script: Add cx_no_gc/cx/realm codegen option and demostrate them
#40582
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Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
realm codegen option and demostrate safe realm/jscontextcx_no_gc/cx/realm codegen option and demostrate them
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
jdm
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Nov 16, 2025
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Really nice work making this possible to integrate incrementally!
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Companion to servo/mozjs#650
We added 3 new options to bindings.conf, each more powerful then the previous one, so one should use the least powerful as possible to keep things flexible:
1
cx_no_gcprepends argument&JSContext, which allows creating NoGC tokens and using functions that do not trigger GC.2.
cxprepends argument&mut JSContext, which allows everything that previous one allows, but it also allows calling GC triggering functions.3.
realmprepends argument&mut CurrentRealm, which can be deref_mut to&mut JSContext(so it can do everything that previous can), but it also ensures that there is current entered realm, which can be used for creation of InRealm.next steps: #40600
reviewable per commit
Testing: It's just refactoring
try run: https://github.com/sagudev/servo/actions/runs/19287700927