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[Qemu-devel] [PATCH v2 07/29] qapi: Turn generators into modules


From: Markus Armbruster
Subject: [Qemu-devel] [PATCH v2 07/29] qapi: Turn generators into modules
Date: Sun, 11 Feb 2018 10:35:45 +0100

The next commit will introduce a common driver program for all
generators.  The generators need to be modules for that.  qapi2texi.py
already is.  Make the other generators follow suit.

The changes are actually trivial.  Obvious in the diffs once you view
them with whitespace changes ignored.

Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Marc-André Lureau <address@hidden>
---
 scripts/qapi-commands.py   | 43 ++++++++++++++++++--------------
 scripts/qapi-event.py      | 43 ++++++++++++++++++--------------
 scripts/qapi-introspect.py | 54 ++++++++++++++++++++++------------------
 scripts/qapi-types.py      | 56 ++++++++++++++++++++++-------------------
 scripts/qapi-visit.py      | 62 +++++++++++++++++++++++++---------------------
 5 files changed, 143 insertions(+), 115 deletions(-)

diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index e97e16e828..8584cb5873 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -255,16 +255,17 @@ class QAPISchemaGenCommandVisitor(QAPISchemaVisitor):
         self._regy += gen_register_command(name, success_response)
 
 
-(input_file, output_dir, do_c, do_h, prefix, opts) = parse_command_line()
+def main(argv):
+    (input_file, output_dir, do_c, do_h, prefix, opts) = parse_command_line()
 
-blurb = '''
+    blurb = '''
  * Schema-defined QAPI/QMP commands
 '''
 
-genc = QAPIGenC(blurb, __doc__)
-genh = QAPIGenH(blurb, __doc__)
+    genc = QAPIGenC(blurb, __doc__)
+    genh = QAPIGenH(blurb, __doc__)
 
-genc.add(mcgen('''
+    genc.add(mcgen('''
 #include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "qemu/module.h"
@@ -279,23 +280,27 @@ genc.add(mcgen('''
 #include "%(prefix)sqmp-commands.h"
 
 ''',
-               prefix=prefix))
+                   prefix=prefix))
 
-genh.add(mcgen('''
+    genh.add(mcgen('''
 #include "%(prefix)sqapi-types.h"
 #include "qapi/qmp/dispatch.h"
 
 void %(c_prefix)sqmp_init_marshal(QmpCommandList *cmds);
 ''',
-               prefix=prefix, c_prefix=c_name(prefix, protect=False)))
-
-schema = QAPISchema(input_file)
-vis = QAPISchemaGenCommandVisitor(prefix)
-schema.visit(vis)
-genc.add(vis.defn)
-genh.add(vis.decl)
-
-if do_c:
-    genc.write(output_dir, prefix + 'qmp-marshal.c')
-if do_h:
-    genh.write(output_dir, prefix + 'qmp-commands.h')
+                   prefix=prefix, c_prefix=c_name(prefix, protect=False)))
+
+    schema = QAPISchema(input_file)
+    vis = QAPISchemaGenCommandVisitor(prefix)
+    schema.visit(vis)
+    genc.add(vis.defn)
+    genh.add(vis.decl)
+
+    if do_c:
+        genc.write(output_dir, prefix + 'qmp-marshal.c')
+    if do_h:
+        genh.write(output_dir, prefix + 'qmp-commands.h')
+
+
+if __name__ == '__main__':
+    main(sys.argv)
diff --git a/scripts/qapi-event.py b/scripts/qapi-event.py
index 3f98e2491a..e7e07f0055 100644
--- a/scripts/qapi-event.py
+++ b/scripts/qapi-event.py
@@ -171,16 +171,17 @@ class QAPISchemaGenEventVisitor(QAPISchemaVisitor):
         self._event_names.append(name)
 
 
-(input_file, output_dir, do_c, do_h, prefix, dummy) = parse_command_line()
+def main(argv):
+    (input_file, output_dir, do_c, do_h, prefix, dummy) = parse_command_line()
 
-blurb = '''
+    blurb = '''
  * Schema-defined QAPI/QMP events
 '''
 
-genc = QAPIGenC(blurb, __doc__)
-genh = QAPIGenH(blurb, __doc__)
+    genc = QAPIGenC(blurb, __doc__)
+    genh = QAPIGenH(blurb, __doc__)
 
-genc.add(mcgen('''
+    genc.add(mcgen('''
 #include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "%(prefix)sqapi-event.h"
@@ -191,22 +192,26 @@ genc.add(mcgen('''
 #include "qapi/qmp-event.h"
 
 ''',
-               prefix=prefix))
+                   prefix=prefix))
 
-genh.add(mcgen('''
+    genh.add(mcgen('''
 #include "qapi/util.h"
 #include "%(prefix)sqapi-types.h"
 
