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HostExceptions in TruffleSqueak are difficult to inspect/debug #146

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janehmueller opened this issue Jun 10, 2021 · 1 comment
Open

HostExceptions in TruffleSqueak are difficult to inspect/debug #146

janehmueller opened this issue Jun 10, 2021 · 1 comment
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@fniephaus
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@janehmueller
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When I get a HostException, I get a debugger showing me the primitive call where the exception occurred with only the exception name (HostException) as message. The root exception was an NPE, which has nil as its message. Additionally, HostExceptions are nested within each other with HostObject (not quite sure how this is structured).

It would be nice if I can view the stack trace of the root Java exception in TruffleSqueak.
@fniephaus
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It seems that guest languages are not allowed to see stack frames of host Java.
In the meantime, I've pushed support for interop exceptions in the PolyglotInspector via 95f81e7.

@fniephaus fniephaus self-assigned this Jun 10, 2021
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@fniephaus @janehmueller