# Package org.apache.groovy.contracts.ast

package org.apache.groovy.contracts.ast

- Related Packages
  Package
  Description
  org.apache.groovy.contracts
  org.apache.groovy.contracts.ast.visitor
  org.apache.groovy.contracts.domain
  org.apache.groovy.contracts.generation
  org.apache.groovy.contracts.util
- Classes
  Class
  Description
  BaseASTTransformation
  Base AST transformation encapsulating all common helper methods and implementing `ASTTransformation`.
  ClosureExpressionEvaluationASTTransformation
  Evaluates `ClosureExpression` instances in annotation parameters and generates special contract closure classes from them.
  GContractsASTTransformation
  Custom AST transformation that removes closure annotations of `Invariant`, `Requires` and `Ensures` and adds Java assertions executing the closure-code.