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9299cf31b1
An unspecified uplevel is not the same as an uplevel of 1:
```
$ irb
irb(main):001> warn("foo")
foo
=> nil
irb(main):002> warn("foo", uplevel: 1)
/home/user/.rbenv/versions/2.7.8/lib/ruby/gems/2.7.0/gems/irb-1.14.0/lib/irb/workspace.rb:121: warning: foo
=> nil
```
https://github.com/ruby/prism/commit/dcedd14357
37 lines
987 B
Ruby
37 lines
987 B
Ruby
# frozen_string_literal: true
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# Polyfill for Kernel#warn with the category parameter. Not all Ruby engines
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# have Method#parameters implemented, so we check the arity instead if
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# necessary.
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if (method = Kernel.instance_method(:warn)).respond_to?(:parameters) ? method.parameters.none? { |_, name| name == :category } : (method.arity == -1)
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Kernel.prepend(
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Module.new {
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def warn(*msgs, uplevel: nil, category: nil) # :nodoc:
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case uplevel
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when nil
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super(*msgs)
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when Integer
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super(*msgs, uplevel: uplevel + 1)
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else
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super(*msgs, uplevel: uplevel.to_int + 1)
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end
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end
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}
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)
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Object.prepend(
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Module.new {
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def warn(*msgs, uplevel: nil, category: nil) # :nodoc:
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case uplevel
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when nil
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super(*msgs)
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when Integer
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super(*msgs, uplevel: uplevel + 1)
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else
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super(*msgs, uplevel: uplevel.to_int + 1)
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end
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end
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}
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)
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end
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