# {AST} is a library for manipulating abstract syntax trees.
#
# It embraces immutability; each AST node is inherently frozen at
# creation, and updating a child node requires recreating that node
# and its every parent, recursively.
# This is a design choice. It does create some pressure on
# garbage collector, but completely eliminates all concurrency
# and aliasing problems.
#
# See also {AST::Node}, {AST::Processor::Mixin} and {AST::Sexp} for
# additional recommendations and design patterns.
#
module AST
  require 'ast/node'
  require 'ast/processor'
  require 'ast/sexp'
end