| Interface | Description | 
|---|---|
| HasCleanup | 
 An interface for things that need to be cleaned up after
  operations complete. 
 | 
| ParserPlugin | 
 A simple extension point to allow us to switch between the classic Groovy parser and the new Antlr based parser 
 | 
| Class | Description | 
|---|---|
| ASTTransformationsContext | 
 Stores state information about global AST transformations applied to a compilation unit. 
 | 
| CompilationUnit | 
 The CompilationUnit collects all compilation data as it is generated by the compiler system. 
 | 
| CompilationUnit.ClassgenCallback | 
 A callback interface you can use to "accompany" the classgen()
 code as it traverses the ClassNode tree. 
 | 
| CompilationUnit.GroovyClassOperation | |
| CompilationUnit.PrimaryClassNodeOperation | 
 An callback interface for use in the applyToSourceUnits loop driver. 
 | 
| CompilationUnit.ProgressCallback | 
 A callback interface you can use to get a callback after every
 unit of the compile process. 
 | 
| CompilationUnit.SourceUnitOperation | 
 An callback interface for use in the applyToSourceUnits loop driver. 
 | 
| CompilerConfiguration | 
 Compilation control flags and coordination stuff. 
 | 
| ErrorCollector | 
 A base class for collecting messages and errors during processing. 
 | 
| GenericsVisitor | 
 class used to verify correct usage of generics in 
 class header (class and superclass declaration) 
 | 
| Janitor | 
 An agent that can be used to defer cleanup operations to 
  a later time. 
 | 
| LabelVerifier | 
 This class checks the handling of labels in the AST 
 | 
| OptimizerVisitor | 
 Visitor to produce several optimizations
  - to replace numbered constants with references to static fields 
 | 
| ParserPluginFactory | 
 A factory of parser plugin instances 
 | 
| Phases | 
 Compilation phase identifiers. 
 | 
| ProcessingUnit | 
 A base class for data structures that can collect messages and errors
 during processing. 
 | 
| ResolveVisitor | 
 Visitor to resolve Types and convert VariableExpression to
 ClassExpressions if needed. 
 | 
| SourceExtensionHandler | 
 Looks for source file extensions in META-INF/services/org.codehaus.groovy.source.Extensions 
 | 
| SourceUnit | 
 Provides an anchor for a single source unit (usually a script file)
 as it passes through the compiler system. 
 | 
| StaticImportVisitor | 
 Visitor to resolve constants and method calls from static Imports 
 | 
| StaticVerifier | 
 Verifier to check non-static access in static contexts 
 | 
| Enum | Description | 
|---|---|
| CompilePhase | 
 The phases of the GroovyCompiler. 
 | 
| Exception | Description | 
|---|---|
| CompilationFailedException | 
 Thrown when compilation fails from source errors. 
 | 
| ConfigurationException | 
 Thrown when configuration data is invalid. 
 | 
| MultipleCompilationErrorsException | 
Compiler control classes.