Abstract expression and binding APIs

By splitting the interface through which the system interacts with bindings
away from a specific implementation, we can introduce highly specialized
implementations for specific optimizations.

This commit also includes a sample optimization for object properties being
assigned directly from a local id.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/declarative/qml/qmlinstruction_p.h b/src/declarative/qml/qmlinstruction_p.h
index e6b8de6..16bc8cf 100644
--- a/src/declarative/qml/qmlinstruction_p.h
+++ b/src/declarative/qml/qmlinstruction_p.h
@@ -125,6 +125,7 @@ public:
         AssignCustomType,          /* assignCustomType */
 
         StoreCompiledBinding,     /* assignBinding */
+        StoreIdOptBinding,        /* assignIdOptBinding */
         StoreValueSource,         /* assignValueSource */
 
         BeginObject,              /* begin */
@@ -189,6 +190,10 @@ public:
         } assignBinding;
         struct {
             int property;
+            int id;
+        } assignIdOptBinding;
+        struct {
+            int property;
         } fetch;
         struct {
             int property;