refactor: remove unused placeholder vars

changelog.md

@@ -51,6 +51,7 @@
 - [#4384](https://github.com/ignite/cli/pull/4384) Compare genesis params into chain genesis tests
 - [#4463](https://github.com/ignite/cli/pull/4463) Run `chain simulation` with any simulation test case
 - [#4533](https://github.com/ignite/cli/pull/4533) Promote GitHub codespace instead of Gitpod
+- [#4549](https://github.com/ignite/cli/pull/4549) Remove unused placeholder vars
 
 ### Fixes
 

ignite/templates/ibc/files/packet/messages/x/{{moduleName}}/client/cli/tx_{{packetName}}.go.plush

@@ -1,7 +1,6 @@
 package cli
 
 import (
-    "strconv"
     <%= for (goImport) in mergeGoImports(fields) { %>
     <%= goImport.Alias %> "<%= goImport.Name %>"<% } %>
 	"github.com/spf13/cobra"
@@ -15,8 +14,6 @@ import (
 	"<%= ModulePath %>/x/<%= moduleName %>/types"
 )
 
-var _ = strconv.Itoa(0)
-
 // CmdSend<%= packetName.UpperCamel %>() returns the <%= packetName.UpperCamel %> send packet command.
 // This command does not use AutoCLI because it gives a better UX to do not.
 func CmdSend<%= packetName.UpperCamel %>() *cobra.Command {

ignite/templates/message/message.go

@@ -252,6 +252,7 @@ func moduleSimulationModify(opts *Options) genny.RunFn {
 
 		content, err := typed.ModuleSimulationMsgModify(
 			f.String(),
+			opts.ModulePath,
 			opts.ModuleName,
 			opts.MsgName,
 			opts.MsgSigner,

ignite/templates/module/create/files/base/x/{{moduleName}}/module/simulation.go.plush

@@ -1,28 +1,14 @@
 package <%= moduleName %>
 
 import (
-	"math/rand"
-
 	"cosmossdk.io/core/address"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
 	simtypes "github.com/cosmos/cosmos-sdk/types/simulation"
-	"github.com/cosmos/cosmos-sdk/x/simulation"
 
-	"<%= modulePath %>/testutil/sample"
-	<%= moduleName %>simulation "<%= modulePath %>/x/<%= moduleName %>/simulation"
 	"<%= modulePath %>/x/<%= moduleName %>/types"
 )
 
-// avoid unused import issue
-var (
-	_ = rand.Rand{}
-	_ = sample.AccAddress
-	_ = sdk.AccAddress{}
-	_ = simulation.MsgEntryKind
-	_ = <%= moduleName %>simulation.PlaceHolder
-)
-
 // GenerateGenesisState creates a randomized GenState of the module.
 func (AppModule) GenerateGenesisState(simState *module.SimulationState) {
 	accs := make([]string, len(simState.Accounts))

ignite/templates/typed/list/simulation.go

@@ -48,6 +48,7 @@ func moduleSimulationModify(opts *typed.Options) genny.RunFn {
 
 		content, err = typed.ModuleSimulationMsgModify(
 			content,
+			opts.ModulePath,
 			opts.ModuleName,
 			opts.TypeName,
 			opts.MsgSigner,

ignite/templates/typed/map/files/simapp/x/{{moduleName}}/simulation/{{typeName}}.go.plush

@@ -2,7 +2,6 @@ package simulation
 
 import (
 	"math/rand"
-	"strconv"
 
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -14,9 +13,6 @@ import (
 	"<%= ModulePath %>/x/<%= ModuleName %>/types"
 )
 
-// Prevent strconv unused error
-var _ = strconv.IntSize
-
 func SimulateMsgCreate<%= TypeName.UpperCamel %>(
 	ak types.AuthKeeper,
 	bk types.BankKeeper,

ignite/templates/typed/map/files/tests/component/x/{{moduleName}}/keeper/query_{{typeName}}_test.go.plush

@@ -1,7 +1,6 @@
 package keeper_test
 
 import (
-	"strconv"
 	"testing"
 
 	"github.com/cosmos/cosmos-sdk/types/query"
@@ -14,14 +13,10 @@ import (
 	"<%= ModulePath %>/x/<%= ModuleName %>/keeper"
 )
 
-// Prevent strconv unused error
-var _ = strconv.IntSize
-
 func createN<%= TypeName.UpperCamel %>(keeper keeper.Keeper, ctx context.Context, n int) []types.<%= TypeName.UpperCamel %> {
 	items := make([]types.<%= TypeName.UpperCamel %>, n)
 	for i := range items {
 		items[i].<%= Index.Name.UpperCamel %> = <%= Index.ValueLoop() %>
-
 		_ = keeper.<%= TypeName.UpperCamel %>.Set(ctx, items[i].<%= Index.Name.UpperCamel %>, items[i])
 	}
 	return items

ignite/templates/typed/map/files/tests/messages/x/{{moduleName}}/keeper/msg_server_{{typeName}}_test.go.plush

@@ -1,7 +1,6 @@
 package keeper_test
 
 import (
-    "strconv"
 	"testing"
 
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
@@ -11,9 +10,6 @@ import (
     "<%= ModulePath %>/x/<%= ModuleName %>/types"
 )
 
-// Prevent strconv unused error
-var _ = strconv.IntSize
-
 func Test<%= TypeName.UpperCamel %>MsgServerCreate(t *testing.T) {
 	f := initFixture(t)
 	srv := keeper.NewMsgServerImpl(f.keeper)

ignite/templates/typed/map/simulation.go

@@ -47,6 +47,7 @@ func moduleSimulationModify(opts *typed.Options) genny.RunFn {
 
 		content, err = typed.ModuleSimulationMsgModify(
 			content,
+			opts.ModulePath,
 			opts.ModuleName,
 			opts.TypeName,
 			opts.MsgSigner,

ignite/templates/typed/simulation.go

@@ -9,7 +9,8 @@ import (
 )
 
 func ModuleSimulationMsgModify(
-	content string,
+	content,
+	modulePath,
 	moduleName string,
 	typeName, msgSigner multiformatname.Name,
 	msgs ...string,
@@ -18,7 +19,19 @@ func ModuleSimulationMsgModify(
 		msgs = append(msgs, "")
 	}
 
-	var err error
+	// Import
+	content, err := xast.AppendImports(
+		content,
+		xast.WithLastNamedImport(
+			fmt.Sprintf("%[1]vsimulation", moduleName),
+			fmt.Sprintf("%[1]v/x/%[2]v/simulation", modulePath, moduleName),
+		),
+		xast.WithImport("math/rand", 0),
+	)
+	if err != nil {
+		return "", err
+	}
+
 	for _, msg := range msgs {
 		// simulation operations
 		replacementOp := fmt.Sprintf(`

ignite/templates/typed/singleton/simulation.go

@@ -18,6 +18,7 @@ func moduleSimulationModify(opts *typed.Options) genny.RunFn {
 
 		content, err := typed.ModuleSimulationMsgModify(
 			f.String(),
+			opts.ModulePath,
 			opts.ModuleName,
 			opts.TypeName,
 			opts.MsgSigner,