Add console.time / console.timeEnd API

Implement console.time() / console.timeEnd() as also provided by FireBug
/ Safari.

Task-number: QTBUG-22347
Change-Id: I94fcadbb0c54fdf60dc2559e3ae63d613e29630b
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/declarative/qml/v8/qdeclarativebuiltinfunctions.cpp b/src/declarative/qml/v8/qdeclarativebuiltinfunctions.cpp
index 96c51da0ef..1ced8687ff 100644
--- a/src/declarative/qml/v8/qdeclarativebuiltinfunctions.cpp
+++ b/src/declarative/qml/v8/qdeclarativebuiltinfunctions.cpp
@@ -92,6 +92,28 @@ v8::Handle<v8::Value> print(const v8::Arguments &args)
     return v8::Undefined();
 }
 
+v8::Handle<v8::Value> consoleTime(const v8::Arguments &args)
+{
+    if (args.Length() != 1)
+        V8THROW_ERROR("console.time(): Invalid arguments");
+    QString name = V8ENGINE()->toString(args[0]);
+    V8ENGINE()->startTimer(name);
+    return v8::Undefined();
+}
+
+v8::Handle<v8::Value> consoleTimeEnd(const v8::Arguments &args)
+{
+    if (args.Length() != 1)
+        V8THROW_ERROR("console.time(): Invalid arguments");
+    QString name = V8ENGINE()->toString(args[0]);
+    bool wasRunning;
+    qint64 elapsed = V8ENGINE()->stopTimer(name, &wasRunning);
+    if (wasRunning) {
+        qDebug("%s: %llims", qPrintable(name), elapsed);
+    }
+    return v8::Undefined();
+}
+
 v8::Handle<v8::Value> stringArg(const v8::Arguments &args)
 {
     QString value = V8ENGINE()->toString(args.This()->ToString());