Reduce memory consumption of source coordinates

Reduce memory consumption by storing source location coordinates
as 16-bit variables (in run-time structures).  Also modify qmlmin
to restrict line lengths so that the column bound is not normally
exceeded.

Change-Id: I08605626ffbdf081b6da2aea1116bdfe24998572
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

39 files changed, 279 insertions, 191 deletions

diff --git a/src/qml/qml/qqmlbinding.cpp b/src/qml/qml/qqmlbinding.cpp
index 5860cbe19d..f5f0f49ddd 100644
--- a/src/qml/qml/qqmlbinding.cpp
+++ b/src/qml/qml/qqmlbinding.cpp
@@ -72,7 +72,7 @@ QQmlBinding::Identifier QQmlBinding::Invalid = -1;
 
 QQmlBinding *
 QQmlBinding::createBinding(Identifier id, QObject *obj, QQmlContext *ctxt,
-                                   const QString &url, int lineNumber)
+                                   const QString &url, quint16 lineNumber)
 {
     if (id < 0)
         return 0;
@@ -102,7 +102,7 @@ static QQmlJavaScriptExpression::VTable QQmlBinding_jsvtable = {
 
 QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContext *ctxt)
 : QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
-  m_lineNumber(-1), m_columnNumber(-1)
+  m_lineNumber(0), m_columnNumber(0)
 {
     setNotifyOnValueChanged(true);
     QQmlAbstractExpression::setContext(QQmlContextData::get(ctxt));
@@ -164,7 +164,7 @@ QQmlBinding::QQmlBinding(const QQmlScriptString &script, QObject *obj, QQmlConte
 
 QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContextData *ctxt)
 : QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
-  m_lineNumber(-1), m_columnNumber(-1)
+  m_lineNumber(0), m_columnNumber(0)
 {
     setNotifyOnValueChanged(true);
     QQmlAbstractExpression::setContext(ctxt);
@@ -179,9 +179,9 @@ QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContextData *ctxt
 
 QQmlBinding::QQmlBinding(const QString &str, bool isRewritten, QObject *obj, 
                          QQmlContextData *ctxt,
-                         const QString &url, int lineNumber, int columnNumber)
+                         const QString &url, quint16 lineNumber, quint16 columnNumber)
 : QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
-  m_lineNumber(-1), m_columnNumber(-1)
+  m_url(url), m_lineNumber(lineNumber), m_columnNumber(columnNumber)
 {
     setNotifyOnValueChanged(true);
     QQmlAbstractExpression::setContext(ctxt);
@@ -195,12 +195,9 @@ QQmlBinding::QQmlBinding(const QString &str, bool isRewritten, QObject *obj,
         code = rewriteBinding(str);
     }
 
-    m_url = url;
-    m_lineNumber = lineNumber;
-    m_columnNumber = columnNumber;
     m_expression = str.toUtf8();
 
-    v8function = evalFunction(ctxt, obj, code, url, lineNumber);
+    v8function = evalFunction(ctxt, obj, code, url, m_lineNumber);
 }
 
 /*!  
@@ -212,7 +209,7 @@ QQmlBinding::QQmlBinding(const QString &str, bool isRewritten, QObject *obj,
         new QQmlBinding(&function, scope, ctxt);
  */
 QQmlBinding::QQmlBinding(void *functionPtr, QObject *obj, QQmlContextData *ctxt,
-                         const QString &url, int lineNumber, int columnNumber)
+                         const QString &url, quint16 lineNumber, quint16 columnNumber)
 : QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
   m_url(url), m_lineNumber(lineNumber), m_columnNumber(columnNumber)
 {
@@ -252,13 +249,16 @@ void QQmlBinding::update(QQmlPropertyPrivate::WriteFlags flags)
     if (QQmlData::wasDeleted(object()))
         return;
 
+    int lineNo = qmlSourceCoordinate(m_lineNumber);
+    int columnNo = qmlSourceCoordinate(m_columnNumber);
+
     QQmlTrace trace("General Binding Update");
     trace.addDetail("URL", m_url);
-    trace.addDetail("Line", m_lineNumber);
-    trace.addDetail("Column", m_columnNumber);
+    trace.addDetail("Line", lineNo);
+    trace.addDetail("Column", columnNo);
 
     if (!updatingFlag()) {
-        QQmlBindingProfiler prof(m_url, m_lineNumber, m_columnNumber, QQmlProfilerService::QmlBinding);
+        QQmlBindingProfiler prof(m_url, lineNo, columnNo, QQmlProfilerService::QmlBinding);
         setUpdatingFlag(true);
 
         QQmlAbstractExpression::DeleteWatcher watcher(this);
diff --git a/src/qml/qml/qqmlbinding_p.h b/src/qml/qml/qqmlbinding_p.h
index 888145126c..f8e4dcc039 100644
--- a/src/qml/qml/qqmlbinding_p.h
+++ b/src/qml/qml/qqmlbinding_p.h
@@ -83,9 +83,9 @@ public:
     QQmlBinding(const QQmlScriptString &, QObject *, QQmlContext *);
     QQmlBinding(const QString &, QObject *, QQmlContextData *);
     QQmlBinding(const QString &, bool isRewritten, QObject *, QQmlContextData *, 
-                const QString &url, int lineNumber, int columnNumber);
+                const QString &url, quint16 lineNumber, quint16 columnNumber);
     QQmlBinding(void *, QObject *, QQmlContextData *,
-                const QString &url, int lineNumber, int columnNumber);
+                const QString &url, quint16 lineNumber, quint16 columnNumber);
 
     void setTarget(const QQmlProperty &);
     void setTarget(QObject *, const QQmlPropertyData &, QQmlContextData *);
@@ -119,7 +119,7 @@ public:
     typedef int Identifier;
     static Identifier Invalid;
 
-    static QQmlBinding *createBinding(Identifier, QObject *, QQmlContext *, const QString &, int);
+    static QQmlBinding *createBinding(Identifier, QObject *, QQmlContext *, const QString &, quint16);
 
     QVariant evaluate();
 
@@ -152,8 +152,8 @@ private:
 
     // XXX It would be good if we could get rid of these in most circumstances
     QString m_url;
-    int m_lineNumber;
-    int m_columnNumber;
+    quint16 m_lineNumber;
+    quint16 m_columnNumber;
     QByteArray m_expression;
 };
 
diff --git a/src/qml/qml/qqmlboundsignal.cpp b/src/qml/qml/qqmlboundsignal.cpp
index 5f5e7b09af..071a9ed033 100644
--- a/src/qml/qml/qqmlboundsignal.cpp
+++ b/src/qml/qml/qqmlboundsignal.cpp
@@ -67,7 +67,7 @@ static QQmlJavaScriptExpression::VTable QQmlBoundSignalExpression_jsvtable = {
 };
 
 QQmlBoundSignalExpression::QQmlBoundSignalExpression(QQmlContextData *ctxt, QObject *scope, const QByteArray &expression,
-                                                     bool isRewritten, const QString &fileName, int line, int column)
+                                                     bool isRewritten, const QString &fileName, quint16 line, quint16 column)
     : QQmlJavaScriptExpression(&QQmlBoundSignalExpression_jsvtable)
 {
     setNotifyOnValueChanged(false);
@@ -85,7 +85,7 @@ QQmlBoundSignalExpression::QQmlBoundSignalExpression(QQmlContextData *ctxt, QObj
 }
 
 QQmlBoundSignalExpression::QQmlBoundSignalExpression(QQmlContextData *ctxt, QObject *scope, const QString &expression,
-                                                     bool isRewritten, const QString &fileName, int line, int column)
+                                                     bool isRewritten, const QString &fileName, quint16 line, quint16 column)
     : QQmlJavaScriptExpression(&QQmlBoundSignalExpression_jsvtable)
 {
     setNotifyOnValueChanged(false);
diff --git a/src/qml/qml/qqmlboundsignal_p.h b/src/qml/qml/qqmlboundsignal_p.h
index 81bcb0bc06..879b84294c 100644
--- a/src/qml/qml/qqmlboundsignal_p.h
+++ b/src/qml/qml/qqmlboundsignal_p.h
@@ -61,6 +61,7 @@
 #include <private/qqmlnotifier_p.h>
 #include <private/qflagpointer_p.h>
 #include <private/qqmlrefcount_p.h>
+#include <private/qqmlglobal_p.h>
 #include <private/qobject_p.h>
 
 QT_BEGIN_NAMESPACE
@@ -69,9 +70,9 @@ class Q_QML_PRIVATE_EXPORT QQmlBoundSignalExpression : public QQmlAbstractExpres
 {
 public:
     QQmlBoundSignalExpression(QQmlContextData *ctxt, QObject *scope, const QByteArray &expression,
-                              bool isRewritten, const QString &fileName, int line, int column);
+                              bool isRewritten, const QString &fileName, quint16 line, quint16 column);
     QQmlBoundSignalExpression(QQmlContextData *ctxt, QObject *scope, const QString &expression,
-                              bool isRewritten, const QString &fileName, int line, int column);
+                              bool isRewritten, const QString &fileName, quint16 line, quint16 column);
 
     // "inherited" from QQmlJavaScriptExpression.
     static QString expressionIdentifier(QQmlJavaScriptExpression *);
@@ -81,8 +82,8 @@ public:
     void evaluate(QObject *secondaryScope = 0);
 
     QString sourceFile() const { return m_fileName; }
-    int lineNumber() const { return m_line; }
-    int columnNumber() const { return m_column; }
+    quint16 lineNumber() const { return m_line; }
+    quint16 columnNumber() const { return m_column; }
     QString expression() const;
 
     QQmlEngine *engine() const { return context() ? context()->engine : 0; }
@@ -100,8 +101,8 @@ private:
     QString m_expression;   //only used when expression needs to be rewritten
 
