[ruby/prism] Node#script_lines and supporting infra

https://github.com/ruby/prism/commit/cb4a8ab772

lib/prism/parse_result.rb

@@ -27,6 +27,11 @@ module Prism
       source.encoding
     end
 
+    # Returns the lines of the source code as an array of strings.
+    def lines
+      source.lines
+    end
+
     # Perform a byteslice on the source code using the given byte offset and
     # byte length.
     def slice(byte_offset, length)
@@ -177,6 +182,11 @@ module Prism
       "#<Prism::Location @start_offset=#{@start_offset} @length=#{@length} start_line=#{start_line}>"
     end
 
+    # Returns all of the lines of the source code associated with this location.
+    def source_lines
+      source.lines
+    end
+
     # The source code that this location represents.
     def slice
       source.slice(start_offset, length)

prism/templates/lib/prism/node.rb.erb

@@ -40,6 +40,15 @@ module Prism
       end
     end
 
+    # Returns all of the lines of the source code associated with this node.
+    def source_lines
+      location.source_lines
+    end
+
+    # An alias for source_lines, used to mimic the API from
+    # RubyVM::AbstractSyntaxTree to make it easier to migrate.
+    alias script_lines source_lines
+
     # Slice the location of the node from the source.
     def slice
       location.slice