Update dependencies (#2007)

* Update dependencies

1 files changed, 0 insertions, 433 deletions

diff --git a/vendor/golang.org/x/tools/go/internal/pkgbits/decoder.go b/vendor/golang.org/x/tools/go/internal/pkgbits/decoder.go
deleted file mode 100644
index 2bc79366..00000000
--- a/vendor/golang.org/x/tools/go/internal/pkgbits/decoder.go
+++ /dev/null
@@ -1,433 +0,0 @@
-// Copyright 2021 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.
-
-package pkgbits
-
-import (
-	"encoding/binary"
-	"fmt"
-	"go/constant"
-	"go/token"
-	"math/big"
-	"os"
-	"runtime"
-	"strings"
-)
-
-// A PkgDecoder provides methods for decoding a package's Unified IR
-// export data.
-type PkgDecoder struct {
-	// version is the file format version.
-	version uint32
-
-	// sync indicates whether the file uses sync markers.
-	sync bool
-
-	// pkgPath is the package path for the package to be decoded.
-	//
-	// TODO(mdempsky): Remove; unneeded since CL 391014.
-	pkgPath string
-
-	// elemData is the full data payload of the encoded package.
-	// Elements are densely and contiguously packed together.
-	//
-	// The last 8 bytes of elemData are the package fingerprint.
-	elemData string
-
-	// elemEnds stores the byte-offset end positions of element
-	// bitstreams within elemData.
-	//
-	// For example, element I's bitstream data starts at elemEnds[I-1]
-	// (or 0, if I==0) and ends at elemEnds[I].
-	//
-	// Note: elemEnds is indexed by absolute indices, not
-	// section-relative indices.
-	elemEnds []uint32
-
-	// elemEndsEnds stores the index-offset end positions of relocation
-	// sections within elemEnds.
-	//
-	// For example, section K's end positions start at elemEndsEnds[K-1]
-	// (or 0, if K==0) and end at elemEndsEnds[K].
-	elemEndsEnds [numRelocs]uint32
-}
-
-// PkgPath returns the package path for the package
-//
-// TODO(mdempsky): Remove; unneeded since CL 391014.
-func (pr *PkgDecoder) PkgPath() string { return pr.pkgPath }
-
-// SyncMarkers reports whether pr uses sync markers.
-func (pr *PkgDecoder) SyncMarkers() bool { return pr.sync }
-
-// NewPkgDecoder returns a PkgDecoder initialized to read the Unified
-// IR export data from input. pkgPath is the package path for the
-// compilation unit that produced the export data.
-//
-// TODO(mdempsky): Remove pkgPath parameter; unneeded since CL 391014.
-func NewPkgDecoder(pkgPath, input string) PkgDecoder {
-	pr := PkgDecoder{
-		pkgPath: pkgPath,
-	}
-
-	// TODO(mdempsky): Implement direct indexing of input string to
-	// avoid copying the position information.
-
-	r := strings.NewReader(input)
-
-	assert(binary.Read(r, binary.LittleEndian, &pr.version) == nil)
-
-	switch pr.version {
-	default:
-		panic(fmt.Errorf("unsupported version: %v", pr.version))
-	case 0:
-		// no flags
-	case 1:
-		var flags uint32
-		assert(binary.Read(r, binary.LittleEndian, &flags) == nil)
-		pr.sync = flags&flagSyncMarkers != 0
-	}
-
-	assert(binary.Read(r, binary.LittleEndian, pr.elemEndsEnds[:]) == nil)
-
-	pr.elemEnds = make([]uint32, pr.elemEndsEnds[len(pr.elemEndsEnds)-1])
-	assert(binary.Read(r, binary.LittleEndian, pr.elemEnds[:]) == nil)
-
-	pos, err := r.Seek(0, os.SEEK_CUR)
-	assert(err == nil)
-
-	pr.elemData = input[pos:]
-	assert(len(pr.elemData)-8 == int(pr.elemEnds[len(pr.elemEnds)-1]))
-
-	return pr
-}
-
-// NumElems returns the number of elements in section k.
