Translate abstract signatures to RBS comments

Signed-off-by: Alexandre Terrasa <alexandre.terrasa@shopify.com>

Author: Morriar

lib/spoom/coverage/d3/base.rb

@@ -6,7 +6,6 @@ module Coverage
     module D3
       # @abstract
       class Base
-        extend T::Sig
         #: String
         attr_reader :id
 
@@ -41,7 +40,8 @@ def tooltip
           ""
         end
 
-        sig { abstract.returns(String) }
+        # @abstract
+        #: -> String
         def script; end
       end
     end

lib/spoom/coverage/d3/timeline.rb

@@ -117,7 +117,8 @@ def script
           HTML
         end
 
-        sig { abstract.returns(String) }
+        # @abstract
+        #: -> String
         def plot; end
 
         #: -> String

lib/spoom/coverage/report.rb

@@ -33,7 +33,6 @@ def get_binding # rubocop:disable Naming/AccessorMethodName
 
     # @abstract
     class Page < Template
-      extend T::Sig
       TEMPLATE = "#{Spoom::SPOOM_PATH}/templates/page.erb" #: String
 
       #: String
@@ -69,7 +68,8 @@ def body_html
         cards.map(&:html).join("\n")
       end
 
-      sig { abstract.returns(T::Array[Cards::Card]) }
+      # @abstract
+      #: -> Array[Cards::Card]
       def cards; end
 
       #: -> String
@@ -80,8 +80,6 @@ def footer_html
 
     module Cards
       class Card < Template
-        extend T::Sig
-
         TEMPLATE = "#{Spoom::SPOOM_PATH}/templates/card.erb" #: String
 
         #: String?
@@ -106,7 +104,8 @@ def html
           ERB.new(erb).result(get_binding)
         end
 
-        sig { abstract.returns(String) }
+        # @abstract
+        #: -> String
         def erb; end
       end
 

lib/spoom/sorbet/lsp/structures.rb

@@ -8,8 +8,8 @@ module Spoom
   module LSP
     # @interface
     module PrintableSymbol
-      extend T::Sig
-      sig { abstract.params(printer: SymbolPrinter).void }
+      # @abstract
+      #: (SymbolPrinter printer) -> void
       def accept_printer(printer); end
     end