Vector Type Specification - #1085
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August 24, 2026 20:22
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Closes #1080
I churned a bit on the spec here initially trying to fold the original "Variable sized array" proposal that I made as a sub-case of the array type. As I got further in the implementation I realized that they are distinct types and it would be much cleaner to treat them completely separately.
This PR specifies a new "Vector type" which is similar to array type but has two distinct differences:
Vector types also have a notion of size-prefix type which must be a type whose underlying type is an unsigned integer. This prefix type is used only during serialization to serialize the length of the vector.