[#199] sdk/eacl: Correct linter's remarks

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/acl/eacl/enums.go

@@ -5,60 +5,100 @@ import (
 )
 
 // Action taken if EACL record matched request.
+// Action is compatible with v2 acl.Action enum.
 type Action uint32
 
 const (
+	// ActionUnknown is an Action value used to mark action as undefined.
 	ActionUnknown Action = iota
+
+	// ActionAllow is an Action value that allows access to the operation from context.
 	ActionAllow
+
+	// ActionDeny is an Action value that denies access to the operation from context.
 	ActionDeny
 )
 
 // Operation is a object service method to match request.
+// Operation is compatible with v2 acl.Operation enum.
 type Operation uint32
 
 const (
+	// OperationUnknown is an Operation value used to mark operation as undefined.
 	OperationUnknown Operation = iota
+
+	// OperationGet is an object get Operation.
 	OperationGet
+
+	// OperationHead is an Operation of getting the object header.
 	OperationHead
+
+	// OperationPut is an object put Operation.
 	OperationPut
+
+	// OperationDelete is an object delete Operation.
 	OperationDelete
+
+	// OperationSearch is an object search Operation.
 	OperationSearch
+
+	// OperationRange is an object payload range retrieval Operation.
 	OperationRange
+
+	// OperationRangeHash is an object payload range hashing Operation.
 	OperationRangeHash
 )
 
 // Role is a group of request senders to match request.
+// Role is compatible with v2 acl.Role enum.
 type Role uint32
 
 const (
+	// RoleUnknown is a Role value used to mark role as undefined.
 	RoleUnknown Role = iota
+
 	// RoleUser is a group of senders that contains only key of container owner.
 	RoleUser
+
 	// RoleSystem is a group of senders that contains keys of container nodes and
 	// inner ring nodes.
 	RoleSystem
+
 	// RoleOthers is a group of senders that contains none of above keys.
 	RoleOthers
 )
 
 // Match is binary operation on filer name and value to check if request is matched.
+// Match is compatible with v2 acl.MatchType enum.
 type Match uint32
 
 const (
+	// MatchUnknown is a Match value used to mark matcher as undefined.
 	MatchUnknown Match = iota
+
+	// MatchStringEqual is a Match of string equality.
 	MatchStringEqual
+
+	// MatchStringNotEqual is a Match of string inequality.
 	MatchStringNotEqual
 )
 
 // FilterHeaderType indicates source of headers to make matches.
+// FilterHeaderType is compatible with v2 acl.HeaderType enum.
 type FilterHeaderType uint32
 
 const (
+	// HeaderTypeUnknown is a FilterHeaderType value used to mark header type as undefined.
 	HeaderTypeUnknown FilterHeaderType = iota
+
+	// HeaderFromRequest is a FilterHeaderType for request X-Header.
 	HeaderFromRequest
+
+	// HeaderFromObject is a FilterHeaderType for object header.
 	HeaderFromObject
 )
 
+// ToV2 converts Action to v2 Action enum value.
 func (a Action) ToV2() v2acl.Action {
 	switch a {
 	case ActionAllow:
@@ -70,6 +110,7 @@ func (a Action) ToV2() v2acl.Action {
 	}
 }
 
+// ActionFromV2 converts v2 Action enum value to Action.
 func ActionFromV2(action v2acl.Action) (a Action) {
 	switch action {
 	case v2acl.ActionAllow:
@@ -83,6 +124,7 @@ func ActionFromV2(action v2acl.Action) (a Action) {
 	return a
 }
 
+// ToV2 converts Operation to v2 Operation enum value.
 func (o Operation) ToV2() v2acl.Operation {
 	switch o {
 	case OperationGet:
@@ -104,6 +146,7 @@ func (o Operation) ToV2() v2acl.Operation {
 	}
 }
 
+// OperationFromV2 converts v2 Operation enum value to Operation.
 func OperationFromV2(operation v2acl.Operation) (o Operation) {
 	switch operation {
 	case v2acl.OperationGet:
@@ -127,6 +170,7 @@ func OperationFromV2(operation v2acl.Operation) (o Operation) {
 	return o
 }
 
+// ToV2 converts Role to v2 Role enum value.
 func (r Role) ToV2() v2acl.Role {
 	switch r {
 	case RoleUser:
@@ -140,6 +184,7 @@ func (r Role) ToV2() v2acl.Role {
 	}
 }
 
+// RoleFromV2 converts v2 Role enum value to Role.
 func RoleFromV2(role v2acl.Role) (r Role) {
 	switch role {
 	case v2acl.RoleUser:
@@ -155,6 +200,7 @@ func RoleFromV2(role v2acl.Role) (r Role) {
 	return r
 }
 
+// ToV2 converts Match to v2 MatchType enum value.
 func (m Match) ToV2() v2acl.MatchType {
 	switch m {
 	case MatchStringEqual:
@@ -166,6 +212,7 @@ func (m Match) ToV2() v2acl.MatchType {
 	}
 }
 
+// MatchFromV2 converts v2 MatchType enum value to Match.
 func MatchFromV2(match v2acl.MatchType) (m Match) {
 	switch match {
 	case v2acl.MatchTypeStringEqual:
@@ -179,6 +226,7 @@ func MatchFromV2(match v2acl.MatchType) (m Match) {
 	return m
 }
 
+// ToV2 converts FilterHeaderType to v2 HeaderType enum value.
 func (h FilterHeaderType) ToV2() v2acl.HeaderType {
 	switch h {
 	case HeaderFromRequest:
@@ -190,6 +238,7 @@ func (h FilterHeaderType) ToV2() v2acl.HeaderType {
 	}
 }
 
+// FilterHeaderTypeFromV2 converts v2 HeaderType enum value to FilterHeaderType.
 func FilterHeaderTypeFromV2(header v2acl.HeaderType) (h FilterHeaderType) {
 	switch header {
 	case v2acl.HeaderTypeRequest: