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[Qemu-devel] [PATCH RFC v2 06/47] qapi: Drop unused and useless paramete


From: Markus Armbruster
Subject: [Qemu-devel] [PATCH RFC v2 06/47] qapi: Drop unused and useless parameters and variables
Date: Wed, 1 Jul 2015 22:21:54 +0200

gen_sync_call()'s parameter indent is useless: gen_sync_call() uses it
only as optional argument for push_indent() and pop_indent(), their
default is four, and gen_sync_call()'s only caller passes four.

gen_visitor_input_containers_decl()'s parameter obj is always
"QOBJECT(args)".

Signed-off-by: Markus Armbruster <address@hidden>
---
 scripts/qapi-commands.py | 27 +++++++++++++--------------
 scripts/qapi-event.py    |  1 -
 scripts/qapi-types.py    |  1 -
 scripts/qapi-visit.py    | 47 ++++++++++++++++++++++-------------------------
 scripts/qapi.py          |  1 -
 5 files changed, 35 insertions(+), 42 deletions(-)

diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index ce51408..69029f5 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -38,7 +38,7 @@ if (local_err) {
 ''')
     return ''
 
-def gen_sync_call(name, args, ret_type, indent=0):
+def gen_sync_call(name, args, ret_type):
     ret = ""
     arglist=""
     retval=""
@@ -48,7 +48,7 @@ def gen_sync_call(name, args, ret_type, indent=0):
         if optional:
             arglist += "has_%s, " % c_name(argname)
         arglist += "%s, " % (c_name(argname))
-    push_indent(indent)
+    push_indent()
     ret = mcgen('''
 %(retval)sqmp_%(name)s(%(args)s&local_err);
 
@@ -60,7 +60,7 @@ def gen_sync_call(name, args, ret_type, indent=0):
 %(marshal_output_call)s
 ''',
                             marshal_output_call=gen_marshal_output_call(name, 
ret_type)).rstrip()
-    pop_indent(indent)
+    pop_indent()
     return ret.rstrip()
 
 
@@ -69,17 +69,16 @@ def gen_marshal_output_call(name, ret_type):
         return ""
     return "qmp_marshal_output_%s(retval, ret, &local_err);" % c_name(name)
 
-def gen_visitor_input_containers_decl(args, obj):
+def gen_visitor_input_containers_decl(args):
     ret = ""
 
     push_indent()
     if len(args) > 0:
         ret += mcgen('''
-QmpInputVisitor *mi = qmp_input_visitor_new_strict(%(obj)s);
+QmpInputVisitor *mi = qmp_input_visitor_new_strict(QOBJECT(args));
 QapiDeallocVisitor *md;
 Visitor *v;
-''',
-                     obj=obj)
+''')
     pop_indent()
 
     return ret.rstrip()
@@ -161,7 +160,7 @@ qapi_dealloc_visitor_cleanup(md);
     pop_indent()
     return ret.rstrip()
 
-def gen_marshal_output(name, args, ret_type, middle_mode):
+def gen_marshal_output(name, ret_type):
     if not ret_type:
         return ""
 
@@ -194,14 +193,14 @@ out:
 
     return ret
 
-def gen_marshal_input_decl(name, args, ret_type, middle_mode):
+def gen_marshal_input_decl(name, middle_mode):
     ret = 'void qmp_marshal_input_%s(QDict *args, QObject **ret, Error 
**errp)' % c_name(name)
     if not middle_mode:
         ret = "static " + ret
     return ret
 
 def gen_marshal_input(name, args, ret_type, middle_mode):
-    hdr = gen_marshal_input_decl(name, args, ret_type, middle_mode)
+    hdr = gen_marshal_input_decl(name, middle_mode)
 
     ret = mcgen('''
 %(header)s
@@ -228,7 +227,7 @@ def gen_marshal_input(name, args, ret_type, middle_mode):
 %(visitor_input_block)s
 
