Bug #21103: Binding problem with delegate methods

• Status: Closed
• Assignee: tenderlovemaking (Aaron Patterson)
• Target version: -
• Backport: 3.1: DONTNEED, 3.2: DONTNEED, 3.3: DONTNEED, 3.4: REQUIRED

[tenderlovemaking (Aaron Patterson)]

def foo(...)
  a = 123
  binding.local_variable_get(:a)
end

p foo([])

Expected output is 123, actual output is some number. I think there is an off-by-one error in bindings created from delegate frames.

[byroot (Jean Boussier)]

• Backport changed from 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN to 3.1: DONTNEED, 3.2: DONTNEED, 3.3: DONTNEED, 3.4: REQUIRED

[nobu (Nobuyoshi Nakada)]

https://github.com/ruby/ruby/pull/12686

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset git|db02a6b3ab4cabbdf492c26dcb1929b4ef0370a1.

---

[Bug #21103] Fix local variable index calculation with forwarding

Forwarding argument is optimized not to packed when no other arguments
and an internal object refers values before it. This size is decided
at called time, calculate the local variable index from the fixed end
point.