func bench(b *testing.B, grammar *ast.Grammar, parsers []testsuite.ResetParser, record bool) {
num := len(parsers)
if *bN != 0 {
b.N = *bN
}
var m *mem.Mem
var err error
if record {
m, err = mem.NewRecord(grammar)
} else {
m, err = mem.New(grammar)
}
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
if err := parsers[i%num].Reset(); err != nil {
b.Fatal(err)
}
if _, err := m.Validate(parsers[i%num]); err != nil {
b.Fatal(err)
}
}
}
func test(t *testing.T, g *ast.Grammar, p parser.Interface, expected bool, desc string, record bool) {
if interp.HasRecursion(g) {
t.Skipf("interp was not designed to handle left recursion")
}
var m *mem.Mem
var err error
if record {
m, err = mem.NewRecord(g)
} else {
m, err = mem.New(g)
}
if err != nil {
t.Fatal(err)
}
match, err := m.Validate(p)
if err != nil {
t.Fatal(err)
}
if match != expected {
t.Fatalf("Expected %v on given \n%s\n on \n%s", expected, g.String(), desc)
}
}
func compile(g *ast.Grammar, record bool) (*Auto, error) {
var m *mem.Mem
var err error
if record {
m, err = mem.NewRecord(g)
} else {
m, err = mem.New(g)
}
if err != nil {
return nil, err
}
if err := m.Compile(); err != nil {
return nil, err
}
a := &Auto{
calls: m.Calls,
returns: newReturns(m.Returns),
escapables: m.Escapables,
start: m.Start,
stateToNullable: m.StateToNullable,
accept: m.Accept,
}
return a, nil
}