pce-exception_handlers

pce <- exception_handlers: sheet

Sheet with exception handlers used by pce->exception. Each entry of this sheet maps an exception-name onto a code object which is executed when the corresponding exception occurs. The argument bindings for @arg1, ... are the second, ... argument passed to pce->exception. The following exceptions are currently defined:

undefined_class An attempt is made to reference an non-existing class while doing one of the following:
Create an object
Load an object from file using source_sink<-object
Create a subclass
```
Parameters:

        @arg1:		class name
```
undefined_error Called from error<-convert if the error id is not in @errors. If defined, it should create an error object with the requested identifier.
Parameters:
```
@arg1: 		identifier of missing error object.
```
undefined_assoc An attempt is made to resolve a symbolic reference (i.e. @pce), but the reference is unknown. Parameters:
```
@arg1:		reference name
```
redefined_assoc An attempt is made to create an object with the same symbolic reference as an already existing object. Parameters:
```
@arg1:		The existing reference name
```
initialisation_failed The pce->initialisation method for some instance failed. Parameters:
```
@arg1:		The (partial) instance
@arg2 ...	The arguments given to ->initialise
```
See also
pce->exception