diff options
| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2018-12-13 16:37:15 +0400 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2018-12-13 19:20:11 +0100 |
| commit | ccadd6bcba3bef6c1954f533b10224fb3db7148e (patch) | |
| tree | d59e97424ade573166cc819f24c5ed8303e6aa6d /docs/devel | |
| parent | 87adbbffd4b03c68d039ce0be5dcfde38a6a7b1b (diff) | |
qapi: Add 'if' to implicit struct members
The generated code is for now *unconditional*. Later patches generate
the conditionals.
Note that union discriminators may not have 'if' conditionals.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181213123724.4866-14-marcandre.lureau@redhat.com>
Message-Id: <20181213123724.4866-15-marcandre.lureau@redhat.com>
[Patches squashed, commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'docs/devel')
| -rw-r--r-- | docs/devel/qapi-code-gen.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/devel/qapi-code-gen.txt b/docs/devel/qapi-code-gen.txt index 7ba9066eac..3895808b4a 100644 --- a/docs/devel/qapi-code-gen.txt +++ b/docs/devel/qapi-code-gen.txt @@ -752,6 +752,16 @@ gets its generated code guarded like this: #endif /* defined(HAVE_BAR) */ #endif /* defined(CONFIG_FOO) */ +Where a member can be defined with a single string value for its type, +it is also possible to supply a dictionary instead with both 'type' +and 'if' keys. (TODO: union and alternate) + +Example: a conditional 'bar' member + +{ 'struct': 'IfStruct', 'data': + { 'foo': 'int', + 'bar': { 'type': 'int', 'if': 'defined(IFCOND)'} } } + An enum value can be replaced by a dictionary with a 'name' and a 'if' key. |