// the caller to a list of callees.
	extraCalls map[*ir.Func][]nowritebarrierrecCall

	// curfn is the current function during AST walks.
	curfn *ir.Func
}

type nowritebarrierrecCall struct {
	target *ir.Func // caller or callee
	lineno src.XPos // line of call
}

// newNowritebarrierrecChecker creates a nowritebarrierrecChecker. It
// must be called before walk.
func newNowritebarrierrecChecker() *nowritebarrierrecChecker {

	if err := os.WriteFile(mainGo, []byte("package main\nfunc main() {}\n"), 0644); err != nil {
		t.Fatal(err)
	}
	cmd := testenv.Command(t, "go", "build", "-o", os.DevNull, mainGo)
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("%v: %v\n%s", cmd, err, out)
	}
}

func TestMustHaveExec(t *testing.T) {
	hasExec := false
	t.Run("MustHaveExec", func(t *testing.T) {
		testenv.MustHaveExec(t)

	}

	return err
}

func (e *AliasedExpression) aggregateRow(r Record, tableAlias string) error {
	return e.Expression.aggregateRow(r, tableAlias)
}

func (e *Expression) aggregateRow(r Record, tableAlias string) error {
	for _, ex := range e.And {
		err := ex.aggregateRow(r, tableAlias)
		if err != nil {
			return err
		}
	}
	return nil
}

var InstrumentGlobalsMap = make(map[string]ir.Node)
var InstrumentGlobalsSlice = make([]ir.Node, 0, 0)

func canInstrumentGlobal(g ir.Node) bool {
	if g.Op() != ir.ONAME {
		return false
	}
	n := g.(*ir.Name)
	if n.Class == ir.PFUNC {
		return false
	}
	if n.Sym().Pkg != types.LocalPkg {
		return false
	}