Bug #10259: send を使った attr_writer への書き込みができない場合がある

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: 2.2.0dev, 2.2.0-preview1
• Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN

[mtsmfm (Fumiaki Matsushima)]

class Hoge; attr_writer :a; end

Hoge.new.send(:"#{:a}=", 1)
# => 1 (ruby 2.1.2)
# hoge.rb:3:in `<main>': undefined method `a=' (ruby 2.2.0-preview1)

[mtsmfm (Fumiaki Matsushima)]

ruby 2.2.0dev (2014-09-19 trunk 47640) [x86_64-linux] でも
ruby 2.2.0-preview1 同様に例外が発生することを確認しました。

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

Applied in changeset r47643.

---

symbol.c: fix dynamic attrset ID

• symbol.c (rb_str_dynamic_intern): check if the stem ID of
  attrset ID is already registered as a static ID.
  [ruby-dev:48559] [Bug #10259]

[nobu (Nobuyoshi Nakada)]

• Related to Bug #10283: Calling define_method with a dynamic symbol ending in = results in a NoMethodError when calling the method via assignment, until called via send added

[nobu (Nobuyoshi Nakada)]

• Has duplicate Bug #10299: alias_method :new_foo=, :"#{:foo}=" doesn't work properly on ruby 2.2.0preview1. added