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[Qemu-devel] [PATCH RFC 16/21] qapi/types qapi/visit: Make visitors use
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PATCH RFC 16/21] qapi/types qapi/visit: Make visitors use QAPIGen more |
Date: |
Fri, 2 Feb 2018 14:03:31 +0100 |
The conversion is rather shallow so far: most of the output
accumulation is not converted. Take the next step: convert output
accumulation in QAPISchemaGenTypeVisitor and
QAPISchemaGenVisitVisitor. Helper functions outside these classes are
not converted.
Signed-off-by: Markus Armbruster <address@hidden>
---
scripts/qapi/types.py | 83 +++++++++++++++++++++++----------------------------
scripts/qapi/visit.py | 83 +++++++++++++++++++++++----------------------------
2 files changed, 74 insertions(+), 92 deletions(-)
diff --git a/scripts/qapi/types.py b/scripts/qapi/types.py
index b2095120e0..eeffcbf32c 100644
--- a/scripts/qapi/types.py
+++ b/scripts/qapi/types.py
@@ -168,35 +168,44 @@ void qapi_free_%(c_name)s(%(c_name)s *obj)
class QAPISchemaGenTypeVisitor(QAPISchemaVisitor):
- def __init__(self, opt_builtins):
+ def __init__(self, opt_builtins, prefix):
self._opt_builtins = opt_builtins
- self.decl = None
- self.defn = None
- self._fwdecl = None
- self._btin = None
+ self._prefix = prefix
+ blurb = ' * Schema-defined QAPI types'
+ self._genc = QAPIGenC(blurb, __doc__)
+ self._genh = QAPIGenH(blurb, __doc__)
+ self._genc.preamble(mcgen('''
+#include "qemu/osdep.h"
+#include "qapi/dealloc-visitor.h"
+#include "%(prefix)sqapi-types.h"
+#include "%(prefix)sqapi-visit.h"
+''',
+ prefix=prefix))
+ self._genh.preamble(mcgen('''
+#include "qapi/util.h"
+'''))
+ self._btin = '\n' + guardstart('QAPI_TYPES_BUILTIN')
+
+ def write(self, output_dir):
+ self._genc.write(output_dir, self._prefix + 'qapi-types.c')
+ self._genh.write(output_dir, self._prefix + 'qapi-types.h')
def visit_begin(self, schema):
# gen_object() is recursive, ensure it doesn't visit the empty type
objects_seen.add(schema.the_empty_object_type.name)
- self.decl = ''
- self.defn = ''
- self._fwdecl = ''
- self._btin = '\n' + guardstart('QAPI_TYPES_BUILTIN')
def visit_end(self):
- self.decl = self._fwdecl + self.decl
- self._fwdecl = None
# To avoid header dependency hell, we always generate
# declarations for built-in types in our header files and
# simply guard them. See also opt_builtins (command line
# option -b).
self._btin += guardend('QAPI_TYPES_BUILTIN')
- self.decl = self._btin + self.decl
+ self._genh.preamble(self._btin)
self._btin = None
def _gen_type_cleanup(self, name):
- self.decl += gen_type_cleanup_decl(name)
- self.defn += gen_type_cleanup(name)
+ self._genh.body(gen_type_cleanup_decl(name))
+ self._genc.body(gen_type_cleanup(name))
def visit_enum_type(self, name, info, values, prefix):
# Special case for our lone builtin enum type
@@ -204,10 +213,10 @@ class QAPISchemaGenTypeVisitor(QAPISchemaVisitor):
if not info:
self._btin += gen_enum(name, values, prefix)
if self._opt_builtins:
- self.defn += gen_enum_lookup(name, values, prefix)
+ self._genc.body(gen_enum_lookup(name, values, prefix))
else:
- self._fwdecl += gen_enum(name, values, prefix)
- self.defn += gen_enum_lookup(name, values, prefix)
+ self._genh.preamble(gen_enum(name, values, prefix))
+ self._genc.body(gen_enum_lookup(name, values, prefix))
def visit_array_type(self, name, info, element_type):
if isinstance(element_type, QAPISchemaBuiltinType):
@@ -215,20 +224,20 @@ class QAPISchemaGenTypeVisitor(QAPISchemaVisitor):
self._btin += gen_array(name, element_type)
self._btin += gen_type_cleanup_decl(name)
if self._opt_builtins:
- self.defn += gen_type_cleanup(name)
+ self._genc.body(gen_type_cleanup(name))
else:
- self._fwdecl += gen_fwd_object_or_array(name)
- self.decl += gen_array(name, element_type)
+ self._genh.preamble(gen_fwd_object_or_array(name))
+ self._genh.body(gen_array(name, element_type))
self._gen_type_cleanup(name)
def visit_object_type(self, name, info, base, members, variants):
# Nothing to do for the special empty builtin
if name == 'q_empty':
return
- self._fwdecl += gen_fwd_object_or_array(name)
- self.decl += gen_object(name, base, members, variants)
+ self._genh.preamble(gen_fwd_object_or_array(name))
+ self._genh.body(gen_object(name, base, members, variants))
if base and not base.is_implicit():
- self.decl += gen_upcast(name, base)
+ self._genh.body(gen_upcast(name, base))
