Global object init checker gives warning when calling object methods before super constructor finishes #24349
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EnzeXing
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liufengyun
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Nov 8, 2025
| ObjectRef(classSym) | ||
| val obj = ObjectRef(classSym) | ||
| obj.setAfterSuperCall() | ||
| obj |
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I'm not sure about obj.setAfterSuperCall here.
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This is when we don't have source, so we're not checking this object at all. Presumably in that case it should always be OK to access the object, so setAfterSuperCall makes sense to me.
| UnknownValue | ||
| else if ref.isInstanceOf[ObjectRef] && !ref.asObjectRef.isAfterSuperCall then | ||
| report.warning("Calling " + target + " of object " + ref.klass + " before the super constructor of the object finishes! " + Trace.show, Trace.position) | ||
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I was thinking whether the check should be moved to accessObject?
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Calling global object methods before super constructor finishes is unsafe and may lead to java.lang.ExceptionInInitializerError (see #24201). This PR lets global object init checker gives warning for this case