## Summary Support `$a ??= $b` assignment operator. ## Context - See `docs/unsupported-syntax.md` and `docs/capabilities-syntax.md`. - North Star 2 self-host: [#1056](https://github.com/PurHur/php-compiler/issues/1056). ## Acceptance criteria - [ ] Parser + CFG lowering for the construct - [ ] VM semantics with regression tests - [ ] LLVM JIT lowering (or explicit stub policy in `SelfHostBuiltinPolicy`) - [ ] Bootstrap fixture if required for self-host probe - [ ] Documentation updated ## Related issues #99 (?? operator)
Summary
Support
$a ??= $bassignment operator.Context
docs/unsupported-syntax.mdanddocs/capabilities-syntax.md.Acceptance criteria
SelfHostBuiltinPolicy)Related issues
#99 (?? operator)