Interface BytecodeSerializer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface BytecodeSerializer

Represents a class that can serialize constants in a bytecode interpreter.

A BytecodeSerializer establishes a byte encoding for objects. The BytecodeDeserializer used to deserialize an interpreter should follow the same encoding.

For example:

public class MyBytecodeSerializer implements BytecodeSerializer {
    @Override
    public void serialize(SerializerContext context, DataOutput buffer, Object object) throws IOException {
        if (object instanceof Integer i) {
            buffer.writeByte(0);
            buffer.writeInt(i);
        } else if (object instanceof String s) {
            buffer.writeByte(1);
            buffer.writeUTF(s);
        } else ...
    }
}

A serializer is responsible for encoding:

• objects used as constants in the bytecode (e.g., objects passed to emitLoadConstant or constant operands)
• objects stored in non-transient fields of the root node
• Source objects passed in builder calls (i.e., sources passed to beginSource)

Since:

24.2

See Also:

• GenerateBytecode.enableSerialization()

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	BytecodeSerializer.SerializerContext	Interface for a generated class that can serialize a BytecodeRootNode to a byte buffer.

Method Summary

Modifier and Type	Method	Description
void	serialize(BytecodeSerializer.SerializerContext context, DataOutput buffer, Object object)	The serialization process.

Method Details

serialize

void serialize(BytecodeSerializer.SerializerContext context,
 DataOutput buffer,
 Object object)
        throws IOException

The serialization process. The byte encoding of object should be written to buffer.

The context is supplied so that a BytecodeSerializer can transitively serialize other root nodes (e.g., inner functions) if necessary.

Must not be dependent on any side-effects of the language.

Throws:

IOException

Since:

24.2