Add visit_and to visitors

Author: st0012

lib/syntax_tree/field_visitor.rb

@@ -73,6 +73,15 @@ def visit_alias(node)
         end
       end
 
+      def visit_and(node)
+        node(node, "and") do
+          field("left", node.left)
+          text("operator", node.operator)
+          field("right", node.right)
+          comments(node)
+        end
+      end
+
       def visit_arg_block(node)
         node(node, "arg_block") do
           field("value", node.value) if node.value

lib/syntax_tree/mutation_visitor.rb

@@ -65,6 +65,11 @@ def visit_alias(node)
         node.copy(left: visit(node.left), right: visit(node.right))
       end
 
+      # Visit a AndNode node.
+      def visit_and(node)
+        node.copy(left: visit(node.left), right: visit(node.right))
+      end
+
       # Visit a ARef node.
       def visit_aref(node)
         node.copy(index: visit(node.index))

lib/syntax_tree/pretty_print_visitor.rb

@@ -9,6 +9,17 @@ def initialize(q)
       @q = q
     end
 
+    # This is here because we need to make sure the operator is cast to a string
+    # before we print it out.
+    def visit_and(node)
+      node(node, "and") do
+        field("left", node.left)
+        text("operator", node.operator.to_s)
+        field("right", node.right)
+        comments(node)
+      end
+    end
+
     # This is here because we need to make sure the operator is cast to a string
     # before we print it out.
     def visit_binary(node)

lib/syntax_tree/visitor.rb

@@ -14,6 +14,9 @@ class Visitor < BasicVisitor
     # Visit an AliasNode node.
     alias visit_alias visit_child_nodes
 
+    # Visit an AndNode node.
+    alias visit_and visit_child_nodes
+
     # Visit an ArgBlock node.
     alias visit_arg_block visit_child_nodes