if b.IsCmdList {
			return nil
		}
		return errors.New("binary-only packages are no longer supported")
	}

	if p.Module != nil && !allowedVersion(p.Module.GoVersion) {
		return errors.New("module requires Go " + p.Module.GoVersion + " or later")
	}

	if err := b.checkDirectives(a); err != nil {
		return err
	}

	if err := sh.Mkdir(a.Objdir); err != nil {
		return err
	}

		f.LineTable = t
		f.FrameSize = int(info.deferreturn())
		syms[i] = Sym{
			Value:     f.Entry,
			Type:      'T',
			Name:      t.funcName(info.nameOff()),
			GoType:    0,
			Func:      f,
			goVersion: t.version,
		}
		f.Sym = &syms[i]
	}
	return funcs
}

// findFunc returns the funcData corresponding to the given program counter.
func (t *LineTable) findFunc(pc uint64) funcData {

		Major:        "42",
		Minor:        "42",
		GitVersion:   "42",
		GitCommit:    "34973274ccef6ab4dfaaf86599792fa9c3fe4689",
		GitTreeState: "Dirty",
		BuildDate:    time.Now().String(),
		GoVersion:    goruntime.Version(),
		Compiler:     goruntime.Compiler,
		Platform:     fmt.Sprintf("%s/%s", goruntime.GOOS, goruntime.GOARCH),
	}
}

func f[S ~[]E, E any](S) {}

func _() {
	f([]string{})
}
`
	// Per the go:build directive, the source must typecheck
	// even though the (module) Go version is set to go1.17.
	conf := Config{GoVersion: "go1.17"}
	mustTypecheck(src, &conf, nil)

				// Go 1.23 and later require vendored packages to be present in modules.txt to be imported.
				_, ok := vendorPkgModule[path]
				if ok || (gover.Compare(MainModules.GoVersion(), gover.ExplicitModulesTxtImportVersion) < 0) {
					mods = append(mods, vendorPkgModule[path])
					dirs = append(dirs, dir)
					roots = append(roots, vendorDir)
				} else {
					subCommand := "mod"

package build

import (
	"bytes"
	"errors"
	"fmt"
	"go/ast"
	"go/build/constraint"
	"go/doc"
	"go/token"
	"internal/buildcfg"
	"internal/godebug"
	"internal/goroot"
	"internal/goversion"
	"internal/platform"
	"io"
	"io/fs"
	"os"
	"os/exec"
	pathpkg "path"
	"path/filepath"
	"runtime"
	"slices"
	"strconv"
	"strings"
	"unicode"
	"unicode/utf8"
	_ "unsafe" // for linkname

func f[S ~[]E, E any](S) {}

func _() {
	f([]string{})
}
`
	// Per the go:build directive, the source must typecheck
	// even though the (module) Go version is set to go1.17.
	conf := Config{GoVersion: "go1.17"}
	mustTypecheck(src, &conf, nil)

	Unresolved         []*Ident        // unresolved identifiers in this file. Deprecated: see Object
	Comments           []*CommentGroup // list of all comments in the source file
	GoVersion          string          // minimum Go version required by //go:build or // +build directives
}

// Pos returns the position of the package declaration.
// (Use FileStart for the start of the entire file.)

        Dir        string        // directory holding local copy of files, if any
        GoMod      string        // path to go.mod file describing module, if any
        GoVersion  string        // go version used in module
        Retracted  []string      // retraction information, if any (with -retracted or -u)
        Deprecated string        // deprecation message, if any (with -u)

		goVers := gover.GoModLookup(gomod, "go")
		if gover.Compare(goVers, gover.Local()) > 0 {
			return &gover.TooNewError{What: r.ModulePath() + "@" + version, GoVersion: goVers}
		}
	} else if !errors.Is(err, fs.ErrNotExist) {
		return err
	}

	dl, err := r.code.ReadZip(ctx, rev, subdir, codehost.MaxZipFile)
	if err != nil {
		return err
	}