if err != nil {
			return nil, err
		}
		data, _, err := cache.GetMmap(cache.Default(), id)
		if err != nil {
			// Couldn't read from modindex. Assume we couldn't read from
			// the index because the module hasn't been indexed yet.
			data, err = indexModule(modroot)
			if err != nil {
				return nil, err
			}
			if err = cache.PutBytes(cache.Default(), id, data); err != nil {

					if r.eof {
						r.syntaxError()
					}
					c, c1 = c1, r.readByteNoBuf()
				}
				startLine = false

			case '/':
				if startLine {
					// Try to read this as a //go:embed comment.
					for i := range goEmbed {
						c = r.readByteNoBuf()
						if c != goEmbed[i] {
							goto SkipSlashSlash
						}
					}
					c = r.readByteNoBuf()

Alan Donovan <******@****.***> 1714508407 -0400

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Copied from Go distribution src/go/build/read.go.

package imports

import (
	"bufio"
	"bytes"
	"errors"
	"io"
	"unicode/utf8"
)

type importReader struct {
	b    *bufio.Reader
	buf  []byte
	peek byte
	err  error
	eof  bool
	nerr int
}

	}

	if val.Type().Kind() == reflect.Slice && val.Type().Elem().Kind() != reflect.Uint8 {
		// Slice of element values.
		// Grow slice.
		n := val.Len()
		val.Grow(1)
		val.SetLen(n + 1)

		// Recur to read element into slice.
		if err := d.unmarshalAttr(val.Index(n), attr); err != nil {
			val.SetLen(n)
			return err
		}
		return nil
	}

	if val.Type() == attrType {
		val.Set(reflect.ValueOf(attr))

// RUN: tf-opt -tf-tpu-resource-read-for-write %s | FileCheck %s --dump-input=always

// CHECK-LABEL: func @write_only_resource
// CHECK-SAME: ([[ARG0:%.*]]: tensor<i32>, [[ARG1:%.*]]: tensor<f32>, [[ARG2:%.*]]: tensor<*x!tf_type.resource<tensor<i32>>>)
func.func @write_only_resource(%arg0: tensor<i32>, %arg1: tensor<f32>, %arg2: tensor<*x!tf_type.resource<tensor<i32>>>) {
  // CHECK-NEXT: [[READ:%.*]] = "tf.ReadVariableOp"([[ARG2]])

  std::string result;
  result.resize(6);
  int64_t read = tf_random_access_file::Read(file, 0, 6, &result[0], status_);
  ASSERT_EQ(read, 6) << "Read: " << read << "\n";
  ASSERT_TF_OK(status_);
  ASSERT_EQ(result, "012345") << "Result: " << result << "\n";

  read = tf_random_access_file::Read(file, 6, 6, &result[0], status_);
  ASSERT_EQ(read, 4) << "Read: " << read << "\n";

	if n, err := r.Read(buf); err != io.ErrShortBuffer && n != 1 && bytes.Equal(buf, []byte{0x01}) {
		t.Fatalf("unexpected: %v %d %v", err, n, buf)
	}
	// read the remaining frame
	buf = make([]byte, 3)
	if n, err := r.Read(buf); err != io.ErrUnexpectedEOF && n != 1 && bytes.Equal(buf, []byte{0x02}) {
		t.Fatalf("unexpected: %v %d %v", err, n, buf)
	}
	// read EOF
	if n, err := r.Read(buf); err != io.EOF && n != 0 {

			!read(&oh32.MajorOperatingSystemVersion) ||
			!read(&oh32.MinorOperatingSystemVersion) ||
			!read(&oh32.MajorImageVersion) ||
			!read(&oh32.MinorImageVersion) ||
			!read(&oh32.MajorSubsystemVersion) ||
			!read(&oh32.MinorSubsystemVersion) ||
			!read(&oh32.Win32VersionValue) ||
			!read(&oh32.SizeOfImage) ||
			!read(&oh32.SizeOfHeaders) ||
			!read(&oh32.CheckSum) ||
			!read(&oh32.Subsystem) ||

    assertEquals(-1, reader.read());
    assertEquals(-1, reader.read(new char[10], 0, 10));
    assertEquals(-1, reader.read(CharBuffer.allocate(10)));
    assertEquals(0, reader.skip(10));
  }

  private static String readFully(CharSequenceReader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    int read;
    while ((read = reader.read()) != -1) {
      builder.append((char) read);