Defer by-ref closure scope modifications after all args are processed#4865
Merged
ondrejmirtes merged 1 commit into2.1.xfrom Feb 10, 2026
Merged
Defer by-ref closure scope modifications after all args are processed#4865ondrejmirtes merged 1 commit into2.1.xfrom
ondrejmirtes merged 1 commit into2.1.xfrom
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processClosureNode returned a scope with by-ref captured variable modifications already applied. In processArgs, this polluted the scope used for evaluating subsequent arguments - but closures are not called during argument evaluation, so by-ref changes cannot have taken effect yet. The fix separates the by-ref data (closureResultScope, byRefUses) from the returned scope in ProcessClosureResult and lets callers decide when to apply it. The standalone closure call site applies immediately, while processArgs defers it until after all arguments are processed - same pattern as the existing deferral of processImmediatelyCalledCallable. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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processClosureNode returned a scope with by-ref captured variable modifications already applied. In processArgs, this polluted the scope used for evaluating subsequent arguments - but closures are not called during argument evaluation, so by-ref changes cannot have taken effect yet.
The fix separates the by-ref data (closureResultScope, byRefUses) from the returned scope in ProcessClosureResult and lets callers decide when to apply it. The standalone closure call site applies immediately, while processArgs defers it until after all arguments are processed - same pattern as the existing deferral of processImmediatelyCalledCallable.