Add m-esr52 at 52.6.0

7 files changed, 633 insertions, 0 deletions

diff --git a/js/xpconnect/tests/components/native/moz.build b/js/xpconnect/tests/components/native/moz.build
new file mode 100644
index 000000000..25d1cb942
--- /dev/null
+++ b/js/xpconnect/tests/components/native/moz.build
@@ -0,0 +1,19 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# 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/.
+
+FINAL_TARGET = '_tests/xpcshell/js/xpconnect/tests/components/native/'
+EXTRA_COMPONENTS += [
+    'xpctest.manifest',
+]
+
+UNIFIED_SOURCES += [
+    'xpctest_attributes.cpp',
+    'xpctest_module.cpp',
+    'xpctest_params.cpp',
+    'xpctest_returncode.cpp',
+]
+
+XPCOMBinaryComponent('xpctest')
diff --git a/js/xpconnect/tests/components/native/xpctest.manifest b/js/xpconnect/tests/components/native/xpctest.manifest
new file mode 100644
index 000000000..5b01aca44
--- /dev/null
+++ b/js/xpconnect/tests/components/native/xpctest.manifest
@@ -0,0 +1 @@
+interfaces xpctest.xpt
diff --git a/js/xpconnect/tests/components/native/xpctest_attributes.cpp b/js/xpconnect/tests/components/native/xpctest_attributes.cpp
new file mode 100644
index 000000000..6a844fee2
--- /dev/null
+++ b/js/xpconnect/tests/components/native/xpctest_attributes.cpp
@@ -0,0 +1,139 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * 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 "xpctest_private.h"
+
+NS_IMPL_ISUPPORTS(xpcTestObjectReadOnly, nsIXPCTestObjectReadOnly)
+
+xpcTestObjectReadOnly :: xpcTestObjectReadOnly() {
+    boolProperty = true;
+    shortProperty = 32767;
+    longProperty =  2147483647;
+    floatProperty = 5.5f;
+    charProperty = 'X';
+    // timeProperty is PRTime and signed type.
+    // So it has to allow negative value.
+    timeProperty = -1;
+}
+
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetStrReadOnly(char * *aStrReadOnly){
+    char aString[] = "XPConnect Read-Only String";
+
+    if (!aStrReadOnly)
+        return NS_ERROR_NULL_POINTER;
+    *aStrReadOnly = (char*) nsMemory::Clone(aString,
+                                            sizeof(char)*(strlen(aString)+1));
+    return *aStrReadOnly ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+}
+
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetBoolReadOnly(bool* aBoolReadOnly) {
+    *aBoolReadOnly = boolProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetShortReadOnly(int16_t* aShortReadOnly){
+    *aShortReadOnly = shortProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetLongReadOnly(int32_t* aLongReadOnly){
+    *aLongReadOnly = longProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetFloatReadOnly(float* aFloatReadOnly){
+    *aFloatReadOnly = floatProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetCharReadOnly(char* aCharReadOnly){
+    *aCharReadOnly = charProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadOnly :: GetTimeReadOnly(PRTime* aTimeReadOnly){
+    *aTimeReadOnly = timeProperty;
+    return NS_OK;
+}
+
+NS_IMPL_ISUPPORTS(xpcTestObjectReadWrite, nsIXPCTestObjectReadWrite)
+
+xpcTestObjectReadWrite :: xpcTestObjectReadWrite() {
+    const char s[] = "XPConnect Read-Writable String";
+    stringProperty = (char*) nsMemory::Clone(s, sizeof(char)*(strlen(s)+1));
+    boolProperty = true;
+    shortProperty = 32767;
+    longProperty =  2147483647;
+    floatProperty = 5.5f;
+    charProperty = 'X';
+    // timeProperty is PRTime and signed type.
+    // So it has to allow negative value.
