replaceVisitedExpressionWith(result);
    }

    @Override
    public void visitRangeExpression(RangeExpression expr) {
        RangeExpression result = new RangeExpression(
            replaceExpr(expr.getFrom()),
            replaceExpr(expr.getTo()),
            expr.isInclusive()
        );
        result.setType(expr.getType());
        result.setSourcePosition(expr);
        replaceVisitedExpressionWith(result);

    }

    @Override
    public String toString() {
        return String.format("%s -> %s", from.toString(), dependencyMetadata);
    }

    @Override
    public NodeState getFrom() {
        return from;
    }

    @Override
    public DependencyMetadata getDependencyMetadata() {
        return dependencyMetadata;
    }

    /**

        return Stub(DependencyEdge) {
            toString() >> "$requested -> $selected"
            getRequested() >> requested
            getActual() >> selected
            getFrom() >> from
        }
    }

        assert actualSteps == expectedSteps
    }

    private TransformRegistration registration(AttributeContainer from, AttributeContainer to) {
        return Mock(TransformRegistration) {
            getFrom() >> from
            getTo() >> to
            getTransformStep() >> Stub(TransformStep)
        }
    }

    private ResolvedVariant variant(Map<String, Object> attributes) {

        this.listeners.add(copySpecListener);
    }

    @VisibleForTesting
    public Set<Object> getSourcePaths() {
        return sourcePaths.getFrom();
    }

    @Nullable
    public String getDestPath() {
        return destDir == null ? null : PATH_NOTATION_PARSER.parseNotation(destDir);
    }

    @Override
    @Nullable

                    registerTransform(FileSizer) { reg ->
                        reg.getFrom().attribute(artifactType, "jar")
                        reg.getTo().attribute(artifactType, "intermediate")
                    }

                    registerTransform(FileSizer) { reg ->
                        reg.getFrom().attribute(artifactType, "intermediate")
                        reg.getTo().attribute(artifactType, "final")

					if invalid {
						return fmt.Errorf("%s is currently not supported with CUSTOM action", name)
					}
					return nil
				}
				for _, from := range rule.GetFrom() {
					if src := from.GetSource(); src != nil {
						errs = appendErrors(errs, check(len(src.Namespaces) != 0, "From.Namespaces"))
						errs = appendErrors(errs, check(len(src.NotNamespaces) != 0, "From.NotNamespaces"))

    @Test
    fun `assignment to delegated property means #setFrom`() {

        val fileCollection = mock<ConfigurableFileCollection>()
        var delegatedProperty by fileCollection

        val value = mock<ConfigurableFileCollection>()
        delegatedProperty = value

        verify(fileCollection).setFrom(value)
        assertThat(delegatedProperty, sameInstance(fileCollection))
    }

    setFrom(value)


/**
 * Sets the ConfigurableFileCollection to contain the source paths of passed collection.
 * This is the same as calling ConfigurableFileCollection.setFrom(fileCollection: FileCollection).
 *
 * @since 8.2
 */
fun ConfigurableFileCollection.assign(fileCollection: FileCollection) {
    this.setFrom(fileCollection)

        given:
        collection.setFrom('file')

        when:
        actOn(collection)
        def result = collection.files

        then:
        result == [] as Set

        and:
        0 * fileResolver.resolve('file')

        where:
        action         | actOn
        'setFrom()'    | { it.setFrom() }
        'setFrom([])'  | { it.setFrom([]) }