vm: stop executing bytecode on return of nested calls #72
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When a managed function is indirectly invoked during bytecode execution, e.g. when calling the tostring() method of an object prototype during string concatenation, the invoked function must stop executing bytecode upon return to hand control back to caller. Extend `uc_vm_execute_chunk()` to track the amount of nested function calls it performs and hand back control to the caller once the toplevel callframe returns. Also bubble unhandled exceptions only as far as up to the original caller. Signed-off-by: Jo-Philipp Wich <[email protected]>
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When a managed function is indirectly invoked during bytecode execution,
e.g. when calling the tostring() method of an object prototype during
string concatenation, the invoked function must stop executing bytecode
upon return to hand control back to caller.
Extend
uc_vm_execute_chunk()to track the amount of nested functioncalls it performs and hand back control to the caller once the toplevel
callframe returns. Also bubble unhandled exceptions only as far as up
to the original caller.
Signed-off-by: Jo-Philipp Wich [email protected]