@Override
	public boolean isEquivalent(AssignAction op) {
		if (this.getClass() != op.getClass()) {
			return false;
		}
		ConvertToPointer otherAction = (ConvertToPointer) op;
		if (space == null && otherAction.space == null) {
			return true;
		}
		if (space == null || otherAction.space == null) {
			return false;
		}
		if (!space.equals(otherAction.space)) {
			return false;
		}
		return true;
	}
Action converting the parameter's data-type to a pointer, and assigning storage for the pointer.
This assumes the data-type is stored elsewhere and only the pointer is passed as a parameter.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/protorules/ConvertToPointer.java