dummy ast node error

[eHammarstrom]

The following code,

#include <stdio.h>

static void a(void)
{
    printf("a\n");
}

static void b(void)
{
    printf("b\n");
}

static void x(int y)
{
    if (y > 0) {
        return a();
    } else {
        return b();
    }
}

int main(void)
{
    int y;
    scanf("%d", &y);

    x(y);
}

With the following parameters,

cxx2flow test.c x | dot -Tpng -o test.png

Results in this output,

Error: cxx2flow::unexpected_dummy_ast

  × unexpected dummy ast node
    ╭─[test.c:15:1]
 15 │             return a();
 16 │ ╭─▶     } else {
 17 │ │           return b();
 18 │ ├─▶     }
    · ╰──── dummy ast node here
 19 │     }
    ╰────
  help: dummy node found in the ast
        this might be a bug, please report it to the author

[Enter-tainer]

it runs on my machine...

[Enter-tainer]

there are also people reporting this in #42. Which version are you using? can you update the source file here? Can you also try compile it from source and see if it is working?

[eHammarstrom]

This is my version output,

cxx2flow
Build Timestamp:     2024-01-27T16:43:10.723665879Z
Build Version:       0.6.1
Commit SHA:          Some("00c7aec26e7babc1a9de50c53a5b48e6620871b3")
Commit Date:         Some("2023-12-18T19:56:54Z")
Commit Branch:       Some("main")
Cargo Target Triple: x86_64-unknown-linux-gnu
Cargo Profile:       release

I built it from cargo install just a couple of days ago.

Are there perhaps any requirements on any external dependencies at build time?

[Enter-tainer]

maybe try cargo install --locked ? cargo install doesn't respect lock file and it might use a different version of tree-sitter

[eHammarstrom]

That works. I didn't know about it not respecting the lock file, thanks for sharing.