     QString m_fileName;
-    int m_line;
-    int m_column;
+    quint16 m_line;
+    quint16 m_column;
 
     bool m_expressionFunctionValid:1;
     bool m_expressionFunctionRewritten:1;
diff --git a/src/qml/qml/qqmlcompiler_p.h b/src/qml/qml/qqmlcompiler_p.h
index fc80ca9b6b..9d610c00c8 100644
--- a/src/qml/qml/qqmlcompiler_p.h
+++ b/src/qml/qml/qqmlcompiler_p.h
@@ -441,7 +441,7 @@ private:
     {
         ComponentStat() : lineNumber(0), ids(0), objects(0) {}
 
-        int lineNumber;
+        quint16 lineNumber;
 
         int ids;
         QList<QQmlScript::LocationSpan> scriptBindings;
diff --git a/src/qml/qml/qqmldata_p.h b/src/qml/qml/qqmldata_p.h
index 225d6d854d..92c1a0cc68 100644
--- a/src/qml/qml/qqmldata_p.h
+++ b/src/qml/qml/qqmldata_p.h
@@ -164,8 +164,8 @@ public:
     void clearBindingBit(int);
     void setBindingBit(QObject *obj, int);
 
-    ushort lineNumber;
-    ushort columnNumber;
+    quint16 lineNumber;
+    quint16 columnNumber;
 
     QQmlCompiledData *compiledData;
     unsigned int deferredIdx;
diff --git a/src/qml/qml/qqmldirparser.cpp b/src/qml/qml/qqmldirparser.cpp
index 0bfc4eb4bd..ae328ca240 100644
--- a/src/qml/qml/qqmldirparser.cpp
+++ b/src/qml/qml/qqmldirparser.cpp
@@ -98,7 +98,7 @@ bool QQmlDirParser::parse(const QString &source)
     _components.clear();
     _scripts.clear();
 
-    int lineNumber = 0;
+    quint16 lineNumber = 0;
     bool firstLine = true;
 
     const QChar *ch = source.constData();
@@ -141,7 +141,7 @@ bool QQmlDirParser::parse(const QString &source)
             ++ch;
 
         if (invalidLine) {
-            reportError(lineNumber, -1,
+            reportError(lineNumber, 0,
                         QString::fromUtf8("invalid qmldir directive contains too many tokens"));
             continue;
         } else if (sectionCount == 0) {
@@ -149,17 +149,17 @@ bool QQmlDirParser::parse(const QString &source)
 
         } else if (sections[0] == QLatin1String("module")) {
             if (sectionCount != 2) {
-                reportError(lineNumber, -1,
+                reportError(lineNumber, 0,
                             QString::fromUtf8("module identifier directive requires one argument, but %1 were provided").arg(sectionCount - 1));
                 continue;
             }
             if (!_typeNamespace.isEmpty()) {
-                reportError(lineNumber, -1,
+                reportError(lineNumber, 0,
                             QString::fromUtf8("only one module identifier directive may be defined in a qmldir file"));
                 continue;
             }
             if (!firstLine) {
-                reportError(lineNumber, -1,
+                reportError(lineNumber, 0,
                             QString::fromUtf8("module identifier directive must be the first command in a qmldir file"));
                 continue;
             }
@@ -168,7 +168,7 @@ bool QQmlDirParser::parse(const QString &source)
 
         } else if (sections[0] == QLatin1String("plugin")) {
             if (sectionCount < 2) {
-                reportError(lineNumber, -1,
+                reportError(lineNumber, 0,
                             QString::fromUtf8("plugin directive requires one or two arguments, but %1 were provided").arg(sectionCount - 1));
 
                 continue;
@@ -180,7 +180,7 @@ bool QQmlDirParser::parse(const QString &source)
 
         } else if (sections[0] == QLatin1String("internal")) {
             if (sectionCount != 3) {
-                reportError(lineNumber, -1,
+                reportError(lineNumber, 0,
                             QString::fromUtf8("internal types require 2 arguments, but %1 were provided").arg(sectionCount - 1));
                 continue;
             }
@@ -189,7 +189,7 @@ bool QQmlDirParser::parse(const QString &source)
             _components.insertMulti(entry.typeName, entry);
         } else if (sections[0] == QLatin1String("typeinfo")) {
             if (sectionCount != 2) {
-                reportError(lineNumber, -1,
+                reportError(lineNumber, 0,
                             QString::fromUtf8("typeinfo requires 1 argument, but %1 were provided").arg(sectionCount - 1));
                 continue;
             }
@@ -207,9 +207,9 @@ bool QQmlDirParser::parse(const QString &source)
             const int dotIndex = version.indexOf(QLatin1Char('.'));
 
             if (dotIndex == -1) {
-                reportError(lineNumber, -1, QLatin1String("expected '.'"));
+                reportError(lineNumber, 0, QLatin1String("expected '.'"));
             } else if (version.indexOf(QLatin1Char('.'), dotIndex + 1) != -1) {
-                reportError(lineNumber, -1, QLatin1String("unexpected '.'"));
+                reportError(lineNumber, 0, QLatin1String("unexpected '.'"));
             } else {
                 bool validVersionNumber = false;
                 const int majorVersion = parseInt(QStringRef(&version, 0, dotIndex), &validVersionNumber);
@@ -232,7 +232,7 @@ bool QQmlDirParser::parse(const QString &source)
                 }
             }
         } else {
-            reportError(lineNumber, -1, 
+            reportError(lineNumber, 0,
                         QString::fromUtf8("a component declaration requires two or three arguments, but %1 were provided").arg(sectionCount));
         }
 
@@ -242,7 +242,7 @@ bool QQmlDirParser::parse(const QString &source)
     return hasError();
 }
 
-void QQmlDirParser::reportError(int line, int column, const QString &description)
+void QQmlDirParser::reportError(quint16 line, quint16 column, const QString &description)
 {
     QQmlError error;
     error.setLine(line);
diff --git a/src/qml/qml/qqmldirparser_p.h b/src/qml/qml/qqmldirparser_p.h
index 7a9078180e..c4358f133e 100644
--- a/src/qml/qml/qqmldirparser_p.h
+++ b/src/qml/qml/qqmldirparser_p.h
@@ -138,7 +138,7 @@ public:
 #endif
 
 private:
-    void reportError(int line, int column, const QString &message);
+    void reportError(quint16 line, quint16 column, const QString &message);
 
 private:
     QList<QQmlError> _errors;
diff --git a/src/qml/qml/qqmlerror.cpp b/src/qml/qml/qqmlerror.cpp
index ce7fd01fdf..fc1c1b5998 100644
--- a/src/qml/qml/qqmlerror.cpp
+++ b/src/qml/qml/qqmlerror.cpp
@@ -40,6 +40,7 @@
 ****************************************************************************/
 
 #include "qqmlerror.h"
+#include "qqmlglobal_p.h"
 
 #include <QtCore/qdebug.h>
 #include <QtCore/qfile.h>
@@ -81,12 +82,12 @@ public:
 
     QUrl url;
     QString description;
-    int line;
-    int column;
+    quint16 line;
+    quint16 column;
 };
 
 QQmlErrorPrivate::QQmlErrorPrivate()
-: line(-1), column(-1)
+: line(0), column(0)
 {
 }
 
@@ -182,7 +183,7 @@ void QQmlError::setDescription(const QString &description)
 */
 int QQmlError::line() const
 {
-    if (d) return d->line;
+    if (d) return qmlSourceCoordinate(d->line);
     else return -1;
 }
 
@@ -192,7 +193,7 @@ int QQmlError::line() const
 void QQmlError::setLine(int line)
 {
     if (!d) d = new QQmlErrorPrivate;
-    d->line = line;
+    d->line = qmlSourceCoordinate(line);
 }
 
 /*!
@@ -200,7 +201,7 @@ void QQmlError::setLine(int line)
 */
 int QQmlError::column() const
 {
-    if (d) return d->column;
+    if (d) return qmlSourceCoordinate(d->column);
     else return -1;
 }
 
@@ -210,7 +211,7 @@ int QQmlError::column() const
 void QQmlError::setColumn(int column)
 {
     if (!d) d = new QQmlErrorPrivate;
-    d->column = column;
+    d->column = qmlSourceCoordinate(column);
 }
 
 /*!
@@ -219,14 +220,20 @@ void QQmlError::setColumn(int column)
 QString QQmlError::toString() const
 {
     QString rv;
-    if (url().isEmpty()) {
+
+    QUrl u(url());
+    int l(line());
+
+    if (u.isEmpty()) {
         rv = QLatin1String("<Unknown File>");
-    } else if (line() != -1) {
-        rv = url().toString() + QLatin1Char(':') + QString::number(line());
-        if(column() != -1) 
-            rv += QLatin1Char(':') + QString::number(column());
+    } else if (l != -1) {
+        rv = u.toString() + QLatin1Char(':') + QString::number(l);
+
+        int c(column());
+        if (c != -1)
+            rv += QLatin1Char(':') + QString::number(c);
     } else {
-        rv = url().toString();
+        rv = u.toString();
     }
 
     rv += QLatin1String(": ") + description();
diff --git a/src/qml/qml/qqmlexpression.cpp b/src/qml/qml/qqmlexpression.cpp
index 76d31448e5..d003b5af3f 100644
--- a/src/qml/qml/qqmlexpression.cpp
+++ b/src/qml/qml/qqmlexpression.cpp
@@ -42,6 +42,7 @@
 #include "qqmlexpression.h"
 #include "qqmlexpression_p.h"
 
+#include "qqmlglobal_p.h"
 #include "qqmlengine_p.h"
 #include "qqmlcontext_p.h"
 #include "qqmlrewrite_p.h"
@@ -60,7 +61,7 @@ static QQmlJavaScriptExpression::VTable QQmlExpressionPrivate_jsvtable = {
 QQmlExpressionPrivate::QQmlExpressionPrivate()
 : QQmlJavaScriptExpression(&QQmlExpressionPrivate_jsvtable),
   expressionFunctionValid(true), expressionFunctionRewritten(false),
-  line(-1)
+  line(0), column(0)
 {
 }
 
