From dcac64711ea906e844ae60a5927e5580f7252c1e Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 14 Feb 2019 16:22:36 +0100 Subject: qapi: Clean up modular built-in code generation a bit We neglect to call .visit_module() for the special module we use for built-ins. Harmless, but clean it up anyway. The tests/qapi-schema/*.out now show the built-in module as 'module None'. Subclasses of QAPISchemaModularCVisitor need to ._add_module() this special module to enable code generation for built-ins. When this hasn't been done, QAPISchemaModularCVisitor.visit_module() does nothing for the special module. That looks like built-ins could accidentally be generated into the wrong module when a subclass neglects to call ._add_module(). Can't happen, because built-ins are all visited before any other module. But that's non-obvious. Switch off code generation explicitly. Rename QAPISchemaModularCVisitor._begin_module() to ._begin_user_module(). New QAPISchemaModularCVisitor._is_builtin_module(), for clarity. Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20190214152251.2073-4-armbru@redhat.com> --- scripts/qapi/common.py | 24 ++++++++++++++++++------ 1 file changed, 18 insertions(+), 6 deletions(-) (limited to 'scripts/qapi/common.py') diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py index c89edc0cb0..0e3ec598a4 100644 --- a/scripts/qapi/common.py +++ b/scripts/qapi/common.py @@ -1868,6 +1868,7 @@ class QAPISchema(object): def visit(self, visitor): visitor.visit_begin(self) module = None + visitor.visit_module(module) for entity in self._entity_list: if visitor.visit_needed(entity): if entity.module != module: @@ -2321,9 +2322,15 @@ class QAPISchemaModularCVisitor(QAPISchemaVisitor): self._what = what self._blurb = blurb self._pydoc = pydoc + self._genc = None + self._genh = None self._module = {} self._main_module = None + @staticmethod + def _is_builtin_module(name): + return not name + def _module_basename(self, what, name): if name is None: return re.sub(r'-', '-builtin-', what) @@ -2334,7 +2341,7 @@ class QAPISchemaModularCVisitor(QAPISchemaVisitor): return basename + '-' + os.path.splitext(os.path.basename(name))[0] def _add_module(self, name, blurb): - if self._main_module is None and name is not None: + if self._main_module is None and not self._is_builtin_module(name): self._main_module = name genc = QAPIGenC(blurb, self._pydoc) genh = QAPIGenH(blurb, self._pydoc) @@ -2346,22 +2353,27 @@ class QAPISchemaModularCVisitor(QAPISchemaVisitor): def write(self, output_dir, opt_builtins=False): for name in self._module: - if name is None and not opt_builtins: + if self._is_builtin_module(name) and not opt_builtins: continue basename = self._module_basename(self._what, name) (genc, genh) = self._module[name] genc.write(output_dir, basename + '.c') genh.write(output_dir, basename + '.h') - def _begin_module(self, name): + def _begin_user_module(self, name): pass def visit_module(self, name): if name in self._module: self._set_module(name) - return - self._add_module(name, self._blurb) - self._begin_module(name) + elif self._is_builtin_module(name): + # The built-in module has not been created. No code may + # be generated. + self._genc = None + self._genh = None + else: + self._add_module(name, self._blurb) + self._begin_user_module(name) def visit_include(self, name, info): basename = self._module_basename(self._what, name) -- cgit v1.2.3-55-g7522