Package groovy.transform.stc

Class ClosureSignatureConflictResolver

java.lang.Object

groovy.transform.stc.ClosureSignatureConflictResolver

Direct Known Subclasses:

PickFirstResolver

public class ClosureSignatureConflictResolver
extends Object

If multiple candidate signatures are found after applying type hints, a conflict resolver can attempt to resolve the ambiguity.

Since:

2.5.0

Constructor Summary

Constructors

Constructor	Description
ClosureSignatureConflictResolver()

Method Summary

Modifier and Type	Method	Description
List<ClassNode[]>	resolve(List<ClassNode[]> candidates, ClassNode receiver, Expression arguments, ClosureExpression closure, MethodNode methodNode, SourceUnit sourceUnit, CompilationUnit compilationUnit, String[] options)

Methods inherited from class java.lang.Object

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

Constructor Detail

ClosureSignatureConflictResolver

public ClosureSignatureConflictResolver()

Method Detail

resolve

public List<ClassNode[]> resolve(List<ClassNode[]> candidates,
                                 ClassNode receiver,
                                 Expression arguments,
                                 ClosureExpression closure,
                                 MethodNode methodNode,
                                 SourceUnit sourceUnit,
                                 CompilationUnit compilationUnit,
                                 String[] options)

Parameters:

candidates - the list of signatures as determined after applying type hints and performing initial inference calculations

receiver - the receiver the method is being called on

arguments - the arguments for the closure

closure - the closure expression under analysis

methodNode - the method for which a Closure parameter was annotated with ClosureParams

sourceUnit - the source unit of the file being compiled

compilationUnit - the compilation unit of the file being compiled

options - the options, corresponding to the ClosureParams.options() found on the annotation

Returns:

a non-null list of signatures, where a signature corresponds to an array of class nodes, each of them matching a parameter. A list with more than one element indicates that all ambiguities haven't yet been resolved.