# TODO Worth changing the visitor signature, so we could
# directly use rather than repeat type.is_implicit()?
if not name.startswith('q_'):
@@ -236,31 +245,13 @@ class QAPISchemaGenTypeVisitor(QAPISchemaVisitor):
self._gen_type_cleanup(name)
def visit_alternate_type(self, name, info, variants):
- self._fwdecl += gen_fwd_object_or_array(name)
- self.decl += gen_object(name, None, [variants.tag_member], variants)
+ self._genh.preamble(gen_fwd_object_or_array(name))
+ self._genh.body(gen_object(name, None,
+ [variants.tag_member], variants))
self._gen_type_cleanup(name)
def gen_types(schema, output_dir, prefix, opt_builtins):
- blurb = ' * Schema-defined QAPI types'
- genc = QAPIGenC(blurb, __doc__)
- genh = QAPIGenH(blurb, __doc__)
-
- genc.body(mcgen('''
-#include "qemu/osdep.h"
-#include "qapi/dealloc-visitor.h"
-#include "%(prefix)sqapi-types.h"
-#include "%(prefix)sqapi-visit.h"
-''',
- prefix=prefix))
-
- genh.body(mcgen('''
-#include "qapi/util.h"
-'''))
-
- vis = QAPISchemaGenTypeVisitor(opt_builtins)
+ vis = QAPISchemaGenTypeVisitor(opt_builtins, prefix)
schema.visit(vis)
- genc.body(vis.defn)
- genh.body(vis.decl)
- genc.write(output_dir, prefix + 'qapi-types.c')
- genh.write(output_dir, prefix + 'qapi-types.h')
+ vis.write(output_dir)
diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py
index 80c0b85f8c..ee1a849574 100644
--- a/scripts/qapi/visit.py
+++ b/scripts/qapi/visit.py
@@ -264,24 +264,38 @@ out:
class QAPISchemaGenVisitVisitor(QAPISchemaVisitor):
- def __init__(self, opt_builtins):
+ def __init__(self, opt_builtins, prefix):
self._opt_builtins = opt_builtins
- self.decl = None
- self.defn = None
- self._btin = None
-
- def visit_begin(self, schema):
- self.decl = ''
- self.defn = ''
+ self._prefix = prefix
+ blurb = ' * Schema-defined QAPI visitors'
+ self._genc = QAPIGenC(blurb, __doc__)
+ self._genh = QAPIGenH(blurb, __doc__)
+ self._genc.preamble(mcgen('''
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "qapi/error.h"
+#include "%(prefix)sqapi-visit.h"
+''',
+ prefix=prefix))
+ self._genh.preamble(mcgen('''
+#include "qapi/visitor.h"
+#include "qapi/qmp/qerror.h"
+#include "%(prefix)sqapi-types.h"
+''',
+ prefix=prefix))
self._btin = guardstart('QAPI_VISIT_BUILTIN')
+ def write(self, output_dir):
+ self._genc.write(output_dir, self._prefix + 'qapi-visit.c')
+ self._genh.write(output_dir, self._prefix + 'qapi-visit.h')
+
def visit_end(self):