-func (pr *PkgDecoder) NumElems(k RelocKind) int {
-	count := int(pr.elemEndsEnds[k])
-	if k > 0 {
-		count -= int(pr.elemEndsEnds[k-1])
-	}
-	return count
-}
-
-// TotalElems returns the total number of elements across all sections.
-func (pr *PkgDecoder) TotalElems() int {
-	return len(pr.elemEnds)
-}
-
-// Fingerprint returns the package fingerprint.
-func (pr *PkgDecoder) Fingerprint() [8]byte {
-	var fp [8]byte
-	copy(fp[:], pr.elemData[len(pr.elemData)-8:])
-	return fp
-}
-
-// AbsIdx returns the absolute index for the given (section, index)
-// pair.
-func (pr *PkgDecoder) AbsIdx(k RelocKind, idx Index) int {
-	absIdx := int(idx)
-	if k > 0 {
-		absIdx += int(pr.elemEndsEnds[k-1])
-	}
-	if absIdx >= int(pr.elemEndsEnds[k]) {
-		errorf("%v:%v is out of bounds; %v", k, idx, pr.elemEndsEnds)
-	}
-	return absIdx
-}
-
-// DataIdx returns the raw element bitstream for the given (section,
-// index) pair.
-func (pr *PkgDecoder) DataIdx(k RelocKind, idx Index) string {
-	absIdx := pr.AbsIdx(k, idx)
-
-	var start uint32
-	if absIdx > 0 {
-		start = pr.elemEnds[absIdx-1]
-	}
-	end := pr.elemEnds[absIdx]
-
-	return pr.elemData[start:end]
-}
-
-// StringIdx returns the string value for the given string index.
-func (pr *PkgDecoder) StringIdx(idx Index) string {
-	return pr.DataIdx(RelocString, idx)
-}
-
-// NewDecoder returns a Decoder for the given (section, index) pair,
-// and decodes the given SyncMarker from the element bitstream.
-func (pr *PkgDecoder) NewDecoder(k RelocKind, idx Index, marker SyncMarker) Decoder {
-	r := pr.NewDecoderRaw(k, idx)
-	r.Sync(marker)
-	return r
-}
-
-// NewDecoderRaw returns a Decoder for the given (section, index) pair.
-//
-// Most callers should use NewDecoder instead.
-func (pr *PkgDecoder) NewDecoderRaw(k RelocKind, idx Index) Decoder {
-	r := Decoder{
-		common: pr,
-		k:      k,
-		Idx:    idx,
-	}
-
-	// TODO(mdempsky) r.data.Reset(...) after #44505 is resolved.
-	r.Data = *strings.NewReader(pr.DataIdx(k, idx))
-
-	r.Sync(SyncRelocs)
-	r.Relocs = make([]RelocEnt, r.Len())
-	for i := range r.Relocs {
-		r.Sync(SyncReloc)
-		r.Relocs[i] = RelocEnt{RelocKind(r.Len()), Index(r.Len())}
-	}
-
-	return r
-}
-
-// A Decoder provides methods for decoding an individual element's
-// bitstream data.
-type Decoder struct {
-	common *PkgDecoder
-
-	Relocs []RelocEnt
-	Data   strings.Reader
-
-	k   RelocKind
-	Idx Index
-}
-
-func (r *Decoder) checkErr(err error) {
-	if err != nil {
-		errorf("unexpected decoding error: %w", err)
-	}
-}
-
-func (r *Decoder) rawUvarint() uint64 {
-	x, err := binary.ReadUvarint(&r.Data)
-	r.checkErr(err)
-	return x
-}
-
-func (r *Decoder) rawVarint() int64 {
-	ux := r.rawUvarint()
-
-	// Zig-zag decode.
