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Error Management
GB_ERR_ARG Bad argument error
GB.Error Signals an error.
GB.Propagate Propagates an error.
GB_ERR_TYPE Type mismatch error

Overview

When you have to abort a native method or property, and raise an error, just call the GB.Error function. But be careful! You must then return manually from the function.

There are some predefined error constants: GB_ERR_ARG and GB_ERR_TYPE.