@@ -82,7 +83,7 @@ void QQmlExpressionPrivate::init(QQmlContextData *ctxt, const QString &expr, QOb
 
 void QQmlExpressionPrivate::init(QQmlContextData *ctxt, const QString &expr,
                                  bool isRewritten, QObject *me, const QString &srcUrl,
-                                 int lineNumber, int columnNumber)
+                                 quint16 lineNumber, quint16 columnNumber)
 {
     url = srcUrl;
     line = lineNumber;
@@ -99,7 +100,7 @@ void QQmlExpressionPrivate::init(QQmlContextData *ctxt, const QString &expr,
 
 void QQmlExpressionPrivate::init(QQmlContextData *ctxt, const QByteArray &expr,
                                  bool isRewritten, QObject *me, const QString &srcUrl,
-                                 int lineNumber, int columnNumber)
+                                 quint16 lineNumber, quint16 columnNumber)
 {
     url = srcUrl;
     line = lineNumber;
@@ -127,7 +128,7 @@ void QQmlExpressionPrivate::init(QQmlContextData *ctxt, const QByteArray &expr,
 QQmlExpression *
 QQmlExpressionPrivate::create(QQmlContextData *ctxt, QObject *object,
                               const QString &expr, bool isRewritten,
-                              const QString &url, int lineNumber, int columnNumber)
+                              const QString &url, quint16 lineNumber, quint16 columnNumber)
 {
     return new QQmlExpression(ctxt, object, expr, isRewritten, url, lineNumber, columnNumber,
                               *new QQmlExpressionPrivate);
@@ -183,7 +184,7 @@ QQmlExpression::QQmlExpression(QQmlContextData *ctxt,
 : QObject(dd, 0)
 {
     Q_D(QQmlExpression);
-    d->init(ctxt, expr, isRewritten, object, url, lineNumber, columnNumber);
+    d->init(ctxt, expr, isRewritten, object, url, qmlSourceCoordinate(lineNumber), qmlSourceCoordinate(columnNumber));
 }
 
 /*!  \internal */
@@ -195,7 +196,7 @@ QQmlExpression::QQmlExpression(QQmlContextData *ctxt,
 : QObject(dd, 0)
 {
     Q_D(QQmlExpression);
-    d->init(ctxt, expr, isRewritten, object, url, lineNumber, columnNumber);
+    d->init(ctxt, expr, isRewritten, object, url, qmlSourceCoordinate(lineNumber), qmlSourceCoordinate(columnNumber));
 }
 
 /*!
@@ -450,7 +451,7 @@ QString QQmlExpression::sourceFile() const
 int QQmlExpression::lineNumber() const
 {
     Q_D(const QQmlExpression);
-    return d->line;
+    return qmlSourceCoordinate(d->line);
 }
 
 /*!
@@ -460,7 +461,7 @@ int QQmlExpression::lineNumber() const
 int QQmlExpression::columnNumber() const
 {
     Q_D(const QQmlExpression);
-    return d->column;
+    return qmlSourceCoordinate(d->column);
 }
 
 /*!
@@ -471,8 +472,8 @@ void QQmlExpression::setSourceLocation(const QString &url, int line, int column)
 {
     Q_D(QQmlExpression);
     d->url = url;
-    d->line = line;
-    d->column = column;
+    d->line = qmlSourceCoordinate(line);
+    d->column = qmlSourceCoordinate(column);
 }
 
 /*!
diff --git a/src/qml/qml/qqmlexpression_p.h b/src/qml/qml/qqmlexpression_p.h
index 372d72c655..3108be26d8 100644
--- a/src/qml/qml/qqmlexpression_p.h
+++ b/src/qml/qml/qqmlexpression_p.h
@@ -79,8 +79,8 @@ public:
     ~QQmlExpressionPrivate();
 
     void init(QQmlContextData *, const QString &, QObject *);
-    void init(QQmlContextData *, const QString &, bool, QObject *, const QString &, int, int);
-    void init(QQmlContextData *, const QByteArray &, bool, QObject *, const QString &, int, int);
+    void init(QQmlContextData *, const QString &, bool, QObject *, const QString &, quint16, quint16);
+    void init(QQmlContextData *, const QByteArray &, bool, QObject *, const QString &, quint16, quint16);
 
     QVariant value(bool *isUndefined = 0);
 
@@ -92,7 +92,7 @@ public:
     void _q_notify();
 
     static QQmlExpression *create(QQmlContextData *, QObject *, const QString &, bool,
-                                  const QString &, int, int);
+                                  const QString &, quint16, quint16);
 
     bool expressionFunctionValid:1;
     bool expressionFunctionRewritten:1;
@@ -109,8 +109,8 @@ public:
     v8::Persistent<v8::Function> v8function;
 
     QString url; // This is a QString for a reason.  QUrls are slooooooow...
-    int line;
-    int column;
+    quint16 line;
+    quint16 column;
     QString name; //function name, hint for the debugger
 };
 
diff --git a/src/qml/qml/qqmlglobal_p.h b/src/qml/qml/qqmlglobal_p.h
index ff337634ee..e79a91f035 100644
--- a/src/qml/qml/qqmlglobal_p.h
+++ b/src/qml/qml/qqmlglobal_p.h
@@ -165,6 +165,16 @@ T qmlobject_cast(QObject *object)
         return 0;
 }
 
+inline quint16 qmlSourceCoordinate(int n)
+{
+    return (n > 0 && n <= USHRT_MAX) ? static_cast<quint16>(n) : 0;
+}
+
+inline int qmlSourceCoordinate(quint16 n)
+{
+    return (n == 0) ? -1 : static_cast<int>(n);
+}
+
 #define IS_SIGNAL_CONNECTED(Sender, SenderType, Name, Arguments) \
 do { \
     QObject *sender = (Sender); \
diff --git a/src/qml/qml/qqmljavascriptexpression.cpp b/src/qml/qml/qqmljavascriptexpression.cpp
index a33db84a7f..650123bb8c 100644
--- a/src/qml/qml/qqmljavascriptexpression.cpp
+++ b/src/qml/qml/qqmljavascriptexpression.cpp
@@ -67,7 +67,7 @@ void QQmlDelayedError::setMessage(v8::Handle<v8::Message> message)
     m_message = qPersistentNew<v8::Message>(message);
 }
 
-void QQmlDelayedError::setErrorLocation(const QUrl &url, int line, int column)
+void QQmlDelayedError::setErrorLocation(const QUrl &url, quint16 line, quint16 column)
 {
     m_error.setUrl(url);
     m_error.setLine(line);
@@ -322,7 +322,7 @@ void QQmlJavaScriptExpression::exceptionToError(v8::Handle<v8::Message> message,
 v8::Persistent<v8::Function>
 QQmlJavaScriptExpression::evalFunction(QQmlContextData *ctxt, QObject *scope,
                                        const char *code, int codeLength,
-                                       const QString &filename, int line,
+                                       const QString &filename, quint16 line,
                                        v8::Persistent<v8::Object> *qmlscope)
 {
     QQmlEngine *engine = ctxt->engine;
@@ -364,7 +364,7 @@ QQmlJavaScriptExpression::evalFunction(QQmlContextData *ctxt, QObject *scope,
 // Callee owns the persistent handle
 v8::Persistent<v8::Function>
 QQmlJavaScriptExpression::evalFunction(QQmlContextData *ctxt, QObject *scope,
-                                       const QString &code, const QString &filename, int line,
+                                       const QString &code, const QString &filename, quint16 line,
                                        v8::Persistent<v8::Object> *qmlscope)
 {
     QQmlEngine *engine = ctxt->engine;
diff --git a/src/qml/qml/qqmljavascriptexpression_p.h b/src/qml/qml/qqmljavascriptexpression_p.h
index 4c89a086a3..dc9b4b63c6 100644
--- a/src/qml/qml/qqmljavascriptexpression_p.h
+++ b/src/qml/qml/qqmljavascriptexpression_p.h
@@ -82,7 +82,7 @@ public:
     inline void clearError() { qPersistentDispose(m_message); m_error = QQmlError(); }
 
     void setMessage(v8::Handle<v8::Message> message);
-    void setErrorLocation(const QUrl &url, int line, int column);
+    void setErrorLocation(const QUrl &url, quint16 line, quint16 column);
     void setErrorDescription(const QString &description);
 
 private:
@@ -146,11 +146,11 @@ public:
     static void exceptionToError(v8::Handle<v8::Message>, QQmlError &);
     static v8::Persistent<v8::Function> evalFunction(QQmlContextData *ctxt, QObject *scope,
                                                      const QString &code, const QString &filename,
-                                                     int line,
+                                                     quint16 line,
                                                      v8::Persistent<v8::Object> *qmlscope = 0);
     static v8::Persistent<v8::Function> evalFunction(QQmlContextData *ctxt, QObject *scope,
                                                      const char *code, int codeLength,
-                                                     const QString &filename, int line,
+                                                     const QString &filename, quint16 line,
                                                      v8::Persistent<v8::Object> *qmlscope = 0);
 protected:
     ~QQmlJavaScriptExpression();
diff --git a/src/qml/qml/qqmlscript.cpp b/src/qml/qml/qqmlscript.cpp
index 985b6b6181..eb55f9fa71 100644
--- a/src/qml/qml/qqmlscript.cpp
+++ b/src/qml/qml/qqmlscript.cpp
@@ -760,7 +760,7 @@ ProcessAST::defineObjectBinding(AST::UiQualifiedId *propertyName,
                     state.property->addValue(v);
                 } else {
                     Property *defaultProp = state.object->getDefaultProperty();
-                    if (defaultProp->location.start.line == -1) {
+                    if (defaultProp->location.start.line == 0) {
                         defaultProp->location = v->location;
                         defaultProp->location.end = defaultProp->location.start;
                         defaultProp->location.range.length = 0;
@@ -1523,8 +1523,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
         int startColumn = l.tokenStartColumn();
 
