package workcmd

import (
	"cmd/go/internal/base"
	"cmd/go/internal/gover"
	"cmd/go/internal/modload"
	"context"
	"encoding/json"
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"golang.org/x/mod/module"

	"golang.org/x/mod/modfile"
)

var cmdEdit = &base.Command{
	UsageLine: "go work edit [editing flags] [go.work]",
	Short:     "edit go.work from tools or scripts",

	m2 := nat(nil).shr(m, n)

	// We want z = x**y mod m.
	// z₁ = x**y mod m1 = (x**y mod m) mod m1 = z mod m1
	// z₂ = x**y mod m2 = (x**y mod m) mod m2 = z mod m2
	// (We are using the math/big convention for names here,
	// where the computation is z = x**y mod m, so its parts are z1 and z2.
	// The paper is computing x = a**e mod n; it refers to these as x2 and z1.)
	z1 := nat(nil).expNN(x, y, m1, false)

	GOHOSTOS
		The operating system (GOOS) of the Go toolchain binaries.
	GOMOD
		The absolute path to the go.mod of the main module.
		If module-aware mode is enabled, but there is no go.mod, GOMOD will be
		os.DevNull ("/dev/null" on Unix-like systems, "NUL" on Windows).
		If module-aware mode is disabled, GOMOD will be the empty string.
	GOTOOLDIR
		The directory where the go tools (compile, cover, doc, etc...) are installed.

	if len(cmd.Commands) > 0 {
		if used >= len(args) {
			help.PrintUsage(os.Stderr, cmd)
			base.SetExitStatus(2)
			base.Exit()
		}
		if args[used] == "help" {
			// Accept 'go mod help' and 'go mod help foo' for 'go help mod' and 'go help mod foo'.
			telemetry.Inc("go/subcommand:" + strings.ReplaceAll(cfg.CmdName, " ", "-") + "-" + strings.Join(args[used:], "-"))
			help.Help(os.Stdout, append(slices.Clip(args[:used]), args[used+1:]...))

// If it cannot find a module path, it returns an empty string.
// It is tolerant of unrelated problems in the go.mod file.
func ModulePath(mod []byte) string {
	for len(mod) > 0 {
		line := mod
		mod = nil
		if i := bytes.IndexByte(line, '\n'); i >= 0 {
			line, mod = line[:i], line[i+1:]
		}
		if i := bytes.Index(line, slashSlash); i >= 0 {
			line = line[:i]
		}
		line = bytes.TrimSpace(line)

  }

  @SuppressWarnings("deprecation")
  public void testUnmodifiableMultisetShortCircuit() {
    Multiset<String> mod = HashMultiset.create();
    Multiset<String> unmod = Multisets.unmodifiableMultiset(mod);
    assertNotSame(mod, unmod);
    assertSame(unmod, Multisets.unmodifiableMultiset(unmod));
    ImmutableMultiset<String> immutable = ImmutableMultiset.of("a", "a", "b", "a");

	BuildBuildvcs      = "auto" // -buildvcs flag: "true", "false", or "auto"
	BuildContext       = defaultContext()
	BuildMod           string                  // -mod flag
	BuildModExplicit   bool                    // whether -mod was set explicitly
	BuildModReason     string                  // reason -mod was set, if set by default
	BuildLinkshared    bool                    // -linkshared flag
	BuildMSan          bool                    // -msan flag

// Otherwise, it returns p.
func (p *P256Point) SetBytes(b []byte) (*P256Point, error) {
	// p256Mul operates in the Montgomery domain with R = 2²⁵⁶ mod p. Thus rr
	// here is R in the Montgomery domain, or R×R mod p. See comment in
	// P256OrdInverse about how this is used.
	rr := p256Element{0x0000000000000003, 0xfffffffbffffffff,
		0xfffffffffffffffe, 0x00000004fffffffd}

	switch {

	if testing.Short() && os.Getenv("GO_BUILDER_NAME") == "" {
		globalSkip = func(t *testing.T) { t.Skip("short mode and $GO_BUILDER_NAME not set") }
		return m.Run()
	}
	if !platform.BuildModeSupported(runtime.Compiler, "plugin", runtime.GOOS, runtime.GOARCH) {
		globalSkip = func(t *testing.T) { t.Skip("plugin build mode not supported") }
		return m.Run()
	}
	if !testenv.HasCGO() {

The [`asynctimerchan` setting](/pkg/time/#NewTimer) disables this change.
There are no runtime metrics for this change,
This setting may be removed in a future release, Go 1.27 at the earliest.

Go 1.23 changed the mode bits reported by [`os.Lstat`](/pkg/os#Lstat) and [`os.Stat`](/pkg/os#Stat)
for reparse points, which can be controlled with the `winsymlink` setting.