hamster/History.rdoc at core · hamstergem/hamster

0.4.3 / 2012-10-01

Track size on Tries for performance (fredericksgary)
Hash#values should not return a set as there is no guarantee of uniqueness (and worse it means you potentially lose duplicate values). (fredericksgary)
Add Hash#slice, Hash#except, Hash#fetch (misfo)
Implemented a public Hash#new for subclassing (misfo)
Some initial benchmarks (haedius)
Documentation corrections (harukizaemon, szajbus, rwfowler)

0.4.2 / 2011-04-07

Added List#merge/merge_by to merge sorted lists into a single stream.
Added Enumerator#to_list produces a lazy list.
Alias List/Set#group_by as #group.

0.4.0 / 2010-12-13

Added initial implementation of Vector for efficient indexed access.
Fix car/cdr so they work on Ruby 1.8.7 (tianyicui)
Fix specs when running under 1.8.7 (tianyicui, kef)
Fix bundler/rvm support (kef)

0.3.10 / 2010-10-22

Update to RSpec 2.

0.3.9 / 2010-06-02

Implement Hash#values.

0.3.8 / 2010-06-02

Hash now accepts a block for supplying default values.

0.3.7 / 2010-05-16

Initial Queue implementation complete.
Implement Stack#peek.
Add Stack#enqueue, #dequeue to reflect the fact that a Stack is also a LIFO Queue.
Fix incompatibilities with Ruby 1.8.7 syntax.

0.3.6 / 2010-05-03

Hash#put now supports returning a value from a block instead of passing an explicit value. Almost like a substitute for the non-functional []=

0.3.4 / 2010-04-29

Reduce garbage collection by keeping a singleton instance of an empty hash.
Added some VERY experimental Read-Copy-Update collections (no tests).
Slightly improve performance and greatly improve the readability of #eql?/#== methods.
Added some VERY experimental memoization for immutable objects.
Added Set#merge as an alias for Set#union.
Implemented Hash#merge (aliased as #+).

0.3.3 / 2010-04-09

Fixed: hash code generation had VERY poor distribution.

0.3.1 / 2010-04-04

Fixed: Immutable not required in hamster.rb

0.3.0 / 2010-03-28

Add Hamster::Immutable as general purpose module to facililate immutability.
List, Stack, Set, and Hash now all implement Hamster::Immutable.

0.2.13 / 2010-03-25

Implement Hash#hash.
Implement Set#hash.
Implement List#hash.
Implement Set#flatten.

0.2.12 / 2010-03-01

Fixed bug: List#join accidentally modifying head if it was a string.

0.2.11 / 2010-02-15

Implement Set#one?
Implement Set#minimum (aliased as #min).
Implement Set#maximum (aliased as #max).
Implement Set#reduce with an optional memo.
Fix List#reduce should return nil when given no block and no starting value.

0.2.10 / 2010-02-15

Fix a bunch of spec failures under 1.8.7.
Remove some redundant object construction.

0.2.9 / 2010-02-11

Fix #to_list not available in all Enumerables.

0.2.8 / 2010-02-10

Implement Set#exclusion (aliased as #^) as equivalent to ((a | b) - (a & b)).
Implement Set#subset?
Implement Set#superset?
Implement Set#difference (aliased as #diff, #subtract, and #-).
Implement Set#intersection (aliased as #intersect and #&).
Implement Set#union (aliased as #| and #+).
Implement Set#union (aliased as #| and #+).
Remove Hash#[]= as its useless.

0.2.7 / 2010-02-08

Fixed bug with Hamster.interval (and Hamster.range) not handling Strings correctly.

0.2.6 / 2010-01-29

Implement Array#to_list.
Simplify (and improve performance of) conversions from arrays to lists.
Speed up Set and List sorting.
Implement Hash#find (aliased as #detect).
Implement List#elem_indices, List#find_indices (aliased as #indices as appropriate).
Implement List#index as per MRI and alias as #elem_index, and #find_index as appropriate.
Remove some redundant construction of streams.

0.2.5 / 2010-01-19

Implement Set#clear.
Implement List#slice (also aliased as #[from, length]).
Implement List#at (aliased as #[index]).

0.2.4 / 2010-01-18

Fix List#cadr and friends under JRuby.
Remove redundant locking (speed up).
Make reverse “lazy” (ish).
Fixed: StackOverflow calling List#head and List#tail on very large lazy lists.
Alias #reduce as #foldr.

0.2.3 / 2010-01-18

Implement Set#group_by.
Implement List#group_by.
Implement Hash#inspect.
Tuples can now be implicitly converted to args and variables via #to_ary, meaning you can do:
```
integers = Hamster.iterate(1, &:succ)
odds, evens = integers.partition(&:odd?)
```

0.2.2 / 2010-01-15

Implement List#flatten.
Implement List#each_slice (aliased as #each_chunk).
Return a tuple rather than a list for #split_at, #partition, #break, and #span.
Implement List#chunk.
Implement Set#compact.
Implement List#compact.

0.2.1 / 2010-01-15

Fix bug: List#empty? would cause a stack overflow on very large streams.

0.2.0 / 2010-01-14

List methods that return lists are now all lazy. Not sure what, if any, negative impact this will have but the positives have so far been well worth it.
Ensure List#eql? (and #==) doesn’t accidentally consider an empty list to be equal to an empty array!
Ensure List responds_to? cadr and friends.
Stream now releases the block for garbage collection once called.
Implement List#combinations.
Implement List#inits.
Implement List#tails.
Implement Hash#uniq.
Alias #uniq as #remove_duplicates.
Alias #all? as #forall?
Implement Set#product.
Implement Set#sum.