visitor.visitFileTree(root, intersect, owner);
            }

            @Override
            public void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree) {
                visitor.visitFileTreeBackedByFile(file, owner, FilteredMinimalFileTree.this);
            }
        }, owner);
    }

    @Override
    public void visit(FileVisitor visitor) {

                visitor.visitFileTree(root, patterns, fileTree);
            }

            @Override
            public void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree) {
                visitor.visitFileTreeBackedByFile(file, fileTree, sourceTree);
            }
        });
    }

    @Override

        void visitFileTree(File root, PatternSet patterns, FileTreeInternal fileTree);

        /**
         * Visits a file tree whose content is generated from the contents of a file.
         */
        void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree);
    }

                visitor.visitFileTree(root, patterns, fileTree);
            }

            @Override
            public void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree) {
                visitor.visitFileTreeBackedByFile(file, fileTree, sourceTree);
            }
        }, this);
    }

                            collections.add(fileTree);
                        }

                        @Override
                        public void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree) {
                            collections.add(fileTree);
                        }
                    });

    }

    @Override
    public void visitStructure(MinimalFileTreeStructureVisitor visitor, FileTreeInternal owner) {
        File backingFile = getBackingFile();
        visitor.visitFileTreeBackedByFile(backingFile, owner, this);
    }

    @Override
    public void visitDependencies(TaskDependencyResolveContext context) {
        context.add(getBackingFileProvider());
    }

                root.getAbsolutePath(),
                new PatternSetSnapshottingFilter(patterns, stat)
            )
                .map(roots::add);
        }

        @Override
        public void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree) {
            roots.add(fileSystemAccess.read(file.getAbsolutePath()));
            containsArchiveTrees = true;
        }

        when:
        fileTree.visitStructure(visitor, owner)

        then:
        1 * visitor.visitFileTreeBackedByFile(backingFile, owner, fileTree)
        0 * _
    }

    static class TestArchiveFileTree extends AbstractArchiveFileTree {
        File backingFile
        final String displayName = "<display>"

                            }
                        }

                        @Override
                        public void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree) {
                            taskInputs.add(file.getAbsolutePath());
                        }
                    });
                }

     */
    void visitFileTree(File root, PatternSet patterns, FileTreeInternal fileTree);

    /**
     * Visits a file tree whose content is generated from the contents of a file.
     */
    void visitFileTreeBackedByFile(File file, FileTreeInternal fileTree, FileSystemMirroringFileTree sourceTree);