[#48] client: Remove `ctx == nil` checks

Much less useful after we made context to be passed explicitly.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

client/accounting.go

@@ -52,10 +52,7 @@ func (x ResBalanceGet) Amount() accounting.Decimal {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) BalanceGet(ctx context.Context, prm PrmBalanceGet) (*ResBalanceGet, error) {
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.accountSet:
+	if !prm.accountSet {
 		return nil, errorAccountNotSet
 	}
 

client/common.go

@@ -73,7 +73,6 @@ func writeXHeadersToMeta(xHeaders []string, h *v2session.RequestMetaHeader) {
 
 // error messages.
 var (
-	errorMissingContext       = errors.New("missing context")
 	errorMissingContainer     = errors.New("missing container")
 	errorMissingObject        = errors.New("missing object")
 	errorAccountNotSet        = errors.New("account not set")

client/container_delete.go

@@ -72,10 +72,7 @@ type ResContainerDelete struct {
 //   - global (see Client docs).
 func (c *Client) ContainerDelete(ctx context.Context, prm PrmContainerDelete) (*ResContainerDelete, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.idSet:
+	if !prm.idSet {
 		return nil, errorMissingContainer
 	}
 

client/container_eacl.go

@@ -55,10 +55,7 @@ func (x ResContainerEACL) Table() eacl.Table {
 //   - *apistatus.EACLNotFound.
 func (c *Client) ContainerEACL(ctx context.Context, prm PrmContainerEACL) (*ResContainerEACL, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.idSet:
+	if !prm.idSet {
 		return nil, errorMissingContainer
 	}
 

client/container_get.go

@@ -57,10 +57,7 @@ func (x ResContainerGet) Container() container.Container {
 //   - global (see Client docs);
 //   - *apistatus.ContainerNotFound.
 func (c *Client) ContainerGet(ctx context.Context, prm PrmContainerGet) (*ResContainerGet, error) {
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.idSet:
+	if !prm.idSet {
 		return nil, errorMissingContainer
 	}
 

client/container_list.go

@@ -56,10 +56,7 @@ func (x ResContainerList) Containers() []cid.ID {
 //   - global (see Client docs).
 func (c *Client) ContainerList(ctx context.Context, prm PrmContainerList) (*ResContainerList, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.ownerSet:
+	if !prm.ownerSet {
 		return nil, errorAccountNotSet
 	}
 

client/container_put.go

@@ -82,10 +82,7 @@ func (x ResContainerPut) ID() cid.ID {
 // nolint: funlen
 func (c *Client) ContainerPut(ctx context.Context, prm PrmContainerPut) (*ResContainerPut, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.cnrSet:
+	if !prm.cnrSet {
 		return nil, errorMissingContainer
 	}
 

client/container_set_eacl.go

@@ -74,10 +74,7 @@ type ResContainerSetEACL struct {
 //   - global (see Client docs).
 func (c *Client) ContainerSetEACL(ctx context.Context, prm PrmContainerSetEACL) (*ResContainerSetEACL, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.tableSet:
+	if !prm.tableSet {
 		return nil, errorEACLTableNotSet
 	}
 

client/container_space.go

@@ -49,10 +49,7 @@ type ResAnnounceSpace struct {
 //   - global (see Client docs).
 func (c *Client) ContainerAnnounceUsedSpace(ctx context.Context, prm PrmAnnounceSpace) (*ResAnnounceSpace, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case len(prm.announcements) == 0:
+	if len(prm.announcements) == 0 {
 		return nil, errorMissingAnnouncements
 	}
 

client/netmap.go

@@ -56,11 +56,6 @@ func (x ResEndpointInfo) NodeInfo() netmap.NodeInfo {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) EndpointInfo(ctx context.Context, prm PrmEndpointInfo) (*ResEndpointInfo, error) {
-	// check context
-	if ctx == nil {
-		return nil, errorMissingContext
-	}
-
 	// form request
 	var req v2netmap.LocalNodeInfoRequest
 