+    timeProperty = -1;
+}
+
+xpcTestObjectReadWrite :: ~xpcTestObjectReadWrite()
+{
+    free(stringProperty);
+}
+
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetStringProperty(char * *aStringProperty) {
+    if (!aStringProperty)
+        return NS_ERROR_NULL_POINTER;
+    *aStringProperty = (char*) nsMemory::Clone(stringProperty,
+                                               sizeof(char)*(strlen(stringProperty)+1));
+    return *aStringProperty ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetStringProperty(const char * aStringProperty) {
+    free(stringProperty);
+    stringProperty = (char*) nsMemory::Clone(aStringProperty,
+                                             sizeof(char)*(strlen(aStringProperty)+1));
+    return NS_OK;
+}
+
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetBooleanProperty(bool* aBooleanProperty) {
+    *aBooleanProperty = boolProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetBooleanProperty(bool aBooleanProperty) {
+    boolProperty = aBooleanProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetShortProperty(int16_t* aShortProperty) {
+    *aShortProperty = shortProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetShortProperty(int16_t aShortProperty) {
+    shortProperty = aShortProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetLongProperty(int32_t* aLongProperty) {
+    *aLongProperty = longProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetLongProperty(int32_t aLongProperty) {
+    longProperty = aLongProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetFloatProperty(float* aFloatProperty) {
+    *aFloatProperty = floatProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetFloatProperty(float aFloatProperty) {
+    floatProperty = aFloatProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetCharProperty(char* aCharProperty) {
+    *aCharProperty = charProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetCharProperty(char aCharProperty) {
+    charProperty = aCharProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: GetTimeProperty(PRTime* aTimeProperty) {
+    *aTimeProperty = timeProperty;
+    return NS_OK;
+}
+NS_IMETHODIMP xpcTestObjectReadWrite :: SetTimeProperty(PRTime aTimeProperty) {
+    timeProperty = aTimeProperty;
+    return NS_OK;
+}
diff --git a/js/xpconnect/tests/components/native/xpctest_module.cpp b/js/xpconnect/tests/components/native/xpctest_module.cpp
new file mode 100644
index 000000000..f6c29968b
--- /dev/null
+++ b/js/xpconnect/tests/components/native/xpctest_module.cpp
@@ -0,0 +1,59 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * 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/. */
+
+/* module registration and factory code. */
+
+#include "mozilla/ModuleUtils.h"
+#include "xpctest_private.h"
+
+#define NS_XPCTESTOBJECTREADONLY_CID                                          \
+{ 0x492609a7, 0x2582, 0x436b,                                                 \
+   { 0xb0, 0xef, 0x92, 0xe2, 0x9b, 0xb9, 0xe1, 0x43 } }
+
+#define NS_XPCTESTOBJECTREADWRITE_CID                                         \
+{ 0x8f37f760, 0x3686, 0x4dbb,                                                 \
+   { 0xb1, 0x21, 0x96, 0x93, 0xba, 0x81, 0x3f, 0x8f } }
+
+#define NS_XPCTESTPARAMS_CID                                                  \
+{ 0x1f11076a, 0x0fa2, 0x4f07,                                                 \
+    { 0xb4, 0x7a, 0xa1, 0x54, 0x31, 0xf2, 0xce, 0xf7 } }
+
+#define NS_XPCTESTRETURNCODEPARENT_CID                                        \
+{ 0x3818f744, 0x5445, 0x4e9c,                                                 \
+    { 0x9b, 0xb8, 0x64, 0x62, 0xfe, 0x81, 0xb6, 0x19 } }
