Function preprocess

record_api/core.py:163–192

Preserves lists, strings, and None. Tuples and dicts are recursed. All others primitive subclasses are replaced with their types. All non primitives subclasses are passed through to be handled by `default`.

(o)

def preprocess(o):
    """
    Preserves lists, strings, and None. Tuples and dicts are recursed.
    
    All others primitive subclasses are replaced with their types.

    All non primitives subclasses are passed through to be handled by `default`.
    """
    tp = type(o)
    if tp == str and len(o) <= MAX_STRING:
        return o
    if tp == list:
        return [preprocess(v) for v in o[:MAX_LIST]]
    if tp == dict:
        return {
            "t": "dict",
            "v": [
                [preprocess(k), preprocess(v)] for k, v in list(o.items())[:MAX_DICT]
            ],
        }
    if tp == tuple:
        return {
            "t": "tuple",
            "v": [preprocess(v) for v in o[:MAX_TUPLE]],
        }
    if isinstance(o, (int, float, bool, list, str, dict, tuple)):
        # Don't send literals of these
        return {"t": encode_module_value(tp)}
    # Other types will be encoded by the `default` function.
    return o


def default(o: object) -> object: