Is it possible to have a rule forward to another rule? about buck2 HOT 4 CLOSED

You can make a macro.

def wrapped_cxx_library(srcs=[], **kwargs):
    srcs.append("file.hh")
    native.cxx_library(srcs = srcs, **kwargs)

You don't need to return anything, rules don't return anything when you call them anyway (only the impl functions do). You can call multiple rules, and connect up the outputs of one to the inputs of the other, by constructing

whatever = "{}-whatever".format(name)
native.cxx_library(name = whatever, ...)

native.cxx_library(..., deps = kwargs.pop("deps") + [":{}".format(whatever)], **kwargs)

from buck2.

I'm using macros for this purpose right now, and it generally works ok but sometimes I wish I had access to some of the things in a rule impl's context structure.

from buck2.

The inner() function is a function that declares a target (and does a bunch of other stuff). As the error message indicates, you cannot do that during analysis. You could, however, call the _inner_impl() function if you wanted.

from buck2.

Yea, unfortunately I can't do that unless I have access to the impl. So I can't do it, for example, if I want to forward to cxx_library. In any case, I can continue with just using macros, I can still solve the problem I was having, just not as nicely as if I had the full power of a rule.

from buck2.