Merge pull request #2764 from ruby/ruby-4.0.0-preview3

Ruby 4.0.0 preview3

Author: soutaro

.github/workflows/bundle-update.yml

@@ -16,7 +16,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '4.0.0-preview2'
+          ruby-version: '4.0.0-preview3'
 
       - name: Set up git
         run: |

.github/workflows/c-check.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "4.0.0-preview2"
+          ruby-version: "4.0.0-preview3"
           bundler-cache: none
       - name: Set working directory as safe
         run: git config --global --add safe.directory $(pwd)

.github/workflows/comments.yml

@@ -11,12 +11,12 @@ jobs:
   comments:
     runs-on: "ubuntu-latest"
     env:
-      RUBY_COMMIT: v4.0.0-preview2
+      RUBY_COMMIT: v4.0.0-preview3
     steps:
       - uses: actions/checkout@v6
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "4.0.0-preview2"
+          ruby-version: "4.0.0-preview3"
           bundler: none
       - name: Install dependencies
         run: |

.github/workflows/ruby.yml

@@ -13,24 +13,24 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['3.2', '3.3', '3.4', '4.0.0-preview2', head]
+        ruby: ['3.2', '3.3', '3.4', '4.0.0-preview3', head]
         rubyopt: [""]
         job:
           - test
         include:
           - ruby: head
             job: stdlib_test rubocop
-          - ruby: "4.0.0-preview2"
+          - ruby: "4.0.0-preview3"
             job: stdlib_test
-          - ruby: "4.0.0-preview2"
+          - ruby: "4.0.0-preview3"
             job: test
             rubyopt: "--enable-frozen-string-literal"
-          - ruby: "4.0.0-preview2"
+          - ruby: "4.0.0-preview3"
             job: stdlib_test
             rubyopt: "--enable-frozen-string-literal"
-          - ruby: "4.0.0-preview2"
+          - ruby: "4.0.0-preview3"
             job: rubocop validate test_doc build test_generate_stdlib raap
-          - ruby: "4.0.0-preview2"
+          - ruby: "4.0.0-preview3"
             job: typecheck_test
     env:
       RANDOMIZE_STDLIB_TEST_ORDER: "true"
@@ -74,7 +74,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ['4.0.0-preview2', head]
+        ruby: ['4.0.0-preview3', head]
     steps:
       - uses: actions/checkout@v6
       - name: Install dependencies

core/array.rbs

@@ -1213,7 +1213,7 @@ class Array[unchecked out Elem] < Object
   # Returns the element from `self` found by a binary search, or `nil` if the
   # search found no suitable element.
   #
-  # See [Binary Searching](rdoc-ref:bsearch.rdoc).
+  # See [Binary Searching](rdoc-ref:language/bsearch.rdoc).
   #
   # Related: see [Methods for Fetching](rdoc-ref:Array@Methods+for+Fetching).
   #
@@ -1229,7 +1229,7 @@ class Array[unchecked out Elem] < Object
   # Returns the integer index of the element from `self` found by a binary search,
   # or `nil` if the search found no suitable element.
   #
-  # See [Binary Searching](rdoc-ref:bsearch.rdoc).
+  # See [Binary Searching](rdoc-ref:language/bsearch.rdoc).
   #
   # Related: see [Methods for Fetching](rdoc-ref:Array@Methods+for+Fetching).
   #
@@ -2618,7 +2618,7 @@ class Array[unchecked out Elem] < Object
   #   - pack(template, buffer: nil) -> string
   # -->
   # Formats each element in `self` into a binary string; returns that string. See
-  # [Packed Data](rdoc-ref:packed_data.rdoc).
+  # [Packed Data](rdoc-ref:language/packed_data.rdoc).
   #
   def pack: (string fmt, ?buffer: String?) -> String
 

