Tweak comments in AST::Util

src/ameba/ast/util.cr

@@ -91,7 +91,7 @@ module Ameba::AST::Util
     node_lines.join('\n')
   end
 
-  # Returns true if node is a flow command, false - otherwise.
+  # Returns `true` if node is a flow command, `false` otherwise.
   # Node represents a flow command if it is a control expression,
   # or special call node that interrupts execution (i.e. raise, exit, abort).
   def flow_command?(node, in_loop)
@@ -107,7 +107,7 @@ module Ameba::AST::Util
     end
   end
 
-  # Returns true if node is a flow expression, false if not.
+  # Returns `true` if node is a flow expression, `false` if not.
   # Node represents a flow expression if it is full-filled by a flow command.
   #
   # For example, this node is a flow expression, because each branch contains
@@ -159,25 +159,25 @@ module Ameba::AST::Util
     nodes.all? { |exp| flow_expression? exp, in_loop }
   end
 
-  # Returns true if node represents `raise` method call.
+  # Returns `true` if node represents `raise` method call.
   def raise?(node)
     node.is_a?(Crystal::Call) &&
       node.name == "raise" && node.args.size == 1 && node.obj.nil?
   end
 
-  # Returns true if node represents `exit` method call.
+  # Returns `true` if node represents `exit` method call.
   def exit?(node)
     node.is_a?(Crystal::Call) &&
       node.name == "exit" && node.args.size <= 1 && node.obj.nil?
   end
 
-  # Returns true if node represents `abort` method call.
+  # Returns `true` if node represents `abort` method call.
   def abort?(node)
     node.is_a?(Crystal::Call) &&
       node.name == "abort" && node.args.size <= 2 && node.obj.nil?
   end
 
-  # Returns true if node represents a loop.
+  # Returns `true` if node represents a loop.
   def loop?(node)
     case node
     when Crystal::While, Crystal::Until