if f.zero {
			memclrNoHeapPointers(v, f.size)
		}
		return v
	}
	if uintptr(f.nchunk) < f.size {
		f.chunk = uintptr(persistentalloc(uintptr(f.nalloc), 0, f.stat))
		f.nchunk = f.nalloc
	}

	v := unsafe.Pointer(f.chunk)
	if f.first != nil {
		f.first(f.arg, v)
	}
	f.chunk = f.chunk + f.size
	f.nchunk -= uint32(f.size)
	f.inuse += f.size
	return v
}

// getEsc gets a possibly-escaped character from chunk, for a character class.
func getEsc(chunk string) (r rune, nchunk string, err error) {
	if len(chunk) == 0 || chunk[0] == '-' || chunk[0] == ']' {
		err = ErrBadPattern
		return
	}
	if chunk[0] == '\\' {
		chunk = chunk[1:]
		if len(chunk) == 0 {
			err = ErrBadPattern
			return
		}
	}
	r, n := utf8.DecodeRuneInString(chunk)
	if r == utf8.RuneError && n == 1 {

    ByteSource source = out.asByteSource();
    int chunk1 = Math.min(dataSize, fileThreshold);
    int chunk2 = dataSize - chunk1;

    // Write just enough to not trip the threshold
    if (chunk1 > 0) {
      write(out, data, 0, chunk1, singleByte);
      assertTrue(ByteSource.wrap(data).slice(0, chunk1).contentEquals(source));
    }
    File file = out.getFile();
    assertNull(file);

	for _, g := range leaked {
		errString.WriteString(fmt.Sprintf("Leaked goroutine: %v\n", g.stack))
	}
	return errors.New(errString.String())
}

// Check adds a check to a test to ensure there are no leaked goroutines
// To use, simply call leak.Check(t) at the start of a test; Do not call it in defer.
// It is recommended to call this as the first step, as Cleanup is called in LIFO order; this ensures any

commands: [{
    executable: gradle
    args: check
    expected-output-file: check.out
    allow-additional-output: true
    allow-disordered-output: true

commands: [{
    executable: gradle
    args: showFile
    expected-output-file: check.out
    allow-additional-output: true

	a.hi = a.hi >> 2
	return a
}

// updateGeneric absorbs msg into the state.h accumulator. For each chunk m of
// 128 bits of message, it computes
//
//	h₊ = (h + m) * r  mod  2¹³⁰ - 5
//
// If the msg length is not a multiple of TagSize, it assumes the last
// incomplete chunk is the final one.
func updateGeneric(state *macState, msg []byte) {
	h0, h1, h2 := state.h[0], state.h[1], state.h[2]

commands: [{
    executable: gradle
    args: check

commands: [{
    executable: gradle
    args: check
}, {
    executable: gradle
    args: greet -q
    expected-output-file: greet.out
}, {
    executable: gradle
    args: run -q
    expected-output-file: run.out

	chunk := []byte("1;")
	for i := 0; i < 100; i++ {
		chunk = append(chunk, 'a') // chunk extension
	}
	chunk = append(chunk, "\r\nX\r\n"...)
	const bodylen = 1 << 20
	r := NewChunkedReader(&funcReader{f: func(i int) ([]byte, error) {
		if i < bodylen {
			return chunk, nil
		}
		return []byte("0\r\n"), nil
	}})
	_, err := io.ReadAll(r)
	if err == nil {