Re: Graph of elisp function calls

[Rodrigo Morales <moralesrodrigo1100@gmail.com>]

I'm not aware of a built-in function to do this, but if I had to write
code to do that. This is how I would do it:

1. Write a function Elisp that gets a tree representation of function
calls (just as `M-x profiler-report` does)
2. Output the three representation as a set of edges (just as the
command `guix graph` does)

```
$ guix graph -t references
/gnu/store/h1yiaimhmg0zf5p3czv
5xgj7ksqp527z-tesseract-ocr-5.3.0
```
```
digraph "Guix references" {
  "/gnu/store/h1yiaimhmg0zf5p3czv5xgj7ksqp527z-tesseract-ocr-5.3.0"
[label = "tesseract-ocr-5.3.0", shape = box, fontname = sans];
  "/gnu/store/h1yiaimhmg0zf5p3czv5xgj7ksqp527z-tesseract-ocr-5.3.0" ->
"/gnu/store/0hvkv5kvrk7ix29pfnbkyppbdxa7ki7n-libx11-1.8.1" [color =
magenta];
  (...some omitted lines...)
  "/gnu/store/h1yiaimhmg0zf5p3czv5xgj7ksqp527z-tesseract-ocr-5.3.0" ->
"/gnu/store/z8kgahaarjpl0b1nzpqmzyrm4bbmnxw3-libxext-1.3.4" [color =
magenta];
  "/gnu/store/h1yiaimhmg0zf5p3czv5xgj7ksqp527z-tesseract-ocr-5.3.0" ->
"/gnu/store/zkxvwia0z25409k1kmm0jqzfk9prc8fx-libpng-1.6.37" [color =
magenta];
  "/gnu/store/0hvkv5kvrk7ix29pfnbkyppbdxa7ki7n-libx11-1.8.1" [label =
"libx11-1.8.1", shape = box, fontname = sans];
  "/gnu/store/0hvkv5kvrk7ix29pfnbkyppbdxa7ki7n-libx11-1.8.1" ->
"/gnu/store/0hvkv5kvrk7ix29pfnbkyppbdxa7ki7n-libx11-1.8.1" [color =
magenta];
  (...some omitted lines...)
  "/gnu/store/0hvkv5kvrk7ix29pfnbkyppbdxa7ki7n-libx11-1.8.1" ->
"/gnu/store/yilf64y14qciml3kkj3506i3n2gmaawb-libxau-1.0.10" [color =
magenta];
  "/gnu/store/930nwsiysdvy2x5zv1sf6v7ym75z8ayk-gcc-11.3.0-lib" [label
= "gcc-11.3.0-lib", shape = box, fontname = sans];
  (...some omitted lines...)
}
```

3. Display the graph information in any way I might find convenient.
One way would be to use xdot.

```
$ guix graph -t references
/gnu/store/h1yiaimhmg0zf5p3czv5xgj7ksqp527z-tesseract-ocr-5.3.0 | xdot
-f fdp -
```

There's nothing impossible in Emacs as long as you have enough
knowledge and time.

On Mon, 28 Aug 2023 at 19:15, uzibalqa <uzibalqa@proton.me> wrote:
>
>
> Is it possible to produce a graph of elisp function calls ?
>
>
>