0.6.0

Added

• CSS-like AST selectors — build relationship-aware selectors with ExAST.Selector

  import Kernel, except: [not: 1]
  import ExAST.Selector
  
  pattern("defmodule _ do ... end")
  |> descendant("def _ do ... end")
  |> child("IO.inspect(_)")

• Selector predicates — filter selected nodes with where/2 and Ecto-style not/1
  • parent/1 / parent/2
  • ancestor/1 / ancestor/2
  • has_child/1 / has_child/2
  • has_descendant/1 / has_descendant/2
  • has/1 / has/2
• CLI relationship filters for mix ex_ast.search and mix ex_ast.replace
  • --parent, --ancestor, --has-child, --has-descendant, --has
  • matching --not-* flags