org.codehaus.groovy.transform
Class ASTTransformationVisitor

java.lang.Object
  org.codehaus.groovy.ast.CodeVisitorSupport
      org.codehaus.groovy.ast.ClassCodeVisitorSupport
          org.codehaus.groovy.transform.ASTTransformationVisitor

All Implemented Interfaces:

GroovyClassVisitor, GroovyCodeVisitor

public class ASTTransformationVisitor
extends ClassCodeVisitorSupport

This class handles the invocation of the ASTAnnotationTransformation when it is encountered by a tree walk. One instance of each exists for each phase of the compilation it applies to. Before invocation the

ASTTransformationCollectorCodeVisitor will add a list of annotations that this visitor should be concerned about. All other annotations are ignored, whether or not they are GroovyASTTransformation annotated or not.

A Two-pass method is used. First all candidate annotations are added to a list then the transformations are called on those collected annotations. This is done to avoid concurrent modification exceptions during the AST tree walk and allows the transformations to alter any portion of the AST tree. Hence annotations that are added in this phase will not be processed as transformations. They will only be handled in later phases (and then only if the type was in the AST prior to any AST transformations being run against it).

Author:

Danno Ferrin (shemnon)

Method Summary

static void	addGlobalTransforms(CompilationUnit compilationUnit)
static void	addGlobalTransformsAfterGrab()
static void	addPhaseOperations(CompilationUnit compilationUnit)
protected SourceUnit	getSourceUnit()
void	visitAnnotations(AnnotatedNode node) Adds the annotation to the internal target list if a match is found.
void	visitClass(ClassNode classNode) Main loop entry.

Methods inherited from class org.codehaus.groovy.ast.ClassCodeVisitorSupport

addError, visitAssertStatement, visitBlockStatement, visitBreakStatement, visitCaseStatement, visitCatchStatement, visitClassCodeContainer, visitConstructor, visitConstructorOrMethod, visitContinueStatement, visitDoWhileLoop, visitExpressionStatement, visitField, visitForLoop, visitIfElse, visitImports, visitMethod, visitPackage, visitProperty, visitReturnStatement, visitStatement, visitSwitch, visitSynchronizedStatement, visitThrowStatement, visitTryCatchFinally, visitVariableExpression, visitWhileLoop

Methods inherited from class org.codehaus.groovy.ast.CodeVisitorSupport

visitArgumentlistExpression, visitArrayExpression, visitAttributeExpression, visitBinaryExpression, visitBitwiseNegationExpression, visitBooleanExpression, visitBytecodeExpression, visitCastExpression, visitClassExpression, visitClosureExpression, visitClosureListExpression, visitConstantExpression, visitConstructorCallExpression, visitDeclarationExpression, visitEmptyStatement, visitFieldExpression, visitGStringExpression, visitListExpression, visitListOfExpressions, visitMapEntryExpression, visitMapExpression, visitMethodCallExpression, visitMethodPointerExpression, visitNotExpression, visitPostfixExpression, visitPrefixExpression, visitPropertyExpression, visitRangeExpression, visitRegexExpression, visitShortTernaryExpression, visitSpreadExpression, visitSpreadMapExpression, visitStaticMethodCallExpression, visitTernaryExpression, visitTupleExpression, visitUnaryMinusExpression, visitUnaryPlusExpression

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getSourceUnit

protected SourceUnit getSourceUnit()

Specified by:

getSourceUnit in class ClassCodeVisitorSupport

visitClass

public void visitClass(ClassNode classNode)

Main loop entry.

First, it delegates to the super visitClass so we can collect the relevant annotations in an AST tree walk.

Second, it calls the visit method on the transformation for each relevant annotation found.

Specified by:

visitClass in interface GroovyClassVisitor

Overrides:

visitClass in class ClassCodeVisitorSupport

Parameters:

classNode - the class to visit

visitAnnotations

public void visitAnnotations(AnnotatedNode node)

Adds the annotation to the internal target list if a match is found.

Overrides:

visitAnnotations in class ClassCodeVisitorSupport

Parameters:

node - the node to be processed

addPhaseOperations

public static void addPhaseOperations(CompilationUnit compilationUnit)

addGlobalTransformsAfterGrab

public static void addGlobalTransformsAfterGrab()

addGlobalTransforms

public static void addGlobalTransforms(CompilationUnit compilationUnit)