func writeInt(w io.Writer, buf []byte, x int) error {
	binary.PutVarint(buf, int64(x))
	_, err := w.Write(buf[0:binary.MaxVarintLen64])
	return err
}

// readInt reads an int x from r using buf to buffer the read and returns x.
func readInt(r io.Reader, buf []byte) (int64, error) {
	_, err := io.ReadFull(r, buf[0:binary.MaxVarintLen64]) // ok to continue with error
	x, _ := binary.Varint(buf)
	return x, err
}

		switch m {
		case plan9obj.Magic386, plan9obj.MagicAMD64, plan9obj.MagicARM:
			return true
		}
	}
	return false
}

func decodeString(data []byte) (s string, rest []byte) {
	u, n := binary.Uvarint(data)
	if n <= 0 || u > uint64(len(data)-n) {
		return "", nil
	}
	return string(data[n : uint64(n)+u]), data[uint64(n)+u:]
}

// readString returns the string at address addr in the executable x.

	}

	// Value delta
	val, n := binary.Varint(it.p)
	if n <= 0 {
		log.Fatalf("bad Value varint in pciterNext: read %v", n)
	}
	it.p = it.p[n:]

	if val == 0 && !it.start {
		it.Done = true
		return
	}

	it.start = false
	it.Value += int32(val)

	// pc delta
	pc, n := binary.Uvarint(it.p)
	if n <= 0 {
		log.Fatalf("bad pc varint in pciterNext: read %v", n)
	}
	it.p = it.p[n:]

		return ""
	}
	s := string(a.data[:nul])
	a.data = a.data[nul+1:]
	return s
}

func (a *elfAttributeList) uleb128() uint64 {
	if a.err != nil {
		return 0
	}
	v, size := binary.Uvarint(a.data)
	a.data = a.data[size:]
	return v
}

// Read an elfAttribute from the list following the rules used on ARM systems.
func (a *elfAttributeList) armAttr() elfAttribute {

	r.obj(name)
}

func (p *iimporter) stringAt(off uint64) string {
	if s, ok := p.stringCache[off]; ok {
		return s
	}

	slen, n := binary.Uvarint(p.stringData[off:])
	if n <= 0 {
		errorf("varint failed")
	}
	spos := off + uint64(n)
	s := string(p.stringData[spos : spos+slen])
	p.stringCache[off] = s
	return s
}

func (p *iimporter) pkgAt(off uint64) *types.Package {

var errMalformedVarint = errors.New("malformatted base-128 varint")

// readVal reads unsigned base-128 value from r.
func (p *parser) readVal() (uint64, error) {
	v, n := binary.Uvarint(p.data[p.off:])
	if n <= 0 {
		return 0, errMalformedVarint
	}
	p.off += n
	return v, nil
}

func readValFrom(buf []byte) (v uint64, rem []byte, err error) {
	v, n := binary.Uvarint(buf)
	if n <= 0 {

func (d *decoder) stringTableAt(off int) string {
	if off < 0 || off >= len(d.str) {
		panic(errCorrupt)
	}
	s := d.str[off:]
	v, n := binary.Uvarint(s)
	if n <= 0 || v > uint64(len(s[n:])) {
		panic(errCorrupt)
	}
	return asString(s[n : n+int(v)])
}

// A reader reads sequential fields from a section of the index format.
type reader struct {

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Declares that a property represents a variant dimension. Variants are used in dependency
 * resolution to discriminate between various binaries that may match the requirements (such
 * as a platform, a build type, ...).
 *

  compileTestVariantSwift -> linkTestVariant -> installTestVariant -> xcTestVariant [dir=back, style=dashed]
  compileTestVariantSwift[label=<compile<i>Variant</i>Swift>]
  linkTestVariant[label=<link<i>Variant</i>>]
  installTestVariant[label=<installTest<i>Variant</i>>]
  xcTestVariant[label=<xcTest<i>Variant</i>>]

  rankdir=LR

  compileVariantCpp -> linkVariant -> installVariant -> assembleVariant [dir=back, style=dashed]
  compileVariantCpp[label=<compile<i>Variant</i>Cpp>]
  linkVariant[label=<link<i>Variant</i>>]
  installVariant[label=<install<i>Variant</i>>]
  assembleVariant[label=<assemble<i>Variant</i>>]