Fixed UnreadContainer's comment

Prior to this commit, UnreadContainer's comments mentioned deprecated
SetUnread and such methods. It now reflects the new API.

cchat.go

@@ -782,10 +782,9 @@ type TypingIndicator interface {
 // button or a tree node) can implement if it's capable of indicating the read
 // and mentioned status for that channel.
 //
-// Server containers that implement this has to implement both SetUnread and
-// SetMentioned, and they should also represent those statuses differently. For
-// example, a mentioned channel could have a red outline, while an unread
-// channel could appear brighter.
+// Server containers that implement this has to represent unread and mentioned
+// differently. For example, a mentioned channel could have a red outline, while
+// an unread channel could appear brighter.
 //
 // Server containers are expected to represent this information in their parent
 // nodes as well. For example, if a server is unread, then its parent servers as

repository/main.go

@@ -1465,10 +1465,9 @@ var Main = Packages{
 				(such as a button or a tree node) can implement if it's capable
 				of indicating the read and mentioned status for that channel.
 
-				Server containers that implement this has to implement both
-				SetUnread and SetMentioned, and they should also represent those
-				statuses differently. For example, a mentioned channel could
-				have a red outline, while an unread channel could appear
+				Server containers that implement this has to represent unread
+				and mentioned differently. For example, a mentioned channel
+				could have a red outline, while an unread channel could appear
 				brighter.
 
 				Server containers are expected to represent this information in

utils/empty/empty.go

@@ -9,6 +9,33 @@ import (
 	"github.com/diamondburned/cchat/text"
 )
 
+// TextSegment provides no-op asserters for cchat.TextSegment.
+type TextSegment struct{}
+
+// AsColorer returns nil.
+func (TextSegment) AsColorer() text.Colorer { return nil }
+
+// AsLinker returns nil.
+func (TextSegment) AsLinker() text.Linker { return nil }
+
+// AsImager returns nil.
+func (TextSegment) AsImager() text.Imager { return nil }
+
+// AsAvatarer returns nil.
+func (TextSegment) AsAvatarer() text.Avatarer { return nil }
+
+// AsMentioner returns nil.
+func (TextSegment) AsMentioner() text.Mentioner { return nil }
+
+// AsAttributor returns nil.
+func (TextSegment) AsAttributor() text.Attributor { return nil }
+
+// AsCodeblocker returns nil.
+func (TextSegment) AsCodeblocker() text.Codeblocker { return nil }
+
+// AsQuoteblocker returns nil.
+func (TextSegment) AsQuoteblocker() text.Quoteblocker { return nil }
+
 // Namer provides no-op asserters for cchat.Namer.
 type Namer struct{}
 
@@ -113,30 +140,3 @@ func (SendableMessage) AsNoncer() cchat.Noncer { return nil }
 
 // AsAttachments returns nil.
 func (SendableMessage) AsAttachments() cchat.Attachments { return nil }
-
-// TextSegment provides no-op asserters for cchat.TextSegment.
-type TextSegment struct{}
-
-// AsColorer returns nil.
-func (TextSegment) AsColorer() text.Colorer { return nil }
-
-// AsLinker returns nil.
-func (TextSegment) AsLinker() text.Linker { return nil }
-
-// AsImager returns nil.
-func (TextSegment) AsImager() text.Imager { return nil }
-
-// AsAvatarer returns nil.
-func (TextSegment) AsAvatarer() text.Avatarer { return nil }
-
-// AsMentioner returns nil.
-func (TextSegment) AsMentioner() text.Mentioner { return nil }
-
-// AsAttributor returns nil.
-func (TextSegment) AsAttributor() text.Attributor { return nil }
-
-// AsCodeblocker returns nil.
-func (TextSegment) AsCodeblocker() text.Codeblocker { return nil }
-
-// AsQuoteblocker returns nil.
-func (TextSegment) AsQuoteblocker() text.Quoteblocker { return nil }