complete simapp

Author: vladjdk

evmd/.gitignore

@@ -0,0 +1 @@
+scripts/node-data

evmd/Dockerfile

@@ -0,0 +1,15 @@
+FROM golang:1.25-alpine AS builder
+
+RUN apk add --no-cache curl build-base git bash file linux-headers eudev-dev
+
+WORKDIR /src
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN LEDGER_ENABLED=false make build
+
+FROM alpine:3.21
+COPY --from=builder /src/build/evmd /bin/evmd
+ENTRYPOINT ["evmd"]

evmd/Makefile

@@ -0,0 +1,159 @@
+BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
+COMMIT := $(shell git log -1 --format='%H')
+APPNAME := evm
+BUILDDIR ?= $(CURDIR)/build
+DOCKER := $(shell which docker)
+
+# don't override user values
+ifeq (,$(VERSION))
+  VERSION := $(shell git describe --exact-match 2>/dev/null)
+  # if VERSION is empty, then populate it with branch's name and raw commit hash
+  ifeq (,$(VERSION))
+    VERSION := $(BRANCH)-$(COMMIT)
+  endif
+endif
+
+help: ## List Commands
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+.PHONY: help
+
+check-all: ## Convenience to make sure everything is all good
+#	@$(MAKE) proto-all # Uncomment if we add custom modules
+	@$(MAKE) build
+	@$(MAKE) test-unit
+	@$(MAKE) lint
+	@$(MAKE) e2e-contracts
+	@$(MAKE) test-e2e
+
+.PHONY: all
+
+################################################################################
+##                                   Build                                    ##
+################################################################################
+
+# forces Go to use its pure Go implementation of the DNS resolver
+build_tags = netgo 
+build_tags += $(BUILD_TAGS)
+build_tags := $(strip $(build_tags))
+
+whitespace :=
+empty = $(whitespace) $(whitespace)
+comma := ,
+build_tags_comma_sep := $(subst $(empty),$(comma),$(build_tags))
+
+# process linker flags
+
+# TODO: Figure out if '-s -w' is still needed 
+# flags '-s -w' resolves an issue with xcode 16 and signing of go binaries
+# ref: https://github.com/golang/go/issues/63997
+ldflags = -X github.com/cosmos/cosmos-sdk/version.Name=$(APPNAME) \
+		  -X github.com/cosmos/cosmos-sdk/version.AppName=$(APPNAME) \
+		  -X github.com/cosmos/cosmos-sdk/version.Version=$(VERSION) \
+		  -X github.com/cosmos/cosmos-sdk/version.Commit=$(COMMIT) \
+		  -X "github.com/cosmos/cosmos-sdk/version.BuildTags=$(build_tags_comma_sep)" \
+		  -s -w
+
+ifeq ($(LINK_STATICALLY),true)
+	ldflags += -linkmode=external -extldflags "-Wl,-z,muldefs -static"
+endif
+ldflags += $(LDFLAGS)
+ldflags := $(strip $(ldflags))
+
+BUILD_FLAGS := -tags "$(build_tags_comma_sep)" -ldflags '$(ldflags)' -trimpath
+
+clean: ## Clean build artifacts
+	rm -rf $(BUILDDIR)/ artifacts/
+
+build: go.sum ## Build chain binary
+	@echo "Building chain binary"
+	go build -mod=readonly $(BUILD_FLAGS) -o $(BUILDDIR)/evmd ./cmd/evmd
+
+
+
+.PHONY: build clean
+
+################################################################################
+##                                   Test                                     ##
+################################################################################
+
+test-unit: ## Run unit tests
+	@echo Running unit tests...
+	@go test -mod=readonly -v -timeout 30m ./...
+
+test-race: ## Run unit tests with race condition reporting
+	@echo Running unit tests with race condition reporting...
+	@go test -mod=readonly -v -race -timeout 30m ./...
+
+test-e2e: ## Run e2e tests  
+	@echo Running e2e tests...
+	@cd e2e && go test -parallel 8 -mod=readonly -v -count=1 -timeout 30m .
+
+.PHONY: test-unit test-race
+
+################################################################################
+##                                   Install                                  ##
+################################################################################
+
+install: ## Install dependencies
+	@echo "--> ensure dependencies have not been modified"
+	@go mod verify
+	@echo "--> installing $(APPNAME)d"
+	@go install $(BUILD_FLAGS) -mod=readonly ./cmd/$(APPNAME)d
+
+.PHONY: install
+
+################################################################################
+##                                   Protobuf                                 ##
+################################################################################
+
+protoVer=0.17.1
+protoImageName=ghcr.io/cosmos/proto-builder:$(protoVer)
+protoImage=$(DOCKER) run --rm -v $(CURDIR):/workspace --workdir /workspace $(protoImageName)
+
+proto-all: proto-format proto-lint proto-gen ## Generate Protobuf files
+
+proto-gen: ## Generate Protobuf files
+	@echo "Generating Protobuf files"
+	@$(protoImage) sh ./scripts/protocgen.sh
+	@go mod tidy
+
+proto-format: ## Format Protobuf files
+	@echo "Formatting Protobuf files"
+	@$(protoImage) find ./ -name "*.proto" -exec clang-format -i {} \;
+
+proto-lint: ## Lint Protobuf files
+	@$(protoImage) buf lint --error-format=json
+
+.PHONY: proto-all proto-gen proto-format proto-lint
+
+################################################################################
+##                                   Linting                                  ##
+################################################################################
+
+golangci_lint_cmd=golangci-lint
+
+lint: ## Run linter
+	@echo "--> Running linter"
+	@$(golangci_lint_cmd) run ./... --timeout 15m -c .golangci.yml
+	@cd e2e && $(golangci_lint_cmd) run ./... --timeout 15m -c ../.golangci.yml
+
+lint-fix: ## Run linter and fix issues
+	@echo "--> Running linter and fixing issues"
+	@$(golangci_lint_cmd) run ./... --fix --timeout 15m -c .golangci.yml
+	@cd e2e && $(golangci_lint_cmd) run ./... --fix --timeout 15m -c ../.golangci.yml
+
+.PHONY: lint lint-fix
+
+################################################################################
+##                          E2E Contract Artifacts                            ##
+################################################################################
+
+SOLC_IMAGE ?= ethereum/solc:0.8.28
+E2E_CONTRACTS_DIR ?= e2e/contracts
+
+e2e-contracts: ## Regenerate e2e embedded contract artifacts (ABI/BIN)
+	@echo "--> Regenerating e2e contract artifacts with $(SOLC_IMAGE)"
+	@docker run --rm -v $(CURDIR)/$(E2E_CONTRACTS_DIR):/contracts $(SOLC_IMAGE) --abi --bin -o /contracts --overwrite /contracts/Counter.sol /contracts/Reverter.sol
+
+.PHONY: e2e-contracts

