Is there any free OCaml to C translator? [closed]

问题

So I have nice OCaml code (50000 lines). I want to port it to C. So Is there any free OCaml to C translator?

回答1:

This probably isn't what you want, but you can get the OCaml compiler to dump its runtime code in C:

ocamlc -output-obj -o foo.c foo.ml

What you get is basically a static dump of the bytecode. The result will look something like:

#include <caml/mlvalues.h>
CAMLextern void caml_startup_code(
           code_t code, asize_t code_size,
           char *data, asize_t data_size,
           char *section_table, asize_t section_table_size,
           char **argv);
static int caml_code[] = {
0x00000054, 0x000003df, 0x00000029, 0x0000002a, 0x00000001, 0x00000000, 
/* ... */
}

static char caml_data[] = {
132, 149, 166, 190, 0, 0, 3, 153, 0, 0, 0, 118, 
/* ... */
};

static char caml_sections[] = {
132, 149, 166, 190, 0, 0, 21, 203, 0, 0, 0, 117, 
/* ... */
};

/* ... */

void caml_startup(char ** argv)
{
    caml_startup_code(caml_code, sizeof(caml_code),
                      caml_data, sizeof(caml_data),
                      caml_sections, sizeof(caml_sections),
                      argv);
}

You can compile it with

gcc -L/usr/lib/ocaml foo.c -lcamlrun -lm -lncurses

For more information, see the OCaml manual.

回答2:

There is an OCaml bytecode executable file to C source code compiler: https://github.com/ocaml-bytes/ocamlcc

So, first compile your code to a bytecode executable then use ocamlcc.

回答3:

The OCamlJS project would be a good starting point. It compiles OCaml to JavaScript; it should be possible to modify it to compile OCaml to ActionScript. Compiling to C would probably be more work - no garbage collection of any kind - but not impossible, particularly if Adobe Alchemy provides APIs to meet some of those needs.

回答4:

If I had some OCaml code I wanted to run client-side "in the browser" (which seems to be your intent based on comments with the question), I have to say my first thought would be to do one of

Use something like OcamlJava to compile OCaml to java bytecode and deploy that using Java web start or similar.
Port to F# (Microsoft version of OCaml) running on .NET and use whatever MS provides to web-deploy that.

And maybe if I was really crazy:

Port the OCaml interpreter (which I believe is implemented in 'C') to Flash using Alchemy and have it run the OCaml bytecode of my original (unported) code.

A two-stage OCaml-to-C, C-to-Flash doesn't really appeal though.

来源：https://stackoverflow.com/questions/2638664/is-there-any-free-ocaml-to-c-translator

标签

c++

ocaml