This code "does the trick" (except in Playground) :
https://play.golang.org/p/kJAfNFZUev
$ go run macro.go
dump(a + b) = 14
dump(b * a) = 40
$ go build -o macro
$ ./macro
dump(a + b) = 14
dump(b * a) = 40
Read current stacktrace, extract source file path, read source file,
extract textual (uncompiled) expression.
Disclaimer : I have no idea what I'm talking about
On Friday, July 22, 2016 at 2:28:19 PM UTC+2, sq...@google.com wrote:
>
> I've used this macro or some variant thereof in C/C++ for years:
>
> #define dump(x) printf("%s %d: %s = %d\n", __func__, __LINE__, #x,
> (int)(x))
>
> The "#x" is the really useful part that lets you print the original
> expression. For example, if int a = 4 and int b = 10:
>
> dump(a + b); // Prints "a + b = 14"
>
> Is there a way to do this in Go?
>
>
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