1*99e0aae7SDavid Rees# Copyright 2023 Google LLC 2*99e0aae7SDavid Rees# 3*99e0aae7SDavid Rees# Licensed under the Apache License, Version 2.0 (the "License"); 4*99e0aae7SDavid Rees# you may not use this file except in compliance with the License. 5*99e0aae7SDavid Rees# You may obtain a copy of the License at 6*99e0aae7SDavid Rees# 7*99e0aae7SDavid Rees# https://www.apache.org/licenses/LICENSE-2.0 8*99e0aae7SDavid Rees# 9*99e0aae7SDavid Rees# Unless required by applicable law or agreed to in writing, software 10*99e0aae7SDavid Rees# distributed under the License is distributed on an "AS IS" BASIS, 11*99e0aae7SDavid Rees# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*99e0aae7SDavid Rees# See the License for the specific language governing permissions and 13*99e0aae7SDavid Rees# limitations under the License. 14*99e0aae7SDavid Rees 15*99e0aae7SDavid Rees"""Attributes in the C++ backend and associated metadata.""" 16*99e0aae7SDavid Rees 17*99e0aae7SDavid Reesfrom enum import Enum 18*99e0aae7SDavid Reesfrom compiler.util import attribute_util 19*99e0aae7SDavid Rees 20*99e0aae7SDavid Rees 21*99e0aae7SDavid Reesclass Attribute(str, Enum): 22*99e0aae7SDavid Rees """Attributes available in the C++ backend.""" 23*99e0aae7SDavid Rees NAMESPACE = "namespace" 24*99e0aae7SDavid Rees ENUM_CASE = "enum_case" 25*99e0aae7SDavid Rees 26*99e0aae7SDavid Rees 27*99e0aae7SDavid Rees# Types associated with C++ backend attributes. 28*99e0aae7SDavid ReesTYPES = { 29*99e0aae7SDavid Rees Attribute.NAMESPACE: attribute_util.STRING, 30*99e0aae7SDavid Rees Attribute.ENUM_CASE: attribute_util.STRING, 31*99e0aae7SDavid Rees} 32*99e0aae7SDavid Rees 33*99e0aae7SDavid Rees 34*99e0aae7SDavid Reesclass Scope(set, Enum): 35*99e0aae7SDavid Rees """Allowed scopes for C++ backend attributes. 36*99e0aae7SDavid Rees 37*99e0aae7SDavid Rees Each entry is a set of (Attribute, default?) tuples, the first value being 38*99e0aae7SDavid Rees the attribute itself, the second value being a boolean value indicating 39*99e0aae7SDavid Rees whether the attribute is allowed to be defaulted in that scope.""" 40*99e0aae7SDavid Rees BITS = { 41*99e0aae7SDavid Rees # Bits may contain an enum definition. 42*99e0aae7SDavid Rees (Attribute.ENUM_CASE, True) 43*99e0aae7SDavid Rees } 44*99e0aae7SDavid Rees ENUM = { 45*99e0aae7SDavid Rees (Attribute.ENUM_CASE, True), 46*99e0aae7SDavid Rees } 47*99e0aae7SDavid Rees ENUM_VALUE = { 48*99e0aae7SDavid Rees (Attribute.ENUM_CASE, False), 49*99e0aae7SDavid Rees } 50*99e0aae7SDavid Rees MODULE = { 51*99e0aae7SDavid Rees (Attribute.NAMESPACE, False), 52*99e0aae7SDavid Rees (Attribute.ENUM_CASE, True), 53*99e0aae7SDavid Rees }, 54*99e0aae7SDavid Rees STRUCT = { 55*99e0aae7SDavid Rees # Struct may contain an enum definition. 56*99e0aae7SDavid Rees (Attribute.ENUM_CASE, True), 57*99e0aae7SDavid Rees } 58