def init_translated_class(orig_class, context):
assert 'translation' not in orig_class.__dict__
lua_cls = cpp.cpp_class('lua_munch_' + orig_class.identifier_name)
orig_class.translation = lua_cls
luaReg = cpp.cpp_variable_array('lua_reg_' + orig_class.identifier_name,
cpp.cpp_type('constexpr luaL_Reg', static=True))
logging.debug('baking methods for class: %s : %s' % (orig_class.name ,orig_class.public))
#lua_cls.public.append(make_getter(orig_class))
#we now bake all methods and subclasses from this class, but not preprocess them
class_ctx = lua_context_builder.bake(orig_class.public, preprocess=False)
for item in class_ctx.translated:
if item.public:
lua_cls.public.append(item)
else:
lua_cls.protected.append(item)
if type(item) == cpp.cpp_method and item.public:
luaReg.expr.append('{ "%s" , lua_munch_%s::%s }' % (item.orig_name, orig_class.identifier_name, item.name))
lua_cls.public.append(make_binder(orig_class, lua_cls))
#the base methods are shims that only retrieve it's self and pass it down to the
#base class
for base in orig_class.bases:
for item in base.public:
if type(item) != cpp.cpp_method:
continue
method = cpp.cpp_method('lua_munch_' + item.name,
static=True, returns=cpp.cpp_type('int'),
params=[cpp.cpp_variable('L', cpp.cpp_type('lua_State', pointer=True))])
if item.parent:
item.parameters.append(cpp.cpp_variable('lua_self', cpp.cpp_type(item.parent.name, pointer=True)))
method.exprs.append('%s* lua_self = lua_munch_%s::get(L, %d)' % (orig_class.qualname, orig_class.identifier_name, 1))
method.exprs.append(cpp.cpp_return(cpp.cpp_method_call('lua_munch_%s::lua_munch_%s' % (item.parent.name, item.name), params=['L', 'lua_self'])))
lua_cls.public.append(method)
if not item.is_constructor:
luaReg.expr.append('{ "%s" , lua_munch_%s::lua_munch_%s }' % (item.name, orig_class.name, item.name))
luaReg.expr.append('{ 0, 0 }')
lua_cls.public.append(luaReg)
context.binder_method.exprs.append('{}::bind(L)'.format(lua_cls.name))
luaReg.parent = lua_cls
vardecl = luaReg.define()
vardecl = vardecl.replace('static', '')
context.luareg_declarations.append(vardecl)
orig_class.translation = lua_cls
def lua_preprocess(data, context):
classes = filter(lambda item: type(item) == cpp.cpp_class, data)
functions = filter(lambda item: type(item) == cpp.cpp_method and item.parent == None, data)
other = filter(lambda item: type(item) != cpp.cpp_method and type(item) != cpp.cpp_class, data)
del data[:]
#resolving overloads
for item in classes:
item.identifier_name = item.qualname\
.replace('::', '_')\
.replace(' ', '')\
.replace('<','_')\
.replace('>', '_')\
.replace(',', '_')
process_functions(item)
#resolving dependencies
sorted_classes = []
class_set = set([])
previous_count = len(classes)
iteration = 0
while classes:
current = classes.pop(0)
processed = True
#print 'testing', current.name, current.dependencies
for dependency in current.dependencies:
if 'std' in dependency or dependency == current.qualname:
continue
#remove this once the generator knows how to get template items
if '<' in dependency:
templates = dependency[dependency.find('<') + 1:dependency.find('>')].split(',')
current.dependencies += templates
if not dependency in class_set and not iteration == 10:
#print 'I dont have dependency: ', dependency
classes.append(current)
processed = False
break
if processed:
#print '### added', current.name
sorted_classes.append(current)
class_set.add(current.qualname)
iteration = 0
if previous_count == len(classes):
if iteration == 10:
raise Exception("Couldn't resolve dependencies for the classes:" + str(classes))
iteration += 1
previous_count = len(classes)
fake_cls = cpp.cpp_class('Fake')
fake_cls.public = functions
process_functions(fake_cls)
data += sorted_classes + fake_cls.public + other
context.binder_method = cpp.cpp_method('luaopen_gdx',
returns=cpp.cpp_type('int'),
attributes=['extern', '"C"'],
params=[cpp.cpp_variable('L', cpp.cpp_type('lua_State', pointer=True))])
context.luareg_declarations = []
context.binder_method.exprs.append('lua_newtable(L)')
context.binder_method.return_value = cpp.cpp_return(1)
