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 and Description
    `ClosureSignatureConflictResolver()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and 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.