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qapi: Consistent generated code: prefer common indentation

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We had some pointless differences in the generated code for visit,
command marshalling, and events; unifying them makes it easier for
future patches to consolidate to common helper functions.
This is one patch of a series to clean up these differences.

This patch adjusts gen_visit_union() to use the same indentation
as other functions, namely, by jumping early to the error label
if the object was not set rather than placing the rest of the
body inside an if for when it is set.

No change in semantics to the generated code.

Backports commit e36c714e6aad7c9266132350833e2f263f6d8874 from qemu
This commit is contained in:
Eric Blake 2018-02-19 18:26:12 -05:00 committed by Lioncash
parent 53c2c709af
commit ec89e19b30
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 27 additions and 26 deletions
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5
qemu/scripts/qapi-visit.py
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@ -262,7 +262,9 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj, const char *name, Error
if (err) {
goto out;
}
if (*obj) {
if (!*obj) {
goto out_obj;
}
''',
c_name=c_name(name), name=name)
@ -331,7 +333,6 @@ out_obj:
visit_end_union(v, !!(*obj)->data, &err);
error_propagate(errp, err);
err = NULL;
}
visit_end_struct(v, &err);
out:
error_propagate(errp, err);