16 lines
No EOL
463 B
Text
16 lines
No EOL
463 B
Text
# A place has a number of tokens, and that's it.
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PNPlaceState:Class
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PNPlaceState_numTokens:AttributeLink (PNPlaceState -> Integer) {
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name = "numTokens";
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optional = False;
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constraint = `"numTokens cannot be negative" if get_value(get_target(this)) < 0 else None`;
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}
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pn_of:Association (PNPlaceState -> PNPlace) {
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# one-to-one
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source_lower_cardinality = 1;
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source_upper_cardinality = 1;
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target_lower_cardinality = 1;
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target_upper_cardinality = 1;
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} |