Constants
NOT_LOW_16_BIT_MASK
uint256 constant NOT_LOW_16_BIT_MASK = ~uint256(0xFFFF);
ACTIVE_SOURCE_MASK
uint256 constant ACTIVE_SOURCE_MASK = NOT_LOW_16_BIT_MASK;
SUB_PARSER_BYTECODE_HEADER_SIZE
uint256 constant SUB_PARSER_BYTECODE_HEADER_SIZE = 5;