Bug #14670: Objectで定義したmethod_missingでsuperが使えない

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.3: DONTNEED, 2.4: DONTNEED, 2.5: DONTNEED

[keiju (Keiju Ishitsuka)]

class Object
  def method_missing(name, *args, &block)
    super
  end
end

Object.new.foo

を実行すると, SystemStackError になってしまいます.

再定義する先がObjectでなければ(Objectのサブクラスなら)問題ないです.

[nobu (Nobuyoshi Nakada)]

• Related to Feature #14313: Support creating KeyError with receiver and key from Ruby added

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)
• Backport changed from 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN to 2.3: DONTNEED, 2.4: DONTNEED, 2.5: DONTNEED

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset trunk|r63136.

---

error.c: super in method_missing

• error.c (nometh_err_initialize): do not shirtcut rb_call_super,
  to push proper control frame. [ruby-dev:50522] [Bug #14670]

• error.c (rb_nomethod_err_new): allocate and initialize a new
  NoMethodError instance.

• vm_eval.c (rb_make_no_method_exception): create a new exception
  instance directly without method calls, to prevent influence of
  ruby level method definitions, which can cause an unpredictable
  behavior, e.g., infinite recursion.