Bug #20992: `eval(ascii_encoded_code)` raises EncodingError when multibyte local variable exists

• Status: Open
• Assignee: prism
• Target version: -
• ruby -v: ruby 3.5.0dev (2024-12-28T09:40:37Z master e4ec2128ae) +YJIT +MN +PRISM [arm64-darwin22]
• Backport: 3.1: DONTNEED, 3.2: DONTNEED, 3.3: DONTNEED, 3.4: REQUIRED

[tompng (tomoya ishida)]

#coding: utf-8
α=1
eval '1+2'.encode('ascii')

$ ruby file.rb
file.rb:3:in 'Kernel#eval': invalid symbol in encoding US-ASCII :"\xCE\xB1" (EncodingError)
	from file.rb:3:in '<main>'

Running the file below with LANG=C ruby file.rb will make IRB unresponsive

#coding: utf-8
α=1
binding.irb

$ LANG=C ruby file.rb
From: file.rb @ line 3 :

    1: #coding: utf-8
    2: α=1
 => 3: binding.irb
irb(main):001> 1
<internal:kernel>:168:in 'Kernel#loop': invalid symbol in encoding US-ASCII :"\xCE\xB1" (EncodingError)
	from <internal:prelude>:5:in 'Binding#irb'
	from file.rb:3:in '<main>'
irb(main):002> 

[nobu (Nobuyoshi Nakada)]

• Assignee set to prism
• 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)]

• Status changed from Open to Closed

Applied in changeset git|5fec9308320e8b377681ef19b0cd46d53f94e8ac.

---

[Bug #20992] Test for local variable name encodings

[nobu (Nobuyoshi Nakada)]

• Status changed from Closed to Open