public Collection<AssemblyConstructorSemantic> getSemantics(AssemblyProduction prod) {
		return Collections.unmodifiableCollection(
			semanticsByProduction.computeIfAbsent(prod, p -> new TreeMap<>()).values());
	}
Get the semantics associated with a given production

@param prod the production
@return all semantics associated with the given production
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/assembler/sleigh/grammars/AssemblyGrammar.java