core/complex.rbs

@@ -184,23 +184,24 @@ class Complex < Numeric
 
   # <!--
   #   rdoc-file=complex.c
-  #   - complex * numeric -> new_complex
+  #   - self * other -> numeric
   # -->
-  # Returns the product of `self` and `numeric`:
+  # Returns the numeric product of `self` and `other`:
   #
+  #     Complex.rect(9, 8)  * 4                   # => (36+32i)
+  #     Complex.rect(20, 9) * 9.8                 # => (196.0+88.2i)
   #     Complex.rect(2, 3)  * Complex.rect(2, 3)  # => (-5+12i)
   #     Complex.rect(900)   * Complex.rect(1)     # => (900+0i)
   #     Complex.rect(-2, 9) * Complex.rect(-9, 2) # => (0-85i)
-  #     Complex.rect(9, 8)  * 4                   # => (36+32i)
-  #     Complex.rect(20, 9) * 9.8                 # => (196.0+88.2i)
+  #     Complex.rect(9, 8)  * Rational(2, 3)      # => ((6/1)+(16/3)*i)
   #
   def *: (Numeric) -> Complex
 
   # <!--
   #   rdoc-file=complex.c
-  #   - complex ** numeric -> new_complex
+  #   - self ** exponent -> complex
   # -->
-  # Returns `self` raised to power `numeric`:
+  # Returns `self` raised to the power `exponent`:
   #
   #     Complex.rect(0, 1) ** 2            # => (-1+0i)
   #     Complex.rect(-8) ** Rational(1, 3) # => (1.0000000000000002+1.7320508075688772i)
@@ -209,23 +210,33 @@ class Complex < Numeric
 
   # <!--
   #   rdoc-file=complex.c
-  #   - complex + numeric -> new_complex
+  #   - self + other -> numeric
   # -->
-  # Returns the sum of `self` and `numeric`:
+  # Returns the sum of `self` and `other`:
+  #
+  #     Complex(1, 2) + 0  # => (1+2i)
+  #     Complex(1, 2) + 1  # => (2+2i)
+  #     Complex(1, 2) + -1 # => (0+2i)
+  #
+  #     Complex(1, 2) + 1.0  # => (2.0+2i)
+  #
+  #     Complex(1, 2) + Complex(2, 1)     # => (3+3i)
+  #     Complex(1, 2) + Complex(2.0, 1.0) # => (3.0+3.0i)
+  #
+  #     Complex(1, 2) + Rational(1, 1) # => ((2/1)+2i)
+  #     Complex(1, 2) + Rational(1, 2) # => ((3/2)+2i)
+  #
+  # For a computation involving Floats, the result may be inexact (see Float#+):
   #
-  #     Complex.rect(2, 3)  + Complex.rect(2, 3)  # => (4+6i)
-  #     Complex.rect(900)   + Complex.rect(1)     # => (901+0i)
-  #     Complex.rect(-2, 9) + Complex.rect(-9, 2) # => (-11+11i)
-  #     Complex.rect(9, 8)  + 4                   # => (13+8i)
-  #     Complex.rect(20, 9) + 9.8                 # => (29.8+9i)
+  #     Complex(1, 2) + 3.14 # => (4.140000000000001+2i)
   #
   def +: (Numeric) -> Complex
 
   # <!--
   #   rdoc-file=complex.c
-  #   - complex - numeric -> new_complex
+  #   - self - other -> complex
   # -->
-  # Returns the difference of `self` and `numeric`:
+  # Returns the difference of `self` and `other`:
   #
   #     Complex.rect(2, 3)  - Complex.rect(2, 3)  # => (0+0i)
   #     Complex.rect(900)   - Complex.rect(1)     # => (899+0i)
@@ -237,9 +248,9 @@ class Complex < Numeric
 
   # <!--
   #   rdoc-file=complex.c
-  #   - -complex -> new_complex
+  #   - -self -> complex
   # -->
-  # Returns the negation of `self`, which is the negation of each of its parts:
+  # Returns `self`, negated, which is the negation of each of its parts:
   #
   #     -Complex.rect(1, 2)   # => (-1-2i)
   #     -Complex.rect(-1, -2) # => (1+2i)
@@ -248,9 +259,9 @@ class Complex < Numeric
 
   # <!--
   #   rdoc-file=complex.c
-  #   - complex / numeric -> new_complex
+  #   - self / other -> complex
   # -->
-  # Returns the quotient of `self` and `numeric`:
+  # Returns the quotient of `self` and `other`:
   #
   #     Complex.rect(2, 3)  / Complex.rect(2, 3)  # => (1+0i)
   #     Complex.rect(900)   / Complex.rect(1)     # => (900+0i)
@@ -597,9 +608,9 @@ class Complex < Numeric
 
