Introduce JSON validation

Support basic validation for JSON files according to the
draft http://tools.ietf.org/html/draft-zyp-json-schema-03.

This is not a complete implementation yet, but it should
already be useful, since "type" verification along with
many of the attributes is done.

Change-Id: I364bc98dd92937c5e2ea9cba7e15ed8e03eb9beb
Reviewed-by: Erik Verbruggen <erik.verbruggen@nokia.com>

src/plugins/qmljseditor/qmljseditorplugin.cpp

@@ -70,6 +70,7 @@
 #include <texteditor/textfilewizard.h>
 #include <texteditor/texteditoractionhandler.h>
 #include <utils/qtcassert.h>
+#include <utils/json.h>
 
 #include <QtCore/QtPlugin>
 #include <QtCore/QDebug>
@@ -98,7 +99,10 @@ QmlJSEditorPlugin::QmlJSEditorPlugin() :
     m_actionHandler(0),
     m_quickFixAssistProvider(0),
     m_reformatFileAction(0),
-    m_currentEditor(0)
+    m_currentEditor(0),
+    m_jsonManager(new Utils::JsonSchemaManager(
+            QStringList() << Core::ICore::instance()->userResourcePath() + QLatin1String("/json/")
+                          << Core::ICore::instance()->resourcePath() + QLatin1String("/json/")))
 {
     m_instance = this;
 }
@@ -285,6 +289,11 @@ void QmlJSEditorPlugin::initializeEditor(QmlJSEditor::QmlJSTextEditorWidget *edi
     TextEditor::TextEditorSettings::instance()->initializeEditor(editor);
 }
 
+Utils::JsonSchemaManager *QmlJSEditorPlugin::jsonManager() const
+{
+    return m_jsonManager.data();
+}
+
 void QmlJSEditorPlugin::followSymbolUnderCursor()
 {
     Core::EditorManager *em = Core::EditorManager::instance();

src/plugins/qmljseditor/qmljseditorplugin.h

@@ -36,10 +36,15 @@
 #include <extensionsystem/iplugin.h>
 #include <coreplugin/icontext.h>
 #include <coreplugin/id.h>
+
 #include <QtCore/QPointer>
 
 QT_FORWARD_DECLARE_CLASS(QAction)
 
+namespace Utils {
+class JsonSchemaManager;
+}
+
 namespace TextEditor {
 class TextEditorActionHandler;
 } // namespace TextEditor
@@ -91,6 +96,8 @@ public:
 
     void initializeEditor(QmlJSEditor::QmlJSTextEditorWidget *editor);
 
+    Utils::JsonSchemaManager *jsonManager() const;
+
 public Q_SLOTS:
     void followSymbolUnderCursor();
     void findUsages();
@@ -118,6 +125,7 @@ private:
     QAction *m_reformatFileAction;
 
     QPointer<QmlJSTextEditorWidget> m_currentEditor;
+    QScopedPointer<Utils::JsonSchemaManager> m_jsonManager;
 };
 
 } // namespace Internal

src/plugins/qmljseditor/qmljssemanticinfoupdater.cpp

@@ -31,14 +31,20 @@
 **************************************************************************/
 
 #include "qmljssemanticinfoupdater.h"
+#include "qmljseditorplugin.h"
 
 #include <qmljs/qmljsmodelmanagerinterface.h>
 #include <qmljs/qmljsdocument.h>
 #include <qmljs/qmljscheck.h>
+#include <qmljs/jsoncheck.h>
 #include <qmljs/qmljscontext.h>
 #include <qmljs/qmljslink.h>
 #include <qmljstools/qmljsmodelmanager.h>
 
+#include <coreplugin/icore.h>
+
+#include <utils/json.h>
+
 namespace QmlJSEditor {
 namespace Internal {
 
@@ -125,7 +131,14 @@ SemanticInfo SemanticInfoUpdater::makeNewSemanticInfo(const QmlJS::Document::Ptr
     ScopeChain *scopeChain = new ScopeChain(doc, semanticInfo.context);
     semanticInfo.m_rootScopeChain = QSharedPointer<const ScopeChain>(scopeChain);
 
-    if (doc->language() != Document::JsonLanguage) {
+    if (doc->language() == Document::JsonLanguage) {
+        Utils::JsonSchema *schema =
+                QmlJSEditorPlugin::instance()->jsonManager()->schemaForFile(doc->fileName());
+        if (schema) {
+            JsonCheck jsonChecker(doc);
+            semanticInfo.staticAnalysisMessages = jsonChecker(schema);
+        }
+    } else {
         Check checker(doc, semanticInfo.context);
         semanticInfo.staticAnalysisMessages = checker();
     }