"cmd/go/internal/par"
	"cmd/go/internal/search"
	"cmd/go/internal/str"
	"cmd/go/internal/trace"
	"cmd/internal/pkgpattern"

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

type stdFilter int8

const (
	omitStd = stdFilter(iota)
	includeStd
)

// matchPackages is like m.MatchPackages, but uses a local variable (rather than
// a global) for tags, can include or exclude packages in the standard library,