Implement new plugin mechanism

moc can now embed meta information about the plugin
inside the plugin itself. This information can
be queried by Qt without having to load the plugin.

Source compatibility with the old plugin loading
mechanism is still there, but will be removed before
Qt 5.0.

Change-Id: I03e4196ddfed07d0fe94acca40d5de8a6ce7f920
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

7 files changed, 283 insertions, 150 deletions

diff --git a/src/tools/moc/generator.cpp b/src/tools/moc/generator.cpp
index b4f3d23f4e..e2055e44e8 100644
--- a/src/tools/moc/generator.cpp
+++ b/src/tools/moc/generator.cpp
@@ -43,6 +43,11 @@
 #include "outputrevision.h"
 #include "utils.h"
 #include <QtCore/qmetatype.h>
+#include <QtCore/qjsondocument.h>
+#include <QtCore/qjsonobject.h>
+#include <QtCore/qjsonvalue.h>
+#include <QtCore/qjsonarray.h>
+#include <QtCore/qplugin.h>
 #include <stdio.h>
 
 #include <private/qmetaobject_p.h> //for the flags.
@@ -421,6 +426,11 @@ void Generator::generateCode()
 //
     for (int signalindex = 0; signalindex < cdef->signalList.size(); ++signalindex)
         generateSignal(&cdef->signalList[signalindex], signalindex);
+
+//
+// Generate plugin meta data
+//
+    generatePluginMetaData();
 }
 
 
@@ -1051,4 +1061,42 @@ void Generator::generateSignal(FunctionDef *def,int index)
     fprintf(out, "}\n");
 }
 
+void Generator::generatePluginMetaData()
+{
+    if (cdef->pluginData.iid.isEmpty())
+        return;
+
+    QJsonObject data;
+    data.insert(QLatin1String("IID"), QLatin1String(cdef->pluginData.iid.constData()));
+    data.insert(QLatin1String("className"), QLatin1String(cdef->classname.constData()));
+    data.insert(QLatin1String("version"), (int)QT_VERSION);
+    data.insert(QLatin1String("debug"),
+#ifdef QT_NO_DEBUG
+                false
+#else
+                true
+#endif
+                );
+    data.insert(QLatin1String("MetaData"), cdef->pluginData.metaData.object());
+    QJsonDocument doc(data);
+
+    fprintf(out, "\nQT_PLUGIN_METADATA_SECTION const uint qt_section_alignment_dummy = 42;\n");
+    fprintf(out,
+            "\nQT_PLUGIN_METADATA_SECTION\n"
+            "static const unsigned char qt_pluginMetaData[] = {\n"
+            "    'Q', 'T', 'M', 'E', 'T', 'A', 'D', 'A', 'T', 'A', ' ', ' ',\n   ");
+#if 0
+    fprintf(out, "\"%s\";\n", doc.toJson().constData());
+#else
+    QByteArray binary = doc.toBinaryData();
+    for (int i = 0; i < binary.size() - 1; ++i) {
+        fprintf(out, " 0x%02x,", (uchar)binary.at(i));
+        if (!((i + 1) % 8))
+            fprintf(out, "\n   ");
+    }
+    fprintf(out, " 0x%02x\n};\n", (uchar)binary.at(binary.size() - 1));
+#endif
+    fprintf(out, "QT_MOC_EXPORT_PLUGIN(%s)\n\n", cdef->classname.constData());
+}
+
 QT_END_NAMESPACE
diff --git a/src/tools/moc/generator.h b/src/tools/moc/generator.h
index a3dc3d0041..6682e1a36a 100644
--- a/src/tools/moc/generator.h
+++ b/src/tools/moc/generator.h
@@ -63,6 +63,7 @@ private:
     void generateMetacall();
     void generateStaticMetacall();
     void generateSignal(FunctionDef *def, int index);
+    void generatePluginMetaData();
 
     int strreg(const char *); // registers a string and returns its id
     QList<QByteArray> strings;
diff --git a/src/tools/moc/keywords.cpp b/src/tools/moc/keywords.cpp
index 7a6b44074b..f6151bdbf5 100644
--- a/src/tools/moc/keywords.cpp
+++ b/src/tools/moc/keywords.cpp
@@ -43,12 +43,12 @@
 // DO NOT EDIT.
 
