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intern valtrees

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Lukas Markeffsky 2025-02-07 19:33:58 +01:00
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@ -304,9 +304,9 @@ The most important rule for
this representation is that every value must be uniquely represented. In other
words: a specific value must only be representable in one specific way. For example: there is only
one way to represent an array of two integers as a `ValTree`:
`ValTree::Branch(&[ValTree::Leaf(first_int), ValTree::Leaf(second_int)])`.
`Branch([Leaf(first_int), Leaf(second_int)])`.
Even though theoretically a `[u32; 2]` could be encoded in a `u64` and thus just be a
`ValTree::Leaf(bits_of_two_u32)`, that is not a legal construction of `ValTree`
`Leaf(bits_of_two_u32)`, that is not a legal construction of `ValTree`
(and is very complex to do, so it is unlikely anyone is tempted to do so).
These rules also mean that some values are not representable. There can be no `union`s in type