         QQmlError importError;
-        importError.setLine(startLine);
-        importError.setColumn(startColumn);
+        importError.setLine(startLine + 1); // 0-based, adjust to be 1-based
 
         token = l.lex();
 
@@ -1545,6 +1544,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
 
                 if (!file.endsWith(js)) {
                     importError.setDescription(QCoreApplication::translate("QQmlParser","Imported file must be a script"));
+                    importError.setColumn(l.tokenStartColumn());
                     *error = importError;
                     return rv;
                 }
@@ -1565,6 +1565,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
 
                 if (invalidImport) {
                     importError.setDescription(QCoreApplication::translate("QQmlParser","File import requires a qualifier"));
+                    importError.setColumn(l.tokenStartColumn());
                     *error = importError;
                     return rv;
                 }
@@ -1580,6 +1581,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
 
                 if (!importId.at(0).isUpper() || (l.tokenStartLine() == startLine)) {
                     importError.setDescription(QCoreApplication::translate("QQmlParser","Invalid import qualifier"));
+                    importError.setColumn(l.tokenStartColumn());
                     *error = importError;
                     return rv;
                 }
@@ -1600,6 +1602,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
                 while (true) {
                     if (!isUriToken(token)) {
                         importError.setDescription(QCoreApplication::translate("QQmlParser","Invalid module URI"));
+                        importError.setColumn(l.tokenStartColumn());
                         *error = importError;
                         return rv;
                     }
@@ -1619,6 +1622,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
 
                 if (token != QQmlJSGrammar::T_NUMERIC_LITERAL) {
                     importError.setDescription(QCoreApplication::translate("QQmlParser","Module import requires a version"));
+                    importError.setColumn(l.tokenStartColumn());
                     *error = importError;
                     return rv;
                 }
@@ -1643,6 +1647,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
 
                 if (invalidImport) {
                     importError.setDescription(QCoreApplication::translate("QQmlParser","Module import requires a qualifier"));
+                    importError.setColumn(l.tokenStartColumn());
                     *error = importError;
                     return rv;
                 }
@@ -1658,6 +1663,7 @@ QQmlScript::Parser::JavaScriptMetaData QQmlScript::Parser::extractMetaData(QStri
 
                 if (!importId.at(0).isUpper() || (l.tokenStartLine() == startLine)) {
                     importError.setDescription(QCoreApplication::translate("QQmlParser","Invalid import qualifier"));
+                    importError.setColumn(l.tokenStartColumn());
                     *error = importError;
                     return rv;
                 }
diff --git a/src/qml/qml/qqmlscript_p.h b/src/qml/qml/qqmlscript_p.h
index 60e667e4ea..f2e108e3d7 100644
--- a/src/qml/qml/qqmlscript_p.h
+++ b/src/qml/qml/qqmlscript_p.h
@@ -76,9 +76,9 @@ namespace QQmlScript {
 
 struct Location 
 {
-    Location() : line(-1), column(-1) {}
-    int line;
-    int column;
+    Location() : line(0), column(0) {}
+    quint16 line;
+    quint16 column;
 
     inline bool operator<(const Location &other) {
         return line < other.line || 
diff --git a/src/qml/qml/qqmlscriptstring_p.h b/src/qml/qml/qqmlscriptstring_p.h
index 97c02d21d7..362adb9157 100644
--- a/src/qml/qml/qqmlscriptstring_p.h
+++ b/src/qml/qml/qqmlscriptstring_p.h
@@ -50,7 +50,7 @@ QT_BEGIN_NAMESPACE
 class Q_AUTOTEST_EXPORT QQmlScriptStringPrivate : public QSharedData
 {
 public:
-    QQmlScriptStringPrivate() : context(0), scope(0), bindingId(-1), lineNumber(-1), columnNumber(-1),
+    QQmlScriptStringPrivate() : context(0), scope(0), bindingId(-1), lineNumber(0), columnNumber(0),
         numberValue(0), isStringLiteral(false), isNumberLiteral(false) {}
 
     //for testing
@@ -60,8 +60,8 @@ public:
     QObject *scope;
     QString script;
     int bindingId;
-    int lineNumber;
-    int columnNumber;
+    quint16 lineNumber;
+    quint16 columnNumber;
     double numberValue;
     bool isStringLiteral;
     bool isNumberLiteral;
diff --git a/src/qml/qml/qqmlvme.cpp b/src/qml/qml/qqmlvme.cpp
index 60e911d935..d6b60f724c 100644
--- a/src/qml/qml/qqmlvme.cpp
+++ b/src/qml/qml/qqmlvme.cpp
@@ -773,8 +773,8 @@ QObject *QQmlVME::run(QList<QQmlError> *errors,
             QObject *scope = objects.at(objects.count() - 1 - instr.scope);
             QQmlScriptString ss(PRIMITIVES.at(instr.value), CTXT->asQQmlContext(), scope);
             ss.d.data()->bindingId = instr.bindingId;
-            ss.d.data()->lineNumber = instr.line;
-            ss.d.data()->columnNumber = instr.column;
+            ss.d.data()->lineNumber = qmlSourceCoordinate(instr.line);
+            ss.d.data()->columnNumber = qmlSourceCoordinate(instr.column);
             ss.d.data()->isStringLiteral = instr.isStringLiteral;
             ss.d.data()->isNumberLiteral = instr.isNumberLiteral;
             ss.d.data()->numberValue = instr.numberValue;
diff --git a/src/qml/qml/qqmlvmemetaobject.cpp b/src/qml/qml/qqmlvmemetaobject.cpp
index 902a6073b8..2ebb4526df 100644
--- a/src/qml/qml/qqmlvmemetaobject.cpp
+++ b/src/qml/qml/qqmlvmemetaobject.cpp
@@ -66,7 +66,7 @@ QQmlVMEVariantQObjectPtr::~QQmlVMEVariantQObjectPtr()
 {
 }
 
-void QQmlVMEVariantQObjectPtr::objectDestroyed(QObject *o)
+void QQmlVMEVariantQObjectPtr::objectDestroyed(QObject *)
 {
     if (m_target && m_index >= 0) {
         if (m_isVar && m_target->varPropertiesInitialized && !m_target->varProperties.IsEmpty()) {
@@ -1151,7 +1151,7 @@ void QQmlVMEMetaObject::registerInterceptor(int index, int valueIndex, QQmlPrope
     interceptors = interceptor;
 }
 
-int QQmlVMEMetaObject::vmeMethodLineNumber(int index)
+quint16 QQmlVMEMetaObject::vmeMethodLineNumber(int index)
 {
     if (index < methodOffset()) {
         Q_ASSERT(parent.isT1());
diff --git a/src/qml/qml/qqmlvmemetaobject_p.h b/src/qml/qml/qqmlvmemetaobject_p.h
index 4216e09733..3d70761563 100644
--- a/src/qml/qml/qqmlvmemetaobject_p.h
+++ b/src/qml/qml/qqmlvmemetaobject_p.h
@@ -122,7 +122,7 @@ struct QQmlVMEMetaData
         int parameterCount;
         int bodyOffset;
         int bodyLength;
-        int lineNumber;
+        quint16 lineNumber;
     };
 
     PropertyData *propertyData() const {
@@ -167,7 +167,7 @@ public:
     bool aliasTarget(int index, QObject **target, int *coreIndex, int *valueTypeIndex) const;
     void registerInterceptor(int index, int valueIndex, QQmlPropertyValueInterceptor *interceptor);
     v8::Handle<v8::Function> vmeMethod(int index);
-    int vmeMethodLineNumber(int index);
+    quint16 vmeMethodLineNumber(int index);
     void setVmeMethod(int index, v8::Persistent<v8::Function>);
     v8::Handle<v8::Value> vmeProperty(int index);
     void setVMEProperty(int index, v8::Handle<v8::Value> v);
diff --git a/src/qml/qml/v4/qv4bindings.cpp b/src/qml/qml/v4/qv4bindings.cpp
index 02f2bfc863..643a6197fb 100644
--- a/src/qml/qml/v4/qv4bindings.cpp
+++ b/src/qml/qml/v4/qv4bindings.cpp
@@ -299,7 +299,7 @@ QV4Bindings::~QV4Bindings()
 }
 
 QQmlAbstractBinding *QV4Bindings::configBinding(int index, int fallbackIndex, QObject *target, QObject *scope,
-                                                int property, int propType, int line, int column)
+                                                int property, int propType, quint16 line, quint16 column)
 {
     Q_ASSERT(propType <= std::numeric_limits<quint16>::max());
 
@@ -556,7 +556,7 @@ QByteArray testResultToString(const QVariant &result, bool undefined)
     }
 }
 
-static void testBindingResult(const QString &binding, int line, int column, 
+static void testBindingResult(const QString &binding, quint16 line, quint16 column,
                               QQmlContextData *context, QObject *scope, 
                               const Register &result, int resultType)
 {
@@ -658,7 +658,7 @@ static void testBindingResult(const QString &binding, int line, int column,
     }
 }
 
