This is my mistake, I thought they were regular objects, but apparently
they are not. We don't need to pin them.
Revert "Symbols can move so only cache IDs"
This reverts commit 672ee5f6ed5a6840a3be9150b6721a5ee8f8766b.
* explanation of the class concept, with examples;
* docs for all class methods (most of them just say "Like Enumerable#<methodname>, but chains operation to be lazy-evaluated.", but I believe they are useful this way because now have proper call-sequences and link to corresponding Enumerable's explanations)
* simplified example for ::new to emphasize the main concept
* Enumerable#lazy docs are slightly lightened and linked to this class for more in-depth explanations.
[Misc #15529][ruby-core:91046]
Co-authored-by: zverok <zverok.offline@gmail.com>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67320 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
A Yielder object can now be directly passed to another method as a
block argument.
```ruby
enum = Enumerator.new { |y|
Dir.glob("*.rb") { |file|
File.open(file) { |f| f.each_line(&y) }
}
}
```
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67211 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Reject ArithmeticSequence in rb_range_values so that methods like
Array#[] raises TypeError for ArithmeticSequence as an index.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix the wrong uses of rb_int_ge in arith_seq_each.
[ruby-core:90648] [Bug #15444]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66474 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add rb_arithmetic_sequence_components_t struct for encapsulating
the components of ArithmeticSequence.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66353 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
New public C-API for extracting components of Enumerator::ArithmeticSequence
or Range.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Especially over checking argc then calling rb_scan_args just to
raise an ArgumentError.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* enumerator.c (enum_chain_total_size): use RARRAY_AREF
instead of RARRAY_PTR_USE because we don't need non-const
ptr.
* enumerator.c (enum_chain_each): ditto.
* enumerator.c (enum_chain_rewind): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66148 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
No point in having rb_intern lookup and cache a predefined ID
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66050 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
They return an Enumerator::Chain object which is a subclass of
Enumerator, which represents a chain of enumerables that works as a
single enumerator.
```ruby
e = (1..3).chain([4, 5])
e.to_a #=> [1, 2, 3, 4, 5]
e = (1..3).each + [4, 5]
e.to_a #=> [1, 2, 3, 4, 5]
```
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65949 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
When each() takes arguments, it is never safe to assume that the iteration
would repeat the same number of times as with each() without any
argument. Actually, there is no way to get the exact number, so the
size should be set to nil to denote that.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65302 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Make sure Enumerator::ArithmeticSequence#each to work well
for a complex step value.
This reverts commit ca47fb329a1d48af3e1009620bdb18e931c9f188.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64695 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Make sure Enumerator::ArithmeticSequence#each to work well
for a complex step value.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64692 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
added documentation of Enumerator::Lazy#force, just to clarify that it
is an alias of an inherited method. [ruby-core:88872] [Bug #15079]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64645 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This fixes a bug of Enumerator::ArithmeticSequence#last in the case that
a non-integral argument is passed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Undefine new and allocate methods of Enumerator::ArithmeticSequence.
[ruby-core:82816] [Feature #13904]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64256 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit introduces new core class Enumerator::ArithmeticSequence.
Enumerator::ArithmeticSequence is a subclass of Enumerator, and
represents a number generator of an arithmetic sequence.
After this commit, Numeric#step and Range#step without blocks
returned an ArithmeticSequence object instead of an Enumerator.
This class introduces the following incompatibilities:
- You can create a zero-step ArithmeticSequence,
and its size is not ArgumentError, but Infinity.
- You can create a negative-step ArithmeticSequence from a range.
[ruby-core:82816] [Feature #13904]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64205 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
