Bug #19619: Numbered parameters don't work with method definition with parameters

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: 3.2.2
• Backport: 3.0: REQUIRED, 3.1: REQUIRED, 3.2: REQUIRED

[okuramasafumi (Masafumi OKURA)]

This works:

class Foo
  def bar(baz) = 'foo'
end

p Foo.new.bar('baz')

This also works:

o = Object.new
o.tap { |obj| def obj.bar(baz) = 'foo' }
p o.bar('baz')

Even this works:

o = Object.new
o.tap { def _1.bar = 'foo' }
p o.bar

But this DOESN'T work:

o = Object.new
o.tap { def _1.bar(baz) = 'foo' }
p o.bar('baz')

So, when we define a method with parameters on an instance given as numbered parameters, it doesn't work. If we change one condition (definition way, parameter existence, and so on), it works.

[okuramasafumi (Masafumi OKURA)]

The result of the last code:

undefined method `bar' for #<Object:0x0000000108e20438> (NoMethodError)

[nobu (Nobuyoshi Nakada)]

• Subject changed from Endless method definition with parameters for an instance given as numbered parameters doesn't work to Numbered parameters don't work with method definition with parameters

Since this doesn't work too, endless and/or singleton method definition doesn't seem to matter.

1.times {p _1; def bar; end} #=> 0
1.times {p _1; def bar x; end} #=> nil

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset git|b15e88e0fcccb03b9cc5e4c1478ec9b10e26c961.

---

[Bug #19619] Preserve numbered parameters context

Preserve numbered parameters context across method definitions

[duerst (Martin Dürst)]

@nobu (Nobuyoshi Nakada) In the above commit, I think node_new_temporary would be clearer than node_new_temporal.

[nobu (Nobuyoshi Nakada)]

• Backport changed from 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN to 3.0: REQUIRED, 3.1: REQUIRED, 3.2: REQUIRED