This example shows how you can write a rule that generates code that gets consumed by another rule.
The overall concept is that:
- your code generator has one or more inputs
- which produce one or more outputs in some source language
- which are consumed by a
cc_library(or other language) rule
This example will take a text file as input to create some
sources in C++ and Python. Those are, in turn, used to create
cc_library and py_library targets that others can consume.
Try it:
bazel run :p_maybe
bazel run :c_maybe
It should print 'MAYBE is 3'.