chore: don't initialise zero-valued structs

meter/_blueprint.go

@@ -20,10 +20,10 @@ func init() {
 
 // NewBlueprintFromConfig creates a blueprint meter from generic config
 func NewBlueprintFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI   string
 		Cache time.Duration
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/bosch_bpts5_hybrid.go

@@ -50,11 +50,11 @@ func init() {
 
 // NewBoschBpts5HybridFromConfig creates a Bosch BPT-S 5 Hybrid Meter from generic config
 func NewBoschBpts5HybridFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI   string
 		Usage string
 		Cache time.Duration
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/fritzdect/fritzdect.go

@@ -143,11 +143,11 @@ func (c *Connection) getSessionID() error {
 		return err
 	}
 
-	v := struct {
+	var v struct {
 		SID       string
 		Challenge string
 		BlockTime string
-	}{}
+	}
 
 	if err = xml.Unmarshal(body, &v); err == nil && v.SID == "0000000000000000" {
 		var challresp string

meter/homematic.go

@@ -18,7 +18,7 @@ func init() {
 
 // NewCCUFromConfig creates a Homematic meter from generic config
 func NewCCUFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI           string
 		Device        string
 		MeterChannel  string
@@ -26,7 +26,7 @@ func NewCCUFromConfig(other map[string]interface{}) (api.Meter, error) {
 		User          string
 		Password      string
 		Usage         string
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/meter.go

@@ -17,12 +17,12 @@ func init() {
 
 // NewConfigurableFromConfig creates api.Meter from config
 func NewConfigurableFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		Power    provider.Config
 		Energy   *provider.Config  // optional
 		SoC      *provider.Config  // optional
 		Currents []provider.Config // optional
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/powerwall.go

@@ -28,9 +28,9 @@ func init() {
 
 // NewPowerWallFromConfig creates a PowerWall Powerwall Meter from generic config
 func NewPowerWallFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI, Usage, User, Password string
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/shelly.go

@@ -13,12 +13,12 @@ func init() {
 
 // NewShellyFromConfig creates a Shelly charger from generic config
 func NewShellyFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI      string
 		User     string
 		Password string
 		Channel  int
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/tapo.go

@@ -13,11 +13,11 @@ func init() {
 
 // NewTapoFromConfig creates a tapo meter from generic config
 func NewTapoFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI      string
 		User     string
 		Password string
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/tasmota.go

@@ -19,12 +19,12 @@ func init() {
 
 // NewTasmotaFromConfig creates a Tasmota meter from generic config
 func NewTasmotaFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI      string
 		User     string
 		Password string
 		Usage    string
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/template.go

@@ -12,10 +12,10 @@ func init() {
 }
 
 func NewMeterFromTemplateConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		Template string
 		Other    map[string]interface{} `mapstructure:",remain"`
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err

meter/tplink.go

@@ -13,9 +13,9 @@ func init() {
 
 // NewTPLinkFromConfig creates a tapo meter from generic config
 func NewTPLinkFromConfig(other map[string]interface{}) (api.Meter, error) {
-	cc := struct {
+	var cc struct {
 		URI string
-	}{}
+	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err