Merge pull request #86 from xssnick/v14-1

V14.1

README.md

@@ -3,7 +3,7 @@
 <img align="right" width="425px" src="https://github.com/xssnick/props/blob/master/logoimg.png?raw=true">
 
 [![Based on TON][ton-svg]][ton]
-![Coverage](https://img.shields.io/badge/Coverage-70.6%25-brightgreen)
+![Coverage](https://img.shields.io/badge/Coverage-70.5%25-brightgreen)
 
 Golang library for interacting with TON blockchain.
 

ton/nft/content.go

@@ -2,7 +2,6 @@ package nft
 
 import (
 	"crypto/sha256"
-	"errors"
 	"fmt"
 
 	"github.com/xssnick/tonutils-go/tvm/cell"
@@ -36,7 +35,7 @@ func ContentFromCell(c *cell.Cell) (ContentAny, error) {
 func ContentFromSlice(s *cell.Slice) (ContentAny, error) {
 	if s.BitsLeft() < 8 {
 		if s.RefsNum() == 0 {
-			return nil, errors.New("invalid content")
+			return &ContentOffchain{}, nil
 		}
 		s = s.MustLoadRef()
 	}

tvm/cell/slice.go

@@ -167,9 +167,13 @@ func (c *Slice) MustLoadBigUInt(sz uint) *big.Int {
 
 func (c *Slice) LoadBigUInt(sz uint) (*big.Int, error) {
 	if sz > 256 {
-		return nil, ErrTooBigValue
+		return nil, ErrTooBigSize
 	}
 
+	return c.loadBigNumber(sz)
+}
+
+func (c *Slice) loadBigNumber(sz uint) (*big.Int, error) {
 	b, err := c.LoadSlice(sz)
 	if err != nil {
 		return nil, err
@@ -190,7 +194,11 @@ func (c *Slice) LoadBigUInt(sz uint) (*big.Int, error) {
 }
 
 func (c *Slice) LoadBigInt(sz uint) (*big.Int, error) {
-	u, err := c.LoadBigUInt(sz)
+	if sz > 257 {
+		return nil, ErrTooBigSize
+	}
+
+	u, err := c.loadBigNumber(sz)
 	if err != nil {
 		return nil, err
 	}