1===================== 2TableGen Deficiencies 3===================== 4 5.. contents:: 6 :local: 7 8Introduction 9============ 10 11Despite being very generic, TableGen has some deficiencies that have been 12pointed out numerous times. The common theme is that, while TableGen allows 13you to build Domain-Specific-Languages, the final languages that you create 14lack the power of other DSLs, which in turn increase considerably the size 15and complexity of TableGen files. 16 17At the same time, TableGen allows you to create virtually any meaning of 18the basic concepts via custom-made back-ends, which can pervert the original 19design and make it very hard for newcomers to understand it. 20 21There are some in favour of extending the semantics even more, but making sure 22back-ends adhere to strict rules. Others suggesting we should move to more 23powerful DSLs designed with specific purposes, or even re-using existing 24DSLs. 25 26Known Problems 27============== 28 29TODO: Add here frequently asked questions about why TableGen doesn't do 30what you want, how it might, and how we could extend/restrict it to 31be more use friendly. 32