memviz [](https://travis-ci.org/bradleyjkemp/memviz) [](https://coveralls.io/github/bradleyjkemp/memviz?branch=master) [](https://goreportcard.com/report/github.com/bradleyjkemp/memviz) [](https://godoc.org/github.com/bradleyjkemp/memviz)

November 7, 2020 · View on GitHub

How would you rather debug a data structure?

"Pretty" printed

Visual graph

(*test.fib)(0xc04204a5a0)({
 index: (int) 5,
 prev: (*test.fib)(0xc04204a580)({
  index: (int) 4,
  prev: (*test.fib)(0xc04204a560)({
   index: (int) 3,
   prev: (*test.fib)(0xc04204a540)({
    index: (int) 2,
    prev: (*test.fib)(0xc04204a520)({
     index: (int) 1,
     prev: (*test.fib)(0xc04204a500)({
      index: (int) 0,
      prev: (*test.fib)(),
      prevprev: (*test.fib)()
     }),
     prevprev: (*test.fib)()
    }),
    prevprev: (*test.fib)(0xc04204a500)({
     index: (int) 0,
     prev: (*test.fib)(),
     prevprev: (*test.fib)()
    })
   }),
   .
   .
   .

Usage

memviz takes a pointer to an arbitrary data structure and generates output that can be used to generate an easy to understand diagram using graphviz.

To generate a diagram, first you will need to install graphviz on your system following the instructions here.

Next, use memviz.Map(out, &data) to generate a graphviz dot file and then pipe the output into graphviz.

For examples of how to use memviz, see the code sample in the example folder and the tests in memviz_test.go.