Part 6: Intentional Limitations

udewy deliberately omits features to keep the compiler simple and auditable:

• No indexing syntax (arr[i]): Would require type information to know element size
• No runtime array literal syntax: square brackets remain available in prelude metadata, ignored type declarations, and bracketed type annotations
• No value casts (as): Would require type-aware conversion
• No string interpolation: Strings are simple byte sequences
• No closures or nested functions: Functions only at top level
• No function overloading: Each function name has exactly one definition
• Expression and/or are bitwise: Both sides are always evaluated; only if/loop conditions short-circuit
• No floating-point: Everything is 64-bit integers (with the caveat that float-bit helpers exist for extern ABI interop)
• No garbage collection: Manual memory management via syscalls