Module bytes_like 

Bytes-like (Bytes, String) implementation for the storage traits.

Storage Layout

Bytes-like types use Solidity-compatible: Short strings (≤31 bytes) are stored inline in a single slot:

• Bytes 0..len: UTF-8 string data (left-aligned)
• Byte 31 (LSB): length * 2 (bit 0 = 0 indicates short string)

Long strings (≥32 bytes) use keccak256-based storage:

• Base slot: stores length * 2 + 1 (bit 0 = 1 indicates long string)
• Data slots: stored at keccak256(main_slot) + i for each 32-byte chunk

Functions

calc_chunks 🔒

Compute the number of 32-byte chunks needed to store a byte string.

calc_data_slot 🔒

Compute the storage slot where long string data begins.

calc_string_length 🔒

Extract the string length from a storage slot value.

delete_bytes_like 🔒

Generic delete implementation for byte-like types (String, Bytes) using Solidity’s encoding.

encode_long_string_length 🔒

Encode the length metadata for a long string (≥32 bytes).

encode_short_string 🔒

Encode a short string (≤31 bytes) into a U256 for inline storage.

is_long_string 🔒

Check if a storage slot value represents a long string.

load_bytes_like 🔒

Generic load implementation for string-like types (String, Bytes) using Solidity’s encoding.

store_bytes_like 🔒

Generic store implementation for byte-like types (String, Bytes) using Solidity’s encoding.