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""" PSA Buffer utility data-class.
"""
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
from typing import List
from .. import typing_util
class BufferParameter:
"""Description of an input or output buffer parameter sequence to a PSA function."""
#pylint: disable=too-few-public-methods
def __init__(self, i: int, is_output: bool,
buffer_name: str, size_name: str) -> None:
"""Initialize the parameter information.
i is the index of the function argument that is the pointer to the buffer.
The size is argument i+1. For a variable-size output, the actual length
goes in argument i+2.
buffer_name and size_names are the names of arguments i and i+1.
This class does not yet help with the output length.
"""
self.index = i
self.buffer_name = buffer_name
self.size_name = size_name
self.is_output = is_output
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