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/* 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 "mozilla/Utf8.h"  // mozilla::Utf8Unit

#include "js/CompilationAndEvaluation.h"  // JS::EvaluateDontInflate
#include "js/SourceText.h"                // JS::Source{Ownership,Text}
#include "jsapi-tests/tests.h"

static bool CustomNative(JSContext* cx, unsigned argc, JS::Value* vp) {
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);

  MOZ_RELEASE_ASSERT(!JS_IsExceptionPending(cx));

  MOZ_RELEASE_ASSERT(!args.isConstructing());
  args.rval().setUndefined();
  MOZ_RELEASE_ASSERT(!args.isConstructing());

  return true;
}

BEGIN_TEST(testCallArgs_isConstructing_native) {
  CHECK(JS_DefineFunction(cx, global, "customNative", CustomNative, 0, 0));

  JS::CompileOptions opts(cx);
  opts.setFileAndLine(__FILE__, __LINE__ + 4);

  JS::RootedValue result(cx);

  static const char code[] = "new customNative();";
  JS::SourceText<mozilla::Utf8Unit> srcBuf;
  CHECK(srcBuf.init(cx, code, strlen(code), JS::SourceOwnership::Borrowed));

  CHECK(!JS::EvaluateDontInflate(cx, opts, srcBuf, &result));

  CHECK(JS_IsExceptionPending(cx));
  JS_ClearPendingException(cx);

  EVAL("customNative();", &result);
  CHECK(result.isUndefined());

  return true;
}
END_TEST(testCallArgs_isConstructing_native)

static bool CustomConstructor(JSContext* cx, unsigned argc, JS::Value* vp) {
  JS::CallArgs args = JS::CallArgsFromVp(argc, vp);

  MOZ_RELEASE_ASSERT(!JS_IsExceptionPending(cx));

  if (args.isConstructing()) {
    JSObject* obj = JS_NewPlainObject(cx);
    if (!obj) {
      return false;
    }

    args.rval().setObject(*obj);

    MOZ_RELEASE_ASSERT(args.isConstructing());
  } else {
    args.rval().setUndefined();

    MOZ_RELEASE_ASSERT(!args.isConstructing());
  }

  return true;
}

BEGIN_TEST(testCallArgs_isConstructing_constructor) {
  CHECK(JS_DefineFunction(cx, global, "customConstructor", CustomConstructor, 0,
                          JSFUN_CONSTRUCTOR));

  JS::RootedValue result(cx);

  EVAL("new customConstructor();", &result);
  CHECK(result.isObject());

  EVAL("customConstructor();", &result);
  CHECK(result.isUndefined());

  return true;
}
END_TEST(testCallArgs_isConstructing_constructor)