path: root/tpm.c
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authorEric Blake <eblake@redhat.com>2015-11-18 01:52:56 -0700
committerMarkus Armbruster <armbru@redhat.com>2015-12-17 08:21:27 +0100
commit59a92feedc6927e0e1ff87fdaccfb4dd42ad4c84 (patch)
treecd0b28944b4e37051feab55ce0b397a0f97348ea /tpm.c
parent5be5b7764f83cf9a535a22ecbd33710daf1fe210 (diff)
qapi: Tighten the regex on valid names
We already documented that qapi names should match specific patterns (such as starting with a letter unless it was an enum value or a downstream extension). Tighten that from a suggestion into a hard requirement, which frees up names beginning with a single underscore for qapi internal usage. The tighter regex doesn't forbid everything insane that a user could provide (for example, a user could name a type 'Foo-lookup' to collide with the generated 'Foo_lookup[]' for an enum 'Foo'), but does a good job at protecting the most obvious uses, and also happens to reserve single leading underscore for later use. The handling of enum values starting with a digit is tricky: commit 9fb081e introduced a subtle bug by using c_name() on a munged value, which would allow an enum to include the member 'q-int' in spite of our reservation. Furthermore, munging with a leading '_' would fail our tighter regex. So fix it by only munging for leading digits (which are never ticklish in c_name()) and by using a different prefix (I picked 'D', although any letter should do). Add new tests, reserved-member-underscore and reserved-enum-q, to demonstrate the tighter checking. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1447836791-369-22-git-send-email-eblake@redhat.com> Message-Id: <1447883135-18020-1-git-send-email-eblake@redhat.com> [Eric's fixup squashed in] Signed-off-by: Markus Armbruster <armbru@redhat.com>
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