How to include stack trace when doing print debugging

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1

While using print debugging, is it also possible to print the stack trace?

This is to help see the path the code took until the print.

2

You can use

std.debug.dumpCurrentStackTrace(null);

e.g.:

const std = @import("std");

fn test1() void {
    test2();
}

fn test2() void {
    test3();
}

fn test3() void {
    std.debug.dumpCurrentStackTrace(null);
}

pub fn main() void {
    test1();
}
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3

You can also use the @errorReturnTrace() builtin:

const std = @import("std");

pub fn main() !void {
    std.testing.expect(false) catch {
        if (@errorReturnTrace()) |trace| {
            std.debug.dumpStackTrace(trace.*);
        }
    };
}
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