-	x := int64(ux >> 1)
-	if ux&1 != 0 {
-		x = ^x
-	}
-	return x
-}
-
-func (r *Decoder) rawReloc(k RelocKind, idx int) Index {
-	e := r.Relocs[idx]
-	assert(e.Kind == k)
-	return e.Idx
-}
-
-// Sync decodes a sync marker from the element bitstream and asserts
-// that it matches the expected marker.
-//
-// If r.common.sync is false, then Sync is a no-op.
-func (r *Decoder) Sync(mWant SyncMarker) {
-	if !r.common.sync {
-		return
-	}
-
-	pos, _ := r.Data.Seek(0, os.SEEK_CUR) // TODO(mdempsky): io.SeekCurrent after #44505 is resolved
-	mHave := SyncMarker(r.rawUvarint())
-	writerPCs := make([]int, r.rawUvarint())
-	for i := range writerPCs {
-		writerPCs[i] = int(r.rawUvarint())
-	}
-
-	if mHave == mWant {
-		return
-	}
-
-	// There's some tension here between printing:
-	//
-	// (1) full file paths that tools can recognize (e.g., so emacs
-	//     hyperlinks the "file:line" text for easy navigation), or
-	//
-	// (2) short file paths that are easier for humans to read (e.g., by
-	//     omitting redundant or irrelevant details, so it's easier to
-	//     focus on the useful bits that remain).
-	//
-	// The current formatting favors the former, as it seems more
-	// helpful in practice. But perhaps the formatting could be improved
-	// to better address both concerns. For example, use relative file
-	// paths if they would be shorter, or rewrite file paths to contain
-	// "$GOROOT" (like objabi.AbsFile does) if tools can be taught how
-	// to reliably expand that again.
-
-	fmt.Printf("export data desync: package %q, section %v, index %v, offset %v\n", r.common.pkgPath, r.k, r.Idx, pos)
-
-	fmt.Printf("\nfound %v, written at:\n", mHave)
-	if len(writerPCs) == 0 {
-		fmt.Printf("\t[stack trace unavailable; recompile package %q with -d=syncframes]\n", r.common.pkgPath)
-	}
-	for _, pc := range writerPCs {
-		fmt.Printf("\t%s\n", r.common.StringIdx(r.rawReloc(RelocString, pc)))
-	}
-
-	fmt.Printf("\nexpected %v, reading at:\n", mWant)
-	var readerPCs [32]uintptr // TODO(mdempsky): Dynamically size?
-	n := runtime.Callers(2, readerPCs[:])
-	for _, pc := range fmtFrames(readerPCs[:n]...) {
-		fmt.Printf("\t%s\n", pc)
-	}
-
-	// We already printed a stack trace for the reader, so now we can
-	// simply exit. Printing a second one with panic or base.Fatalf
-	// would just be noise.
-	os.Exit(1)
-}
-
-// Bool decodes and returns a bool value from the element bitstream.
-func (r *Decoder) Bool() bool {
-	r.Sync(SyncBool)
-	x, err := r.Data.ReadByte()
-	r.checkErr(err)
-	assert(x < 2)
-	return x != 0
-}
-
-// Int64 decodes and returns an int64 value from the element bitstream.
-func (r *Decoder) Int64() int64 {
-	r.Sync(SyncInt64)
-	return r.rawVarint()
-}
-
-// Int64 decodes and returns a uint64 value from the element bitstream.
-func (r *Decoder) Uint64() uint64 {
-	r.Sync(SyncUint64)
-	return r.rawUvarint()
-}
-
-// Len decodes and returns a non-negative int value from the element bitstream.
-func (r *Decoder) Len() int { x := r.Uint64(); v := int(x); assert(uint64(v) == x); return v }
-
-// Int decodes and returns an int value from the element bitstream.
-func (r *Decoder) Int() int { x := r.Int64(); v := int(x); assert(int64(v) == x); return v }
-
-// Uint decodes and returns a uint value from the element bitstream.
