module Ast_iterator:sig..end
Ast_iterator.iterator enables AST inspection using open recursion. A
typical mapper would be based on Ast_iterator.default_iterator, a
trivial iterator, and will fall back on it for handling the syntax it does
not modify.
Warning: this module is unstable and part of compiler-libs.
type iterator = {}
A iterator record implements one "method" per syntactic category,
using an open recursion style: each method takes as its first
argument the iterator to be applied to children in the syntax
tree.
val default_iterator : iteratorA default iterator, which implements a "do not do anything" mapping.