// substrings that match those in the dictionary.
	const data = `<?xml version="1.0"?>
<book>
	<meta name="title" content="The Go Programming Language"/>
	<meta name="authors" content="Alan Donovan and Brian Kernighan"/>
	<meta name="published" content="2015-10-26"/>
	<meta name="isbn" content="978-0134190440"/>
	<data>...</data>
</book>
`

	var b bytes.Buffer

		return nil, nil
	}

	// Don't report diagnostics for modules marked before go1.21,
	// since at that time the go directive wasn't clearly
	// specified as a toolchain requirement.
	//
	// TODO(adonovan): after go1.21, call GoVersion directly.
	pkgVersion := any(pass.Pkg).(interface{ GoVersion() string }).GoVersion()
	if !versions.AtLeast(pkgVersion, "go1.21") {
		return nil, nil
	}

// license that can be found in the LICENSE file.

// Package shift defines an Analyzer that checks for shifts that exceed
// the width of an integer.
package shift

// TODO(adonovan): integrate with ctrflow (CFG-based) dead code analysis. May
// have impedance mismatch due to its (non-)treatment of constant
// expressions (such as runtime.GOARCH=="386").

import (
	"go/ast"
	"go/constant"

// if t's core type is a pointer; otherwise it returns t.
//
// Do not assume that Deref(T)==T implies T is not a pointer:
// consider "type T *T", for example.
//
// TODO(adonovan): ideally this would live in typesinternal, but that
// creates an import cycle. Move there when we melt this package down.
func Deref(t types.Type) types.Type {
	if ptr, ok := CoreType(t).(*types.Pointer); ok {

// Copyright 2013 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 assign

// TODO(adonovan): check also for assignments to struct fields inside
// methods that are on T instead of *T.

import (
	_ "embed"
	"fmt"
	"go/ast"
	"go/token"
	"go/types"
	"reflect"

	"golang.org/x/tools/go/analysis"

// This function scales very poorly with packages' transitive object
// references, which can be more than a million for each package near
// the top of a large project. (This was a significant contributor to
// #60621.)
// TODO(adonovan): opt: compute this information more efficiently
// by obtaining it from the internals of the gcexportdata decoder.
func importMap(imports []*types.Package) map[string]*types.Package {
	objects := make(map[types.Object]bool)

	"log"
	"os"
	"reflect"
	"runtime/debug"
	"strconv"
	"strings"

	"golang.org/x/telemetry/internal/counter"
)

// Supported reports whether the runtime supports [runtime.SetCrashOutput].
//
// TODO(adonovan): eliminate once go1.23+ is assured.
func Supported() bool { return setCrashOutput != nil }

var setCrashOutput func(*os.File) error // = runtime.SetCrashOutput on go1.23+

					TextEdits: missingKeys,
				}}
			}
			pass.Report(diag)
			return
		}
	})
	return nil, nil
}

// isLocalType reports whether typ belongs to the same package as pass.
// TODO(adonovan): local means "internal to a function"; rename to isSamePackageType.
func isLocalType(pass *analysis.Pass, typ types.Type) bool {
	switch x := aliases.Unalias(typ).(type) {
	case *types.Struct:

// within file f, or NoPos if there is no line of that number.
func LineStart(f *token.File, line int) token.Pos {
	// Use binary search to find the start offset of this line.
	//
	// TODO(adonovan): eventually replace this function with the
	// simpler and more efficient (*go/token.File).LineStart, added
	// in go1.12.

	min := 0        // inclusive
	max := f.Size() // exclusive
	for {

	Requires: []*analysis.Analyzer{inspect.Analyzer},
	Run:      run,
}

// flags
var funcs, stringMethods stringSetFlag

func init() {
	// TODO(adonovan): provide a comment or declaration syntax to
	// allow users to add their functions to this set using facts.
	// For example:
	//
	//    func ignoringTheErrorWouldBeVeryBad() error {