Example usage for org.eclipse.jdt.internal.compiler.apt.dispatch BaseProcessingEnvImpl getFactory

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.compiler.apt.dispatch BaseProcessingEnvImpl getFactory.

Prototype

public Factory getFactory() 

Source Link

Usage

From source file:org.mapstruct.ap.internal.util.workarounds.EclipseAsMemberOfWorkaround.java

License:Apache License

/**
 * Eclipse-specific implementation of {@link Types#asMemberOf(DeclaredType, Element)}.
 * <p>/*w  w w. j av a  2  s  . c om*/
 * Returns {@code null} if the implementation could not determine the result.
 */
static TypeMirror asMemberOf(ProcessingEnvironment environment, DeclaredType containing, Element element) {

    ElementImpl elementImpl = tryCast(element, ElementImpl.class);
    BaseProcessingEnvImpl env = tryCast(environment, BaseProcessingEnvImpl.class);

    if (elementImpl == null || env == null) {
        return null;
    }

    ReferenceBinding referenceBinding = (ReferenceBinding) ((ElementImpl) environment.getTypeUtils()
            .asElement(containing))._binding;

    MethodBinding methodBinding = (MethodBinding) elementImpl._binding;

    // matches in super-classes have priority
    MethodBinding inSuperclassHiearchy = findInSuperclassHierarchy(methodBinding, referenceBinding);

    if (inSuperclassHiearchy != null) {
        return env.getFactory().newTypeMirror(inSuperclassHiearchy);
    }

    // if nothing was found, traverse the interfaces and collect all candidate methods that match
    List<MethodBinding> candidatesFromInterfaces = new ArrayList<MethodBinding>();

    collectFromInterfaces(methodBinding, referenceBinding, new HashSet<ReferenceBinding>(),
            candidatesFromInterfaces);

    // there can be multiple matches for the same method name from adjacent interface hierarchies.
    Collections.sort(candidatesFromInterfaces, MostSpecificMethodBindingComparator.INSTANCE);

    if (!candidatesFromInterfaces.isEmpty()) {
        // return the most specific match
        return env.getFactory().newTypeMirror(candidatesFromInterfaces.get(0));
    }

    return null;
}

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