qapi: add 'if' to enum members

QAPISchemaMember gains .ifcond for enum members: inherited classes,
such as QAPISchemaObjectTypeMember, will thus have an ifcond member
after this (those different types will also use the .ifcond to store
the condition and generate conditional code in the following patches).

The generated code remains unconditional for now. Later patches
generate the conditionals.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181213123724.4866-10-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

8 files changed, 12 insertions, 3 deletions

diff --git a/tests/qapi-schema/enum-dict-member-unknown.err b/tests/qapi-schema/enum-dict-member-unknown.err
index 76bd0471db..2aae618be0 100644
--- a/tests/qapi-schema/enum-dict-member-unknown.err
+++ b/tests/qapi-schema/enum-dict-member-unknown.err
@@ -1,2 +1,2 @@
 tests/qapi-schema/enum-dict-member-unknown.json:2: Unknown key 'bad-key' in dictionary member of enum 'MyEnum'
-Valid keys are 'name'.
+Valid keys are 'if', 'name'.
diff --git a/tests/qapi-schema/enum-if-invalid.err b/tests/qapi-schema/enum-if-invalid.err
new file mode 100644
index 0000000000..54c3cf887b
--- /dev/null
+++ b/tests/qapi-schema/enum-if-invalid.err
@@ -0,0 +1 @@
+tests/qapi-schema/enum-if-invalid.json:2: 'if' condition must be a string or a list of strings
diff --git a/tests/qapi-schema/enum-if-invalid.exit b/tests/qapi-schema/enum-if-invalid.exit
new file mode 100644
index 0000000000..d00491fd7e
--- /dev/null
+++ b/tests/qapi-schema/enum-if-invalid.exit
@@ -0,0 +1 @@
+1
diff --git a/tests/qapi-schema/enum-if-invalid.json b/tests/qapi-schema/enum-if-invalid.json
new file mode 100644
index 0000000000..60bd0ef1d7
--- /dev/null
+++ b/tests/qapi-schema/enum-if-invalid.json
@@ -0,0 +1,3 @@
+# check invalid 'if' type
+{ 'enum': 'TestIfEnum', 'data':
+  [ 'foo', { 'name' : 'bar', 'if': { 'val': 'foo' } } ] }
diff --git a/tests/qapi-schema/enum-if-invalid.out b/tests/qapi-schema/enum-if-invalid.out
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/tests/qapi-schema/enum-if-invalid.out
diff --git a/tests/qapi-schema/qapi-schema-test.json b/tests/qapi-schema/qapi-schema-test.json
index 15388ae9a4..8bfaf5aedd 100644
--- a/tests/qapi-schema/qapi-schema-test.json
+++ b/tests/qapi-schema/qapi-schema-test.json
@@ -204,7 +204,8 @@
 { 'struct': 'TestIfStruct', 'data': { 'foo': 'int' },
   'if': 'defined(TEST_IF_STRUCT)' }
 
-{ 'enum': 'TestIfEnum', 'data': [ 'foo', 'bar' ],
+{ 'enum': 'TestIfEnum', 'data':
+  [ 'foo', { 'name' : 'bar', 'if': 'defined(TEST_IF_ENUM_BAR)' } ],
   'if': 'defined(TEST_IF_ENUM)' }
 
 { 'union': 'TestIfUnion', 'data': { 'foo': 'TestStruct' },
@@ -219,7 +220,7 @@
 { 'command': 'TestIfAlternateCmd', 'data': { 'alt_cmd_arg': 'TestIfAlternate' },
   'if': 'defined(TEST_IF_ALT)' }
 
-{ 'command': 'TestIfCmd', 'data': { 'foo': 'TestIfStruct' },
+{ 'command': 'TestIfCmd', 'data': { 'foo': 'TestIfStruct', 'bar': 'TestIfEnum' },
   'returns': 'UserDefThree',
   'if': ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)'] }
 
diff --git a/tests/qapi-schema/qapi-schema-test.out b/tests/qapi-schema/qapi-schema-test.out
index 06e80e5b04..d90d987651 100644
--- a/tests/qapi-schema/qapi-schema-test.out
+++ b/tests/qapi-schema/qapi-schema-test.out
@@ -272,6 +272,7 @@ object TestIfStruct
 enum TestIfEnum
     member foo
     member bar
+        if ['defined(TEST_IF_ENUM_BAR)']
     if ['defined(TEST_IF_ENUM)']
 object q_obj_TestStruct-wrapper
     member data: TestStruct optional=False
@@ -302,6 +303,7 @@ command TestIfAlternateCmd q_obj_TestIfAlternateCmd-arg -> None
     if ['defined(TEST_IF_ALT)']
 object q_obj_TestIfCmd-arg
     member foo: TestIfStruct optional=False
+    member bar: TestIfEnum optional=False
     if ['defined(TEST_IF_CMD)', 'defined(TEST_IF_STRUCT)']
 command TestIfCmd q_obj_TestIfCmd-arg -> UserDefThree
    gen=True success_response=True boxed=False oob=False preconfig=False
diff --git a/tests/qapi-schema/test-qapi.py b/tests/qapi-schema/test-qapi.py
index 641a18f06d..aadf252d9d 100644
--- a/tests/qapi-schema/test-qapi.py
+++ b/tests/qapi-schema/test-qapi.py
@@ -29,6 +29,7 @@ class QAPISchemaTestVisitor(QAPISchemaVisitor):
             print('    prefix %s' % prefix)
         for m in members:
             print('    member %s' % m.name)
+            self._print_if(m.ifcond, indent=8)
         self._print_if(ifcond)
 
     def visit_object_type(self, name, info, ifcond, base, members, variants):