Function example_roundtrip

examples/pydantic_usage.py:200–235

Example: Round-trip conversion.

()

def example_roundtrip():
    """Example: Round-trip conversion."""
    print("=== Round-trip Conversion ===")
    
    original = [
        Product(sku='KEY-001', name='Wireless Keyboard', price=79.99, stock=45, tags=['wireless', 'keyboard']),
        Product(sku='MOU-002', name='Gaming Mouse', price=59.99, stock=78, tags=['gaming', 'mouse']),
    ]
    
    print("Original objects:")
    for p in original:
        print(f"  {p.sku}: {p.name} - ${p.price} (stock: {p.stock})")
    print()
    
    # Encode to TOON
    toon = encode_pydantic(original)
    print("TOON format:")
    print(toon)
    print()
    
    # Decode back to Pydantic
    decoded = decode_to_pydantic(toon, Product)
    print("Decoded objects:")
    for p in decoded:
        print(f"  {p.sku}: {p.name} - ${p.price} (stock: {p.stock})")
    print()
    
    # Verify equality
    print("Round-trip successful:", all(
        orig.sku == dec.sku and
        orig.name == dec.name and
        orig.price == dec.price and
        orig.stock == dec.stock
        for orig, dec in zip(original, decoded)
    ))
    print()


def example_comparison():