@@ -153,11 +148,6 @@ func (x ResNetworkInfo) Info() netmap.NetworkInfo {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) NetworkInfo(ctx context.Context, prm PrmNetworkInfo) (*ResNetworkInfo, error) {
-	// check context
-	if ctx == nil {
-		return nil, errorMissingContext
-	}
-
 	// form request
 	var req v2netmap.NetworkInfoRequest
 

client/object_delete.go

@@ -125,8 +125,6 @@ func (x ResObjectDelete) Tombstone() oid.ID {
 //   - *apistatus.SessionTokenExpired.
 func (c *Client) ObjectDelete(ctx context.Context, prm PrmObjectDelete) (*ResObjectDelete, error) {
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.addr.GetContainerID() == nil:
 		return nil, errorMissingContainer
 	case prm.addr.GetObjectID() == nil:

client/object_get.go

@@ -301,8 +301,6 @@ func (x *ObjectReader) Read(p []byte) (int, error) {
 func (c *Client) ObjectGetInit(ctx context.Context, prm PrmObjectGet) (*ObjectReader, error) {
 	// check parameters
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.addr.GetContainerID() == nil:
 		return nil, errorMissingContainer
 	case prm.addr.GetObjectID() == nil:
@@ -416,8 +414,6 @@ func (x *ResObjectHead) ReadHeader(dst *object.Object) bool {
 //   - *apistatus.SessionTokenExpired.
 func (c *Client) ObjectHead(ctx context.Context, prm PrmObjectHead) (*ResObjectHead, error) {
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.addr.GetContainerID() == nil:
 		return nil, errorMissingContainer
 	case prm.addr.GetObjectID() == nil:
@@ -668,8 +664,6 @@ func (x *ObjectRangeReader) Read(p []byte) (int, error) {
 func (c *Client) ObjectRangeInit(ctx context.Context, prm PrmObjectRange) (*ObjectRangeReader, error) {
 	// check parameters
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.addr.GetContainerID() == nil:
 		return nil, errorMissingContainer
 	case prm.addr.GetObjectID() == nil:

client/object_hash.go

@@ -166,8 +166,6 @@ func (x ResObjectHash) Checksums() [][]byte {
 //   - *apistatus.SessionTokenExpired.
 func (c *Client) ObjectHash(ctx context.Context, prm PrmObjectHash) (*ResObjectHash, error) {
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.addr.GetContainerID() == nil:
 		return nil, errorMissingContainer
 	case prm.addr.GetObjectID() == nil:

client/object_put.go

@@ -245,11 +245,6 @@ func (x *ObjectWriter) Close() (*ResObjectPut, error) {
 // Returns an error if parameters are set incorrectly.
 // Context is required and must not be nil. It is used for network communication.
 func (c *Client) ObjectPutInit(ctx context.Context, prm PrmObjectPutInit) (*ObjectWriter, error) {
-	// check parameters
-	if ctx == nil {
-		return nil, errorMissingContext
-	}
-
 	var w ObjectWriter
 
 	ctx, cancel := context.WithCancel(ctx)

client/object_search.go

@@ -222,10 +222,7 @@ func (x *ObjectListReader) Close() (*ResObjectSearch, error) {
 // Context is required and must not be nil. It is used for network communication.
 func (c *Client) ObjectSearchInit(ctx context.Context, prm PrmObjectSearch) (*ObjectListReader, error) {
 	// check parameters
-	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
-	case !prm.cnrSet:
+	if !prm.cnrSet {
 		return nil, errorMissingContainer
 	}
 

client/reputation.go

@@ -53,8 +53,6 @@ type ResAnnounceLocalTrust struct {
 func (c *Client) AnnounceLocalTrust(ctx context.Context, prm PrmAnnounceLocalTrust) (*ResAnnounceLocalTrust, error) {
 	// check parameters
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.epoch == 0:
 		return nil, errorZeroEpoch
 	case len(prm.trusts) == 0:
@@ -154,8 +152,6 @@ type ResAnnounceIntermediateTrust struct {
 func (c *Client) AnnounceIntermediateTrust(ctx context.Context, prm PrmAnnounceIntermediateTrust) (*ResAnnounceIntermediateTrust, error) {
 	// check parameters
 	switch {
-	case ctx == nil:
-		return nil, errorMissingContext
 	case prm.epoch == 0:
 		return nil, errorZeroEpoch
 	case !prm.trustSet:

client/session.go

@@ -78,11 +78,6 @@ func (x ResSessionCreate) PublicKey() []byte {
 // Return statuses:
 //   - global (see Client docs).
 func (c *Client) SessionCreate(ctx context.Context, prm PrmSessionCreate) (*ResSessionCreate, error) {
-	// check context
-	if ctx == nil {
-		return nil, errorMissingContext
-	}
-
 	ownerKey := c.prm.key.PublicKey
 	if prm.keySet {
 		ownerKey = prm.key.PublicKey