-static void testBindingException(const QString &binding, int line, int column, 
+static void testBindingException(const QString &binding, quint16 line, quint16 column,
                                  QQmlContextData *context, QObject *scope)
 {
     QQmlExpression expression(context->asQQmlContext(), scope, binding);
@@ -683,8 +683,8 @@ static void throwException(int id, QQmlDelayedError *error,
     else
         error->setErrorDescription(description);
     if (id != 0xFF) {
-        quint64 e = *((quint64 *)(program->data() + program->exceptionDataOffset) + id); 
-        error->setErrorLocation(context->url, (e >> 32) & 0xFFFFFFFF, e & 0xFFFFFFFF);
+        quint32 e = *((quint32 *)(program->data() + program->exceptionDataOffset) + id);
+        error->setErrorLocation(context->url, (e >> 16), (e & 0xFFFF));
     } else {
         error->setErrorLocation(context->url, -1, -1);
     }
diff --git a/src/qml/qml/v4/qv4bindings_p.h b/src/qml/qml/v4/qv4bindings_p.h
index dd63f6d9f5..eae5703c50 100644
--- a/src/qml/qml/v4/qv4bindings_p.h
+++ b/src/qml/qml/v4/qv4bindings_p.h
@@ -73,7 +73,7 @@ public:
 
     QQmlAbstractBinding *configBinding(int index, int fallbackIndex, QObject *target,
                                        QObject *scope, int property, int propType,
-                                       int line, int column);
+                                       quint16 line, quint16 column);
 
 #ifdef QML_THREADED_INTERPRETER
     static void **getDecodeInstrTable();
@@ -107,8 +107,8 @@ public:
         quint16 propType;
 
         QObject *scope;
-        int line;
-        int column;
+        quint16 line;
+        quint16 column;
         QPointerValuePair<QObject, Retarget> target;
         quint32 executedBlocks;
 
diff --git a/src/qml/qml/v4/qv4compiler.cpp b/src/qml/qml/v4/qv4compiler.cpp
index b697204839..1506d09ce9 100644
--- a/src/qml/qml/v4/qv4compiler.cpp
+++ b/src/qml/qml/v4/qv4compiler.cpp
@@ -73,7 +73,7 @@ QV4CompilerPrivate::QV4CompilerPrivate()
 //
 // tracing
 //
-void QV4CompilerPrivate::trace(int line, int column)
+void QV4CompilerPrivate::trace(quint16 line, quint16 column)
 {
     bytecode.clear();
 
@@ -1401,13 +1401,13 @@ quint32 QV4CompilerPrivate::subscriptionBlockMask(const QStringList &sub)
     return *uiter;
 }
 
-quint8 QV4CompilerPrivate::exceptionId(quint32 line, quint32 column)
+quint8 QV4CompilerPrivate::exceptionId(quint16 line, quint16 column)
 {
     quint8 rv = 0xFF;
     if (exceptions.count() < 0xFF) {
         rv = (quint8)exceptions.count();
-        quint64 e = line;
-        e <<= 32;
+        quint32 e = line;
+        e <<= 16;
         e |= column;
         exceptions.append(e);
     }
@@ -1493,7 +1493,7 @@ QByteArray QV4CompilerPrivate::buildSignalTable() const
 QByteArray QV4CompilerPrivate::buildExceptionData() const
 {
     QByteArray rv;
-    rv.resize(committed.exceptions.count() * sizeof(quint64));
+    rv.resize(committed.exceptions.count() * sizeof(quint32));
     ::memcpy(rv.data(), committed.exceptions.constData(), rv.size());
     return rv;
 }
diff --git a/src/qml/qml/v4/qv4compiler_p_p.h b/src/qml/qml/v4/qv4compiler_p_p.h
index 12beaa0fbb..989e428350 100644
--- a/src/qml/qml/v4/qv4compiler_p_p.h
+++ b/src/qml/qml/v4/qv4compiler_p_p.h
@@ -136,9 +136,9 @@ public:
     int subscriptionIndex(const QStringList &);
     quint32 subscriptionBlockMask(const QStringList &);
 
-    quint8 exceptionId(quint32 line, quint32 column);
+    quint8 exceptionId(quint16 line, quint16 column);
     quint8 exceptionId(QQmlJS::AST::ExpressionNode *);
-    QVector<quint64> exceptions;
+    QVector<quint32> exceptions;
 
     QQmlAssociationList<int, quint32> usedSubscriptionIds;
     int subscriptionOffset;
@@ -164,7 +164,7 @@ public:
         //QQmlJS::Bytecode bytecode;
         QByteArray bytecode;
         QByteArray data;
-        QVector<quint64> exceptions;
+        QVector<quint32> exceptions;
         int subscriptionCount;
         QList<QQmlAssociationList<QString, int> > subscriptions;
 
@@ -191,7 +191,7 @@ protected:
     //
     // tracing
     //
-    void trace(int line, int column);
+    void trace(quint16 line, quint16 column);
     void trace(QVector<QQmlJS::IR::BasicBlock *> *blocks);
     void traceExpression(QQmlJS::IR::Expr *e, quint8 r);
 
@@ -235,8 +235,8 @@ private:
 
     bool usedSubscriptionIdsChanged;
     quint32 currentBlockMask;
-    int bindingLine;
-    int bindingColumn;
+    quint16 bindingLine;
+    quint16 bindingColumn;
     bool invalidatable;
 };
 
diff --git a/src/qml/qml/v4/qv4instruction_p.h b/src/qml/qml/v4/qv4instruction_p.h
index 2e06bd0850..763cd2d67b 100644
--- a/src/qml/qml/v4/qv4instruction_p.h
+++ b/src/qml/qml/v4/qv4instruction_p.h
@@ -231,7 +231,7 @@ union Q_AUTOTEST_EXPORT V4Instr {
     struct instr_id {
         QML_V4_INSTR_HEADER
         quint16 column;
-        quint32 line;
+        quint16 line;
     };
 
     struct instr_init {
diff --git a/src/qml/qml/v4/qv4ir.cpp b/src/qml/qml/v4/qv4ir.cpp
index ed25f28fa3..51f61716f0 100644
--- a/src/qml/qml/v4/qv4ir.cpp
+++ b/src/qml/qml/v4/qv4ir.cpp
@@ -210,7 +210,7 @@ QString String::escape(const QStringRef &s)
     return r;
 }
 
-void Name::init(Name *base, Type type, const QString *id, Symbol symbol, quint32 line, quint32 column)
+void Name::init(Name *base, Type type, const QString *id, Symbol symbol, quint16 line, quint16 column)
 {
     this->type = type;
     this->base = base;
@@ -482,12 +482,12 @@ Expr *BasicBlock::STRING(const QStringRef &value)
     return e;
 }
 
-Name *BasicBlock::NAME(const QString &id, quint32 line, quint32 column)
+Name *BasicBlock::NAME(const QString &id, quint16 line, quint16 column)
 { 
     return NAME(0, id, line, column);
 }
 
-Name *BasicBlock::NAME(Name *base, const QString &id, quint32 line, quint32 column)
+Name *BasicBlock::NAME(Name *base, const QString &id, quint16 line, quint16 column)
 { 
     Name *e = function->pool->New<Name>();
     e->init(base, InvalidType,
@@ -497,7 +497,7 @@ Name *BasicBlock::NAME(Name *base, const QString &id, quint32 line, quint32 colu
 }
 
 Name *BasicBlock::SYMBOL(Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, Name::Storage storage,
-                         quint32 line, quint32 column)
+                         quint16 line, quint16 column)
 {
     Name *name = SYMBOL(/*base = */ 0, type, id, meta, property, line, column);
     name->storage = storage;
@@ -505,7 +505,7 @@ Name *BasicBlock::SYMBOL(Type type, const QString &id, const QQmlMetaObject &met
 }
 
 Name *BasicBlock::SYMBOL(Name *base, Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, Name::Storage storage,
-                         quint32 line, quint32 column)
+                         quint16 line, quint16 column)
 {
     Name *name = function->pool->New<Name>();
     name->init(base, type, function->newString(id),
@@ -517,7 +517,7 @@ Name *BasicBlock::SYMBOL(Name *base, Type type, const QString &id, const QQmlMet
 }
 
 Name *BasicBlock::SYMBOL(Name *base, Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property,
-                         quint32 line, quint32 column)
+                         quint16 line, quint16 column)
 {
     Name *name = function->pool->New<Name>();
     name->init(base, type, function->newString(id),
@@ -527,7 +527,7 @@ Name *BasicBlock::SYMBOL(Name *base, Type type, const QString &id, const QQmlMet
     return name;
 }
 
-Name *BasicBlock::ID_OBJECT(const QString &id, const QQmlScript::Object *object, quint32 line, quint32 column)
+Name *BasicBlock::ID_OBJECT(const QString &id, const QQmlScript::Object *object, quint16 line, quint16 column)
 {
     Name *name = function->pool->New<Name>();
     name->init(/*base = */ 0, IR::ObjectType,
@@ -540,7 +540,7 @@ Name *BasicBlock::ID_OBJECT(const QString &id, const QQmlScript::Object *object,
 }
 
 Name *BasicBlock::ATTACH_TYPE(const QString &id, const QQmlType *attachType, Name::Storage storage,
-                              quint32 line, quint32 column)
+                              quint16 line, quint16 column)
 { 
     Name *name = function->pool->New<Name>();
     name->init(/*base = */ 0, IR::AttachType,
@@ -552,7 +552,7 @@ Name *BasicBlock::ATTACH_TYPE(const QString &id, const QQmlType *attachType, Nam
 }
 
 Name *BasicBlock::MODULE_OBJECT(const QString &id, const QQmlMetaObject &meta, Name::Storage storage,
-                                quint32 line, quint32 column)
+                                quint16 line, quint16 column)
 {
     Name *name = function->pool->New<Name>();
     name->init(/*base = */ 0, IR::ObjectType,
@@ -668,7 +668,7 @@ Stmt *BasicBlock::CJUMP(Expr *cond, BasicBlock *iftrue, BasicBlock *iffalse)
     return s;
 }
 