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(xpcTestObjectReadOnly)
+NS_GENERIC_FACTORY_CONSTRUCTOR(xpcTestObjectReadWrite)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsXPCTestParams)
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsXPCTestReturnCodeParent)
+NS_DEFINE_NAMED_CID(NS_XPCTESTOBJECTREADONLY_CID);
+NS_DEFINE_NAMED_CID(NS_XPCTESTOBJECTREADWRITE_CID);
+NS_DEFINE_NAMED_CID(NS_XPCTESTPARAMS_CID);
+NS_DEFINE_NAMED_CID(NS_XPCTESTRETURNCODEPARENT_CID);
+
+static const mozilla::Module::CIDEntry kXPCTestCIDs[] = {
+    { &kNS_XPCTESTOBJECTREADONLY_CID, false, nullptr, xpcTestObjectReadOnlyConstructor },
+    { &kNS_XPCTESTOBJECTREADWRITE_CID, false, nullptr, xpcTestObjectReadWriteConstructor },
+    { &kNS_XPCTESTPARAMS_CID, false, nullptr, nsXPCTestParamsConstructor },
+    { &kNS_XPCTESTRETURNCODEPARENT_CID, false, nullptr, nsXPCTestReturnCodeParentConstructor },
+    { nullptr }
+};
+
+static const mozilla::Module::ContractIDEntry kXPCTestContracts[] = {
+    { "@mozilla.org/js/xpc/test/native/ObjectReadOnly;1", &kNS_XPCTESTOBJECTREADONLY_CID },
+    { "@mozilla.org/js/xpc/test/native/ObjectReadWrite;1", &kNS_XPCTESTOBJECTREADWRITE_CID },
+    { "@mozilla.org/js/xpc/test/native/Params;1", &kNS_XPCTESTPARAMS_CID },
+    { "@mozilla.org/js/xpc/test/native/ReturnCodeParent;1", &kNS_XPCTESTRETURNCODEPARENT_CID },
+    { nullptr }
+};
+
+static const mozilla::Module kXPCTestModule = {
+    mozilla::Module::kVersion,
+    kXPCTestCIDs,
+    kXPCTestContracts
+};
+
+NSMODULE_DEFN(xpconnect_test) = &kXPCTestModule;
diff --git a/js/xpconnect/tests/components/native/xpctest_params.cpp b/js/xpconnect/tests/components/native/xpctest_params.cpp
new file mode 100644
index 000000000..e88746d89
--- /dev/null
+++ b/js/xpconnect/tests/components/native/xpctest_params.cpp
@@ -0,0 +1,308 @@
+/* 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 "xpctest_private.h"
+#include "xpctest_interfaces.h"
+#include "js/Value.h"
+
+NS_IMPL_ISUPPORTS(nsXPCTestParams, nsIXPCTestParams)
+
+nsXPCTestParams::nsXPCTestParams()
+{
+}
+
+nsXPCTestParams::~nsXPCTestParams()
+{
+}
+
+#define GENERIC_METHOD_IMPL {                                                 \
+    *_retval = *b;                                                            \
+    *b = a;                                                                   \
+    return NS_OK;                                                             \
+}
+
+#define STRING_METHOD_IMPL {                                                  \
+    _retval.Assign(b);                                                        \
+    b.Assign(a);                                                              \
+    return NS_OK;                                                             \
+}
+
+#define TAKE_OWNERSHIP_NOOP(val) {}
+#define TAKE_OWNERSHIP_INTERFACE(val) {static_cast<nsISupports*>(val)->AddRef();}
+#define TAKE_OWNERSHIP_STRING(val) {                                          \
+    nsDependentCString vprime(val);                                           \
+    val = ToNewCString(vprime);                                               \
+}
+#define TAKE_OWNERSHIP_WSTRING(val) {                                         \
+    nsDependentString vprime(val);                                            \
+    val = ToNewUnicode(vprime);                                               \
+}
+
+// Macro for our buffer-oriented types:
+//   'type' is the type of element that the buffer contains.
+//   'padding' is an offset added to length, allowing us to handle
+//             null-terminated strings.
+//   'TAKE_OWNERSHIP' is one of the macros above.
