if t == nil || r.Type() == nil {
		n.SetType(nil)
		return n
	}
	switch t.Kind() {
	default:
		base.Errorf("invalid operation: %v (type %v does not support indexing)", n, t)
		n.SetType(nil)
		return n

	case types.TSTRING, types.TARRAY, types.TSLICE:
		n.Index = indexlit(n.Index)
		if t.IsString() {
			n.SetType(types.ByteType)
		} else {
			n.SetType(t.Elem())
		}
		why := "string"

	}
}

func TestSetBytesRoundTrip(t *testing.T) {
	f1 := func(in [32]byte, fe Element) bool {
		fe.SetBytes(in[:])

		// Mask the most significant bit as it's ignored by SetBytes. (Now
		// instead of earlier so we check the masking in SetBytes is working.)
		in[len(in)-1] &= (1 << 7) - 1

		return bytes.Equal(in[:], fe.Bytes()) && isInBounds(&fe)
	}

		}
	}
	return bytecount, nil
}

// SetBytes configures p for the given paragraph text. It replaces text
// previously set by SetBytes or SetString. If b contains a paragraph separator
// it will only process the first paragraph and report the number of bytes
// consumed from b including this separator. Error may be non-nil if options are
// given.
func (p *Paragraph) SetBytes(b []byte, opts ...Option) (n int, err error) {
	p.p = b

	args := []string{"create", set.Name, string(set.SetType)}
	if set.SetType == HashIPPortIP || set.SetType == HashIPPort || set.SetType == HashIPPortNet || set.SetType == HashIP {
		args = append(args,
			"family", set.HashFamily,
			"hashsize", strconv.Itoa(set.HashSize),
			"maxelem", strconv.Itoa(set.MaxElem),
		)
	}
	if set.SetType == BitmapPort {
		args = append(args, "range", set.PortRange)
	}

	return n.Bytes(maxModulus(uint(len(n.limbs))))
}

func natFromBytes(b []byte) *Nat {
	// Must not use Nat.SetBytes as it's used in TestSetBytes.
	bb := new(big.Int).SetBytes(b)
	return NewNat().setBig(bb)
}

func modulusFromBytes(b []byte) *Modulus {
	bb := new(big.Int).SetBytes(b)
	m, _ := NewModulusFromBig(bb)
	return m
}

// maxModulus returns the biggest modulus that can fit in n limbs.

            replaceExpr(expr.getExpression()));
        result.setType(expr.getType());
        result.setSourcePosition(expr);
        replaceVisitedExpressionWith(result);
    }

    @Override
    public void visitNotExpression(NotExpression expr) {
        NotExpression result = new NotExpression(
            replaceExpr(expr.getExpression()));
        result.setType(expr.getType());
        result.setSourcePosition(expr);

	return out
}

var feOne = new(field.Element).One()

// SetBytes sets v = x, where x is a 32-byte encoding of v. If x does not
// represent a valid point on the curve, SetBytes returns nil and an error and
// the receiver is unchanged. Otherwise, SetBytes returns v.
//
// Note that SetBytes accepts all non-canonical encodings of valid points.

			break
		}
		n = ir.NewConstExpr(v, n)
		n.SetType(t)
		return n

	case ir.OPLUS, ir.ONEG, ir.OBITNOT, ir.ONOT, ir.OREAL, ir.OIMAG:
		ot := operandType(n.Op(), t)
		if ot == nil {
			n = DefaultLit(n, nil)
			break
		}

		n := n.(*ir.UnaryExpr)
		n.X = convlit(n.X, ot)
		if n.X.Type() == nil {
			n.SetType(nil)
			return n
		}
		n.SetType(t)
		return n

        toolchain.setType("TYPE");
        toolchain.setProvides(props);
        PersistedToolchains userResult = new PersistedToolchains();
        userResult.setToolchains(Collections.singletonList(toolchain));

        props = new Properties();
        props.put("key", "global_value");
        toolchain = new ToolchainModel();
        toolchain.setType("TYPE");
        toolchain.setProvides(props);

			buf.WriteByte('\n')
			if err := dec.Decode(&r); err != nil {
				b.Fatalf("Decode error: %v", err)
			}
		}
	})
	b.SetBytes(int64(len(codeJSON)))
}

func BenchmarkUnicodeDecoder(b *testing.B) {
	b.ReportAllocs()
	j := []byte(`"\uD83D\uDE01"`)
	b.SetBytes(int64(len(j)))
	r := bytes.NewReader(j)
	dec := NewDecoder(r)
	var out string
	b.ResetTimer()
	for i := 0; i < b.N; i++ {