 ''',
-                     
visitor_input_containers_decl=gen_visitor_input_containers_decl(args, 
"QOBJECT(args)"),
+                     
visitor_input_containers_decl=gen_visitor_input_containers_decl(args),
                      visitor_input_vars_decl=gen_visitor_input_vars_decl(args),
                      visitor_input_block=gen_visitor_input_block(args))
     else:
@@ -240,7 +239,7 @@ def gen_marshal_input(name, args, ret_type, middle_mode):
     ret += mcgen('''
 %(sync_call)s
 ''',
-                 sync_call=gen_sync_call(name, args, ret_type, indent=4))
+                 sync_call=gen_sync_call(name, args, ret_type))
     if re.search('^ *goto out\\;', ret, re.MULTILINE):
         ret += mcgen('''
 
@@ -360,11 +359,11 @@ for cmd in commands:
     ret = generate_command_decl(cmd['command'], arglist, ret_type) + "\n"
     fdecl.write(ret)
     if ret_type:
-        ret = gen_marshal_output(cmd['command'], arglist, ret_type, 
middle_mode) + "\n"
+        ret = gen_marshal_output(cmd['command'], ret_type) + "\n"
         fdef.write(ret)
 
     if middle_mode:
-        fdecl.write('%s;\n' % gen_marshal_input_decl(cmd['command'], arglist, 
ret_type, middle_mode))
+        fdecl.write('%s;\n' % gen_marshal_input_decl(cmd['command'], 
middle_mode))
 
     ret = gen_marshal_input(cmd['command'], arglist, ret_type, middle_mode) + 
"\n"
     fdef.write(ret)
diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py
index cc74f4d..88b0620 100644
--- a/scripts/qapi-event.py
+++ b/scripts/qapi-event.py
@@ -199,7 +199,6 @@ const char *%(event_enum_name)s_lookup[] = {
 ''',
                 event_enum_name = event_enum_name)
 
-    i = 0
     for string in event_enum_strings:
         ret += mcgen('''
     "%(string)s",
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
index e6eb4b6..4902440 100644
--- a/scripts/qapi-types.py
+++ b/scripts/qapi-types.py
@@ -108,7 +108,6 @@ def generate_enum_lookup(name, values):
 const char * const %(name)s_lookup[] = {
 ''',
                 name=c_name(name))
-    i = 0
     for value in values:
         index = c_enum_const(name, value)
         ret += mcgen('''
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 5b99336..e8ee268 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -40,7 +40,6 @@ static void visit_type_implicit_%(c_type)s(Visitor *m, 
%(c_type)s **obj, Error *
                  c_type=type_name(type))
 
 def generate_visit_struct_fields(name, members, base = None):
-    substructs = []
     ret = ''
 
     if base:
@@ -103,7 +102,7 @@ out:
     return ret
 
 
-def generate_visit_struct_body(name, members):
+def generate_visit_struct_body(name):
     ret = mcgen('''
     Error *err = NULL;
 
@@ -135,14 +134,14 @@ void visit_type_%(name)s(Visitor *m, %(name)s **obj, 
const char *name, Error **e
 ''',
                  name=c_name(name))
 
-    ret += generate_visit_struct_body(name, members)
+    ret += generate_visit_struct_body(name)
 
     ret += mcgen('''
 }
 ''')
     return ret
 
-def generate_visit_list(name, members):
+def generate_visit_list(name):
     return mcgen('''
 
 void visit_type_%(name)sList(Visitor *m, %(name)sList **obj, const char *name, 
Error **errp)
@@ -171,7 +170,7 @@ out:
 ''',
                 name=type_name(name))
 
-def generate_visit_enum(name, members):
+def generate_visit_enum(name):
     return mcgen('''
 
 void visit_type_%(name)s(Visitor *m, %(name)s *obj, const char *name, Error 
**errp)
@@ -252,7 +251,7 @@ def generate_visit_union(expr):
     else:
         # There will always be a discriminator in the C switch code, by default
         # it is an enum type generated silently
-        ret = generate_visit_enum(name + 'Kind', members.keys())
+        ret = generate_visit_enum(name + 'Kind')
         disc_type = c_name(name) + 'Kind'
 
     if base:
@@ -340,7 +339,7 @@ out:
 
     return ret
 
-def generate_declaration(name, members, builtin_type=False):
+def generate_declaration(name, builtin_type=False):
     ret = ""
     if not builtin_type:
         name = c_name(name)
@@ -357,7 +356,7 @@ void visit_type_%(name)sList(Visitor *m, %(name)sList 
**obj, const char *name, E
 
