fix 'Unexpected item type' error message

The property declaration check shadowed this error.
An erroneous file like

Appliaction {   // mis-spelled Application
    name: "foo"
}

Yielded the error "undeclared property 'name'", when it
should say "I know nothing about Appliaction".

Change-Id: I20d03b13a3fa02b6539950a50d7bae1c5acbfbac
Reviewed-by: Christian Kandeler <christian.kandeler@digia.com>

6 files changed, 25 insertions, 7 deletions

diff --git a/src/lib/language/builtindeclarations.cpp b/src/lib/language/builtindeclarations.cpp
index 3af3f7fd2..385467a9c 100644
--- a/src/lib/language/builtindeclarations.cpp
+++ b/src/lib/language/builtindeclarations.cpp
@@ -124,6 +124,11 @@ QByteArray BuiltinDeclarations::qmlTypeInfo() const
     return result;
 }
 
+bool BuiltinDeclarations::containsType(const QString &typeName) const
+{
+    return m_builtins.contains(typeName);
+}
+
 QList<PropertyDeclaration> BuiltinDeclarations::declarationsForType(const QString &typeName) const
 {
     return m_builtins.value(typeName);
diff --git a/src/lib/language/builtindeclarations.h b/src/lib/language/builtindeclarations.h
index 1f0c26e69..4cbd352a7 100644
--- a/src/lib/language/builtindeclarations.h
+++ b/src/lib/language/builtindeclarations.h
@@ -47,6 +47,7 @@ public:
 
     QString languageVersion() const;
     QByteArray qmlTypeInfo() const;
+    bool containsType(const QString &typeName) const;
     QList<PropertyDeclaration> declarationsForType(const QString &typeName) const;
     void setupItemForBuiltinType(qbs::Internal::Item *item) const;
 
diff --git a/src/lib/language/moduleloader.cpp b/src/lib/language/moduleloader.cpp
index 94786e3df..13c31cbcb 100644
--- a/src/lib/language/moduleloader.cpp
+++ b/src/lib/language/moduleloader.cpp
@@ -125,14 +125,17 @@ ModuleLoaderResult ModuleLoader::load(const QString &filePath,
 
 class PropertyDeclarationCheck : public ValueHandler
 {
+    const BuiltinDeclarations *m_builtins;
     const QHash<Item *, QSet<QString> > &m_validItemPropertyNamesPerItem;
     const QSet<Item *> &m_disabledItems;
     Item *m_parentItem;
     QString m_currentName;
 public:
-    PropertyDeclarationCheck(const QHash<Item *, QSet<QString> > &validItemPropertyNamesPerItem,
+    PropertyDeclarationCheck(const BuiltinDeclarations *builtins,
+          const QHash<Item *, QSet<QString> > &validItemPropertyNamesPerItem,
           const QSet<Item *> &disabledItems)
-        : m_validItemPropertyNamesPerItem(validItemPropertyNamesPerItem)
+        : m_builtins(builtins)
+        , m_validItemPropertyNamesPerItem(validItemPropertyNamesPerItem)
         , m_disabledItems(disabledItems)
         , m_parentItem(0)
     {
@@ -169,6 +172,12 @@ private:
 
     void handleItem(Item *item)
     {
+        if (Q_UNLIKELY(!item->typeName().isEmpty()
+                       && !m_builtins->containsType(item->typeName()))) {
+            const QString msg = Tr::tr("Unexpected item type '%1'.");
+            throw ErrorInfo(msg.arg(item->typeName()), item->location());
+        }
+
         if (m_disabledItems.contains(item) || item->typeName() == QLatin1String("SubProject"))
             return;
 
@@ -250,7 +259,8 @@ void ModuleLoader::handleProject(ModuleLoaderResult *loadResult, Item *item,
         }
     }
 
-    PropertyDeclarationCheck check(m_validItemPropertyNamesPerItem, m_disabledItems);
+    PropertyDeclarationCheck check(m_reader->builtins(), m_validItemPropertyNamesPerItem,
+                                   m_disabledItems);
     check(item);
 
     m_reader->popExtraSearchPaths();
diff --git a/src/lib/language/projectresolver.cpp b/src/lib/language/projectresolver.cpp
index ef6ecc94b..9e89016f9 100644
--- a/src/lib/language/projectresolver.cpp
+++ b/src/lib/language/projectresolver.cpp
@@ -960,10 +960,7 @@ void ProjectResolver::callItemFunction(const ItemFuncMap &mappings, Item *item,
 {
     const QByteArray typeName = item->typeName().toLocal8Bit();
     ItemFuncPtr f = mappings.value(typeName);
-    if (Q_UNLIKELY(!f)) {
-        const QString msg = Tr::tr("Unexpected item type '%1'.");
-        throw ErrorInfo(msg.arg(item->typeName()), item->location());
-    }
+    QBS_CHECK(f);
     if (typeName == "Project") {
         ProjectContext subProjectContext = createProjectContext(projectContext);
         (this->*f)(item, &subProjectContext);
diff --git a/src/lib/language/testdata/erroneous/unknown_item_type.qbs b/src/lib/language/testdata/erroneous/unknown_item_type.qbs
new file mode 100644
index 000000000..9e34e9243
--- /dev/null
+++ b/src/lib/language/testdata/erroneous/unknown_item_type.qbs
@@ -0,0 +1,3 @@
+Narf {
+    zort: 1     // This invalid binding should not hide the "Unexpected item type" error.
+}
diff --git a/src/lib/language/tst_language.cpp b/src/lib/language/tst_language.cpp
index 45cb3a141..75089f2a7 100644
--- a/src/lib/language/tst_language.cpp
+++ b/src/lib/language/tst_language.cpp
@@ -329,6 +329,8 @@ void TestLanguage::erroneousFiles_data()
             << "Item 'cpp' is not declared.";
     QTest::newRow("undeclared_property")
             << "Property 'doesntexist' is not declared.";
+    QTest::newRow("unknown_item_type")
+            << "Unexpected item type 'Narf'";
 }
 
 void TestLanguage::erroneousFiles()