 ''',
-               prefix=prefix))
-
-schema = QAPISchema(input_file)
-vis = QAPISchemaGenEventVisitor(prefix)
-schema.visit(vis)
-genc.add(vis.defn)
-genh.add(vis.decl)
-
-if do_c:
-    genc.write(output_dir, prefix + 'qapi-event.c')
-if do_h:
-    genh.write(output_dir, prefix + 'qapi-event.h')
+                   prefix=prefix))
+
+    schema = QAPISchema(input_file)
+    vis = QAPISchemaGenEventVisitor(prefix)
+    schema.visit(vis)
+    genc.add(vis.defn)
+    genh.add(vis.decl)
+
+    if do_c:
+        genc.write(output_dir, prefix + 'qapi-event.c')
+    if do_h:
+        genh.write(output_dir, prefix + 'qapi-event.h')
+
+
+if __name__ == '__main__':
+    main(sys.argv)
diff --git a/scripts/qapi-introspect.py b/scripts/qapi-introspect.py
index 2418b80a82..b098b95053 100644
--- a/scripts/qapi-introspect.py
+++ b/scripts/qapi-introspect.py
@@ -167,38 +167,44 @@ const char %(c_name)s[] = %(c_string)s;
         arg_type = arg_type or self._schema.the_empty_object_type
         self._gen_json(name, 'event', {'arg-type': self._use_type(arg_type)})
 
-# Debugging aid: unmask QAPI schema's type names
-# We normally mask them, because they're not QMP wire ABI
-opt_unmask = False
 
-(input_file, output_dir, do_c, do_h, prefix, opts) = \
-    parse_command_line('u', ['unmask-non-abi-names'])
+def main(argv):
+    # Debugging aid: unmask QAPI schema's type names
+    # We normally mask them, because they're not QMP wire ABI
+    opt_unmask = False
 
-for o, a in opts:
-    if o in ('-u', '--unmask-non-abi-names'):
-        opt_unmask = True
+    (input_file, output_dir, do_c, do_h, prefix, opts) = \
+        parse_command_line('u', ['unmask-non-abi-names'])
 
-blurb = '''
+    for o, a in opts:
+        if o in ('-u', '--unmask-non-abi-names'):
+            opt_unmask = True
+
+    blurb = '''
  * QAPI/QMP schema introspection
 '''
 
-genc = QAPIGenC(blurb, __doc__)
-genh = QAPIGenH(blurb, __doc__)
+    genc = QAPIGenC(blurb, __doc__)
+    genh = QAPIGenH(blurb, __doc__)
 
-genc.add(mcgen('''
+    genc.add(mcgen('''
 #include "qemu/osdep.h"
 #include "%(prefix)sqmp-introspect.h"
 
 ''',
-               prefix=prefix))
-
-schema = QAPISchema(input_file)
-vis = QAPISchemaGenIntrospectVisitor(prefix, opt_unmask)
-schema.visit(vis)
-genc.add(vis.defn)
-genh.add(vis.decl)
-
-if do_c:
-    genc.write(output_dir, prefix + 'qmp-introspect.c')
-if do_h:
-    genh.write(output_dir, prefix + 'qmp-introspect.h')
+                   prefix=prefix))
+
+    schema = QAPISchema(input_file)
+    vis = QAPISchemaGenIntrospectVisitor(prefix, opt_unmask)
+    schema.visit(vis)
+    genc.add(vis.defn)
+    genh.add(vis.decl)
+
+    if do_c:
+        genc.write(output_dir, prefix + 'qmp-introspect.c')
+    if do_h:
+        genh.write(output_dir, prefix + 'qmp-introspect.h')
+
+
+if __name__ == '__main__':
+    main(sys.argv)
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
index 5ff2bfcf41..10955d1c01 100644
--- a/scripts/qapi-types.py
+++ b/scripts/qapi-types.py
@@ -240,45 +240,51 @@ class QAPISchemaGenTypeVisitor(QAPISchemaVisitor):
         self.decl += gen_object(name, None, [variants.tag_member], variants)
         self._gen_type_cleanup(name)
 
-# If you link code generated from multiple schemata, you want only one
-# instance of the code for built-in types.  Generate it only when
-# opt_builtins, enabled by command line option -b.  See also
-# QAPISchemaGenTypeVisitor.visit_end().
-opt_builtins = False
 
-(input_file, output_dir, do_c, do_h, prefix, opts) = \
-    parse_command_line('b', ['builtins'])
+def main(argv):
+    # If you link code generated from multiple schemata, you want only one
+    # instance of the code for built-in types.  Generate it only when
+    # opt_builtins, enabled by command line option -b.  See also
+    # QAPISchemaGenTypeVisitor.visit_end().
+    opt_builtins = False
 
-for o, a in opts:
-    if o in ('-b', '--builtins'):
-        opt_builtins = True
+    (input_file, output_dir, do_c, do_h, prefix, opts) = \
+        parse_command_line('b', ['builtins'])
 
