1 files changed, 315 insertions, 0 deletions
diff --git a/dom/bindings/test/TestFunctions.cpp b/dom/bindings/test/TestFunctions.cpp
new file mode 100644
index 0000000000..c50b408704
--- /dev/null
+++ b/dom/bindings/test/TestFunctions.cpp
@@ -0,0 +1,315 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/dom/BindingUtils.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/TestFunctions.h"
+#include "mozilla/dom/TestFunctionsBinding.h"
+#include "mozilla/dom/WindowBinding.h"
+#include "mozilla/dom/WrapperCachedNonISupportsTestInterface.h"
+#include "nsStringBuffer.h"
+#include "mozITestInterfaceJS.h"
+#include "nsComponentManagerUtils.h"
+#include "nsGlobalWindowInner.h"
+
+namespace mozilla::dom {
+
+/* static */
+TestFunctions* TestFunctions::Constructor(GlobalObject& aGlobal) {
+  return new TestFunctions;
+}
+
+/* static */
+void TestFunctions::ThrowUncatchableException(GlobalObject& aGlobal,
+                                              ErrorResult& aRv) {
+  aRv.ThrowUncatchableException();
+}
+
+/* static */
+Promise* TestFunctions::PassThroughPromise(GlobalObject& aGlobal,
+                                           Promise& aPromise) {
+  return &aPromise;
+}
+
+/* static */
+already_AddRefed<Promise> TestFunctions::PassThroughCallbackPromise(
+    GlobalObject& aGlobal, PromiseReturner& aCallback, ErrorResult& aRv) {
+  return aCallback.Call(aRv);
+}
+
+void TestFunctions::SetStringData(const nsAString& aString) {
+  mStringData = aString;
+}
+
+void TestFunctions::GetStringDataAsAString(nsAString& aString) {
+  aString = mStringData;
+}
+
+void TestFunctions::GetStringDataAsAString(uint32_t aLength,
+                                           nsAString& aString) {
+  MOZ_RELEASE_ASSERT(aLength <= mStringData.Length(),
+                     "Bogus test passing in a too-big length");
+  aString.Assign(mStringData.BeginReading(), aLength);
+}
+
+void TestFunctions::GetStringDataAsDOMString(const Optional<uint32_t>& aLength,
+                                             DOMString& aString) {
+  uint32_t length;
+  if (aLength.WasPassed()) {
+    length = aLength.Value();
+    MOZ_RELEASE_ASSERT(length <= mStringData.Length(),
+                       "Bogus test passing in a too-big length");
+  } else {
+    length = mStringData.Length();
+  }
+
+  nsStringBuffer* buf = nsStringBuffer::FromString(mStringData);
+  if (buf) {
+    aString.SetKnownLiveStringBuffer(buf, length);
+    return;
+  }
+
+  // We better have an empty mStringData; otherwise why did we not have a string
+  // buffer?
+  MOZ_RELEASE_ASSERT(length == 0, "Why no stringbuffer?");
+  // No need to do anything here; aString is already empty.
+}
+
+void TestFunctions::GetShortLiteralString(nsAString& aString) {
+  // JS inline strings can hold 2 * sizeof(void*) chars, which on 32-bit means 8
+  // chars.  Return fewer than that.
+  aString.AssignLiteral(u"012345");
+}
+
+void TestFunctions::GetMediumLiteralString(nsAString& aString) {
+  // JS inline strings are at most 2 * sizeof(void*) chars, so at most 16 on
+  // 64-bit.  FakeString can hold 63 chars in its inline buffer (plus the null
+  // terminator).  Let's return 40 chars; that way if we ever move to 128-bit
+  // void* or something this test will still be valid.
+  aString.AssignLiteral(u"0123456789012345678901234567890123456789");
+}
+
+void TestFunctions::GetLongLiteralString(nsAString& aString) {
+  // Need more than 64 chars.