evmd/app/app.go

@@ -74,12 +74,18 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/consensus"
 	consensuskeeper "github.com/cosmos/cosmos-sdk/x/consensus/keeper"
 	consensustypes "github.com/cosmos/cosmos-sdk/x/consensus/types"
+	"github.com/cosmos/cosmos-sdk/x/distribution"
+	distrkeeper "github.com/cosmos/cosmos-sdk/x/distribution/keeper"
+	distrtypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
 	"github.com/cosmos/cosmos-sdk/x/genutil"
 	genutiltypes "github.com/cosmos/cosmos-sdk/x/genutil/types"
 	"github.com/cosmos/cosmos-sdk/x/gov"
 	govclient "github.com/cosmos/cosmos-sdk/x/gov/client"
 	govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
 	govtypes "github.com/cosmos/cosmos-sdk/x/gov/types"
+	"github.com/cosmos/cosmos-sdk/x/slashing"
+	slashingkeeper "github.com/cosmos/cosmos-sdk/x/slashing/keeper"
+	slashingtypes "github.com/cosmos/cosmos-sdk/x/slashing/types"
 	"github.com/cosmos/cosmos-sdk/x/staking"
 	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
@@ -101,6 +107,7 @@ var (
 	// module account permissions
 	maccPerms = map[string][]string{
 		authtypes.FeeCollectorName:     nil,
+		distrtypes.ModuleName:          nil,
 		stakingtypes.BondedPoolName:    {authtypes.Burner, authtypes.Staking},
 		stakingtypes.NotBondedPoolName: {authtypes.Burner, authtypes.Staking},
 		govtypes.ModuleName:            {authtypes.Burner},
@@ -139,6 +146,8 @@ type App struct {
 	AccountKeeper         authkeeper.AccountKeeper
 	BankKeeper            bankkeeper.Keeper
 	StakingKeeper         *stakingkeeper.Keeper
+	SlashingKeeper        slashingkeeper.Keeper
+	DistributionKeeper    distrkeeper.Keeper
 	GovKeeper             govkeeper.Keeper
 	IBCKeeper             *ibckeeper.Keeper
 	UpgradeKeeper         *upgradekeeper.Keeper
@@ -186,8 +195,8 @@ func New(
 