+#define BUFFER_METHOD_IMPL(type, padding, TAKE_OWNERSHIP) {                   \
+    uint32_t elemSize = sizeof(type);                                         \
+                                                                              \
+    /* Copy b into rv. */                                                     \
+    *rvLength = *bLength;                                                     \
+    *rv = static_cast<type*>(moz_xmalloc(elemSize * (*bLength + padding)));   \
+    if (!*rv)                                                                 \
+        return NS_ERROR_OUT_OF_MEMORY;                                        \
+    memcpy(*rv, *b, elemSize * (*bLength + padding));                         \
+                                                                              \
+    /* Copy a into b. */                                                      \
+    *bLength = aLength;                                                       \
+    free(*b);                                                                 \
+    *b = static_cast<type*>(moz_xmalloc(elemSize * (aLength + padding)));     \
+    if (!*b)                                                                  \
+        return NS_ERROR_OUT_OF_MEMORY;                                        \
+    memcpy(*b, a, elemSize * (aLength + padding));                            \
+                                                                              \
+    /* We need to take ownership of the data we got from a,                   \
+       since the caller owns it. */                                           \
+    for (unsigned i = 0; i < *bLength + padding; ++i)                         \
+        TAKE_OWNERSHIP((*b)[i]);                                              \
+                                                                              \
+    return NS_OK;                                                             \
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestBoolean(bool a, bool* b, bool* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestOctet(uint8_t a, uint8_t* b, uint8_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestShort(int16_t a, int16_t* b, int16_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestLong(int32_t a, int32_t* b, int32_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestLongLong(int64_t a, int64_t* b, int64_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestUnsignedShort(uint16_t a, uint16_t* b, uint16_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestUnsignedLong(uint32_t a, uint32_t* b, uint32_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestUnsignedLongLong(uint64_t a, uint64_t* b, uint64_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestFloat(float a, float* b, float* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestDouble(double a, float* b, double* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestChar(char a, char* b, char* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestString(const char * a, char * *b, char * *_retval)
+{
+    nsDependentCString aprime(a);
+    nsDependentCString bprime(*b);
+    *_retval = ToNewCString(bprime);
+    *b = ToNewCString(aprime);
+
+    // XPCOM ownership rules dictate that overwritten inout params must be callee-freed.
+    // See https://developer.mozilla.org/en/XPIDL
+    free(const_cast<char*>(bprime.get()));
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestWchar(char16_t a, char16_t* b, char16_t* _retval)
+{
+    GENERIC_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestWstring(const char16_t * a, char16_t * *b, char16_t * *_retval)
+{
+    nsDependentString aprime(a);
+    nsDependentString bprime(*b);
+    *_retval = ToNewUnicode(bprime);
+    *b = ToNewUnicode(aprime);
+
+    // XPCOM ownership rules dictate that overwritten inout params must be callee-freed.
+    // See https://developer.mozilla.org/en/XPIDL
+    free((void*)bprime.get());
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestDOMString(const nsAString & a, nsAString & b, nsAString & _retval)
+{
+    STRING_METHOD_IMPL;
+}
+
+
+NS_IMETHODIMP nsXPCTestParams::TestAString(const nsAString & a, nsAString & b, nsAString & _retval)
+{
+    STRING_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestAUTF8String(const nsACString & a, nsACString & b, nsACString & _retval)
+{
+    STRING_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestACString(const nsACString & a, nsACString & b, nsACString & _retval)
+{
+    STRING_METHOD_IMPL;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestJsval(JS::Handle<JS::Value> a,
+                                         JS::MutableHandle<JS::Value> b,
