WARNING: Identifier directly after number

[jafri]

Get the following warning from building

WARNING in ./node_modules/bcrypto/lib/node/bn.js 51:17
    Module parse failed: Identifier directly after number (51:17)
    You may need an appropriate loader to handle this file type.
    |  */
    |
    > const U8_MAX = (1n << 8n) - 1n;
    | const U16_MAX = (1n << 16n) - 1n;

[pinheadmz]

@jafri what produced this error? The regular installation/build of bcrypto for bcoin or handshake? Or was it a react build?

These are bigInt's. See: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt

[tynes]

There isn't a way to babelify BigInts. The newer versions of browsers do support them, to build with babel/webpack you will need to tell babel to exclude lib/node/bn.js

[jafri]

@pinheadmz just a regular installation and its just a warning, works fine.

[chjj]

@jafri, the v8 bigint backend isn't meant to be babelified for this reason. The package browser field is meant to enforce this and fall back to the vanilla JS version:

• https://github.com/bcoin-org/bcrypto/blob/master/package.json#L44
• https://github.com/bcoin-org/bcrypto/blob/master/lib/bn-browser.js

[bradicalone]

bcrypto/lib/node/bn.js: Identifier directly after number (46:17)

44 | */
45 |

46 | const U8_MAX = (1n << 8n) - 1n;
| ^
47 | const U16_MAX = (1n << 16n) - 1n;
48 | const U32_MAX = (1n << 32n) - 1n;
49 | const U64_MAX = (1n << 64n) - 1n;