alef 0.79.0

Opinionated polyglot binding generator for Rust libraries
Documentation 
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#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "{{ header }}"

typedef struct SampleContext {
    int released;
} SampleContext;

static char *sample_copy_string(const char *value) {
    size_t length = strlen(value) + 1;
    char *copy = malloc(length);
    if (copy != NULL) {
        memcpy(copy, value, length);
    }
    return copy;
}

static void sample_release_callback_string(char *value) {
    free(value);
}

static void sample_free_context(void *user_data) {
    SampleContext *context = user_data;
    if (context != NULL) {
        context->released = 1;
        free(context);
    }
}

{% for callback in callbacks %}
static {{ callback.return_type }} {{ callback.name }}({{ callback.params }}) {
{% for initializer in callback.initializers %}    {{ initializer }}
{% endfor %}    {{ callback.return_value | replace("\n", "\n    ") }}
}

{% endfor %}
int main(void) {
    SampleContext *context = calloc(1, sizeof(*context));
    if (context == NULL) {
        return EXIT_FAILURE;
    }
    {{ vtable_type }} vtable = {
{% for callback in callbacks %}        .{{ callback.field }} = {{ callback.name }},
{% endfor %}        .free_string = sample_release_callback_string,
        .free_user_data = sample_free_context,
    };
    char *error = NULL;
    int32_t status = {{ register_symbol }}("test-backend", &vtable, context, &error);
    if (status != 0) {
        {{ free_string_symbol }}(error);
        return EXIT_FAILURE;
    }
{% if unregister_symbol %}    status = {{ unregister_symbol }}("test-backend", &error);
    if (status != 0) {
        {{ free_string_symbol }}(error);
        return EXIT_FAILURE;
    }
{% endif %}    return EXIT_SUCCESS;
}