 	keys := storetypes.NewKVStoreKeys(
 		authtypes.StoreKey, banktypes.StoreKey, stakingtypes.StoreKey,
-		govtypes.StoreKey, upgradetypes.StoreKey, consensustypes.StoreKey,
-		ibcexported.StoreKey,
+		distrtypes.StoreKey, slashingtypes.StoreKey, govtypes.StoreKey,
+		upgradetypes.StoreKey, consensustypes.StoreKey, ibcexported.StoreKey,
 		// Cosmos EVM store keys
 		evmtypes.StoreKey, feemarkettypes.StoreKey,
 	)
@@ -258,6 +267,16 @@ func New(
 		appCodec, runtime.NewKVStoreService(keys[stakingtypes.StoreKey]), app.AccountKeeper, app.BankKeeper, authAddr, address.NewBech32Codec(sdk.GetConfig().GetBech32ValidatorAddrPrefix()), address.NewBech32Codec(sdk.GetConfig().GetBech32ConsensusAddrPrefix()),
 	)
 
+	app.DistributionKeeper = distrkeeper.NewKeeper(appCodec, runtime.NewKVStoreService(keys[distrtypes.StoreKey]), app.AccountKeeper, app.BankKeeper, app.StakingKeeper, authtypes.FeeCollectorName, authAddr)
+
+	app.SlashingKeeper = slashingkeeper.NewKeeper(appCodec, app.LegacyAmino(), runtime.NewKVStoreService(keys[slashingtypes.StoreKey]), app.StakingKeeper, authAddr)
+
+	// register the staking hooks
+	// NOTE: stakingKeeper above is passed by reference, so that it will contain these hooks
+	app.StakingKeeper.SetHooks(
+		stakingtypes.NewMultiStakingHooks(app.DistributionKeeper.Hooks(), app.SlashingKeeper.Hooks()),
+	)
+
 	// get skipUpgradeHeights from the app options
 	skipUpgradeHeights := map[int64]bool{}
 	for _, h := range cast.ToIntSlice(appOpts.Get(server.FlagUnsafeSkipUpgrades)) {
@@ -278,12 +297,12 @@ func New(
 	*/
 	govKeeper := govkeeper.NewKeeper(
 		appCodec, runtime.NewKVStoreService(keys[govtypes.StoreKey]), app.AccountKeeper, app.BankKeeper,
-		app.StakingKeeper, dummyDistrKeeper{}, app.MsgServiceRouter(), govConfig, authAddr,
+		app.StakingKeeper, app.DistributionKeeper, app.MsgServiceRouter(), govConfig, authAddr,
 	)
 
 	app.GovKeeper = *govKeeper.SetHooks(
 		govtypes.NewMultiGovHooks(
-			// register the governance hooks
+		// register the governance hooks
 		),
 	)
 
@@ -312,6 +331,7 @@ func New(
 	).WithStaticPrecompiles(
 		StaticPrecompiles(
 			*app.StakingKeeper,
+			app.DistributionKeeper,
 			app.BankKeeper,
 			app.GovKeeper,
 			app.IBCKeeper.ClientKeeper,
@@ -341,6 +361,8 @@ func New(
 		auth.NewAppModule(appCodec, app.AccountKeeper, nil, nil),
 		bank.NewAppModule(appCodec, app.BankKeeper, app.AccountKeeper, nil),
 		gov.NewAppModule(appCodec, &app.GovKeeper, app.AccountKeeper, app.BankKeeper, nil),
+		slashing.NewAppModule(appCodec, app.SlashingKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper, nil, app.interfaceRegistry),
+		distribution.NewAppModule(appCodec, app.DistributionKeeper, app.AccountKeeper, app.BankKeeper, app.StakingKeeper, nil),
 		staking.NewAppModule(appCodec, app.StakingKeeper, app.AccountKeeper, app.BankKeeper, nil),
 		upgrade.NewAppModule(app.UpgradeKeeper, app.AccountKeeper.AddressCodec()),
 		consensus.NewAppModule(appCodec, app.ConsensusParamsKeeper),
@@ -378,6 +400,8 @@ func New(
 	// NOTE: staking module is required if HistoricalEntries param > 0
 	app.ModuleManager.SetOrderBeginBlockers(
 		// Cosmos EVM BeginBlockers
+		distrtypes.ModuleName,
+		slashingtypes.ModuleName,
 		stakingtypes.ModuleName,
 		genutiltypes.ModuleName,
 		ibcexported.ModuleName,
@@ -393,6 +417,8 @@ func New(
 		banktypes.ModuleName,
 		govtypes.ModuleName,
 		stakingtypes.ModuleName,
+		distrtypes.ModuleName,
+		slashingtypes.ModuleName,
 		authtypes.ModuleName,
 		ibcexported.ModuleName,
 
