Mercurial > molko
view src/libmlk-core-js/core/js-panic.c @ 396:c9769a77ad8c
ui: avoid copying theme
author | David Demelier <markand@malikania.fr> |
---|---|
date | Fri, 18 Feb 2022 16:14:06 +0100 |
parents | 460c78706989 |
children |
line wrap: on
line source
/* * js-panic.c -- core panic binding * * Copyright (c) 2020-2022 David Demelier <markand@malikania.fr> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> #include <stdio.h> #include <core/panic.h> #include "js-panic.h" #define PANIC_CB DUK_HIDDEN_SYMBOL("Mlk.panicHandler") static void handler(void) { duk_context *ctx = panic_data; duk_push_global_stash(ctx); duk_get_prop_string(ctx, -1, PANIC_CB); duk_remove(ctx, -2); if (duk_is_callable(ctx, -1)) { duk_call(ctx, 0); duk_pop(ctx); } else { fprintf(stderr, "abort: javascript panic handler not callable\n"); exit(1); } } static duk_ret_t Mlk_panic(duk_context *ctx) { if (duk_get_top(ctx) >= 1) panicf("%s", duk_to_string(ctx, 0)); else panic(); return 0; } static duk_ret_t Mlk_setPanic(duk_context *ctx) { if (!duk_is_callable(ctx, 0)) return duk_error(ctx, DUK_ERR_TYPE_ERROR, "handler not callable"); duk_push_global_stash(ctx); duk_dup(ctx, 0); duk_put_prop_string(ctx, -2, PANIC_CB); duk_pop(ctx); panic_handler = handler; panic_data = ctx; return 0; } static const duk_function_list_entry functions[] = { { "panic", Mlk_panic, DUK_VARARGS }, { "setPanic", Mlk_setPanic, 1 }, { NULL, NULL, 0 } }; void js_panic_bind(duk_context *ctx) { assert(ctx); duk_get_global_string(ctx, "Mlk"); duk_put_function_list(ctx, -1, functions); duk_pop(ctx); }