/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "gdb-tests.h"
#include "jsapi.h"
#include "jsfriendapi.h"
#include "js/Context.h"
#include "js/GlobalObject.h"
#include "js/Initialization.h"
#include "js/RealmOptions.h"
#include "js/Warnings.h"  // JS::SetWarningReporter

using namespace JS;

/* The class of the global object. */
static const JSClass global_class = {"global", JSCLASS_GLOBAL_FLAGS,
                                     &DefaultGlobalClassOps};

static volatile int dontOptimizeMeAway = 0;

void usePointer(const void* ptr) { dontOptimizeMeAway = 1; }

template <typename T>
static inline T* checkPtr(T* ptr) {
  if (!ptr) {
    abort();
  }
  return ptr;
}

static void checkBool(bool success) {
  if (!success) {
    abort();
  }
}

/* The warning reporter callback. */
void reportWarning(JSContext* cx, JSErrorReport* report) {
  fprintf(stderr, "%s:%u: %s\n",
          report->filename ? report->filename : "<no filename>",
          (unsigned int)report->lineno, report->message().c_str());
}

// prologue.py sets a breakpoint on this function; test functions can call it
// to easily return control to GDB where desired.
void breakpoint() {
  // If we leave this function empty, the linker will unify it with other
  // empty functions throughout SpiderMonkey. If we then set a GDB
  // breakpoint on it, that breakpoint will hit at all sorts of random
  // times. So make it perform a distinctive side effect.
  fprintf(stderr, "Called " __FILE__ ":breakpoint\n");
}

GDBFragment* GDBFragment::allFragments = nullptr;

int main(int argc, const char** argv) {
  if (!JS_Init()) return 1;
  JSContext* cx = checkPtr(JS_NewContext(1024 * 1024));

  JS_SetGCParameter(cx, JSGC_MAX_BYTES, 0xffffffff);

  checkBool(JS::InitSelfHostedCode(cx));
  JS::SetWarningReporter(cx, reportWarning);

  /* Create the global object. */
  JS::RealmOptions options;
  RootedObject global(
      cx, checkPtr(JS_NewGlobalObject(cx, &global_class, nullptr,
                                      JS::FireOnNewGlobalHook, options)));
  JSAutoRealm ar(cx, global);

  argv++;
  while (*argv) {
    const char* name = *argv++;
    GDBFragment* fragment;
    for (fragment = GDBFragment::allFragments; fragment;
         fragment = fragment->next) {
      if (strcmp(fragment->name(), name) == 0) {
        fragment->run(cx, argv);
        break;
      }
    }
    if (!fragment) {
      fprintf(stderr, "Unrecognized fragment name: %s\n", name);
      exit(1);
    }
  }

  return 0;
}