NodePtr internal representation
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arvidn
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Rigidity
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Jan 8, 2024
…s 'type' and the bottom 26 bits for 'index'. Currently we use positive numbers for atoms and negative numbers for pairs. The new representation supports more types
Rigidity
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Jan 8, 2024
richardkiss
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Jan 9, 2024
richardkiss
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Jan 9, 2024
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This patch changes the internal representation of
NodePtrto use the top 6 bits as "type" and the bottom 26 bits for "index". Currently we use positive numbers for atoms and negative numbers for pairs. The new representation supports more types.For example, we may want to have atoms in
BigInt,G1orG2formats internally. These could be new types.But perhaps the most important optimization this opens up is to have atoms point to external buffers. e.g. when running a program stored in a buffer, we could have atoms point directly into that buffer rather than copying everything into the
Allocatorobject first.