@@ -411,7 +437,9 @@ func New(
 	genesisModuleOrder := []string{
 		authtypes.ModuleName,
 		banktypes.ModuleName,
+		distrtypes.ModuleName,
 		stakingtypes.ModuleName,
+		slashingtypes.ModuleName,
 		govtypes.ModuleName,
 		ibcexported.ModuleName,
 
@@ -461,10 +489,7 @@ func New(
 	app.SetEndBlocker(app.EndBlocker)
 	app.setAnteHandler(app.txConfig, maxGasWanted)
 
-	err = app.configureEVMMempool(appOpts, logger)
-	if err != nil {
-		panic(err)
-	}
+	app.configureEVMMempool(appOpts, logger)
 
 	// In v0.46, the SDK introduces _postHandlers_. PostHandlers are like
 	// antehandlers, but are run _after_ the `runMsgs` execution. They are also

evmd/app/precompiles.go

@@ -2,6 +2,8 @@ package app
 
 import (
 	"fmt"
+	distrkeeper "github.com/cosmos/cosmos-sdk/x/distribution/keeper"
+	distributionprecompile "github.com/cosmos/evm/precompiles/distribution"
 	"maps"
 
 	evmibcutils "github.com/cosmos/evm/ibc"
@@ -35,6 +37,7 @@ const (
 // NOTE: this should only be used during initialization of the Keeper.
 func StaticPrecompiles(
 	stakingKeeper stakingkeeper.Keeper,
+	distributionKeeper distrkeeper.Keeper,
 	bankKeeper cmn.BankKeeper,
 	govKeeper govkeeper.Keeper,
 	clientKeeper evmibcutils.ClientKeeper,
@@ -66,6 +69,16 @@ func StaticPrecompiles(
 	)
 	precompiles[stakingPrecompile.Address()] = stakingPrecompile
 
+	distributionPrecompile := distributionprecompile.NewPrecompile(
+		distributionKeeper,
+		distrkeeper.NewMsgServerImpl(distributionKeeper),
+		distrkeeper.NewQuerier(distributionKeeper),
+		stakingKeeper,
+		bankKeeper,
+		addrCodec,
+	)
+	precompiles[distributionPrecompile.Address()] = distributionPrecompile
+
 	govPrecompile := govprecompile.NewPrecompile(
 		govkeeper.NewMsgServerImpl(&govKeeper),
 		govkeeper.NewQueryServer(&govKeeper),

evmd/e2e/README.md

@@ -0,0 +1,11 @@
+`TODO: Add more information here`
+
+## Keep containers running after tests
+
+If you'd like to keep the docker containers running after the tests complete use the `KEEP_CONTAINERS` environment variable:
+
+```
+KEEP_CONTAINERS=true make test-e2e
+```
+
+Note that you should manually delete the created containers and networks before running the tests again.

evmd/e2e/contracts/Counter.abi

@@ -0,0 +1 @@
+[{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newValue","type":"uint256"},{"indexed":true,"internalType":"address","name":"caller","type":"address"}],"name":"ValueChanged","type":"event"},{"inputs":[{"internalType":"uint256","name":"newValue","type":"uint256"}],"name":"set","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"value","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

evmd/e2e/contracts/Counter.bin

@@ -0,0 +1 @@
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

evmd/e2e/contracts/Counter.sol

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+contract Counter {
+    event ValueChanged(uint256 newValue, address indexed caller);
+
+    uint256 public value;
+
+    function set(uint256 newValue) external {
+        value = newValue;
+        emit ValueChanged(newValue, msg.sender);
+    }
+}

evmd/e2e/contracts/Reverter.abi

@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"string","name":"reason","type":"string"}],"name":"revertWithReason","outputs":[],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"uint256","name":"v","type":"uint256"},{"internalType":"uint256","name":"iters","type":"uint256"}],"name":"setThenBurnGas","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"x","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]