{%- set id = id ?? "field#{random()}" %}
{%- set instructionsId = instructionsId ?? "#{id}-instructions" %}
{%- set tipId = tipId ?? "#{id}-tip" %}
{%- set warningId = warningId ?? "#{id}-warning" %}
{%- set errorsId = errorsId ?? "#{id}-errors" %}

{%- set fieldLabel = fieldLabel ?? label ?? block('label') ?? null %}
{%- set instructions = instructions ?? block('instructions') ?? null %}
{%- set tip = tip ?? block('tip') ?? null %}
{%- set warning = warning ?? block('warning') ?? null %}
{%- set errors = errors ?? null %}

{%- set describedBy = describedBy ?? [
    errors ? errorsId : null,
    instructions ? instructionsId : null,
    tip ? tipId : null,
    warning ? warningId : null,
]|filter|join(' ') ?: null %}

{%- if block('heading') is defined %}
    {#- Extract whatever HTML comes before and after parent() #}
    {%- set heading %}{% block heading %}<!-- HEADING -->{% endblock %}{% endset %}
    {%- set headingParts = heading|split('<!-- HEADING -->', 2) %}
    {%- set headingPrefix = headingParts[0] ?? null %}
    {%- set headingSuffix = headingParts[1] ?? null %}
{%- endif %}

{%- if block('attr') is defined %}
    {%- set fieldAttributes = (fieldAttributes ?? {})|merge(('<div ' ~ block('attr') ~ '>')|parseAttr, recursive=true) %}
{%- endif %}

{%- if block('input') is defined %}
    {%- set input %}{% block input %}{{ input|raw }}{% endblock %}{% endset %}
{%- endif %}

{{ craft.cp.field(input, _context)|raw }}