Support multiline hex literals.

[junderw]

This was merged in argotorg/solidity#7524 1 year ago.

Given the case:

string memory a = 'abc' 'def'
   'ghi'     'jkl';

string memory b = 'abcdefghijkl';

bytes memory c = hex'dead' hex'beef'
     hex'deadbe' hex'ef';

bytes memory d = hex'deadbeefdeadbeef';

a == b and c == d in this case. line breaks and spaces can be in between each section.

It makes code readability much easier.

We use prettier, so doing this breaks formatting for us.

[junderw]

It looks like solidity works even with comments in between the sections:

string memory a = 'abc' /* test */ 'def'
  // test
   'ghi'     'jkl';

string memory b = 'abcdefghijkl';

bytes memory c = hex'dead' /* test */ hex'beef'
  // test
     hex'deadbe' hex'ef';

bytes memory d = hex'deadbeefdeadbeef';

These all compile and work fine.

[junderw]

Looks like StringLiterals are supported for multiline/spaces.

If you could add support to HexLiterals in a similar manner I would appreciate it. Thanks.

[fvictorio]

Fixed in 0.9.1.