@SmoothFunction
@NotCacheable
public static Array<SFile> files(NativeApiImpl nativeApi, FilesParameters params) {
Path path = validatedPath("dir", params.dir());
FileSystem fileSystem = nativeApi.projectFileSystem();
if (path.isRoot()) {
throw new CannotListRootDirError();
}
if (path.firstPart().equals(SMOOTH_DIR)) {
throw new IllegalReadFromSmoothDirError(path);
}
switch (fileSystem.pathState(path)) {
case DIR:
return readFiles(nativeApi, fileSystem, path);
case FILE:
throw new NoSuchDirButFileError(path);
case NOTHING:
throw new NoSuchDirError(path);
default:
throw new Message(FATAL, "Broken 'files' function implementation: unreachable case");
}
}
private static Array<SFile> readFiles(NativeApiImpl nativeApi, FileSystem fileSystem, Path path) {
ArrayBuilder<SFile> fileArrayBuilder = nativeApi.arrayBuilder(SFile.class);
FileReader reader = new FileReader(nativeApi);
for (Path filePath : fileSystem.filesFromRecursive(path)) {
fileArrayBuilder.add(reader.createFile(filePath, path.append(filePath)));
}
return fileArrayBuilder.build();
}