qapi: Drop one of two "simple union must not have base" checks

The first check ensures the second one can't trigger. Drop the first
one, because the second one is in a more logical place, and emits a
nicer error message.

Backports commit 65fbe125451da9421070ab03944c9600a264eefc from qemu
This commit is contained in:
Markus Armbruster 2018-02-19 16:29:56 -05:00 committed by Lioncash
parent 46cf5ed6ae
commit 16619a738e
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@ -526,14 +526,6 @@ def check_union(expr, expr_info):
members = expr['data']
values = { 'MAX': '(automatic)' }
# If the object has a member 'base', its value must name a struct,
# and there must be a discriminator.
if base is not None:
if discriminator is None:
raise QAPIExprError(expr_info,
"Union '%s' requires a discriminator to go "
"along with base" %name)
# Two types of unions, determined by discriminator.
# With no discriminator it is a simple union.