[Qemu-devel] [PULL 27/33] qapi: Drop one of two "simple union must not have base" checks

[Markus Armbruster]

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.

Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
 scripts/qapi.py                                   | 8 --------
 tests/qapi-schema/union-base-no-discriminator.err | 2 +-
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/scripts/qapi.py b/scripts/qapi.py
index 23c32fe..197db77 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -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.
diff --git a/tests/qapi-schema/union-base-no-discriminator.err 
b/tests/qapi-schema/union-base-no-discriminator.err
index fc8b79c..8b7a242 100644
--- a/tests/qapi-schema/union-base-no-discriminator.err
+++ b/tests/qapi-schema/union-base-no-discriminator.err
@@ -1 +1 @@
-tests/qapi-schema/union-base-no-discriminator.json:11: Union 'TestUnion' 
requires a discriminator to go along with base
+tests/qapi-schema/union-base-no-discriminator.json:11: Simple union 
'TestUnion' must not have a base
-- 
2.4.3