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[Qemu-devel] [PULL 27/32] qapi: add #if conditions to generated code mem


From: Markus Armbruster
Subject: [Qemu-devel] [PULL 27/32] qapi: add #if conditions to generated code members
Date: Thu, 13 Dec 2018 19:43:35 +0100

From: Marc-André Lureau <address@hidden>

Wrap generated enum and struct members and their supporting code with

We do enum and struct in a single patch because union tag enum and the
associated variants tie them together, and dealing with that to split
the patch doesn't seem worthwhile.

Signed-off-by: Marc-André Lureau <address@hidden>
Reviewed-by: Markus Armbruster <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Markus Armbruster <address@hidden>
---
 scripts/qapi/common.py     |  4 ++++
 scripts/qapi/introspect.py | 14 ++++++++++----
 scripts/qapi/types.py      |  4 ++++
 scripts/qapi/visit.py      |  6 ++++++
 4 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py
index 17707b6de7..8c2d97369e 100644
--- a/scripts/qapi/common.py
+++ b/scripts/qapi/common.py
@@ -2078,11 +2078,13 @@ const QEnumLookup %(c_name)s_lookup = {
 ''',
                 c_name=c_name(name))
     for m in members:
+        ret += gen_if(m.ifcond)
         index = c_enum_const(name, m.name, prefix)
         ret += mcgen('''
         [%(index)s] = "%(name)s",
 ''',
                      index=index, name=m.name)
+        ret += gen_endif(m.ifcond)
 
     ret += mcgen('''
     },
@@ -2104,10 +2106,12 @@ typedef enum %(c_name)s {
                 c_name=c_name(name))
 
     for m in enum_members:
+        ret += gen_if(m.ifcond)
         ret += mcgen('''
     %(c_enum)s,
 ''',
                      c_enum=c_enum_const(name, m.name, prefix))
+        ret += gen_endif(m.ifcond)
 
     ret += mcgen('''
 } %(c_name)s;
diff --git a/scripts/qapi/introspect.py b/scripts/qapi/introspect.py
index 417625d54b..f7f2ca07e4 100644
--- a/scripts/qapi/introspect.py
+++ b/scripts/qapi/introspect.py
@@ -162,6 +162,8 @@ const QLitObject %(c_name)s = %(c_string)s;
         ret = {'name': member.name, 'type': self._use_type(member.type)}
         if member.optional:
             ret['default'] = None
+        if member.ifcond:
+            ret = (ret, {'if': member.ifcond})
         return ret
 
     def _gen_variants(self, tag_name, variants):
@@ -169,14 +171,17 @@ const QLitObject %(c_name)s = %(c_string)s;
                 'variants': [self._gen_variant(v) for v in variants]}
 
     def _gen_variant(self, variant):
-        return {'case': variant.name, 'type': self._use_type(variant.type)}
+        return ({'case': variant.name, 'type': self._use_type(variant.type)},
+                {'if': variant.ifcond})
 
     def visit_builtin_type(self, name, info, json_type):
         self._gen_qlit(name, 'builtin', {'json-type': json_type}, [])
 
     def visit_enum_type(self, name, info, ifcond, members, prefix):
         self._gen_qlit(name, 'enum',
-                       {'values': [m.name for m in members]}, ifcond)
+                       {'values':
+                        [(m.name, {'if': m.ifcond}) for m in members]},
+                       ifcond)
 
     def visit_array_type(self, name, info, ifcond, element_type):
         element = self._use_type(element_type)
@@ -192,8 +197,9 @@ const QLitObject %(c_name)s = %(c_string)s;
 
     def visit_alternate_type(self, name, info, ifcond, variants):
         self._gen_qlit(name, 'alternate',
-                       {'members': [{'type': self._use_type(m.type)}
-                                    for m in variants.variants]}, ifcond)
+                       {'members': [
+                           ({'type': self._use_type(m.type)}, {'if': m.ifcond})
+                           for m in variants.variants]}, ifcond)
 
     def visit_command(self, name, info, ifcond, arg_type, ret_type, gen,
                       success_response, boxed, allow_oob, allow_preconfig):
diff --git a/scripts/qapi/types.py b/scripts/qapi/types.py
index e8d22c5081..62d4cf9f95 100644
--- a/scripts/qapi/types.py
+++ b/scripts/qapi/types.py
@@ -43,6 +43,7 @@ struct %(c_name)s {
 def gen_struct_members(members):
     ret = ''
     for memb in members:
+        ret += gen_if(memb.ifcond)
         if memb.optional:
             ret += mcgen('''
     bool has_%(c_name)s;
@@ -52,6 +53,7 @@ def gen_struct_members(members):
     %(c_type)s %(c_name)s;
 ''',
                      c_type=memb.type.c_type(), c_name=c_name(memb.name))
+        ret += gen_endif(memb.ifcond)
     return ret
 
 
@@ -131,11 +133,13 @@ def gen_variants(variants):
     for var in variants.variants:
         if var.type.name == 'q_empty':
             continue
+        ret += gen_if(var.ifcond)
         ret += mcgen('''
         %(c_type)s %(c_name)s;
 ''',
                      c_type=var.type.c_unboxed_type(),
                      c_name=c_name(var.name))
+        ret += gen_endif(var.ifcond)
 
     ret += mcgen('''
     } u;
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py
index 24f85a2e85..82eab72b21 100644
--- a/scripts/qapi/visit.py
+++ b/scripts/qapi/visit.py
@@ -54,6 +54,7 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s 
*obj, Error **errp)
                      c_type=base.c_name())
 
     for memb in members:
+        ret += gen_if(memb.ifcond)
         if memb.optional:
             ret += mcgen('''
     if (visit_optional(v, "%(name)s", &obj->has_%(c_name)s)) {
@@ -73,6 +74,7 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s 
*obj, Error **errp)
             ret += mcgen('''
     }
 ''')
+        ret += gen_endif(memb.ifcond)
 
     if variants:
         ret += mcgen('''
@@ -84,6 +86,7 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s 
*obj, Error **errp)
             case_str = c_enum_const(variants.tag_member.type.name,
                                     var.name,
                                     variants.tag_member.type.prefix)
+            ret += gen_if(var.ifcond)
             if var.type.name == 'q_empty':
                 # valid variant and nothing to do
                 ret += mcgen('''
@@ -100,6 +103,7 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s 
*obj, Error **errp)
                              case=case_str,
                              c_type=var.type.c_name(), c_name=c_name(var.name))
 
+            ret += gen_endif(var.ifcond)
         ret += mcgen('''
     default:
         abort();
@@ -190,6 +194,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, 
%(c_name)s **obj, Error
                 c_name=c_name(name))
 
     for var in variants.variants:
+        ret += gen_if(var.ifcond)
         ret += mcgen('''
     case %(case)s:
 ''',
@@ -217,6 +222,7 @@ void visit_type_%(c_name)s(Visitor *v, const char *name, 
%(c_name)s **obj, Error
         ret += mcgen('''
         break;
 ''')
+        ret += gen_endif(var.ifcond)
 
     ret += mcgen('''
     case QTYPE_NONE:
-- 
2.17.2




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