+                                         JS::MutableHandle<JS::Value> _retval)
+{
+    _retval.set(b);
+    b.set(a);
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestShortArray(uint32_t aLength, int16_t* a,
+                                              uint32_t* bLength, int16_t** b,
+                                              uint32_t* rvLength, int16_t** rv)
+{
+    BUFFER_METHOD_IMPL(int16_t, 0, TAKE_OWNERSHIP_NOOP);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestDoubleArray(uint32_t aLength, double* a,
+                                               uint32_t* bLength, double** b,
+                                               uint32_t* rvLength,  double** rv)
+{
+    BUFFER_METHOD_IMPL(double, 0, TAKE_OWNERSHIP_NOOP);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestStringArray(uint32_t aLength, const char * *a,
+                                               uint32_t* bLength, char * **b,
+                                               uint32_t* rvLength, char * **rv)
+{
+    BUFFER_METHOD_IMPL(char*, 0, TAKE_OWNERSHIP_STRING);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestWstringArray(uint32_t aLength, const char16_t * *a,
+                                                uint32_t* bLength, char16_t * **b,
+                                                uint32_t* rvLength, char16_t * **rv)
+{
+    BUFFER_METHOD_IMPL(char16_t*, 0, TAKE_OWNERSHIP_WSTRING);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestInterfaceArray(uint32_t aLength, nsIXPCTestInterfaceA** a,
+                                                  uint32_t* bLength, nsIXPCTestInterfaceA * **b,
+                                                  uint32_t* rvLength, nsIXPCTestInterfaceA * **rv)
+{
+    BUFFER_METHOD_IMPL(nsIXPCTestInterfaceA*, 0, TAKE_OWNERSHIP_INTERFACE);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestSizedString(uint32_t aLength, const char * a,
+                                               uint32_t* bLength, char * *b,
+                                               uint32_t* rvLength, char * *rv)
+{
+    BUFFER_METHOD_IMPL(char, 1, TAKE_OWNERSHIP_NOOP);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestSizedWstring(uint32_t aLength, const char16_t * a,
+                                                uint32_t* bLength, char16_t * *b,
+                                                uint32_t* rvLength, char16_t * *rv)
+{
+    BUFFER_METHOD_IMPL(char16_t, 1, TAKE_OWNERSHIP_NOOP);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestInterfaceIs(const nsIID* aIID, void* a,
+                                               nsIID** bIID, void** b,
+                                               nsIID** rvIID, void** rv)
+{
+    //
+    // Getting the buffers and ownership right here can be a little tricky.
+    //
+
+    // The interface pointers are heap-allocated, and b has been AddRef'd
+    // by XPConnect for the duration of the call. If we snatch it away from b
+    // and leave no trace, XPConnect won't Release it. Since we also need to
+    // return an already-AddRef'd pointer in rv, we don't need to do anything
+    // special here.
+    *rv = *b;
+
+    // rvIID is out-only, so nobody allocated an IID buffer for us. Do that now,
+    // and store b's IID in the new buffer.
+    *rvIID = static_cast<nsIID*>(moz_xmalloc(sizeof(nsID)));
+    if (!*rvIID)
+        return NS_ERROR_OUT_OF_MEMORY;
+    **rvIID = **bIID;
+
+    // Copy the interface pointer from a to b. Since a is in-only, XPConnect will
+    // release it upon completion of the call. AddRef it for b.
+    *b = a;
+    static_cast<nsISupports*>(*b)->AddRef();
+
+    // We already had a buffer allocated for b's IID, so we can re-use it.
+    **bIID = *aIID;
+
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestInterfaceIsArray(uint32_t aLength, const nsIID* aIID,
+                                                    void** a,
+                                                    uint32_t* bLength, nsIID** bIID,
+                                                    void*** b,
+                                                    uint32_t* rvLength, nsIID** rvIID,
+                                                    void*** rv)
+{
+    // Transfer the IIDs. See the comments in TestInterfaceIs (above) for an
+    // explanation of what we're doing.
+    *rvIID = static_cast<nsIID*>(moz_xmalloc(sizeof(nsID)));
+    if (!*rvIID)
+        return NS_ERROR_OUT_OF_MEMORY;
+    **rvIID = **bIID;
+    **bIID = *aIID;
+
+    // The macro is agnostic to the actual interface types, so we can re-use code here.
+    //
+    // Do this second, since the macro returns.
