageInsert,
rewards.RewardPoolAddress.String(), // oasis1qp7x0q9qahahhjas0xde8w0v04ctp4pqzu5mhjav on mainnet oasis-3
sdkTypes.AddressV0ModuleContext.Identifier, // context_identifier
int32(sdkTypes.AddressV0ModuleContext.Version), // context_version
"rewards.reward-pool", // address_data (reconstructed from NewAddressForModule())
)
// Register special addresses. Not all of these are exposed in the Go client SDK; search runtime-sdk (Rust) for `Address::from_module`.
registerModuleAddress(batch, "rewards", "reward-pool") // oasis1qp7x0q9qahahhjas0xde8w0v04ctp4pqzu5mhjav
registerModuleAddress(batch, "consensus_accounts", "pending-withdrawal") // oasis1qr677rv0dcnh7ys4yanlynysvnjtk9gnsyhvm6ln
registerModuleAddress(batch, "consensus_accounts", "pending-delegation") // oasis1qzcdegtf7aunxr5n5pw7n5xs3u7cmzlz9gwmq49r
registerModuleAddress(batch, "accounts", "common-pool") // oasis1qz78phkdan64g040cvqvqpwkplfqf6tj6uwcsh30
registerModuleAddress(batch, "accounts", "fee-accumulator") // oasis1qp3r8hgsnphajmfzfuaa8fhjag7e0yt35cjxq0u4

if err := m.target.SendBatch(ctx, batch); err != nil {
return err
}
Expand Down