+  aString.AssignLiteral(
+      u"0123456789012345678901234567890123456789"  // 40
+      "0123456789012345678901234567890123456789"   // 80
+  );
+}
+
+void TestFunctions::GetStringbufferString(const nsAString& aInput,
+                                          nsAString& aRetval) {
+  // We have to be a bit careful: if aRetval is an autostring, if we just assign
+  // it won't cause stringbuffer allocation.  So we have to round-trip through
+  // something that definitely causes a stringbuffer allocation.
+  nsString str;
+  // Can't use operator= here, because if aInput is a literal string then str
+  // would end up the same way.
+  str.Assign(aInput.BeginReading(), aInput.Length());
+
+  // Now we might end up hitting our external string cache and getting the wrong
+  // sort of external string, so replace the last char by a different value
+  // (replacing, not just appending, to preserve the length).  If we have an
+  // empty string, our caller screwed up and there's not much we can do for
+  // them.
+  if (str.Length() > 1) {
+    char16_t last = str[str.Length() - 1];
+    str.Truncate(str.Length() - 1);
+    if (last == 'x') {
+      str.Append('y');
+    } else {
+      str.Append('x');
+    }
+  }
+
+  // Here we use operator= to preserve stringbufferness.
+  aRetval = str;
+}
+
+StringType TestFunctions::GetStringType(const nsAString& aString) {
+  if (aString.IsLiteral()) {
+    return StringType::Literal;
+  }
+
+  if (nsStringBuffer::FromString(aString)) {
+    return StringType::Stringbuffer;
+  }
+
+  if (aString.GetDataFlags() & nsAString::DataFlags::INLINE) {
+    return StringType::Inline;
+  }
+
+  return StringType::Other;
+}
+
+bool TestFunctions::StringbufferMatchesStored(const nsAString& aString) {
+  return nsStringBuffer::FromString(aString) &&
+         nsStringBuffer::FromString(aString) ==
+             nsStringBuffer::FromString(mStringData);
+}
+
+void TestFunctions::TestThrowNsresult(ErrorResult& aError) {
+  nsCOMPtr<mozITestInterfaceJS> impl =
+      do_CreateInstance("@mozilla.org/dom/test-interface-js;1");
+  aError = impl->TestThrowNsresult();
+}
+
+void TestFunctions::TestThrowNsresultFromNative(ErrorResult& aError) {
+  nsCOMPtr<mozITestInterfaceJS> impl =
+      do_CreateInstance("@mozilla.org/dom/test-interface-js;1");
+  aError = impl->TestThrowNsresultFromNative();
+}
+
+already_AddRefed<Promise> TestFunctions::ThrowToRejectPromise(
+    GlobalObject& aGlobal, ErrorResult& aError) {
+  aError.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
+  return nullptr;
+}
+
+int32_t TestFunctions::One() const { return 1; }
+
+int32_t TestFunctions::Two() const { return 2; }
+
+void TestFunctions::SetClampedNullableOctet(const Nullable<uint8_t>& aOctet) {
+  mClampedNullableOctet = aOctet;
+}
+
+Nullable<uint8_t> TestFunctions::GetClampedNullableOctet() const {
+  return mClampedNullableOctet;
+}
+
+void TestFunctions::SetEnforcedNullableOctet(const Nullable<uint8_t>& aOctet) {
+  mEnforcedNullableOctet = aOctet;
+}
+
+Nullable<uint8_t> TestFunctions::GetEnforcedNullableOctet() const {
+  return mEnforcedNullableOctet;
+}
+
+void TestFunctions::SetArrayBufferView(const ArrayBufferView& aBuffer) {}
+
+void TestFunctions::GetArrayBufferView(JSContext* aCx,
+                                       JS::Handle<JSObject*> aObj,
+                                       JS::MutableHandle<JSObject*> aRetval,
+                                       ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetAllowSharedArrayBufferView(
+    const ArrayBufferView& aBuffer) {}
+
+void TestFunctions::GetAllowSharedArrayBufferView(
+    JSContext* aCx, JS::Handle<JSObject*> aObj,
+    JS::MutableHandle<JSObject*> aRetval, ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetSequenceOfArrayBufferView(
