Writing a macro generates code utilizing NamedTuple whose value is calculated

[runapp]

I'm writing a macro tha packs it's parameter and @FILE into a NamedTuple and push it into a Vector, like this:

testvec=Vector{NamedTuple{(:f,:s),Tuple{Int,String}}}()
# push!(testvec,(f=0,s="abc"))
macro testm(a)
    return quote
        b=a+1
        push!(testvec,$(esc(
            (f=b,s=@__FILE__)
        )))
    end
end
@testm 2

My think is to try avoiding other ways than esc to prevent f and s from being renamed, or to make b work in escaped environment. However I tried $(esc(b))=a+1 and other escape forms, with none of them succeeded.

Any suggestions?

[KristofferC]

Please use https://discourse.julialang.org/ for general Julia questions.

[runapp]

Forget about it.
Finally got $(esc(begin b=a+1 end)) to work.
I post it here rather than asking on discourse or StackOverflow only to see if anybody wants some new syntax to make it more elegent, such as makes global accept symbols.

[JeffBezanson]

I think there is also a hygiene bug here though:

julia> macro id(x)
       x
       end
@id (macro with 1 method)

julia> @id (a=1,)
(#12#a = 1,)