enclosed
enclosed
-- a term used in the documentation to describe an expression
whose hash code distinguishes it from all other enclosed
expressions. Enclosed expressions include Objects or Lists
which are mutable, and Symbols. Unenclosed expressions
have hash codes which are computed from the contents of the
expression, so it may happen that the hash codes are the same
when the contents are different, or the contents are the same
and the expressions are different.
See also hashing.
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