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Bug #16759
closedMinGW 2.5 - SEGV bug with Binding#local_variable_set
Description
A failure with MinGW 2.5.8 appeared in ruby/spec CI from the below in core/binding/local_variable_set_spec.rb. I believe the specs passed on 2.5.7:
it "raises a NameError on global access" do
bind = binding
-> { bind.local_variable_set(:$0, "") }.should raise_error(NameError)
end
it "raises a NameError on special variable access" do
bind = binding
-> { bind.local_variable_set(:$~, "") }.should raise_error(NameError)
-> { bind.local_variable_set(:$_, "") }.should raise_error(NameError)
end
Working locally, the below code failed on both 2.5.7 and 2.5.8, but passed on mswin head & MinGW 2.6 thru head:
[:$0, :$~, :$_].each do |v|
a = -> (bind) do
bind.local_variable_set(v, '')
end
begin
a[binding]
rescue => e
puts "#{v} #{e.class}"
end
I checked other uses, see https://github.com/MSP-Greg/ruby-testing/blob/master/binding-local-variable.rb. I ran the file in Actions CI on both Ubuntu & Windows, see the 'binding issue' step on any job at:
https://github.com/MSP-Greg/ruby-testing/actions/runs/71232731
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