Introduce a JS stack frame that corresponds to the C++ stack frame

The frame currently contains the function itself and the current
context.

Change-Id: I7d3402627fbc90e860a7bdc277585f365f5b4cb5
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/qml/jsruntime/qv4enginebase_p.h b/src/qml/jsruntime/qv4enginebase_p.h
index cc049fb296..a713e8eab4 100644
--- a/src/qml/jsruntime/qv4enginebase_p.h
+++ b/src/qml/jsruntime/qv4enginebase_p.h
@@ -63,9 +63,17 @@ namespace QV4 {
 #pragma pack(push, 1)
 #endif
 struct EngineBase {
+    struct JSStackFrame {
+        // callData is directly before this
+        QV4::Value jsFunction;
+        QV4::Value context;
+        // registers follow
+    };
+
     struct StackFrame {
         StackFrame *parent;
         Function *v4Function;
+        JSStackFrame *jsFrame;
         int line = -1;
         int column = -1;