     return ret
 
-def generate_enum_declaration(name, members):
+def generate_enum_declaration(name):
     ret = mcgen('''
 void visit_type_%(name)sList(Visitor *m, %(name)sList **obj, const char *name, 
Error **errp);
 ''',
@@ -365,7 +364,7 @@ void visit_type_%(name)sList(Visitor *m, %(name)sList 
**obj, const char *name, E
 
     return ret
 
-def generate_decl_enum(name, members):
+def generate_decl_enum(name):
     return mcgen('''
 
 void visit_type_%(name)s(Visitor *m, %(name)s *obj, const char *name, Error 
**errp);
@@ -433,7 +432,7 @@ exprs = parse_schema(input_file)
 # for built-in types in our header files and simply guard them
 fdecl.write(guardstart("QAPI_VISIT_BUILTIN_VISITOR_DECL"))
 for typename in builtin_types.keys():
-    fdecl.write(generate_declaration(typename, None, builtin_type=True))
+    fdecl.write(generate_declaration(typename, builtin_type=True))
 fdecl.write(guardend("QAPI_VISIT_BUILTIN_VISITOR_DECL"))
 
 # ...this doesn't work for cases where we link in multiple objects that
@@ -441,44 +440,42 @@ fdecl.write(guardend("QAPI_VISIT_BUILTIN_VISITOR_DECL"))
 # over these cases
 if do_builtins:
     for typename in builtin_types.keys():
-        fdef.write(generate_visit_list(typename, None))
+        fdef.write(generate_visit_list(typename))
 
 for expr in exprs:
     if expr.has_key('struct'):
         ret = generate_visit_struct(expr)
-        ret += generate_visit_list(expr['struct'], expr['data'])
+        ret += generate_visit_list(expr['struct'])
         fdef.write(ret)
 
-        ret = generate_declaration(expr['struct'], expr['data'])
+        ret = generate_declaration(expr['struct'])
         fdecl.write(ret)
     elif expr.has_key('union'):
         ret = generate_visit_union(expr)
-        ret += generate_visit_list(expr['union'], expr['data'])
+        ret += generate_visit_list(expr['union'])
         fdef.write(ret)
 
         enum_define = discriminator_find_enum_define(expr)
         ret = ""
         if not enum_define:
-            ret = generate_decl_enum('%sKind' % expr['union'],
-                                     expr['data'].keys())
-        ret += generate_declaration(expr['union'], expr['data'])
+            ret = generate_decl_enum('%sKind' % expr['union'])
+        ret += generate_declaration(expr['union'])
         fdecl.write(ret)
     elif expr.has_key('alternate'):
         ret = generate_visit_alternate(expr['alternate'], expr['data'])
-        ret += generate_visit_list(expr['alternate'], expr['data'])
+        ret += generate_visit_list(expr['alternate'])
         fdef.write(ret)
 
-        ret = generate_decl_enum('%sKind' % expr['alternate'],
-                                 expr['data'].keys())
-        ret += generate_declaration(expr['alternate'], expr['data'])
+        ret = generate_decl_enum('%sKind' % expr['alternate'])
+        ret += generate_declaration(expr['alternate'])
         fdecl.write(ret)
     elif expr.has_key('enum'):
-        ret = generate_visit_list(expr['enum'], expr['data'])
-        ret += generate_visit_enum(expr['enum'], expr['data'])
+        ret = generate_visit_list(expr['enum'])
+        ret += generate_visit_enum(expr['enum'])
         fdef.write(ret)
 
-        ret = generate_decl_enum(expr['enum'], expr['data'])
-        ret += generate_enum_declaration(expr['enum'], expr['data'])
+        ret = generate_decl_enum(expr['enum'])
+        ret += generate_enum_declaration(expr['enum'])
         fdecl.write(ret)
 
 close_output(fdef, fdecl)
diff --git a/scripts/qapi.py b/scripts/qapi.py
index ea94ce5..99e04f6 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -507,7 +507,6 @@ def check_command(expr, expr_info):
 def check_event(expr, expr_info):
     global events
     name = expr['event']
-    params = expr.get('data')
 
     if name.upper() == 'MAX':
         raise QAPIExprError(expr_info, "Event name 'MAX' cannot be created")
-- 
1.9.3




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