Dict := Object clone.
A dictionary stores key-value pairs, where the keys are symbols and
the values are Latitude objects. The same behavior can be approximated
with non-traditional objects, with the caveat that the parent slot
can then not be used as a key. With dedicated dictionary objects, any
symbol can be used as a key.
Dictionaries are iterable in three ways. The standard iterator
method returns an iterator with elements cons cells containing
key-value pairs. keys returns an iterable construct over the
collection of keys in the dictionary. values returns an iterable
construct over the collection of values in the dictionary. All three
of these iterators are read-only. The first two are invalidated if
keys are added to or removed from the dictionary, but values is
invalidated if any key or value is changed.
Dict toString.Returns a string representation of the dictionary, approximating a string which would, if evaluated, produce an equivalent dictionary object.
Dict clone.Returns a clone of the current dictionary object.
Dict dup.Returns a duplicate of the current dictionary object.
Dict get (key).Returns the value at the given key in the dictionary, without
evaluating methods. If key is not a symbol, TypeError is
raised. If key does not exist in the dictionary, SlotError is
raised.
Dict get (key) = value.Sets the value associated with the given key in the dictionary. If the key does not exist, it is created and the value is assigned. Otherwise, the value overwrites the previous one at that key.
Dict has? (key).Returns whether or not the dictionary contains a value at the given key.
Dict delete (key).If key exists as a key in the dictionary, it is removed from the
dictionary.
Dict iterator.Returns a DictIterator iterating over
the dictionary. The DictIterator is invalidated if keys are added to
or removed from the dictionary but is not invalidated if values are
modified.
Dict keys.Returns a collection containing all of the keys currently in the dictionary.
Dict values.Returns a collection containing all of the values currently in the dictionary.
Dict map (block).Maps a method over the dictionary. This behaves equivalently to the
corresponding Collection method but is specialized to dictionaries.
Dict == other.Returns true if and only if the dictionaries have the same keys and
each key corresponds to an equivalent (by ==) value in both
dictionaries.
Dict empty.Returns a fresh empty dictionary.
Dict builder.Returns an DictBuilder object which
will construct a new dictionary.
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