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Fix Set examples for 4.0 #69

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Fix Set examples for 4.0 #69

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2ebe668
4.0: Fix typo in class name for Set example
meineerde Jan 9, 2026
82d52ec
4.0: Inherit from correct Set classes in Set examples
meineerde Jan 9, 2026
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10 changes: 5 additions & 5 deletions 4.0.md
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,9 @@ description: Ruby 4.0 full and annotated changelog
# Ruby 4.0

* **Released at:** Dec 25, 2025 (<a class="github" href="https://github.com/ruby/ruby/blob/v4.0.0/NEWS.md">NEWS.md</a> file)
* **Status (as of Dec 26, 2025):** 4.0 is just released
* **Status (as of Jan 09, 2026):** 4.0 is just released
* **This document first published:** Dec 26, 2025
* **Last change to this document:** Dec 26, 2025
* **Last change to this document:** Jan 09, 2026

<!--
* **Reason:**
Expand Down Expand Up @@ -339,7 +339,7 @@ By redefinining `#instance_variables_to_inspect`, the default output of `#inspec

# Now, as methods of SubclassCompatible are implemented mostly as they were before,
# old assumptions work:
class SmallStringSet
class SmallStringSet < Set
def initialize(items) = super(items.to_a[...5])
def add(item) = super(item.to_s)
end
Expand All @@ -352,7 +352,7 @@ By redefinining `#instance_variables_to_inspect`, the default output of `#inspec
# Note that if your code relied on `@hash` instance variable directly
# (which it shouldn't have), it will be broken despite the compatibility
# layer:
class SmallStringsSet
class SmallStringSet < Set
# Somebody decided using internal variable would be more efficient
def numeric? = @hash.keys.all?(Numeric)
end
Expand All @@ -371,7 +371,7 @@ By redefinining `#instance_variables_to_inspect`, the default output of `#inspec

# It would be faster, but the assumptions which methods calls which
# internally aren't necessary correct anymore
class SmallStringSet2
class SmallStringSet2 < Set::CoreSet
def initialize(items) = super(items.to_a[...5])
def add(item) = super(item.to_s)
end
Expand Down
6 changes: 3 additions & 3 deletions _src/4.0.md
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Original file line number Diff line number Diff line change
Expand Up @@ -339,7 +339,7 @@ By redefinining `#instance_variables_to_inspect`, the default output of `#inspec

# Now, as methods of SubclassCompatible are implemented mostly as they were before,
# old assumptions work:
class SmallStringSet
class SmallStringSet < Set
def initialize(items) = super(items.to_a[...5])
def add(item) = super(item.to_s)
end
Expand All @@ -352,7 +352,7 @@ By redefinining `#instance_variables_to_inspect`, the default output of `#inspec
# Note that if your code relied on `@hash` instance variable directly
# (which it shouldn't have), it will be broken despite the compatibility
# layer:
class SmallStringsSet
class SmallStringSet < Set
# Somebody decided using internal variable would be more efficient
def numeric? = @hash.keys.all?(Numeric)
end
Expand All @@ -371,7 +371,7 @@ By redefinining `#instance_variables_to_inspect`, the default output of `#inspec

# It would be faster, but the assumptions which methods calls which
# internally aren't necessary correct anymore
class SmallStringSet2
class SmallStringSet2 < Set::CoreSet
def initialize(items) = super(items.to_a[...5])
def add(item) = super(item.to_s)
end
Expand Down