Table of Contents

Guide

1. Introduction
2. Usage of basic components

Component documentation

• Walking the AST
  • Node visitors
  • Modifying the AST from a visitor
  • Short-circuiting traversals
  • Interleaved visitors
  • Simple node finding API
  • Parent and sibling references
• Name resolution
  • Name resolver options
  • Name resolution context
• Pretty printing
  • Converting AST back to PHP code
  • Customizing formatting
  • Formatting-preserving code transformations
• AST builders
  • Fluent builders for AST nodes
• Lexer
  • Emulation
  • Tokens, positions and attributes
• Error handling
  • Column information for errors
  • Error recovery (parsing of syntactically incorrect code)
• Constant expression evaluation
  • Evaluating constant/property/etc initializers
  • Handling errors and unsupported expressions
• JSON representation
  • JSON encoding and decoding of ASTs
• Performance
  • Disabling Xdebug
  • Reusing objects
  • Garbage collection impact
• Frequently asked questions
  • Parent and sibling references