 static const short keyword_trans[][128] = {
-    {0,0,0,0,0,0,0,0,0,532,529,0,0,0,0,0,
+    {0,0,0,0,0,0,0,0,0,546,543,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     532,252,530,533,0,38,239,531,25,26,236,234,30,235,27,237,
+     546,252,544,547,0,38,239,545,25,26,236,234,30,235,27,237,
      22,22,22,22,22,22,22,22,22,22,34,41,23,39,24,43,
      0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-     8,21,8,8,8,8,8,8,8,8,8,31,534,32,238,8,
+     8,21,8,8,8,8,8,8,8,8,8,31,548,32,238,8,
      0,1,2,3,4,5,6,7,8,9,8,8,10,11,12,13,
      14,8,15,16,17,18,19,20,8,8,8,36,245,37,248,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -129,7 +129,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,290,222,0,0,461,0,0,0,
+     0,0,0,0,0,0,0,0,290,222,0,0,475,0,0,0,
      0,0,0,0,55,0,0,330,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -168,7 +168,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,485,0,0,0,0,0,0,0,0,0,0,357,
+     0,0,0,0,499,0,0,0,0,0,0,0,0,0,0,357,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -190,7 +190,7 @@ static const short keyword_trans[][128] = {
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,42,0,0,0,28,0,
-     537,537,537,537,537,537,537,537,537,537,0,0,0,0,0,0,
+     551,551,551,551,551,551,551,551,551,551,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -349,7 +349,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,0,536,0,0,0,0,535,
+     0,0,0,0,0,0,0,0,0,0,550,0,0,0,0,549,
      0,0,0,0,0,0,0,0,0,0,0,0,0,258,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -385,21 +385,29 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,458,0,0,0,300,0,0,0,0,0,0,0,0,0,0,
+     0,472,0,0,0,300,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,439,388,378,383,364,0,448,0,0,0,0,0,358,
-     370,0,521,436,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,453,402,392,397,364,0,462,0,0,0,0,0,358,
+     370,0,535,450,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,475,0,0,0,0,0,372,
+     0,0,0,0,0,0,0,0,0,0,0,0,378,0,0,0,
+     0,0,371,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
+    {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,0,0,0,0,0,489,0,0,0,0,0,372,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -407,7 +415,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,418,396,0,0,401,0,0,0,410,0,0,
+     0,0,0,0,0,432,410,0,0,415,0,0,0,424,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -415,7 +423,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,504,0,437,0,0,0,465,0,0,471,0,0,0,
+     0,0,0,518,0,451,0,0,0,479,0,0,485,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
@@ -424,7 +432,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,450,0,497,0,0,0,0,0,0,0,0,0,
+     0,0,0,0,464,0,511,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
     {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
@@ -432,7 +440,7 @@ static const short keyword_trans[][128] = {
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     513,0,0,481,0,0,0,0,0,0,0,0,0,0,0,0,
+     527,0,0,495,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
      0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
 };
@@ -815,164 +823,178 @@ static const struct
     {CHARACTER, 0, 69, 368, CHARACTER},
     {CHARACTER, 0, 84, 369, CHARACTER},
