Bug #13074: When executing instance_exec with symbol.to_proc, it ignores first argument.

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED, 2.4: DONE

[alpaca-tc (Hiroyuki Ishii)]

Is this intentional?

# Ruby 2.3.3
« instance_exec(1) { |i| i.itself }
=> 1
« instance_exec(1, &:itself)
=> 1

# Ruby 2.4.0
« instance_exec(1) { |i| i.itself }
=> 1
« instance_exec(1, &:itself)
=> main

[alpaca-tc (Hiroyuki Ishii)]

• Subject changed from When execute instance_exec with symbol.to_proc, it ignores first argument. to When executing instance_exec with symbol.to_proc, it ignores first argument.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r57194.

---

vm_eval.c: Symbol#to_proc and instance_exec

• vm_eval.c (yield_under): should evaluate the proc on the first
  argument. [ruby-core:78839] [Bug #13074]

[nobu (Nobuyoshi Nakada)]

• Has duplicate Bug #13087: Regression of instance_exec behaviour in ruby 2.4 added

[naruse (Yui NARUSE)]

• Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED, 2.4: REQUIRED

[naruse (Yui NARUSE)]

• Backport changed from 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED, 2.4: REQUIRED to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED, 2.4: DONE

ruby_2_4 r57834 merged revision(s) 57194.

[nobu (Nobuyoshi Nakada)]

• Related to Bug #13370: instance_exec occurs "no receiver given (ArgumentError)" added