def make_method(json_data):
arguments = common.linked_record_members(json_data.get('args', []),
types)
return common.Method(Name(json_data['name']),
types[json_data.get('returns',
'void')], arguments)
def link_structure(struct, types):
struct.members = common.linked_record_members(struct.json_data['members'],
types)
def compute_wire_params(api_params, wire_json):
wire_params = api_params.copy()
types = wire_params['types']
commands = []
return_commands = []
object_result_member = common.RecordMember(Name('result'), types['ObjectHandle'], 'value', False, True)
string_message_member = common.RecordMember(Name('message'), types['char'], 'const*', False, False)
string_message_member.length = 'strlen'
built_object_member = common.RecordMember(Name('built object'), types['ObjectHandle'], 'value', False, False)
callback_status_member = common.RecordMember(Name('status'), types['uint32_t'], 'value', False, False)
# Generate commands from object methods
for api_object in wire_params['by_category']['object']:
for method in api_object.methods:
if method.return_type.category != 'object' and method.return_type.name.canonical_case() != 'void':
# No other return types supported
continue
# Create object method commands by prepending "self"
members = [common.RecordMember(Name('self'), types[api_object.dict_name], 'value', False, False)]
members += method.arguments
# Client->Server commands that return an object return the result object handle
if method.return_type.category == 'object':
members.append(object_result_member)
command_name = concat_names(api_object.name, method.name)
command = common.Command(command_name, members)
command.derived_object = api_object
command.derived_method = method
commands.append(command)
# Create builder return ErrorCallback commands
# This can be removed when WebGPU error handling is implemented
if api_object.is_builder:
command_name = concat_names(api_object.name, Name('error callback'))
command = common.Command(command_name, [
built_object_member,
callback_status_member,
string_message_member,
])
command.derived_object = api_object
return_commands.append(command)
for (name, json_data) in wire_json['commands'].items():
commands.append(common.Command(name, common.linked_record_members(json_data, types)))
for (name, json_data) in wire_json['return commands'].items():
return_commands.append(common.Command(name, common.linked_record_members(json_data, types)))
wire_params['cmd_records'] = {
'command': commands,
'return command': return_commands
}
for commands in wire_params['cmd_records'].values():
for command in commands:
command.update_metadata()
commands.sort(key=lambda c: c.name.canonical_case())
wire_params.update(wire_json.get('special items', {}))
return wire_params