     {Q_GADGET_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 82, 371, CHARACTER},
     {CHARACTER, 44, 0, 0, CHARACTER},
+    {CHARACTER, 45, 0, 0, CHARACTER},
     {CHARACTER, 0, 80, 373, CHARACTER},
     {CHARACTER, 0, 69, 374, CHARACTER},
     {CHARACTER, 0, 82, 375, CHARACTER},
     {CHARACTER, 0, 84, 376, CHARACTER},
     {CHARACTER, 0, 89, 377, CHARACTER},
     {Q_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 379, CHARACTER},
-    {CHARACTER, 0, 85, 380, CHARACTER},
-    {CHARACTER, 0, 77, 381, CHARACTER},
-    {CHARACTER, 0, 83, 382, CHARACTER},
+    {CHARACTER, 0, 85, 379, CHARACTER},
+    {CHARACTER, 0, 71, 380, CHARACTER},
+    {CHARACTER, 0, 73, 381, CHARACTER},
+    {CHARACTER, 0, 78, 382, CHARACTER},
+    {CHARACTER, 0, 95, 383, CHARACTER},
+    {CHARACTER, 0, 77, 384, CHARACTER},
+    {CHARACTER, 0, 69, 385, CHARACTER},
+    {CHARACTER, 0, 84, 386, CHARACTER},
+    {CHARACTER, 0, 65, 387, CHARACTER},
+    {CHARACTER, 0, 68, 388, CHARACTER},
+    {CHARACTER, 0, 65, 389, CHARACTER},
+    {CHARACTER, 0, 84, 390, CHARACTER},
+    {CHARACTER, 0, 65, 391, CHARACTER},
+    {Q_PLUGIN_METADATA_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 78, 393, CHARACTER},
+    {CHARACTER, 0, 85, 394, CHARACTER},
+    {CHARACTER, 0, 77, 395, CHARACTER},
+    {CHARACTER, 0, 83, 396, CHARACTER},
     {Q_ENUMS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 76, 384, CHARACTER},
-    {CHARACTER, 0, 65, 385, CHARACTER},
-    {CHARACTER, 0, 71, 386, CHARACTER},
-    {CHARACTER, 0, 83, 387, CHARACTER},
+    {CHARACTER, 0, 76, 398, CHARACTER},
+    {CHARACTER, 0, 65, 399, CHARACTER},
+    {CHARACTER, 0, 71, 400, CHARACTER},
+    {CHARACTER, 0, 83, 401, CHARACTER},
     {Q_FLAGS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 389, CHARACTER},
-    {CHARACTER, 0, 67, 390, CHARACTER},
-    {CHARACTER, 0, 76, 391, CHARACTER},
-    {CHARACTER, 0, 65, 392, CHARACTER},
-    {CHARACTER, 0, 82, 393, CHARACTER},
-    {CHARACTER, 0, 69, 394, CHARACTER},
-    {CHARACTER, 0, 95, 395, CHARACTER},
-    {CHARACTER, 45, 0, 0, CHARACTER},
-    {CHARACTER, 0, 76, 397, CHARACTER},
-    {CHARACTER, 0, 65, 398, CHARACTER},
-    {CHARACTER, 0, 71, 399, CHARACTER},
-    {CHARACTER, 0, 83, 400, CHARACTER},
+    {CHARACTER, 0, 69, 403, CHARACTER},
+    {CHARACTER, 0, 67, 404, CHARACTER},
+    {CHARACTER, 0, 76, 405, CHARACTER},
+    {CHARACTER, 0, 65, 406, CHARACTER},
+    {CHARACTER, 0, 82, 407, CHARACTER},
+    {CHARACTER, 0, 69, 408, CHARACTER},
+    {CHARACTER, 0, 95, 409, CHARACTER},
+    {CHARACTER, 46, 0, 0, CHARACTER},
+    {CHARACTER, 0, 76, 411, CHARACTER},
+    {CHARACTER, 0, 65, 412, CHARACTER},
+    {CHARACTER, 0, 71, 413, CHARACTER},
+    {CHARACTER, 0, 83, 414, CHARACTER},
     {Q_DECLARE_FLAGS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 402, CHARACTER},
-    {CHARACTER, 0, 84, 403, CHARACTER},
-    {CHARACTER, 0, 69, 404, CHARACTER},
-    {CHARACTER, 0, 82, 405, CHARACTER},
-    {CHARACTER, 0, 70, 406, CHARACTER},
-    {CHARACTER, 0, 65, 407, CHARACTER},
-    {CHARACTER, 0, 67, 408, CHARACTER},
-    {CHARACTER, 0, 69, 409, CHARACTER},
+    {CHARACTER, 0, 78, 416, CHARACTER},
+    {CHARACTER, 0, 84, 417, CHARACTER},
+    {CHARACTER, 0, 69, 418, CHARACTER},
+    {CHARACTER, 0, 82, 419, CHARACTER},
+    {CHARACTER, 0, 70, 420, CHARACTER},
