package fs

import "io"

// ReadFileFS is the interface implemented by a file system
// that provides an optimized implementation of [ReadFile].
type ReadFileFS interface {
	FS

	// ReadFile reads the named file and returns its contents.
	// A successful call returns a nil error, not io.EOF.
	// (Because ReadFile reads the whole file, the expected EOF

		}
		filenames = append(filenames, list...)
	}
	return parseFiles(t, readFileFS(fsys), filenames...)
}

func readFileOS(file string) (name string, b []byte, err error) {
	name = filepath.Base(file)
	b, err = os.ReadFile(file)
	return
}

func readFileFS(fsys fs.FS) func(string) (string, []byte, error) {
	return func(file string) (name string, b []byte, err error) {

var sysValue int

type readFileOnly struct{ ReadFileFS }

func (readFileOnly) Open(name string) (File, error) { return nil, ErrNotExist }

type openOnly struct{ FS }

func TestReadFile(t *testing.T) {
	// Test that ReadFile uses the method when present.
	data, err := ReadFile(readFileOnly{testFsys}, "hello.txt")
	if string(data) != "hello, world" || err != nil {

                println "finished"
                assert output.toString().readLines() == [":log", "output"]
                assert error.toString().readLines() == ["error"]
                assert before.toString().readLines() == [":log", "output", "error"]
                assert after.toString().readLines() == []
            }
        """

        expect:
        succeeds("log", "other")
    }

        def process = ['ar', '-t', binaryFile.getAbsolutePath()].execute(environments, null)
        return process.inputStream.readLines().drop(1)
    }

    List<String> listLinkedLibraries() {
        def process = ['otool', '-L', binaryFile.absolutePath].execute(environments, null)
        def lines = process.inputStream.readLines()
        return lines
    }

    List<Symbol> listSymbols() {

	}
}

func TestReadFile(t *testing.T) {
	filename := "rumpelstilzchen"
	contents, err := ReadFile(filename)
	if err == nil {
		t.Fatalf("ReadFile %s: error expected, none found", filename)
	}

	filename = "ioutil_test.go"
	contents, err = ReadFile(filename)
	if err != nil {
		t.Fatalf("ReadFile %s: %v", filename, err)
	}

	checkSize(t, filename, int64(len(contents)))
}

	}
}

func TestReadFile(t *testing.T) {
	t.Parallel()

	filename := "rumpelstilzchen"
	contents, err := ReadFile(filename)
	if err == nil {
		t.Fatalf("ReadFile %s: error expected, none found", filename)
	}

	filename = "read_test.go"
	contents, err = ReadFile(filename)
	if err != nil {
		t.Fatalf("ReadFile %s: %v", filename, err)
	}

	checkNamedSize(t, filename, int64(len(contents)))
}

			continue
		}
		defer os.Remove(f)
		id, err := ReadFile(f)
		if id != expectedID || err != nil {
			t.Errorf("ReadFile(testdata/%s) = %q, %v, want %q, nil", f, id, err, expectedID)
		}
		old := readSize
		readSize = 2048
		id, err = ReadFile(f)
		readSize = old
		if id != expectedID || err != nil {
			t.Errorf("ReadFile(%s) [readSize=2k] = %q, %v, want %q, nil", f, id, err, expectedID)
		}

			}
		}
		return true
	})
	return !safe
}

// ReadFile reads a file and adds it to the FileSet
// so that we can report errors against it using lineStart.
func ReadFile(pass *analysis.Pass, filename string) ([]byte, *token.File, error) {
	readFile := pass.ReadFile
	if readFile == nil {
		readFile = os.ReadFile
	}
	content, err := readFile(filename)
	if err != nil {
		return nil, nil, err
	}

func GetVersion() (*version.Version, error) {
	return getVersion(os.ReadFile)
}

// getVersion reads os release file from the give readFile function.
func getVersion(readFile readFileFunc) (*version.Version, error) {
	kernelVersionFile := "/proc/sys/kernel/osrelease"
	fileContent, err := readFile(kernelVersionFile)
	if err != nil {
		return nil, fmt.Errorf("failed to read os-release file: %s", err.Error())