-Stmt *BasicBlock::RET(Expr *expr, Type type, quint32 line, quint32 column)
+Stmt *BasicBlock::RET(Expr *expr, Type type, quint16 line, quint16 column)
 {
     if (isTerminated())
         return 0;
diff --git a/src/qml/qml/v4/qv4ir_p.h b/src/qml/qml/v4/qv4ir_p.h
index 9b36762356..f6e20a7187 100644
--- a/src/qml/qml/v4/qv4ir_p.h
+++ b/src/qml/qml/v4/qv4ir_p.h
@@ -283,10 +283,10 @@ struct Name: Expr {
     QQmlPropertyData *property;
     Storage storage;
     BuiltinSymbol builtin;
-    quint32 line;
-    quint32 column;
+    quint16 line;
+    quint16 column;
 
-    void init(Name *base, Type type, const QString *id, Symbol symbol, quint32 line, quint32 column);
+    void init(Name *base, Type type, const QString *id, Symbol symbol, quint16 line, quint16 column);
 
     inline bool is(Symbol s) const { return s == symbol; }
     inline bool isNot(Symbol s) const { return s != symbol; }
@@ -468,10 +468,10 @@ struct CJump: Stmt {
 struct Ret: Stmt {
     Expr *expr;
     Type type;
-    quint32 line;
-    quint32 column;
+    quint16 line;
+    quint16 column;
 
-    void init(Expr *expr, Type type, quint32 line, quint32 column)
+    void init(Expr *expr, Type type, quint16 line, quint16 column)
     {
         this->expr = expr;
         this->type = type;
@@ -538,14 +538,14 @@ struct BasicBlock {
     Expr *CONST(Type type, double value);
     Expr *STRING(const QStringRef &value);
 
-    Name *NAME(const QString &id, quint32 line, quint32 column);
-    Name *NAME(Name *base, const QString &id, quint32 line, quint32 column);
-    Name *SYMBOL(Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, Name::Storage storage, quint32 line, quint32 column);
-    Name *SYMBOL(Name *base, Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, quint32 line, quint32 column);
-    Name *SYMBOL(Name *base, Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, Name::Storage storage, quint32 line, quint32 column);
-    Name *ID_OBJECT(const QString &id, const QQmlScript::Object *object, quint32 line, quint32 column);
-    Name *ATTACH_TYPE(const QString &id, const QQmlType *attachType, Name::Storage storage, quint32 line, quint32 column);
-    Name *MODULE_OBJECT(const QString &id, const QQmlMetaObject &meta, Name::Storage storage, quint32 line, quint32 column);
+    Name *NAME(const QString &id, quint16 line, quint16 column);
+    Name *NAME(Name *base, const QString &id, quint16 line, quint16 column);
+    Name *SYMBOL(Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, Name::Storage storage, quint16 line, quint16 column);
+    Name *SYMBOL(Name *base, Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, quint16 line, quint16 column);
+    Name *SYMBOL(Name *base, Type type, const QString &id, const QQmlMetaObject &meta, QQmlPropertyData *property, Name::Storage storage, quint16 line, quint16 column);
+    Name *ID_OBJECT(const QString &id, const QQmlScript::Object *object, quint16 line, quint16 column);
+    Name *ATTACH_TYPE(const QString &id, const QQmlType *attachType, Name::Storage storage, quint16 line, quint16 column);
+    Name *MODULE_OBJECT(const QString &id, const QQmlMetaObject &meta, Name::Storage storage, quint16 line, quint16 column);
 
     Expr *UNOP(AluOp op, Expr *expr);
     Expr *BINOP(AluOp op, Expr *left, Expr *right);
@@ -556,7 +556,7 @@ struct BasicBlock {
 
     Stmt *JUMP(BasicBlock *target);
     Stmt *CJUMP(Expr *cond, BasicBlock *iftrue, BasicBlock *iffalse);
-    Stmt *RET(Expr *expr, Type type, quint32 line, quint32 column);
+    Stmt *RET(Expr *expr, Type type, quint16 line, quint16 column);
 
     void dump(QTextStream &out);
 };
diff --git a/src/qml/qml/v4/qv4irbuilder.cpp b/src/qml/qml/v4/qv4irbuilder.cpp
index 93c552173f..37d71f1941 100644
--- a/src/qml/qml/v4/qv4irbuilder.cpp
+++ b/src/qml/qml/v4/qv4irbuilder.cpp
@@ -424,8 +424,8 @@ bool QV4IRBuilder::visit(AST::ThisExpression *)
 
 bool QV4IRBuilder::visit(AST::IdentifierExpression *ast)
 {
-    const quint32 line = ast->identifierToken.startLine;
-    const quint32 column = ast->identifierToken.startColumn;
+    const quint16 line = ast->identifierToken.startLine;
+    const quint16 column = ast->identifierToken.startColumn;
 
     const QString name = ast->name.toString();
 
diff --git a/src/qml/qml/v8/qjsengine.cpp b/src/qml/qml/v8/qjsengine.cpp
index 080540eeef..2bc4ffca7c 100644
--- a/src/qml/qml/v8/qjsengine.cpp
+++ b/src/qml/qml/v8/qjsengine.cpp
@@ -61,6 +61,7 @@
 #include <qthread.h>
 #include <qmutex.h>
 #include <qwaitcondition.h>
+#include <private/qqmlglobal_p.h>
 
 #undef Q_D
 #undef Q_Q
@@ -249,7 +250,7 @@ QJSValue QJSEngine::evaluate(const QString& program, const QString& fileName, in
     Q_D(QJSEngine);
     QScriptIsolate api(d, QScriptIsolate::NotNullEngine);
     v8::HandleScope handleScope;
-    return QJSValuePrivate::get(d->evaluate(program, fileName, lineNumber));
+    return QJSValuePrivate::get(d->evaluate(program, fileName, qmlSourceCoordinate(lineNumber)));
 }
 
 /*!
diff --git a/src/qml/qml/v8/qv8bindings.cpp b/src/qml/qml/v8/qv8bindings.cpp
index 5a6abdbe22..9999ebc7fa 100644
--- a/src/qml/qml/v8/qv8bindings.cpp
+++ b/src/qml/qml/v8/qv8bindings.cpp
@@ -144,12 +144,15 @@ void QV8Bindings::Binding::update(QQmlPropertyPrivate::WriteFlags flags)
     if (QQmlData::wasDeleted(object()))
         return;
 
+    int lineNo = qmlSourceCoordinate(instruction->line);
+    int columnNo = qmlSourceCoordinate(instruction->column);
+
     QQmlTrace trace("V8 Binding Update");
     trace.addDetail("URL", parent->url());
-    trace.addDetail("Line", instruction->line);
-    trace.addDetail("Column", instruction->column);
+    trace.addDetail("Line", lineNo);
+    trace.addDetail("Column", columnNo);
 
-    QQmlBindingProfiler prof(parent->urlString(), instruction->line, instruction->column, QQmlProfilerService::V8Binding);
+    QQmlBindingProfiler prof(parent->urlString(), lineNo, columnNo, QQmlProfilerService::V8Binding);
 
     if (!updatingFlag()) {
         setUpdatingFlag(true);
@@ -179,7 +182,7 @@ void QV8Bindings::Binding::update(QQmlPropertyPrivate::WriteFlags flags)
         if (!watcher.wasDeleted() && !destroyedFlag()) {
 
             if (needsErrorLocationData)
-                delayedError()->setErrorLocation(parent->url(), instruction->line, -1);
+                delayedError()->setErrorLocation(parent->url(), instruction->line, 0);
 
             if (hasError()) {
                 if (!delayedError()->addError(ep)) ep->warning(this->error(context->engine));
@@ -202,7 +205,7 @@ QString QV8Bindings::Binding::expressionIdentifier(QQmlJavaScriptExpression *e)
 {
     Binding *This = static_cast<Binding *>(e);
     return This->parent->urlString() + QLatin1Char(':') +
-           QString::number(This->instruction->line);
+           QString::number(qmlSourceCoordinate(This->instruction->line));
 }
 
 void QV8Bindings::Binding::expressionChanged(QQmlJavaScriptExpression *e)
@@ -224,7 +227,7 @@ void QV8Bindings::Binding::destroy(QQmlAbstractBinding *_This)
 }
 
 QV8Bindings::QV8Bindings(QQmlCompiledData::V8Program *program,
-                         int line,
+                         quint16 line,
                          QQmlContextData *context)
 : program(program), bindings(0), refCount(1)
 {
diff --git a/src/qml/qml/v8/qv8bindings_p.h b/src/qml/qml/v8/qv8bindings_p.h
index c7c2a3c960..ca5c028824 100644
--- a/src/qml/qml/v8/qv8bindings_p.h
+++ b/src/qml/qml/v8/qv8bindings_p.h
@@ -72,7 +72,7 @@ class QV8Bindings : public QQmlAbstractExpression
 {
 public:
     QV8Bindings(QQmlCompiledData::V8Program *,
-                int line,
+                quint16 line,
                 QQmlContextData *context);
     virtual ~QV8Bindings();
 
diff --git a/src/qml/qml/v8/qv8engine.cpp b/src/qml/qml/v8/qv8engine.cpp
index f98464868a..d86fc6b12f 100644
--- a/src/qml/qml/v8/qv8engine.cpp
+++ b/src/qml/qml/v8/qv8engine.cpp
@@ -446,7 +446,7 @@ v8::Handle<v8::Value> QV8Engine::fromVariant(const QVariant &variant)
 // A handle scope and context must be entered
 v8::Local<v8::Script> QV8Engine::qmlModeCompile(const QString &source,
                                                 const QString &fileName,
-                                                int lineNumber)
+                                                quint16 lineNumber)
 {
     v8::Local<v8::String> v8source = m_stringWrapper.toString(source);
     v8::Local<v8::String> v8fileName = m_stringWrapper.toString(fileName);
@@ -463,7 +463,7 @@ v8::Local<v8::Script> QV8Engine::qmlModeCompile(const QString &source,
 // source can be either ascii or utf8.
 v8::Local<v8::Script> QV8Engine::qmlModeCompile(const char *source, int sourceLength,
                                                 const QString &fileName,
-                                                int lineNumber)
+                                                quint16 lineNumber)
 {
     if (sourceLength == -1)
         sourceLength = int(strlen(source));
@@ -1424,7 +1424,7 @@ qint64 QV8Engine::stopTimer(const QString &timerName, bool *wasRunning)
     return m_time.elapsed() - startedAt;
 }
 
