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Bug #21714

open

Prism and parse.y inconsistency in `def a = a b do 1 end`

Bug #21714: Prism and parse.y inconsistency in `def a = a b do 1 end`

Added by tompng (tomoya ishida) 1 day ago.

Status:
Open
Assignee:
-
Target version:
-
ruby -v:
ruby 4.0.0dev (2025-11-26T06:41:42Z master 43ed35de6c) +YJIT +MN +PRISM [arm64-darwin24]
[ruby-core:123916]

Description

Endless method definition and command with block are syntax error in parse.y, accepted in Prism.

def a = a b do 1 end

Related to https://bugs.ruby-lang.org/issues/17398 and https://bugs.ruby-lang.org/issues/21711

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