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Ractor.select requires an argument or yield_value

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Marc-Andre Lafortune 2020-12-05 00:04:48 -05:00 committed by Marc-André Lafortune
parent c2fa024e02
commit 53ce71b5af
Notes: git 2020-12-07 16:21:38 +09:00 
Merged: https://github.com/ruby/ruby/pull/3848
2 changed files with 11 additions and 0 deletions
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9
bootstraptest/test_ractor.rb
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@ -163,6 +163,15 @@ assert_equal 30.times.map { 'ok' }.to_s, %q{
} }
} unless ENV['RUN_OPTS'] =~ /--jit-min-calls=5/ # This always fails with --jit-wait --jit-min-calls=5 } unless ENV['RUN_OPTS'] =~ /--jit-min-calls=5/ # This always fails with --jit-wait --jit-min-calls=5
# Exception for empty select
assert_match /specify at least one ractor/, %q{
begin
Ractor.select
rescue ArgumentError => e
e.message
end
}
# Outgoing port of a ractor will be closed when the Ractor is terminated. # Outgoing port of a ractor will be closed when the Ractor is terminated.
assert_equal 'ok', %q{ assert_equal 'ok', %q{
r = Ractor.new do r = Ractor.new do

2
ractor.rb
View file

@ -71,6 +71,8 @@ class Ractor
# # and r is :yield # # and r is :yield
# #
def self.select(*ractors, yield_value: yield_unspecified = true, move: false) def self.select(*ractors, yield_value: yield_unspecified = true, move: false)
raise ArgumentError, 'specify at least one ractor or `yield_value`' if yield_unspecified && ractors.empty?
__builtin_cstmt! %q{ __builtin_cstmt! %q{
const VALUE *rs = RARRAY_CONST_PTR_TRANSIENT(ractors); const VALUE *rs = RARRAY_CONST_PTR_TRANSIENT(ractors);
VALUE rv; VALUE rv;