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"All steps have an implicit output port..." #684

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ndw opened this Issue Jan 3, 2019 · 1 comment

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ndw commented Jan 3, 2019

(I'm working my way through the spec, front-to-back. I'll put all the proposals for editorial changes in a single request (or maybe a couple requests), but I'm going to make issues for the non-editorial suggestions/questions I have.)

In 2.1, just before 2.1.1, we find:

Steps have “ports” into which inputs and outputs are connected. Each step has a number of input ports and a number of output ports; a step can have zero input ports and/or zero output ports. (All steps have an implicit output port for reporting errors that must not be declared.) The names of all ports on each step must be unique on that step (you can't have two input ports named “source”, nor can you have an input port named “schema” and an output port named “schema”).

I think we should remove that parenthetical reference to an implicit output port for errors. If we're not going to remove it, we have to say something about what it means!

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xml-project commented Jan 3, 2019

+1

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