Package org.codehaus.groovy.transform

Class ParallelASTTransformation

java.lang.Object

org.codehaus.groovy.transform.ParallelASTTransformation

All Implemented Interfaces:

ASTTransformation

@Incubating
public class ParallelASTTransformation
extends Object
implements ASTTransformation

Local AST transform for Parallel: rewrites annotated for-in loops into collection.eachParallel { item -> body }.

The transform renames references to the loop variable in the body to a synthetic name (e.g. $parallel_item) to avoid scope conflicts with the for loop's own variable declaration, then re-resolves variable scopes to ensure the closure captures enclosing variables correctly.

Since:

6.0.0

Constructor Summary

Constructors

Constructor	Description
ParallelASTTransformation()

Method Summary

Modifier and Type	Method	Description
void	visit(ASTNode[] nodes, SourceUnit source)	The method is invoked when an AST Transformation is active.

Methods inherited from class java.lang.Object

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

Constructor Details

ParallelASTTransformation

public ParallelASTTransformation()

Method Details

visit

public void visit(ASTNode[] nodes,
 SourceUnit source)

Description copied from interface: ASTTransformation

The method is invoked when an AST Transformation is active. For local transformations, it is invoked once each time the local annotation is encountered. For global transformations, it is invoked once for every source unit, which is typically a source file.

Specified by:

visit in interface ASTTransformation

Parameters:

nodes - The ASTnodes when the call was triggered. Element 0 is the AnnotationNode that triggered this annotation to be activated. Element 1 is the AnnotatedNode decorated, such as a MethodNode or ClassNode. For global transformations it is usually safe to ignore this parameter.

source - The source unit being compiled. The source unit may contain several classes. For global transformations, information about the AST can be retrieved from this object.