+    const Sequence<ArrayBufferView>& aBuffers) {}
+
+void TestFunctions::GetSequenceOfArrayBufferView(JSContext* aCx,
+                                                 JS::Handle<JSObject*> aObj,
+                                                 nsTArray<JSObject*>& aRetval,
+                                                 ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetSequenceOfAllowSharedArrayBufferView(
+    const Sequence<ArrayBufferView>& aBuffers) {}
+
+void TestFunctions::GetSequenceOfAllowSharedArrayBufferView(
+    JSContext* aCx, JS::Handle<JSObject*> aObj, nsTArray<JSObject*>& aRetval,
+    ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetArrayBuffer(const ArrayBuffer& aBuffer) {}
+
+void TestFunctions::GetArrayBuffer(JSContext* aCx, JS::Handle<JSObject*> aObj,
+                                   JS::MutableHandle<JSObject*> aRetval,
+                                   ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetAllowSharedArrayBuffer(const ArrayBuffer& aBuffer) {}
+
+void TestFunctions::GetAllowSharedArrayBuffer(
+    JSContext* aCx, JS::Handle<JSObject*> aObj,
+    JS::MutableHandle<JSObject*> aRetval, ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetSequenceOfArrayBuffer(
+    const Sequence<ArrayBuffer>& aBuffers) {}
+
+void TestFunctions::GetSequenceOfArrayBuffer(JSContext* aCx,
+                                             JS::Handle<JSObject*> aObj,
+                                             nsTArray<JSObject*>& aRetval,
+                                             ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::SetSequenceOfAllowSharedArrayBuffer(
+    const Sequence<ArrayBuffer>& aBuffers) {}
+
+void TestFunctions::GetSequenceOfAllowSharedArrayBuffer(
+    JSContext* aCx, JS::Handle<JSObject*> aObj, nsTArray<JSObject*>& aRetval,
+    ErrorResult& aError) {
+  aError.Throw(NS_ERROR_NOT_IMPLEMENTED);
+}
+
+void TestFunctions::TestNotAllowShared(const ArrayBufferView& aBuffer) {}
+
+void TestFunctions::TestNotAllowShared(const ArrayBuffer& aBuffer) {}
+
+void TestFunctions::TestNotAllowShared(const nsAString& aBuffer) {}
+
+void TestFunctions::TestAllowShared(const ArrayBufferView& aBuffer) {}
+
+void TestFunctions::TestAllowShared(const ArrayBuffer& aBuffer) {}
+
+void TestFunctions::TestDictWithAllowShared(
+    const DictWithAllowSharedBufferSource& aDict) {}
+
+void TestFunctions::TestUnionOfBuffferSource(
+    const ArrayBufferOrArrayBufferViewOrString& aUnion) {}
+
+void TestFunctions::TestUnionOfAllowSharedBuffferSource(
+    const MaybeSharedArrayBufferOrMaybeSharedArrayBufferView& aUnion) {}
+
+bool TestFunctions::ObjectFromAboutBlank(JSContext* aCx, JSObject* aObj) {
+  // We purposefully don't use WindowOrNull here, because we want to
+  // demonstrate the incorrect behavior we get, not just fail some asserts.
+  RefPtr<nsGlobalWindowInner> win;
+  UNWRAP_MAYBE_CROSS_ORIGIN_OBJECT(Window, aObj, win, aCx);
+  if (!win) {
+    return false;
+  }
+
+  Document* doc = win->GetDoc();
+  if (!doc) {
+    return false;
+  }
+
+  return doc->GetDocumentURI()->GetSpecOrDefault().EqualsLiteral("about:blank");
+}
+
+WrapperCachedNonISupportsTestInterface*
+TestFunctions::WrapperCachedNonISupportsObject() {
+  if (!mWrapperCachedNonISupportsTestInterface) {
+    mWrapperCachedNonISupportsTestInterface =
+        new WrapperCachedNonISupportsTestInterface();
+  }
+  return mWrapperCachedNonISupportsTestInterface;
+}
+
+bool TestFunctions::WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto,
+                               JS::MutableHandle<JSObject*> aWrapper) {
+  return TestFunctions_Binding::Wrap(aCx, this, aGivenProto, aWrapper);
+}
+
+}  // namespace mozilla::dom