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Fix Kernel.rand signature #1783

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merged 1 commit into from
Apr 6, 2024
Merged

Fix Kernel.rand signature #1783

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8 changes: 4 additions & 4 deletions core/kernel.rbs
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Original file line number Diff line number Diff line change
Expand Up @@ -1318,10 +1318,10 @@ module Kernel : BasicObject
#
# See also Random.rand.
#
def self?.rand: () -> Float
| (Integer arg0) -> Integer
| (::Range[Integer] arg0) -> Integer
| (::Range[Float] arg0) -> Float
def self?.rand: (?0) -> Float
| (int arg0) -> (Integer | Float)
| (::Range[Integer] arg0) -> Integer?
| (::Range[Float] arg0) -> Float?

# <!--
# rdoc-file=io.c
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13 changes: 13 additions & 0 deletions test/stdlib/Kernel_test.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,19 @@ def test_autoload?
Kernel, :autoload?, interned
end
end

def test_rand
assert_send_type "() -> Float", Kernel, :rand
assert_send_type "(0) -> Float", Kernel, :rand, 0
assert_send_type "(_ToInt) -> Float", Kernel, :rand, 0.0
assert_send_type "(_ToInt) -> Float", Kernel, :rand, 0r
assert_send_type "(_ToInt) -> Float", Kernel, :rand, 0i
assert_send_type "(_ToInt) -> Integer", Kernel, :rand, 10
assert_send_type "(Range[Integer]) -> Integer", Kernel, :rand, 1..10
assert_send_type "(Range[Integer]) -> nil", Kernel, :rand, 0...0
assert_send_type "(Range[Float]) -> Float", Kernel, :rand, 0.0...10.0
assert_send_type "(Range[Float]) -> nil", Kernel, :rand, 0.0...0.0
end
end

class KernelTest < StdlibTest
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