+    {CHARACTER, 0, 65, 421, CHARACTER},
+    {CHARACTER, 0, 67, 422, CHARACTER},
+    {CHARACTER, 0, 69, 423, CHARACTER},
     {Q_DECLARE_INTERFACE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 411, CHARACTER},
-    {CHARACTER, 0, 84, 412, CHARACTER},
-    {CHARACTER, 0, 65, 413, CHARACTER},
-    {CHARACTER, 0, 84, 414, CHARACTER},
-    {CHARACTER, 0, 89, 415, CHARACTER},
-    {CHARACTER, 0, 80, 416, CHARACTER},
-    {CHARACTER, 0, 69, 417, CHARACTER},
-    {Q_DECLARE_METATYPE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 88, 419, CHARACTER},
-    {CHARACTER, 0, 84, 420, CHARACTER},
-    {CHARACTER, 0, 69, 421, CHARACTER},
-    {CHARACTER, 0, 78, 422, CHARACTER},
-    {CHARACTER, 0, 83, 423, CHARACTER},
-    {CHARACTER, 0, 73, 424, CHARACTER},
-    {CHARACTER, 0, 79, 425, CHARACTER},
-    {CHARACTER, 0, 78, 426, CHARACTER},
-    {CHARACTER, 0, 95, 427, CHARACTER},
-    {CHARACTER, 0, 73, 428, CHARACTER},
-    {CHARACTER, 0, 78, 429, CHARACTER},
-    {CHARACTER, 0, 84, 430, CHARACTER},
+    {CHARACTER, 0, 69, 425, CHARACTER},
+    {CHARACTER, 0, 84, 426, CHARACTER},
+    {CHARACTER, 0, 65, 427, CHARACTER},
+    {CHARACTER, 0, 84, 428, CHARACTER},
+    {CHARACTER, 0, 89, 429, CHARACTER},
+    {CHARACTER, 0, 80, 430, CHARACTER},
     {CHARACTER, 0, 69, 431, CHARACTER},
-    {CHARACTER, 0, 82, 432, CHARACTER},
-    {CHARACTER, 0, 70, 433, CHARACTER},
-    {CHARACTER, 0, 65, 434, CHARACTER},
-    {CHARACTER, 0, 67, 435, CHARACTER},
-    {CHARACTER, 0, 69, 409, CHARACTER},
-    {CHARACTER, 46, 0, 0, CHARACTER},
-    {CHARACTER, 0, 84, 438, CHARACTER},
-    {CHARACTER, 0, 83, 387, CHARACTER},
-    {CHARACTER, 0, 76, 440, CHARACTER},
-    {CHARACTER, 0, 65, 441, CHARACTER},
-    {CHARACTER, 0, 83, 442, CHARACTER},
-    {CHARACTER, 0, 83, 443, CHARACTER},
-    {CHARACTER, 0, 73, 444, CHARACTER},
-    {CHARACTER, 0, 78, 445, CHARACTER},
-    {CHARACTER, 0, 70, 446, CHARACTER},
-    {CHARACTER, 0, 79, 447, CHARACTER},
-    {Q_CLASSINFO_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 78, 449, CHARACTER},
+    {Q_DECLARE_METATYPE_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 88, 433, CHARACTER},
+    {CHARACTER, 0, 84, 434, CHARACTER},
+    {CHARACTER, 0, 69, 435, CHARACTER},
+    {CHARACTER, 0, 78, 436, CHARACTER},
+    {CHARACTER, 0, 83, 437, CHARACTER},
+    {CHARACTER, 0, 73, 438, CHARACTER},
+    {CHARACTER, 0, 79, 439, CHARACTER},
+    {CHARACTER, 0, 78, 440, CHARACTER},
+    {CHARACTER, 0, 95, 441, CHARACTER},
+    {CHARACTER, 0, 73, 442, CHARACTER},
+    {CHARACTER, 0, 78, 443, CHARACTER},
+    {CHARACTER, 0, 84, 444, CHARACTER},
+    {CHARACTER, 0, 69, 445, CHARACTER},
+    {CHARACTER, 0, 82, 446, CHARACTER},
+    {CHARACTER, 0, 70, 447, CHARACTER},
+    {CHARACTER, 0, 65, 448, CHARACTER},
+    {CHARACTER, 0, 67, 449, CHARACTER},
+    {CHARACTER, 0, 69, 423, CHARACTER},
     {CHARACTER, 47, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 451, CHARACTER},
-    {CHARACTER, 0, 82, 452, CHARACTER},
-    {CHARACTER, 0, 70, 453, CHARACTER},
-    {CHARACTER, 0, 65, 454, CHARACTER},
-    {CHARACTER, 0, 67, 455, CHARACTER},
-    {CHARACTER, 0, 69, 456, CHARACTER},
+    {CHARACTER, 0, 84, 452, CHARACTER},
+    {CHARACTER, 0, 83, 401, CHARACTER},
+    {CHARACTER, 0, 76, 454, CHARACTER},
+    {CHARACTER, 0, 65, 455, CHARACTER},
