{#     Copyright 2023, Kay Hayen, mailto:kay.hayen@gmail.com                    #}
{#                                                                              #}
{#     Part of "Nuitka", an optimizing Python compiler that is compatible and   #}
{#     integrates with CPython, but also works on its own.                      #}
{#                                                                              #}
{#     Licensed under the Apache License, Version 2.0 (the "License");          #}
{#     you may not use this file except in compliance with the License.         #}
{#     You may obtain a copy of the License at                                  #}
{#                                                                              #}
{#        http://www.apache.org/licenses/LICENSE-2.0                            #}
{#                                                                              #}
{#     Unless required by applicable law or agreed to in writing, software      #}
{#     distributed under the License is distributed on an "AS IS" BASIS,        #}
{#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #}
{#     See the License for the specific language governing permissions and      #}
{#     limitations under the License.                                           #}
{#                                                                              #}
{% macro declare_long_access(type_desc, operand) %}
{% if type_desc == long_desc %}
    PyLongObject *{{operand.lstrip("*")}}_long_object = (PyLongObject *){{operand}};
{% elif type_desc == c_long_desc %}
    bool {{operand}}_is_negative;
    unsigned long {{operand}}_abs_ival;

    if ({{operand}} < 0) {
        {{operand}}_abs_ival = (unsigned long)(-1-{{operand}}) + 1;
        {{operand}}_is_negative = true;
    } else {
        {{operand}}_abs_ival = (unsigned long){{operand}};
        {{operand}}_is_negative = false;
    }

    Py_ssize_t {{operand}}_digit_count = 0;
    digit {{operand}}_digits[5] = {0}; // Could be more minimal and depend on sizeof(digit)
    {
        unsigned long t = {{operand}}_abs_ival;

        while (t != 0) {
            {{operand}}_digit_count += 1;
            assert({{operand}}_digit_count <= (Py_ssize_t)(sizeof({{operand}}_digit_count) / sizeof(digit)));

            {{operand}}_digits[{{operand}}_digit_count] = (digit)(t & PyLong_MASK);
            t >>= PyLong_SHIFT;
        }
    }

    Py_ssize_t {{operand}}_size = {{operand}}_is_negative == false ? {{operand}}_digit_count : -{{operand}}_digit_count;
{% elif type_desc == c_digit_desc %}
{# Nothing to do really, banking on C compiler to optimize repeated operations. #}
{% else %}
# error "Not done for {{type_desc}} yet"
{% endif %}
{% endmacro %}
