tree 2b51ebd314769c0542b8279b5ecdb7a0af254787
parent 202c83d334c09eb7959a2dbd8931878870c6b1e6
author Sam Rawlins <srawlins@google.com> 1608058819 -0800
committer GitHub <noreply@github.com> 1608058819 -0800
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsBcBAABCAAQBQJf2QfDCRBK7hj4Ov3rIwAAdHIIAJjUdvMOwrtk1trJetoIelif
 KkbXPBJaNFd9lPLCbSlrg+/X4TMdqD6lS1/u1vBb1G2E2nyvdQOYFWoo6cA1k9aR
 Io7n13x6npqhCRPPCRpdY9bLmVHuzFcmJeKFQ/zTNgPy5hoRCWj7jZ294+rX8KoM
 xbcfydkYS84yRxXJp7f43lO3tWVI3XE0eKp0M9zTcTsosw/Y5VQe+t2SzbYYrIG5
 lDHjoxmd7vxZfPQlY6b/pXLdpry+UFPWkkWVZYm5mmZuYylQV9x2l5zkqAjMUg3Q
 mcnSEWRCJIARZk9slZMvR5y4G6wLwcwKPtagXHCOqzUyXpm1h/u9ER7a90C5w6s=
 =DyEr
 -----END PGP SIGNATURE-----
 

Null safe API (#347)

Migrate API to null safety.

This does not include some files in bin/, test/, and tool/:

* bin/markdown.dart requires package:args, which has not published a null safe release.
* tool/stats.dart requires package:args.
* tool/stats_lib.dart requires package:html, which has not published a null safe release.
* tool/dartdoc-compare.dart requires package:args.
* test/util.dart requires package:io, which has not published a null safe release.
* test/markdown_test.dart, test/vesion.dart import test/util.dart.

Most APIs upgraded to null safety very smoothly. Very clean change.