+    {CHARACTER, 0, 83, 456, CHARACTER},
     {CHARACTER, 0, 83, 457, CHARACTER},
+    {CHARACTER, 0, 73, 458, CHARACTER},
+    {CHARACTER, 0, 78, 459, CHARACTER},
+    {CHARACTER, 0, 70, 460, CHARACTER},
+    {CHARACTER, 0, 79, 461, CHARACTER},
+    {Q_CLASSINFO_TOKEN, 0, 0, 0, CHARACTER},
+    {CHARACTER, 0, 78, 463, CHARACTER},
+    {CHARACTER, 48, 0, 0, CHARACTER},
+    {CHARACTER, 0, 69, 465, CHARACTER},
+    {CHARACTER, 0, 82, 466, CHARACTER},
+    {CHARACTER, 0, 70, 467, CHARACTER},
+    {CHARACTER, 0, 65, 468, CHARACTER},
+    {CHARACTER, 0, 67, 469, CHARACTER},
+    {CHARACTER, 0, 69, 470, CHARACTER},
+    {CHARACTER, 0, 83, 471, CHARACTER},
     {Q_INTERFACES_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 108, 459, CHARACTER},
-    {CHARACTER, 0, 115, 460, CHARACTER},
+    {CHARACTER, 0, 108, 473, CHARACTER},
+    {CHARACTER, 0, 115, 474, CHARACTER},
     {SIGNALS, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 111, 462, CHARACTER},
-    {CHARACTER, 0, 116, 463, CHARACTER},
-    {CHARACTER, 0, 115, 464, CHARACTER},
+    {CHARACTER, 0, 111, 476, CHARACTER},
+    {CHARACTER, 0, 116, 477, CHARACTER},
+    {CHARACTER, 0, 115, 478, CHARACTER},
     {SLOTS, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 71, 466, CHARACTER},
-    {CHARACTER, 0, 78, 467, CHARACTER},
-    {CHARACTER, 0, 65, 468, CHARACTER},
-    {CHARACTER, 0, 76, 469, CHARACTER},
-    {Q_SIGNAL_TOKEN, 0, 83, 470, CHARACTER},
+    {CHARACTER, 0, 71, 480, CHARACTER},
+    {CHARACTER, 0, 78, 481, CHARACTER},
+    {CHARACTER, 0, 65, 482, CHARACTER},
+    {CHARACTER, 0, 76, 483, CHARACTER},
+    {Q_SIGNAL_TOKEN, 0, 83, 484, CHARACTER},
     {Q_SIGNALS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 79, 472, CHARACTER},
-    {CHARACTER, 0, 84, 473, CHARACTER},
-    {Q_SLOT_TOKEN, 0, 83, 474, CHARACTER},
+    {CHARACTER, 0, 79, 486, CHARACTER},
+    {CHARACTER, 0, 84, 487, CHARACTER},
+    {Q_SLOT_TOKEN, 0, 83, 488, CHARACTER},
     {Q_SLOTS_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 86, 476, CHARACTER},
-    {CHARACTER, 0, 65, 477, CHARACTER},
-    {CHARACTER, 0, 84, 478, CHARACTER},
-    {CHARACTER, 0, 69, 479, CHARACTER},
-    {CHARACTER, 0, 95, 480, CHARACTER},
-    {CHARACTER, 48, 0, 0, CHARACTER},
-    {CHARACTER, 0, 76, 482, CHARACTER},
-    {CHARACTER, 0, 79, 483, CHARACTER},
-    {CHARACTER, 0, 84, 484, CHARACTER},
+    {CHARACTER, 0, 86, 490, CHARACTER},
+    {CHARACTER, 0, 65, 491, CHARACTER},
+    {CHARACTER, 0, 84, 492, CHARACTER},
+    {CHARACTER, 0, 69, 493, CHARACTER},
+    {CHARACTER, 0, 95, 494, CHARACTER},
+    {CHARACTER, 49, 0, 0, CHARACTER},
+    {CHARACTER, 0, 76, 496, CHARACTER},
+    {CHARACTER, 0, 79, 497, CHARACTER},
+    {CHARACTER, 0, 84, 498, CHARACTER},
     {Q_PRIVATE_SLOT_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 95, 486, CHARACTER},
-    {CHARACTER, 0, 77, 487, CHARACTER},
-    {CHARACTER, 0, 79, 488, CHARACTER},
-    {CHARACTER, 0, 67, 489, CHARACTER},
-    {CHARACTER, 0, 95, 490, CHARACTER},
-    {CHARACTER, 0, 67, 491, CHARACTER},
-    {CHARACTER, 0, 79, 492, CHARACTER},
-    {CHARACTER, 0, 77, 493, CHARACTER},
-    {CHARACTER, 0, 80, 494, CHARACTER},
-    {CHARACTER, 0, 65, 495, CHARACTER},
-    {CHARACTER, 0, 84, 496, CHARACTER},
+    {CHARACTER, 0, 95, 500, CHARACTER},
+    {CHARACTER, 0, 77, 501, CHARACTER},
