mkxp/binding-mruby/binding-util.cpp

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/*
** binding-util.cpp
**
** This file is part of mkxp.
**
** Copyright (C) 2013 - 2021 Amaryllis Kulla <ancurio@mapleshrine.eu>
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**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
*/
#include "binding-util.h"
#include "util.h"
#include "exception.h"
#include <string.h>
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#define SYMD(symbol) { CS##symbol, #symbol }
struct
{
CommonSymbol ind;
const char *str;
} static const symData[] =
{
SYMD(font),
SYMD(viewport),
SYMD(bitmap),
SYMD(color),
SYMD(out_color),
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SYMD(tone),
SYMD(rect),
SYMD(src_rect),
SYMD(tilemap),
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SYMD(tileset),
SYMD(autotiles),
SYMD(map_data),
SYMD(flash_data),
SYMD(priorities),
SYMD(windowskin),
SYMD(contents),
SYMD(cursor_rect),
SYMD(path),
SYMD(array),
SYMD(default_color),
SYMD(default_out_color),
SYMD(children),
SYMD(_mkxp_dispose_alias)
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};
static elementsN(symData);
struct MrbExcData
{
MrbException ind;
const char *str;
};
static const MrbExcData excData[] =
{
{ Shutdown, "SystemExit" },
{ PHYSFS, "PHYSFSError" },
{ SDL, "SDLError" },
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{ MKXP, "MKXPError" },
{ IO, "IOError" }
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};
static elementsN(excData);
#define ENO(id) { Errno##id, #id }
static const MrbExcData enoExcData[] =
{
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ENO(E2BIG),
ENO(EACCES),
ENO(EAGAIN),
ENO(EBADF),
ENO(ECHILD),
ENO(EDEADLOCK),
ENO(EDOM),
ENO(EEXIST),
ENO(EINVAL),
ENO(EMFILE),
ENO(ENOENT),
ENO(ENOEXEC),
ENO(ENOMEM),
ENO(ENOSPC),
ENO(ERANGE),
ENO(EXDEV)
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};
static elementsN(enoExcData);
MrbData::MrbData(mrb_state *mrb)
{
int arena = mrb_gc_arena_save(mrb);
for (size_t i = 0; i < excDataN; ++i)
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exc[excData[i].ind] = mrb_define_class(mrb, excData[i].str, mrb->eException_class);
exc[RGSS] = mrb_define_class(mrb, "RGSSError", mrb->eStandardError_class);
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RClass *errnoMod = mrb_define_module(mrb, "Errno");
for (size_t i = 0; i < enoExcDataN; ++i)
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exc[enoExcData[i].ind] =
mrb_define_class_under(mrb, errnoMod, enoExcData[i].str, mrb->eStandardError_class);
exc[TypeError] = mrb_class_get(mrb, "TypeError");
exc[ArgumentError] = mrb_class_get(mrb, "ArgumentError");
for (size_t i = 0; i < symDataN; ++i)
symbols[symData[i].ind] = mrb_intern_cstr(mrb, symData[i].str);
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mrb_gc_arena_restore(mrb, arena);
}
/* Indexed with Exception::Type */
static const MrbException excToMrbExc[] =
{
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RGSS, /* RGSSError */
ErrnoENOENT, /* NoFileError */
IO,
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TypeError,
ArgumentError,
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PHYSFS, /* PHYSFSError */
SDL, /* SDLError */
MKXP /* MKXPError */
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};
void raiseMrbExc(mrb_state *mrb, const Exception &exc)
{
MrbData *data = getMrbData(mrb);
RClass *excClass = data->exc[excToMrbExc[exc.type]];
mrb_raise(mrb, excClass, exc.msg.c_str());
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}
void
raiseDisposedAccess(mrb_state *mrb, mrb_value self)
{
const char *klassName = DATA_TYPE(self)->struct_name;
char buf[32];
strncpy(buf, klassName, sizeof(buf));
buf[0] = tolower(buf[0]);
mrb_raisef(mrb, getMrbData(mrb)->exc[RGSS],
"disposed %S", mrb_str_new_cstr(mrb, buf));
}
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MRB_METHOD_PUB(inspectObject)
{
static char buffer[64];
snprintf(buffer, sizeof(buffer), "#<%s:%p>", DATA_TYPE(self)->struct_name, DATA_PTR(self));
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return mrb_str_new_cstr(mrb, buffer);
}