alef 0.115.5

Opinionated polyglot binding generator for Rust libraries
Documentation 
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(enum_payload: {
    {% if steps %}var{% else %}const{% endif %} enum_value = {{ expression }};
    if (enum_value != .array) return error.ExpectedEnumCollection;
{% for step in steps %}
{% if step.kind == "index" %}
    if (enum_value != .array or enum_value.array.items.len <= {{ step.index }}) return error.EnumPayloadIndexUnavailable;
    enum_value = enum_value.array.items[{{ step.index }}];
{% else %}
    if (enum_value != .object) return error.ExpectedEnumPayloadObject;
    enum_value = enum_value.object.get("{{ step.key }}") orelse return error.EnumPayloadFieldUnavailable;
{% endif %}
{% endfor %}
    break :enum_payload enum_value;
})