-func (r *Decoder) Uint() uint { x := r.Uint64(); v := uint(x); assert(uint64(v) == x); return v }
-
-// Code decodes a Code value from the element bitstream and returns
-// its ordinal value. It's the caller's responsibility to convert the
-// result to an appropriate Code type.
-//
-// TODO(mdempsky): Ideally this method would have signature "Code[T
-// Code] T" instead, but we don't allow generic methods and the
-// compiler can't depend on generics yet anyway.
-func (r *Decoder) Code(mark SyncMarker) int {
-	r.Sync(mark)
-	return r.Len()
-}
-
-// Reloc decodes a relocation of expected section k from the element
-// bitstream and returns an index to the referenced element.
-func (r *Decoder) Reloc(k RelocKind) Index {
-	r.Sync(SyncUseReloc)
-	return r.rawReloc(k, r.Len())
-}
-
-// String decodes and returns a string value from the element
-// bitstream.
-func (r *Decoder) String() string {
-	r.Sync(SyncString)
-	return r.common.StringIdx(r.Reloc(RelocString))
-}
-
-// Strings decodes and returns a variable-length slice of strings from
-// the element bitstream.
-func (r *Decoder) Strings() []string {
-	res := make([]string, r.Len())
-	for i := range res {
-		res[i] = r.String()
-	}
-	return res
-}
-
-// Value decodes and returns a constant.Value from the element
-// bitstream.
-func (r *Decoder) Value() constant.Value {
-	r.Sync(SyncValue)
-	isComplex := r.Bool()
-	val := r.scalar()
-	if isComplex {
-		val = constant.BinaryOp(val, token.ADD, constant.MakeImag(r.scalar()))
-	}
-	return val
-}
-
-func (r *Decoder) scalar() constant.Value {
-	switch tag := CodeVal(r.Code(SyncVal)); tag {
-	default:
-		panic(fmt.Errorf("unexpected scalar tag: %v", tag))
-
-	case ValBool:
-		return constant.MakeBool(r.Bool())
-	case ValString:
-		return constant.MakeString(r.String())
-	case ValInt64:
-		return constant.MakeInt64(r.Int64())
-	case ValBigInt:
-		return constant.Make(r.bigInt())
-	case ValBigRat:
-		num := r.bigInt()
-		denom := r.bigInt()
-		return constant.Make(new(big.Rat).SetFrac(num, denom))
-	case ValBigFloat:
-		return constant.Make(r.bigFloat())
-	}
-}
-
-func (r *Decoder) bigInt() *big.Int {
-	v := new(big.Int).SetBytes([]byte(r.String()))
-	if r.Bool() {
-		v.Neg(v)
-	}
-	return v
-}
-
-func (r *Decoder) bigFloat() *big.Float {
-	v := new(big.Float).SetPrec(512)
-	assert(v.UnmarshalText([]byte(r.String())) == nil)
-	return v
-}
-
-// @@@ Helpers
-
-// TODO(mdempsky): These should probably be removed. I think they're a
-// smell that the export data format is not yet quite right.
-
-// PeekPkgPath returns the package path for the specified package
-// index.
-func (pr *PkgDecoder) PeekPkgPath(idx Index) string {
-	r := pr.NewDecoder(RelocPkg, idx, SyncPkgDef)
-	path := r.String()
-	if path == "" {
-		path = pr.pkgPath
-	}
-	return path
-}
-
-// PeekObj returns the package path, object name, and CodeObj for the
-// specified object index.
-func (pr *PkgDecoder) PeekObj(idx Index) (string, string, CodeObj) {
-	r := pr.NewDecoder(RelocName, idx, SyncObject1)
-	r.Sync(SyncSym)
-	r.Sync(SyncPkg)
-	path := pr.PeekPkgPath(r.Reloc(RelocPkg))
-	name := r.String()
-	assert(name != "")
-
-	tag := CodeObj(r.Code(SyncCodeObj))
-
-	return path, name, tag
-}