+    BUFFER_METHOD_IMPL(void*, 0, TAKE_OWNERSHIP_INTERFACE);
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestOutAString(nsAString & o)
+{
+    o.AssignLiteral("out");
+    return NS_OK;
+}
+
+NS_IMETHODIMP nsXPCTestParams::TestStringArrayOptionalSize(const char * *a, uint32_t length, nsACString& out)
+{
+  out.Truncate();
+  for (uint32_t i = 0; i < length; ++i) {
+    out.Append(a[i]);
+  }
+
+  return NS_OK;
+}
diff --git a/js/xpconnect/tests/components/native/xpctest_private.h b/js/xpconnect/tests/components/native/xpctest_private.h
new file mode 100644
index 000000000..45e3f12e4
--- /dev/null
+++ b/js/xpconnect/tests/components/native/xpctest_private.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * 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/. */
+
+/* local header for xpconnect tests components */
+
+#ifndef xpctest_private_h___
+#define xpctest_private_h___
+
+#include "nsISupports.h"
+#include "nsMemory.h"
+#include "nsStringGlue.h"
+#include "xpctest_attributes.h"
+#include "xpctest_params.h"
+#include "xpctest_returncode.h"
+#include "mozilla/Attributes.h"
+
+class xpcTestObjectReadOnly final : public nsIXPCTestObjectReadOnly {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIXPCTESTOBJECTREADONLY
+  xpcTestObjectReadOnly();
+
+ private:
+    ~xpcTestObjectReadOnly() {}
+
+    bool    boolProperty;
+    int16_t shortProperty;
+    int32_t longProperty;
+    float   floatProperty;
+    char    charProperty;
+    PRTime  timeProperty;
+};
+
+class xpcTestObjectReadWrite final : public nsIXPCTestObjectReadWrite {
+  public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIXPCTESTOBJECTREADWRITE
+
+  xpcTestObjectReadWrite();
+
+ private:
+     ~xpcTestObjectReadWrite();
+
+     bool boolProperty;
+     int16_t shortProperty;
+     int32_t longProperty;
+     float floatProperty;
+     char charProperty;
+     char* stringProperty;
+     PRTime timeProperty;
+};
+
+class nsXPCTestParams final : public nsIXPCTestParams
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIXPCTESTPARAMS
+
+    nsXPCTestParams();
+
+private:
+    ~nsXPCTestParams();
+};
+
+class nsXPCTestReturnCodeParent final : public nsIXPCTestReturnCodeParent
+{
+public:
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSIXPCTESTRETURNCODEPARENT
+
+    nsXPCTestReturnCodeParent();
+
+private:
+    ~nsXPCTestReturnCodeParent();
+};
+
+#endif /* xpctest_private_h___ */
diff --git a/js/xpconnect/tests/components/native/xpctest_returncode.cpp b/js/xpconnect/tests/components/native/xpctest_returncode.cpp
new file mode 100644
index 000000000..3ae7d4279
--- /dev/null
+++ b/js/xpconnect/tests/components/native/xpctest_returncode.cpp
@@ -0,0 +1,27 @@
+/* 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 "xpctest_private.h"
+#include "xpctest_interfaces.h"
+#include "nsComponentManagerUtils.h"
+
+NS_IMPL_ISUPPORTS(nsXPCTestReturnCodeParent, nsIXPCTestReturnCodeParent)
+
+nsXPCTestReturnCodeParent::nsXPCTestReturnCodeParent()
+{
+}
+
+nsXPCTestReturnCodeParent::~nsXPCTestReturnCodeParent()
+{
+}
+
+NS_IMETHODIMP nsXPCTestReturnCodeParent::CallChild(int32_t childBehavior, nsresult* _retval)
+{
+    nsresult rv;
+    nsCOMPtr<nsIXPCTestReturnCodeChild> child(do_CreateInstance("@mozilla.org/js/xpc/test/js/ReturnCodeChild;1", &rv));
+    NS_ENSURE_SUCCESS(rv, rv);
+    rv = child->DoIt(childBehavior);
+    *_retval = rv;
+    return NS_OK;
+}