-int QV8Engine::consoleCountHelper(const QString &file, int line, int column)
+int QV8Engine::consoleCountHelper(const QString &file, quint16 line, quint16 column)
 {
     const QString key = file + QString::number(line) + QString::number(column);
     int number = m_consoleCount.value(key, 0);
diff --git a/src/qml/qml/v8/qv8engine_impl_p.h b/src/qml/qml/v8/qv8engine_impl_p.h
index 41518bb352..9927d058b1 100644
--- a/src/qml/qml/v8/qv8engine_impl_p.h
+++ b/src/qml/qml/v8/qv8engine_impl_p.h
@@ -152,7 +152,7 @@ inline QJSValuePrivate::PropertyFlags QV8Engine::getPropertyFlags(v8::Handle<v8:
     return flags;
 }
 
-QScriptPassPointer<QJSValuePrivate> QV8Engine::evaluate(const QString& program, const QString& fileName, int lineNumber)
+QScriptPassPointer<QJSValuePrivate> QV8Engine::evaluate(const QString& program, const QString& fileName, quint16 lineNumber)
 {
     v8::TryCatch tryCatch;
     v8::ScriptOrigin scriptOrigin(QJSConverter::toString(fileName), v8::Integer::New(lineNumber - 1));
diff --git a/src/qml/qml/v8/qv8engine_p.h b/src/qml/qml/v8/qv8engine_p.h
index 1e91de91b6..7b0afafe7f 100644
--- a/src/qml/qml/v8/qv8engine_p.h
+++ b/src/qml/qml/v8/qv8engine_p.h
@@ -301,10 +301,10 @@ public:
     // Compile \a source (from \a fileName at \a lineNumber) in QML mode
     v8::Local<v8::Script> qmlModeCompile(const QString &source, 
                                          const QString &fileName = QString(), 
-                                         int lineNumber = 1);
+                                         quint16 lineNumber = 1);
     v8::Local<v8::Script> qmlModeCompile(const char *source, int sourceLength = -1,
                                          const QString &fileName = QString(),
-                                         int lineNumber = 1);
+                                         quint16 lineNumber = 1);
 
     // Return the QML global "scope" object for the \a ctxt context and \a scope object.
     inline v8::Local<v8::Object> qmlScope(QQmlContextData *ctxt, QObject *scope);
@@ -364,7 +364,7 @@ public:
     inline v8::Handle<v8::Value> makeJSValue(QJSValue::SpecialValue value);
     inline v8::Local<v8::Value> makeJSValue(const QString &value);
 
-    inline QScriptPassPointer<QJSValuePrivate> evaluate(const QString &program, const QString &fileName = QString(), int lineNumber = 1);
+    inline QScriptPassPointer<QJSValuePrivate> evaluate(const QString &program, const QString &fileName = QString(), quint16 lineNumber = 1);
     QScriptPassPointer<QJSValuePrivate> evaluate(v8::Handle<v8::Script> script, v8::TryCatch& tryCatch);
 
     QScriptPassPointer<QJSValuePrivate> newArray(uint length);
@@ -402,7 +402,7 @@ public:
     qint64 stopTimer(const QString &timerName, bool *wasRunning);
 
     // used for console.count()
-    int consoleCountHelper(const QString &file, int line, int column);
+    int consoleCountHelper(const QString &file, quint16 line, quint16 column);
 
     QObject *qtObjectFromJS(v8::Handle<v8::Value> value);
     QSet<int> visitedConversionObjects;
diff --git a/src/qml/qml/v8/qv8qobjectwrapper.cpp b/src/qml/qml/v8/qv8qobjectwrapper.cpp
index 14694a52fd..58a7520297 100644
--- a/src/qml/qml/v8/qv8qobjectwrapper.cpp
+++ b/src/qml/qml/v8/qv8qobjectwrapper.cpp
@@ -52,6 +52,7 @@
 #include <private/qscript_impl_p.h>
 #include <private/qqmlaccessors_p.h>
 #include <private/qqmlexpression_p.h>
+#include <private/qqmlglobal_p.h>
 
 #include <QtQml/qjsvalue.h>
 #include <QtCore/qjsonarray.h>
@@ -620,7 +621,7 @@ static inline void StoreProperty(QV8Engine *engine, QObject *object, QQmlPropert
             int columnNumber = frame->GetColumn();
             QString url = engine->toString(frame->GetScriptName());
 
-            newBinding = new QQmlBinding(&function, object, context, url, lineNumber, columnNumber);
+            newBinding = new QQmlBinding(&function, object, context, url, qmlSourceCoordinate(lineNumber), qmlSourceCoordinate(columnNumber));
             newBinding->setTarget(object, *property, context);
             newBinding->setEvaluateFlags(newBinding->evaluateFlags() |
                                          QQmlBinding::RequiresThisObject);
diff --git a/src/qml/qml/v8/qv8valuetypewrapper.cpp b/src/qml/qml/v8/qv8valuetypewrapper.cpp
index 91875150ec..6a0521b8be 100644
--- a/src/qml/qml/v8/qv8valuetypewrapper.cpp
+++ b/src/qml/qml/v8/qv8valuetypewrapper.cpp
@@ -395,7 +395,7 @@ v8::Handle<v8::Value> QV8ValueTypeWrapper::Setter(v8::Local<v8::String> property
             QString url = r->engine->toString(frame->GetScriptName());
 
             newBinding = new QQmlBinding(&function, reference->object, context,
-                                         url, lineNumber, columnNumber);
+                                         url, qmlSourceCoordinate(lineNumber), qmlSourceCoordinate(columnNumber));
             newBinding->setTarget(reference->object, cacheData, context);
             newBinding->setEvaluateFlags(newBinding->evaluateFlags() |
                                          QQmlBinding::RequiresThisObject);
diff --git a/tests/auto/qml/qmlmin/tst_qmlmin.cpp b/tests/auto/qml/qmlmin/tst_qmlmin.cpp
index dcdc8959d2..cafcf29a80 100644
--- a/tests/auto/qml/qmlmin/tst_qmlmin.cpp
+++ b/tests/auto/qml/qmlmin/tst_qmlmin.cpp
@@ -191,7 +191,9 @@ void tst_qmlmin::qmlMinify()
     QFETCH(QString, file);
 
     QProcess qmlminify;
-    qmlminify.start(qmlminPath, QStringList() << QLatin1String("--verify-only") << file);
+
+    // Restrict line width to 100 characters
+    qmlminify.start(qmlminPath, QStringList() << QLatin1String("--verify-only") << QLatin1String("-w100") << file);
     qmlminify.waitForFinished();
 
     QCOMPARE(qmlminify.error(), QProcess::UnknownError);
diff --git a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
index 963bec91bf..196587160b 100644
--- a/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
+++ b/tests/auto/qml/qqmlecmascript/tst_qqmlecmascript.cpp
@@ -3918,70 +3918,70 @@ void tst_qqmlecmascript::importScripts_data()
     QTest::newRow("malformed file name")
             << testFileUrl("jsimportfail/malformedFile.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedFile.js").toString() + QLatin1String(":0:1: Imported file must be a script"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedFile.js").toString() + QLatin1String(":1:9: Imported file must be a script"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("missing file qualifier")
             << testFileUrl("jsimportfail/missingFileQualifier.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/missingFileQualifier.js").toString() + QLatin1String(":0:1: File import requires a qualifier"))
+            << (QStringList() << testFileUrl("jsimportfail/missingFileQualifier.js").toString() + QLatin1String(":1:1: File import requires a qualifier"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("malformed file qualifier")
             << testFileUrl("jsimportfail/malformedFileQualifier.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedFileQualifier.js").toString() + QLatin1String(":0:1: File import requires a qualifier"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedFileQualifier.js").toString() + QLatin1String(":1:20: File import requires a qualifier"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("malformed module qualifier 2")
             << testFileUrl("jsimportfail/malformedFileQualifier.2.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedFileQualifier.2.js").toString() + QLatin1String(":0:1: Invalid import qualifier"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedFileQualifier.2.js").toString() + QLatin1String(":1:1: Invalid import qualifier"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("malformed module uri")
             << testFileUrl("jsimportfail/malformedModule.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedModule.js").toString() + QLatin1String(":0:1: Invalid module URI"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedModule.js").toString() + QLatin1String(":1:17: Invalid module URI"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("missing module version")
             << testFileUrl("jsimportfail/missingModuleVersion.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/missingModuleVersion.js").toString() + QLatin1String(":0:1: Module import requires a version"))
+            << (QStringList() << testFileUrl("jsimportfail/missingModuleVersion.js").toString() + QLatin1String(":1:17: Module import requires a version"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("malformed module version")
             << testFileUrl("jsimportfail/malformedModuleVersion.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedModuleVersion.js").toString() + QLatin1String(":0:1: Module import requires a version"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedModuleVersion.js").toString() + QLatin1String(":1:17: Module import requires a version"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("missing module qualifier")
             << testFileUrl("jsimportfail/missingModuleQualifier.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/missingModuleQualifier.js").toString() + QLatin1String(":0:1: Module import requires a qualifier"))
+            << (QStringList() << testFileUrl("jsimportfail/missingModuleQualifier.js").toString() + QLatin1String(":1:1: Module import requires a qualifier"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("malformed module qualifier")
             << testFileUrl("jsimportfail/malformedModuleQualifier.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedModuleQualifier.js").toString() + QLatin1String(":0:1: Module import requires a qualifier"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedModuleQualifier.js").toString() + QLatin1String(":1:21: Module import requires a qualifier"))
             << QStringList()
             << QVariantList();
 
