ValueCodes
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package serialization
We use optimized encoding of constant values to save space in serialization.
We use optimized encoding of constant values to save space in serialization. Since Box registers are stored as Constant nodes we save 1 byte for each register. This is due to convention that Value.opCode falling in [1..LastDataType] region is a constant. Thus, we can just decode an instance of SType and then decode data using DataSerializer.
Decoding of constants depends on the first byte and in general is a recursive procedure consuming some number of bytes from Reader.
Decoding of types depends on the first byte and in general is a recursive procedure consuming some number of bytes from Reader.
Decoding of types depends on the first byte and in general is a recursive procedure consuming some number of bytes from Reader. All data types are recognized by the first byte falling in the region [FirstDataType .. LastDataType]
SFunc types occupy remaining space of byte values [FirstFuncType ..
SFunc types occupy remaining space of byte values [FirstFuncType .. 255]
The last constant code is equal to FirstFuncType which represent generic function type.
The last constant code is equal to FirstFuncType which represent generic function type. We use this single code to represent all functional constants, since we don't have enough space in single byte. Subsequent bytes have to be read from Reader in order to decode the type of the function and the corresponding data.
(Since version ) see corresponding Javadoc for more information.
Encoding of values for serialization.