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[Qemu-devel] [PATCH RFC v4 04/32] qapi: New QAPISchemaVisitor
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PATCH RFC v4 04/32] qapi: New QAPISchemaVisitor |
Date: |
Thu, 3 Sep 2015 16:29:55 +0200 |
The visitor will help keeping the code generation code simple and
reasonably separated from QAPISchema details.
Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
---
scripts/qapi.py | 46 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/scripts/qapi.py b/scripts/qapi.py
index cf1436d..3e7c154 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -764,6 +764,29 @@ class QAPISchemaEntity(object):
return c_name(self.name)
def check(self, schema):
pass
+ def visit(self, visitor):
+ pass
+
+class QAPISchemaVisitor(object):
+ def visit_begin(self, schema):
+ pass
+ def visit_end(self):
+ pass
+ def visit_builtin_type(self, name, info, json_type):
+ pass
+ def visit_enum_type(self, name, info, values):
+ pass
+ def visit_array_type(self, name, info, element_type):
+ pass
+ def visit_object_type(self, name, info, base, members, variants):
+ pass
+ def visit_alternate_type(self, name, info, variants):
+ pass
+ def visit_command(self, name, info, arg_type, ret_type,
+ gen, success_response):
+ pass
+ def visit_event(self, name, info, arg_type):
+ pass
class QAPISchemaType(QAPISchemaEntity):
def c_type(self, is_param=False):
@@ -801,6 +824,8 @@ class QAPISchemaBuiltinType(QAPISchemaType):
return self.c_null_val
def json_type(self):
return self.json_type_name
+ def visit(self, visitor):
+ visitor.visit_builtin_type(self.name, self.info, self.json_type())
class QAPISchemaEnumType(QAPISchemaType):
def __init__(self, name, info, values):
@@ -816,6 +841,8 @@ class QAPISchemaEnumType(QAPISchemaType):
return c_enum_const(self.name, (self.values + ['MAX'])[0])
def json_type(self):
return 'string'
+ def visit(self, visitor):
+ visitor.visit_enum_type(self.name, self.info, self.values)
class QAPISchemaArrayType(QAPISchemaType):
def __init__(self, name, info, element_type):
@@ -828,6 +855,8 @@ class QAPISchemaArrayType(QAPISchemaType):
assert self.element_type
def json_type(self):
return 'array'
+ def visit(self, visitor):
+ visitor.visit_array_type(self.name, self.info, self.element_type)
class QAPISchemaObjectType(QAPISchemaType):
def __init__(self, name, info, base, local_members, variants):
@@ -871,6 +900,9 @@ class QAPISchemaObjectType(QAPISchemaType):
return QAPISchemaType.c_type(self)
def json_type(self):
return 'object'
+ def visit(self, visitor):
+ visitor.visit_object_type(self.name, self.info,
+ self.base, self.local_members, self.variants)
class QAPISchemaObjectTypeMember(object):
def __init__(self, name, typ, optional):
@@ -936,6 +968,8 @@ class QAPISchemaAlternateType(QAPISchemaType):
self.variants.check(schema, [], {})
def json_type(self):
return 'value'
+ def visit(self, visitor):
+ visitor.visit_alternate_type(self.name, self.info, self.variants)
class QAPISchemaCommand(QAPISchemaEntity):
def __init__(self, name, info, arg_type, ret_type, gen, success_response):
@@ -956,6 +990,10 @@ class QAPISchemaCommand(QAPISchemaEntity):
if self.ret_type_name:
self.ret_type = schema.lookup_type(self.ret_type_name)
assert isinstance(self.ret_type, QAPISchemaType)
+ def visit(self, visitor):
+ visitor.visit_command(self.name, self.info,
+ self.arg_type, self.ret_type,
+ self.gen, self.success_response)
class QAPISchemaEvent(QAPISchemaEntity):
def __init__(self, name, info, arg_type):
@@ -968,6 +1006,8 @@ class QAPISchemaEvent(QAPISchemaEntity):
self.arg_type = schema.lookup_type(self.arg_type_name)
assert isinstance(self.arg_type, QAPISchemaObjectType)
assert not self.arg_type.variants # not implemented
+ def visit(self, visitor):
+ visitor.visit_event(self.name, self.info, self.arg_type)
class QAPISchema(object):
def __init__(self, fname):
@@ -1161,6 +1201,12 @@ class QAPISchema(object):
for ent in self.entity_dict.values():
ent.check(self)
+ def visit(self, visitor):
+ visitor.visit_begin(self)
+ for name in sorted(self.entity_dict.keys()):
+ self.entity_dict[name].visit(visitor)
+ visitor.visit_end()
+
#
# Code generation helpers
#
--
2.4.3
- Re: [Qemu-devel] [PATCH RFC v4 06/32] qapi: Split up some typedefs to ease review, (continued)
- [Qemu-devel] [PATCH RFC v4 13/32] qapi: De-duplicate enum code generation, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 18/32] qapi: Replace dirty is_c_ptr() by method c_null(), Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 12/32] qapi-commands: Convert to QAPISchemaVisitor, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 09/32] Revert "qapi: Split up some typedefs to ease review", Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 15/32] qapi-event: Convert to QAPISchemaVisitor, fixing data with base, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 11/32] qapi-visit: Convert to QAPISchemaVisitor, fixing bugs, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 07/32] qapi: Generate comments to simplify splitting for review, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 04/32] qapi: New QAPISchemaVisitor,
Markus Armbruster <=
- [Qemu-devel] [PATCH RFC v4 08/32] Revert "qapi: Generate comments to simplify splitting for review", Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 14/32] qapi-event: Eliminate global variable event_enum_value, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 20/32] qapi-visit: Rearrange code a bit, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 10/32] qapi-types: Convert to QAPISchemaVisitor, fixing flat unions, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 23/32] qapi: De-duplicate parameter list generation, Markus Armbruster, 2015/09/03
- [Qemu-devel] [PATCH RFC v4 02/32] qapi: New QAPISchema intermediate reperesentation, Markus Armbruster, 2015/09/03