Clear flags on interpolated strings #3606
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st0012
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Jul 21, 2025
When inner strings aren't frozen, we need to clear the flags on interpolated string nodes so that we don't emit wrong instructions. The compiler is currently incorrectly emitting frozen strings because the parser is erroneously declaring interpolated strings as "frozen". We need to fix this behavior in the parser so we can fix the compiler in CRuby. This patch is a partial fix for [this bug](https://bugs.ruby-lang.org/issues/21187)
st0012
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Jul 21, 2025
vinistock
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Jul 21, 2025
tenderlove
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Jul 22, 2025
Strings concatenated with backslash may end up being frozen when they shouldn't be. This commit fixes the issue. It required a change upstream in Prism, but also a change to the Prism compiler in CRuby. ruby/prism#3606 [Bug #21187]
tenderlove
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Strings concatenated with backslash may end up being frozen when they shouldn't be. This commit fixes the issue. It required a change upstream in Prism, but also a change to the Prism compiler in CRuby. ruby/prism#3606 [Bug #21187]
tenderlove
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Jul 22, 2025
Strings concatenated with backslash may end up being frozen when they shouldn't be. This commit fixes the issue. It required a change upstream in Prism, but also a change to the Prism compiler in CRuby. ruby/prism#3606 [Bug #21187]
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When inner strings aren't frozen, we need to clear the flags on interpolated string nodes so that we don't emit wrong instructions.
The compiler is currently incorrectly emitting frozen strings because the parser is erroneously declaring interpolated strings as "frozen". We need to fix this behavior in the parser so we can fix the compiler in CRuby. This patch is a partial fix for this bug