     QTest::newRow("malformed module qualifier 2")
             << testFileUrl("jsimportfail/malformedModuleQualifier.2.qml")
             << QString()
-            << (QStringList() << testFileUrl("jsimportfail/malformedModuleQualifier.2.js").toString() + QLatin1String(":0:1: Invalid import qualifier"))
+            << (QStringList() << testFileUrl("jsimportfail/malformedModuleQualifier.2.js").toString() + QLatin1String(":1:1: Invalid import qualifier"))
             << QStringList()
             << QVariantList();
 }
diff --git a/tools/qmlmin/main.cpp b/tools/qmlmin/main.cpp
index 8baa131b9a..66c08186bc 100644
--- a/tools/qmlmin/main.cpp
+++ b/tools/qmlmin/main.cpp
@@ -200,19 +200,22 @@ class Minify: public QmlminLexer
     QList<int> _tokens;
     QList<QString> _tokenStrings;
     QString _minifiedCode;
+    int _maxWidth;
+    int _width;
 
 public:
-    Minify();
+    Minify(int maxWidth);
 
     QString minifiedCode() const;
 
 protected:
+    void append(const QString &s);
     bool parse(int startToken);
     void escape(const QChar &ch, QString *out);
 };
 
-Minify::Minify()
-    : _stateStack(128)
+Minify::Minify(int maxWidth)
+    : _stateStack(128), _maxWidth(maxWidth), _width(0)
 {
 }
 
@@ -221,6 +224,24 @@ QString Minify::minifiedCode() const
     return _minifiedCode;
 }
 
+void Minify::append(const QString &s)
+{
+    if (!s.isEmpty()) {
+        if (_maxWidth) {
+            // Prefer not to exceed the maximum chars per line (but don't break up segments)
+            int segmentLength = s.count();
+            if (_width && ((_width + segmentLength) > _maxWidth)) {
+                _minifiedCode.append(QLatin1Char('\n'));
+                _width = 0;
+            }
+
+            _width += segmentLength;
+        }
+
+        _minifiedCode.append(s);
+    }
+}
+
 void Minify::escape(const QChar &ch, QString *out)
 {
     out->append(QLatin1String("\\u"));
@@ -241,6 +262,7 @@ bool Minify::parse(int startToken)
     int yytoken = -1;
     int yytos = -1;
     QString yytokentext;
+    QString assembled;
 
     _minifiedCode.clear();
     _tokens.append(startToken);
@@ -250,7 +272,7 @@ bool Minify::parse(int startToken)
         // parse optional pragma directive
         if (scanDirectives(this)) {
             // append the scanned directives to the minifier code.
-            _minifiedCode += directives();
+            append(directives());
 
             _tokens.append(tokenKind());
             _tokenStrings.append(tokenText());
@@ -281,33 +303,40 @@ bool Minify::parse(int startToken)
         if (yyaction > 0) {
             if (yyaction == ACCEPT_STATE) {
                 --yytos;
+                if (!assembled.isEmpty())
+                    append(assembled);
                 return true;
             }
 
-            const QChar lastChar = _minifiedCode.isEmpty() ? QChar() : _minifiedCode.at(_minifiedCode.length() - 1);
+            const QChar lastChar = assembled.isEmpty() ? (_minifiedCode.isEmpty() ? QChar()
+                                                                                  : _minifiedCode.at(_minifiedCode.length() - 1))
+                                                       : assembled.at(assembled.length() - 1);
 
             if (yytoken == T_SEMICOLON) {
-                _minifiedCode += QLatin1Char(';');
+                assembled += QLatin1Char(';');
+
+                append(assembled);
+                assembled.clear();
 
             } else if (yytoken == T_PLUS || yytoken == T_MINUS || yytoken == T_PLUS_PLUS || yytoken == T_MINUS_MINUS) {
                 if (lastChar == QLatin1Char(spell[yytoken][0])) {
                     // don't merge unary signs, additive expressions and postfix/prefix increments.
-                    _minifiedCode += QLatin1Char(' ');
+                    assembled += QLatin1Char(' ');
                 }
 
-                _minifiedCode += QLatin1String(spell[yytoken]);
+                assembled += QLatin1String(spell[yytoken]);
 
             } else if (yytoken == T_NUMERIC_LITERAL) {
                 if (isIdentChar(lastChar))
-                    _minifiedCode += QLatin1Char(' ');
+                    assembled += QLatin1Char(' ');
 
                 if (yytokentext.startsWith('.'))
-                    _minifiedCode += QLatin1Char('0');
+                    assembled += QLatin1Char('0');
 
-                _minifiedCode += yytokentext;
+                assembled += yytokentext;
 
-                if (_minifiedCode.endsWith(QLatin1Char('.')))
-                    _minifiedCode += QLatin1Char('0');
+                if (assembled.endsWith(QLatin1Char('.')))
+                    assembled += QLatin1Char('0');
 
             } else if (yytoken == T_IDENTIFIER) {
                 QString identifier = yytokentext;
@@ -321,29 +350,29 @@ bool Minify::parse(int startToken)
                 }
 
                 if (isIdentChar(lastChar))
-                    _minifiedCode += QLatin1Char(' ');
+                    assembled += QLatin1Char(' ');
 
                 foreach (const QChar &ch, identifier) {
                     if (isIdentChar(ch))
-                        _minifiedCode += ch;
+                        assembled += ch;
                     else {
-                        escape(ch, &_minifiedCode);
+                        escape(ch, &assembled);
                     }
                 }
 
             } else if (yytoken == T_STRING_LITERAL || yytoken == T_MULTILINE_STRING_LITERAL) {
-                _minifiedCode += QLatin1Char('"');
-                _minifiedCode += quote(yytokentext);
-                _minifiedCode += QLatin1Char('"');
+                assembled += QLatin1Char('"');
+                assembled += quote(yytokentext);
+                assembled += QLatin1Char('"');
             } else {
                 if (isIdentChar(lastChar)) {
                     if (! yytokentext.isEmpty()) {
                         const QChar ch = yytokentext.at(0);
                         if (isIdentChar(ch))
-                            _minifiedCode += QLatin1Char(' ');
+                            assembled += QLatin1Char(' ');
                     }
                 }
-                _minifiedCode += yytokentext;
+                assembled += yytokentext;
             }
             yytoken = -1;
         } else if (yyaction < 0) {
@@ -356,7 +385,7 @@ bool Minify::parse(int startToken)
                 if (! scanRestOfRegExp(ruleno, &restOfRegExp))
                     break; // break the loop, it wil report a syntax error
 
-                _minifiedCode += restOfRegExp;
+                assembled += restOfRegExp;
             }
             yyaction = nt_action(_stateStack[yytos], lhs[ruleno] - TERMINAL_COUNT);
         }
@@ -503,6 +532,7 @@ static void usage(bool showHelp = false)
                   << " The options are:" << std::endl
                   << "  -o<file>                write output to file rather than stdout" << std::endl
                   << "  -v --verify-only        just run the verifier, no output" << std::endl
+                  << "  -w<width>               restrict line characters to width" << std::endl
                   << "  -h                      display this output" << std::endl;
     }
 }
@@ -517,6 +547,9 @@ int runQmlmin(int argc, char *argv[])
     QString outputFile;
     bool verifyOnly = false;
 
+    // By default ensure the output character width is less than 16-bits (pass 0 to disable)
+    int width = USHRT_MAX;
+
     int index = 1;
     while (index < args.size()) {
         const QString arg = args.at(index++);
@@ -542,6 +575,29 @@ int runQmlmin(int argc, char *argv[])
                 std::cerr << "qmlmin: argument to '-o' is missing" << std::endl;
                 return EXIT_FAILURE;
             }
+        } else if (arg == QLatin1String("-w")) {
+            if (next.isEmpty()) {
+                std::cerr << "qmlmin: argument to '-w' is missing" << std::endl;
+                return EXIT_FAILURE;
+            } else {
+                bool ok;
+                width = next.toInt(&ok);
+
+                if (!ok) {
+                    std::cerr << "qmlmin: argument to '-w' is invalid" << std::endl;
+                    return EXIT_FAILURE;
+                }
+
+                ++index; // consume the next argument
+            }
+        } else if (arg.startsWith(QLatin1String("-w"))) {
+            bool ok;
+            width = arg.mid(2).toInt(&ok);
+
+            if (!ok) {
+                std::cerr << "qmlmin: argument to '-w' is invalid" << std::endl;
+                return EXIT_FAILURE;
+            }
         } else {
             const bool isInvalidOpt = arg.startsWith(QLatin1Char('-'));
             if (! isInvalidOpt && fileName.isEmpty())
@@ -571,7 +627,7 @@ int runQmlmin(int argc, char *argv[])
     const QString code = QString::fromUtf8(file.readAll()); // QML files are UTF-8 encoded.
     file.close();
 
-    QQmlJS::Minify minify;
+    QQmlJS::Minify minify(width);
     if (! minify(fileName, code)) {
         std::cerr << "qmlmin: cannot minify '" << qPrintable(fileName) << "' (not a valid QML/JS file)" << std::endl;
         return EXIT_FAILURE;
@@ -580,7 +636,7 @@ int runQmlmin(int argc, char *argv[])
     //
     // verify the output
     //
-    QQmlJS::Minify secondMinify;
+    QQmlJS::Minify secondMinify(width);
     if (! secondMinify(fileName, minify.minifiedCode()) || secondMinify.minifiedCode() != minify.minifiedCode()) {
         std::cerr << "qmlmin: cannot minify '" << qPrintable(fileName) << "'" << std::endl;
         return EXIT_FAILURE;