+    {CHARACTER, 0, 79, 502, CHARACTER},
+    {CHARACTER, 0, 67, 503, CHARACTER},
+    {CHARACTER, 0, 95, 504, CHARACTER},
+    {CHARACTER, 0, 67, 505, CHARACTER},
+    {CHARACTER, 0, 79, 506, CHARACTER},
+    {CHARACTER, 0, 77, 507, CHARACTER},
+    {CHARACTER, 0, 80, 508, CHARACTER},
+    {CHARACTER, 0, 65, 509, CHARACTER},
+    {CHARACTER, 0, 84, 510, CHARACTER},
     {Q_MOC_COMPAT_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 79, 498, CHARACTER},
-    {CHARACTER, 0, 75, 499, CHARACTER},
-    {CHARACTER, 0, 65, 500, CHARACTER},
-    {CHARACTER, 0, 66, 501, CHARACTER},
-    {CHARACTER, 0, 76, 502, CHARACTER},
-    {CHARACTER, 0, 69, 503, CHARACTER},
+    {CHARACTER, 0, 79, 512, CHARACTER},
+    {CHARACTER, 0, 75, 513, CHARACTER},
+    {CHARACTER, 0, 65, 514, CHARACTER},
+    {CHARACTER, 0, 66, 515, CHARACTER},
+    {CHARACTER, 0, 76, 516, CHARACTER},
+    {CHARACTER, 0, 69, 517, CHARACTER},
     {Q_INVOKABLE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 82, 505, CHARACTER},
-    {CHARACTER, 0, 73, 506, CHARACTER},
-    {CHARACTER, 0, 80, 507, CHARACTER},
-    {CHARACTER, 0, 84, 508, CHARACTER},
-    {CHARACTER, 0, 65, 509, CHARACTER},
-    {CHARACTER, 0, 66, 510, CHARACTER},
-    {CHARACTER, 0, 76, 511, CHARACTER},
-    {CHARACTER, 0, 69, 512, CHARACTER},
+    {CHARACTER, 0, 82, 519, CHARACTER},
+    {CHARACTER, 0, 73, 520, CHARACTER},
+    {CHARACTER, 0, 80, 521, CHARACTER},
+    {CHARACTER, 0, 84, 522, CHARACTER},
+    {CHARACTER, 0, 65, 523, CHARACTER},
+    {CHARACTER, 0, 66, 524, CHARACTER},
+    {CHARACTER, 0, 76, 525, CHARACTER},
+    {CHARACTER, 0, 69, 526, CHARACTER},
     {Q_SCRIPTABLE_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 82, 514, CHARACTER},
-    {CHARACTER, 0, 79, 515, CHARACTER},
-    {CHARACTER, 0, 80, 516, CHARACTER},
-    {CHARACTER, 0, 69, 517, CHARACTER},
-    {CHARACTER, 0, 82, 518, CHARACTER},
-    {CHARACTER, 0, 84, 519, CHARACTER},
-    {CHARACTER, 0, 89, 520, CHARACTER},
+    {CHARACTER, 0, 82, 528, CHARACTER},
+    {CHARACTER, 0, 79, 529, CHARACTER},
+    {CHARACTER, 0, 80, 530, CHARACTER},
+    {CHARACTER, 0, 69, 531, CHARACTER},
+    {CHARACTER, 0, 82, 532, CHARACTER},
+    {CHARACTER, 0, 84, 533, CHARACTER},
+    {CHARACTER, 0, 89, 534, CHARACTER},
     {Q_PRIVATE_PROPERTY_TOKEN, 0, 0, 0, CHARACTER},
-    {CHARACTER, 0, 69, 522, CHARACTER},
-    {CHARACTER, 0, 86, 523, CHARACTER},
-    {CHARACTER, 0, 73, 524, CHARACTER},
-    {CHARACTER, 0, 83, 525, CHARACTER},
-    {CHARACTER, 0, 73, 526, CHARACTER},
-    {CHARACTER, 0, 79, 527, CHARACTER},
-    {CHARACTER, 0, 78, 528, CHARACTER},
+    {CHARACTER, 0, 69, 536, CHARACTER},
+    {CHARACTER, 0, 86, 537, CHARACTER},
+    {CHARACTER, 0, 73, 538, CHARACTER},
+    {CHARACTER, 0, 83, 539, CHARACTER},
+    {CHARACTER, 0, 73, 540, CHARACTER},
+    {CHARACTER, 0, 79, 541, CHARACTER},
+    {CHARACTER, 0, 78, 542, CHARACTER},
     {Q_REVISION_TOKEN, 0, 0, 0, CHARACTER},
     {NEWLINE, 0, 0, 0, NOTOKEN},
     {QUOTE, 0, 0, 0, NOTOKEN},
diff --git a/src/tools/moc/moc.cpp b/src/tools/moc/moc.cpp
index 5c9e1ee838..97316eedde 100644
--- a/src/tools/moc/moc.cpp
+++ b/src/tools/moc/moc.cpp
@@ -44,6 +44,9 @@
 #include "qdatetime.h"
 #include "utils.h"
 #include "outputrevision.h"
+#include <QtCore/qfile.h>
+#include <QtCore/qfileinfo.h>
+#include <QtCore/qdir.h>
 