-blurb = '''
+    for o, a in opts:
+        if o in ('-b', '--builtins'):
+            opt_builtins = True
+
+    blurb = '''
  * Schema-defined QAPI types
 '''
 
-genc = QAPIGenC(blurb, __doc__)
-genh = QAPIGenH(blurb, __doc__)
+    genc = QAPIGenC(blurb, __doc__)
+    genh = QAPIGenH(blurb, __doc__)
 
-genc.add(mcgen('''
+    genc.add(mcgen('''
 #include "qemu/osdep.h"
 #include "qapi/dealloc-visitor.h"
 #include "%(prefix)sqapi-types.h"
 #include "%(prefix)sqapi-visit.h"
 ''',
-               prefix=prefix))
+                   prefix=prefix))
 
-genh.add(mcgen('''
+    genh.add(mcgen('''
 #include "qapi/util.h"
 '''))
 
-schema = QAPISchema(input_file)
-vis = QAPISchemaGenTypeVisitor(opt_builtins)
-schema.visit(vis)
-genc.add(vis.defn)
-genh.add(vis.decl)
+    schema = QAPISchema(input_file)
+    vis = QAPISchemaGenTypeVisitor(opt_builtins)
+    schema.visit(vis)
+    genc.add(vis.defn)
+    genh.add(vis.decl)
 
-if do_c:
-    genc.write(output_dir, prefix + 'qapi-types.c')
-if do_h:
-    genh.write(output_dir, prefix + 'qapi-types.h')
+    if do_c:
+        genc.write(output_dir, prefix + 'qapi-types.c')
+    if do_h:
+        genh.write(output_dir, prefix + 'qapi-types.h')
+
+
+if __name__ == '__main__':
+    main(sys.argv)
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 0a1eff7736..6d829c4d1d 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -323,49 +323,55 @@ class QAPISchemaGenVisitVisitor(QAPISchemaVisitor):
         self.decl += gen_visit_decl(name)
         self.defn += gen_visit_alternate(name, variants)
 
-# If you link code generated from multiple schemata, you want only one
-# instance of the code for built-in types.  Generate it only when
-# opt_builtins, enabled by command line option -b.  See also
-# QAPISchemaGenVisitVisitor.visit_end().
-opt_builtins = False
 
-(input_file, output_dir, do_c, do_h, prefix, opts) = \
-    parse_command_line('b', ['builtins'])
+def main(argv):
+    # If you link code generated from multiple schemata, you want only one
+    # instance of the code for built-in types.  Generate it only when
+    # opt_builtins, enabled by command line option -b.  See also
+    # QAPISchemaGenVisitVisitor.visit_end().
+    opt_builtins = False
 
-for o, a in opts:
-    if o in ('-b', '--builtins'):
-        opt_builtins = True
+    (input_file, output_dir, do_c, do_h, prefix, opts) = \
+        parse_command_line('b', ['builtins'])
 
-blurb = '''
+    for o, a in opts:
+        if o in ('-b', '--builtins'):
+            opt_builtins = True
+
+    blurb = '''
  * Schema-defined QAPI visitors
 '''
 
-genc = QAPIGenC(blurb, __doc__)
-genh = QAPIGenH(blurb, __doc__)
+    genc = QAPIGenC(blurb, __doc__)
+    genh = QAPIGenH(blurb, __doc__)
 
-genc.add(mcgen('''
+    genc.add(mcgen('''
 #include "qemu/osdep.h"
 #include "qemu-common.h"
 #include "qapi/error.h"
 #include "qapi/qmp/qerror.h"
 #include "%(prefix)sqapi-visit.h"
 ''',
-               prefix=prefix))
+                   prefix=prefix))
 
-genh.add(mcgen('''
+    genh.add(mcgen('''
 #include "qapi/visitor.h"
 #include "%(prefix)sqapi-types.h"
 
 ''',
-               prefix=prefix))
-
-schema = QAPISchema(input_file)
-vis = QAPISchemaGenVisitVisitor(opt_builtins)
-schema.visit(vis)
-genc.add(vis.defn)
-genh.add(vis.decl)
-
-if do_c:
-    genc.write(output_dir, prefix + 'qapi-visit.c')
-if do_h:
-    genh.write(output_dir, prefix + 'qapi-visit.h')
+                   prefix=prefix))
+
+    schema = QAPISchema(input_file)
+    vis = QAPISchemaGenVisitVisitor(opt_builtins)
+    schema.visit(vis)
+    genc.add(vis.defn)
+    genh.add(vis.decl)
+
+    if do_c:
+        genc.write(output_dir, prefix + 'qapi-visit.c')
+    if do_h:
+        genh.write(output_dir, prefix + 'qapi-visit.h')
+
+
+if __name__ == '__main__':
+    main(sys.argv)
-- 
2.13.6




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