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Bug #20597

open

`eval('break if false')` should raise SyntaxError but retuns nil

Added by tompng (tomoya ishida) 16 days ago. Updated 10 days ago.

Status:
Open
Assignee:
-
Target version:
-
ruby -v:
ruby 3.4.0dev (2024-06-27T13:47:22Z master c6a0d03649) [x86_64-linux]
[ruby-core:118398]

Description

These are all SyntaxError (Invalid break, compile error (SyntaxError))

ruby -ce "break if false"
ruby -ce "break if (false)"
ruby -ce "break if nil"
ruby -ce "break if (nil)"
ruby -ce "break if 0>1"

But when it is passed to eval, some of them does not raise SyntaxError but return nil.

eval('break if false') #=> nil
eval('break if (false)') #=> nil
eval('break if nil') #=> nil
eval('break if (nil)') #=> Can't escape from eval with break (SyntaxError)
eval('break if 0>1') #=> Can't escape from eval with break (SyntaxError)

Same behavior with next redo and yield

Updated by jeremyevans0 (Jeremy Evans) 10 days ago

I submitted a pull request to fix this (but prism still needs a related fix) https://github.com/ruby/ruby/pull/11099

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