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Throw RuntimeError if getting/setting ractor local storage for non-main ractor #7174

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Merged
merged 1 commit into from
May 13, 2025
Merged

Throw RuntimeError if getting/setting ractor local storage for non-main ractor #7174

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18 changes: 18 additions & 0 deletions bootstraptest/test_ractor.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -1564,6 +1564,24 @@ class C
}.take
}

# Ractor-local storage
assert_equal '2', %q{
Ractor.new {
fails = 0
begin
Ractor.main[:key] # cannot get ractor local storage from non-main ractor
rescue => e
fails += 1 if e.message =~ /Cannot get ractor local/
end
begin
Ractor.main[:key] = 'val'
rescue => e
fails += 1 if e.message =~ /Cannot set ractor local/
end
fails
}.take
}

###
### Synchronization tests
###
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10 changes: 8 additions & 2 deletions ractor.rb
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Expand Up @@ -835,15 +835,21 @@ def self.make_shareable obj, copy: false
end
end

# get a value from ractor-local storage of current Ractor
# get a value from ractor-local storage for current Ractor
# Obsolete and use Ractor.[] instead.
def [](sym)
if (self != Ractor.current)
raise RuntimeError, "Cannot get ractor local storage for non-current ractor"
end
Primitive.ractor_local_value(sym)
end

# set a value in ractor-local storage of current Ractor
# set a value in ractor-local storage for current Ractor
# Obsolete and use Ractor.[]= instead.
def []=(sym, val)
if (self != Ractor.current)
raise RuntimeError, "Cannot set ractor local storage for non-current ractor"
end
Primitive.ractor_local_value_set(sym, val)
end

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