m.Pkgs = []string{m.pattern}
		return
	}

	match := func(string) bool { return true }
	treeCanMatch := func(string) bool { return true }
	if !m.IsMeta() {
		match = pkgpattern.MatchPattern(m.pattern)
		treeCanMatch = pkgpattern.TreeCanMatchPattern(m.pattern)
	}

	have := map[string]bool{
		"builtin": true, // ignore pseudo-package that exists only for documentation
	}
	if !cfg.BuildContext.CgoEnabled {

		patternIsLocal: filepath.IsAbs(pattern) || search.IsRelativePath(pattern),
		version:        version,
	}
	if strings.Contains(q.pattern, "...") {
		q.matchWildcard = pkgpattern.MatchPattern(q.pattern)
		q.canMatchWildcardInModule = pkgpattern.TreeCanMatchPattern(q.pattern)
	}
	if err := q.validate(); err != nil {
		return q, err
	}
	return q, nil
}

	"cmd/go/internal/imports"
	"cmd/go/internal/modfetch"
	"cmd/go/internal/modfetch/codehost"
	"cmd/go/internal/modinfo"
	"cmd/go/internal/search"
	"cmd/go/internal/str"
	"cmd/go/internal/trace"
	"cmd/internal/pkgpattern"

	"golang.org/x/mod/module"
	"golang.org/x/mod/semver"
)

// Query looks up a revision of a given module given a version query string.
// The module must be a complete module path.