   # <!--
   #   rdoc-file=complex.c
-  #   - complex / numeric -> new_complex
+  #   - self / other -> complex
   # -->
-  # Returns the quotient of `self` and `numeric`:
+  # Returns the quotient of `self` and `other`:
   #
   #     Complex.rect(2, 3)  / Complex.rect(2, 3)  # => (1+0i)
   #     Complex.rect(900)   / Complex.rect(1)     # => (900+0i)

core/encoding.rbs

@@ -281,7 +281,7 @@ class Encoding
   def inspect: () -> String
 
   # <!-- rdoc-file=encoding.c -->
-  # Returns the name of the encoding.
+  # The name of the encoding.
   #
   #     Encoding::UTF_8.name      #=> "UTF-8"
   #
@@ -297,12 +297,8 @@ class Encoding
   #
   def names: () -> Array[String]
 
-  # <!--
-  #   rdoc-file=encoding.c
-  #   - enc.name -> string
-  #   - enc.to_s -> string
-  # -->
-  # Returns the name of the encoding.
+  # <!-- rdoc-file=encoding.c -->
+  # The name of the encoding.
   #
   #     Encoding::UTF_8.name      #=> "UTF-8"
   #

core/enumerable.rbs

@@ -2136,7 +2136,7 @@ module Enumerable[unchecked out Elem] : _Each[Elem]
   #     ["F", 6860]
   #
   # You can use the special symbol `:_alone` to force an element into its own
-  # separate chuck:
+  # separate chunk:
   #
   #     a = [0, 0, 1, 1]
   #     e = a.chunk{|i| i.even? ? :_alone : true }

core/enumerator.rbs

@@ -137,7 +137,7 @@ class Enumerator[unchecked out Elem, out Return = void] < Object
 
   # <!--
   #   rdoc-file=enumerator.c
-  #   - Enumerator.produce(initial = nil) { |prev| block } -> enumerator
+  #   - Enumerator.produce(initial = nil, size: nil) { |prev| block } -> enumerator
   # -->
   # Creates an infinite enumerator from any block, just called over and over.  The
   # result of the previous iteration is passed to the next one. If `initial` is
@@ -169,6 +169,23 @@ class Enumerator[unchecked out Elem, out Return = void] < Object
   #     Enumerator.produce { scanner.scan(PATTERN) }.slice_after { scanner.eos? }.first
   #     # => ["7", "+", "38", "/", "6"]
   #
+  # The optional `size` keyword argument specifies the size of the enumerator,
+  # which can be retrieved by Enumerator#size.  It can be an integer,
+  # `Float::INFINITY`, a callable object (such as a lambda), or `nil` to indicate
+  # unknown size.  When not specified, the size defaults to `Float::INFINITY`.
+  #
+  #     # Infinite enumerator
+  #     enum = Enumerator.produce(1, size: Float::INFINITY, &:succ)
+  #     enum.size  # => Float::INFINITY
+  #
+  #     # Finite enumerator with known/computable size
+  #     abs_dir = File.expand_path("./baz") # => "/foo/bar/baz"
+  #     traverser = Enumerator.produce(abs_dir, size: -> { abs_dir.count("/") + 1 }) {
+  #       raise StopIteration if it == "/"
+  #       File.dirname(it)
+  #     }
+  #     traverser.size  # => 4
+  #
   def self.produce: [T] () { (T? prev) -> T } -> Enumerator[T, bot]
                   | [T] (T initial) { (T prev) -> T } -> Enumerator[T, bot]
 

core/fiber.rbs

@@ -82,7 +82,8 @@ class Fiber < Object
   # -->
   # Returns the value of the fiber storage variable identified by `key`.
   #
-  # The `key` must be a symbol, and the value is set by Fiber#[]= or Fiber#store.
+  # The `key` must be a symbol, and the value is set by Fiber#[]= or
+  # Fiber#storage.
   #
   # See also Fiber::[]=.
   #