Trees although better in general than template still have one critical
disadvantage: it is hard to control a code they produces.I tried approaches
with templates, line by line and trees. Line by line is generally the best
of them.
понедельник, 20 сентября 2021 г. в 23:15:22 UTC+3,
Yes. Generating large portions of code via templates is going to be hard.
Especially reusing and maintaining it.
There is an excellent library called jennifer -
https://github.com/dave/jennifer that lets you generate Go code by building
the syntax tree. The examples make it super simple to get
I'm writing a code generator from protobuf via templates and i can say -
debugging it is very hard. When you have big files you can't check syntax
easily, don't know how it looks and if you have errors in the template it
is really hard to fix them.
So the protoc-gen-go case is preferable.
вс, 19
Templates is the worst approach to code generation IMO. Take a look how
they do this in protoc-gen-go:
https://github.com/protocolbuffers/protobuf-go/blob/b92717ecb630d4a4824b372bf98c729d87311a4d/cmd/protoc-gen-go/internal_gengo/main.go#L83
I am using very similar approach, albeit I prefer
