Language Binding Generator

For help：

python binding.py -h

Now only Duktape supported.

Syntax

include

[include]
system = ["stdio.h", "stdbool.h"]
custom = ["string.h", "demo.h"]

Generated：

#include <stdio.h>
#include <stdbool.h>

#include "string.h"
#include "demo.h"

Gloabal function

[global.function]
# This 'void' means ignore the return value in generated code
print="void printf(const char *)"

Generated：

duk_push_c_function(ctx, js_print, 1);
duk_put_global_string(ctx, "print");

Usage in JavaScript:

print('Hello -- from Bindgen!\n')

Global constant

[global.const]
MAXJOBS=16

Generated：

duk_push_int(ctx, 16);
duk_put_global_string(ctx, "MAXJOBS");

Usage in JavaScript:

print(MAXJOBS)

Module organization

JavaScript/Wasm has the concept of module,

[console.function]
log='void printf(const char *)'

[console.const]
INFO='Information'

Generated：

duk_push_object(ctx);
idx = duk_get_top_index(ctx);
duk_push_string(ctx, "log");
duk_push_c_function(ctx, js_log, 1);
duk_def_prop(ctx, idx, DUK_DEFPROP_HAVE_VALUE);
duk_push_string(ctx, "sum");
duk_push_c_function(ctx, js_sum, 3);
duk_def_prop(ctx, idx, DUK_DEFPROP_HAVE_VALUE);
duk_push_string(ctx, "INFO");
duk_push_string(ctx, "Information");
duk_def_prop(ctx, idx, DUK_DEFPROP_HAVE_VALUE);
duk_put_global_string(ctx, "console");

JavaScript:

console.log(console.INFO)