 // for normalizeTypeInternal
 #include <private/qmetaobject_moc_p.h>
@@ -673,6 +676,9 @@ void Moc::parse()
                 case Q_PROPERTY_TOKEN:
                     parseProperty(&def);
                     break;
+                case Q_PLUGIN_METADATA_TOKEN:
+                    parsePluginData(&def);
+                    break;
                 case Q_ENUMS_TOKEN:
                     parseEnumOrFlag(&def, false);
                     break;
@@ -813,6 +819,8 @@ void Moc::generate(FILE *out)
 
     if (mustIncludeQMetaTypeH)
         fprintf(out, "#include <QtCore/qmetatype.h>\n");
+    if (mustIncludeQPluginH)
+        fprintf(out, "#include <QtCore/qplugin.h>\n");
 
     fprintf(out, "#if !defined(Q_MOC_OUTPUT_REVISION)\n"
             "#error \"The header file '%s' doesn't include <QObject>.\"\n", (const char *)fn);
@@ -1080,6 +1088,50 @@ void Moc::parseProperty(ClassDef *def)
     def->propertyList += propDef;
 }
 
+void Moc::parsePluginData(ClassDef *def)
+{
+    next(LPAREN);
+    QByteArray metaData;
+    while (test(IDENTIFIER)) {
+        QByteArray l = lexem();
+        if (l == "IID") {
+            next(STRING_LITERAL);
+            def->pluginData.iid = unquotedLexem();
+        } else if (l == "FILE") {
+            next(STRING_LITERAL);
+            QByteArray metaDataFile = unquotedLexem();
+            QFileInfo fi(QFileInfo(QString::fromLocal8Bit(currentFilenames.top())).dir(), QString::fromLocal8Bit(metaDataFile));
+            if (!fi.exists()) {
+                QByteArray msg;
+                msg += "Plugin Metadata file ";
+                msg += lexem();
+                msg += " does not exist. Declaration will be ignored";
+                warning(msg.constData());
+                return;
+            }
+            QFile file(fi.canonicalFilePath());
+            file.open(QFile::ReadOnly);
+            metaData = file.readAll();
+        }
+    }
+
+    if (!metaData.isEmpty()) {
+        def->pluginData.metaData = QJsonDocument::fromJson(metaData);
+        if (!def->pluginData.metaData.isObject()) {
+            QByteArray msg;
+            msg += "Plugin Metadata file ";
+            msg += lexem();
+            msg += " does not contain a valid JSON object. Declaration will be ignored";
+            warning(msg.constData());
+            def->pluginData.iid = QByteArray();
+            return;
+        }
+    }
+
+    mustIncludeQPluginH = true;
+    next(RPAREN);
+}
+
 void Moc::parsePrivateProperty(ClassDef *def)
 {
     next(LPAREN);
diff --git a/src/tools/moc/moc.h b/src/tools/moc/moc.h
index b780272dff..aedb97b234 100644
--- a/src/tools/moc/moc.h
+++ b/src/tools/moc/moc.h
@@ -46,6 +46,7 @@
 #include <QStringList>
 #include <QMap>
 #include <QPair>
+#include <QJsonDocument>
 #include <stdio.h>
 #include <ctype.h>
 