# To avoid header dependency hell, we always generate
# declarations for built-in types in our header files and
# simply guard them. See also opt_builtins (command line
# option -b).
self._btin += guardend('QAPI_VISIT_BUILTIN')
- self.decl = self._btin + self.decl
+ self._genh.preamble(self._btin)
self._btin = None
def visit_enum_type(self, name, info, values, prefix):
@@ -290,10 +304,10 @@ class QAPISchemaGenVisitVisitor(QAPISchemaVisitor):
if not info:
self._btin += gen_visit_decl(name, scalar=True)
if self._opt_builtins:
- self.defn += gen_visit_enum(name)
+ self._genc.body(gen_visit_enum(name))
else:
- self.decl += gen_visit_decl(name, scalar=True)
- self.defn += gen_visit_enum(name)
+ self._genh.body(gen_visit_decl(name, scalar=True))
+ self._genc.body(gen_visit_enum(name))
def visit_array_type(self, name, info, element_type):
decl = gen_visit_decl(name)
@@ -301,53 +315,30 @@ class QAPISchemaGenVisitVisitor(QAPISchemaVisitor):
if isinstance(element_type, QAPISchemaBuiltinType):
self._btin += decl
if self._opt_builtins:
- self.defn += defn
+ self._genc.body(defn)
else:
- self.decl += decl
- self.defn += defn
+ self._genh.body(decl)
+ self._genc.body(defn)
def visit_object_type(self, name, info, base, members, variants):
# Nothing to do for the special empty builtin
if name == 'q_empty':
return
- self.decl += gen_visit_members_decl(name)
- self.defn += gen_visit_object_members(name, base, members, variants)
+ self._genh.body(gen_visit_members_decl(name))
+ self._genc.body(gen_visit_object_members(name, base, members,
variants))
# TODO Worth changing the visitor signature, so we could
# directly use rather than repeat type.is_implicit()?
if not name.startswith('q_'):
# only explicit types need an allocating visit
- self.decl += gen_visit_decl(name)
- self.defn += gen_visit_object(name, base, members, variants)
+ self._genh.body(gen_visit_decl(name))
+ self._genc.body(gen_visit_object(name, base, members, variants))
def visit_alternate_type(self, name, info, variants):
- self.decl += gen_visit_decl(name)
- self.defn += gen_visit_alternate(name, variants)
+ self._genh.body(gen_visit_decl(name))
+ self._genc.body(gen_visit_alternate(name, variants))
def gen_visit(schema, output_dir, prefix, opt_builtins):
- blurb = ' * Schema-defined QAPI visitors'
- genc = QAPIGenC(blurb, __doc__)
- genh = QAPIGenH(blurb, __doc__)
-
- genc.body(mcgen('''
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "qapi/error.h"
-#include "%(prefix)sqapi-visit.h"
-''',
- prefix=prefix))
-
- genh.body(mcgen('''
-#include "qapi/visitor.h"
-#include "qapi/qmp/qerror.h"
-#include "%(prefix)sqapi-types.h"
-
-''',
- prefix=prefix))
-
- vis = QAPISchemaGenVisitVisitor(opt_builtins)
+ vis = QAPISchemaGenVisitVisitor(opt_builtins, prefix)
schema.visit(vis)
- genc.body(vis.defn)
- genh.body(vis.decl)
- genc.write(output_dir, prefix + 'qapi-visit.c')
- genh.write(output_dir, prefix + 'qapi-visit.h')
+ vis.write(output_dir)
--
2.13.6
- Re: [Qemu-devel] [PATCH RFC 18/21] qapi/common: Fix guardname() for funny filenames, (continued)
- [Qemu-devel] [PATCH RFC 12/21] qapi: Concentrate QAPISchemaParser.exprs updates in .__init__(), Markus Armbruster, 2018/02/02
- [Qemu-devel] [PATCH RFC 08/21] qapi: Touch generated files only when they change, Markus Armbruster, 2018/02/02
- [Qemu-devel] [PATCH RFC 20/21] Include less of qapi-types.h, Markus Armbruster, 2018/02/02
- [Qemu-devel] [PATCH RFC 16/21] qapi/types qapi/visit: Make visitors use QAPIGen more,
Markus Armbruster <=
- [Qemu-devel] [PATCH RFC 05/21] qapi: Turn generators into modules, Markus Armbruster, 2018/02/02
- [Qemu-devel] [PATCH RFC 10/21] qapi/common: Eliminate QAPISchema.exprs, Markus Armbruster, 2018/02/02
- [Qemu-devel] [PATCH RFC 17/21] qapi/types qapi/visit: Generate built-in stuff into separate files, Markus Armbruster, 2018/02/02