Use node-query and node-mutation via syntax-tree

syntax-tree-query-mutation-ruby.rb

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  gem 'syntax_tree'
  gem 'syntax_tree_ext'
  gem 'node_query'
  gem 'node_mutation'
end

NodeQuery.configure(adapter: NodeQuery::SyntaxTreeAdapter.new)
NodeMutation.configure(adapter: NodeMutation::SyntaxTreeAdapter.new)

source = "foo\nputs foo\n"
node = SyntaxTree::Parser.new(source).parse.statements
query = NodeQuery.new('.Command[message=puts]')
mutation = NodeMutation.new(source)
query.query_nodes(node).each do |matching_node|
  mutation.remove(matching_node)
end
result = mutation.process
puts result.new_source # foo\n