@@ -167,6 +168,11 @@ struct ClassDef {
     bool hasQObject;
     bool hasQGadget;
 
+    struct PluginData {
+        QByteArray iid;
+        QJsonDocument metaData;
+    } pluginData;
+
     QList<FunctionDef> constructorList;
     QList<FunctionDef> signalList, slotList, methodList, publicList;
     int notifyableProperties;
@@ -192,7 +198,7 @@ class Moc : public Parser
 {
 public:
     Moc()
-        : noInclude(false), generatedCode(false), mustIncludeQMetaTypeH(false)
+        : noInclude(false), generatedCode(false), mustIncludeQMetaTypeH(false), mustIncludeQPluginH(false)
         {}
 
     QByteArray filename;
@@ -200,6 +206,7 @@ public:
     bool noInclude;
     bool generatedCode;
     bool mustIncludeQMetaTypeH;
+    bool mustIncludeQPluginH;
     QByteArray includePath;
     QList<QByteArray> includeFiles;
     QList<ClassDef> classList;
@@ -229,6 +236,7 @@ public:
     void parseSlots(ClassDef *def, FunctionDef::Access access);
     void parseSignals(ClassDef *def);
     void parseProperty(ClassDef *def);
+    void parsePluginData(ClassDef *def);
     void createPropertyDef(PropertyDef &def);
     void parseEnumOrFlag(ClassDef *def, bool isFlag);
     void parseFlag(ClassDef *def);
diff --git a/src/tools/moc/token.h b/src/tools/moc/token.h
index a694ff4eb2..a9f028f20a 100644
--- a/src/tools/moc/token.h
+++ b/src/tools/moc/token.h
@@ -169,6 +169,7 @@ enum Token {
     Q_OBJECT_TOKEN = Q_META_TOKEN_BEGIN,
     Q_GADGET_TOKEN,
     Q_PROPERTY_TOKEN,
+    Q_PLUGIN_METADATA_TOKEN,
     Q_ENUMS_TOKEN,
     Q_FLAGS_TOKEN,
     Q_DECLARE_FLAGS_TOKEN,
diff --git a/src/tools/moc/util/generate_keywords.cpp b/src/tools/moc/util/generate_keywords.cpp
index eb06315fed..4560944a47 100644
--- a/src/tools/moc/util/generate_keywords.cpp
+++ b/src/tools/moc/util/generate_keywords.cpp
@@ -228,6 +228,7 @@ static const Keyword keywords[] = {
     { "Q_OBJECT", "Q_OBJECT_TOKEN" },
     { "Q_GADGET", "Q_GADGET_TOKEN" },
     { "Q_PROPERTY", "Q_PROPERTY_TOKEN" },
+    { "Q_PLUGIN_METADATA", "Q_PLUGIN_METADATA_TOKEN" },
     { "Q_ENUMS", "Q_ENUMS_TOKEN" },
     { "Q_FLAGS", "Q_FLAGS_TOKEN" },
     { "Q_DECLARE_FLAGS", "Q_DECLARE_FLAGS_TOKEN" },