Initial support for resolving meta-property access for the scope and context objects at QML compile time

This avoids having to do a string lookup for ids and in the import cache at
run-time, before we can do a string hash lookup in the property cache. Instead
we resolve final properties in the context and scope object at compile time and
look them up at run-time using their index instead. The dependencies to these
properties are also tracked separately and recorded in the compiled data.

This is merely the initial patch. There's a lot left to do, such as having
specialized getter and setters for specific property types. Setters are missing
altogether right now and will fall back to name lookup.

Change-Id: If3cb4e7c9454ef4850a615f0935b311c9395b165
Reviewed-by: Lars Knoll <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/qml/compiler/qv4isel_masm_p.h b/src/qml/compiler/qv4isel_masm_p.h
index 8178866656..46144f22d1 100644
--- a/src/qml/compiler/qv4isel_masm_p.h
+++ b/src/qml/compiler/qv4isel_masm_p.h
@@ -1470,6 +1470,8 @@ protected:
     virtual void convertType(V4IR::Temp *source, V4IR::Temp *target);
     virtual void loadThisObject(V4IR::Temp *temp);
     virtual void loadIdObject(int id, V4IR::Temp *temp);
+    virtual void loadQmlContextObject(V4IR::Temp *temp);
+    virtual void loadQmlScopeObject(V4IR::Temp *temp);
     virtual void loadConst(V4IR::Const *sourceConst, V4IR::Temp *targetTemp);
     virtual void loadString(const QString &str, V4IR::Temp *targetTemp);
     virtual void loadRegexp(V4IR::RegExp *sourceRegexp, V4IR::Temp *targetTemp);
@@ -1478,6 +1480,7 @@ protected:
     virtual void initClosure(V4IR::Closure *closure, V4IR::Temp *target);
     virtual void getProperty(V4IR::Expr *base, const QString &name, V4IR::Temp *target);
     virtual void setProperty(V4IR::Expr *source, V4IR::Expr *targetBase, const QString &targetName);
+    virtual void getQObjectProperty(V4IR::Expr *base, int propertyIndex, V4IR::Temp *target);
     virtual void getElement(V4IR::Expr *base, V4IR::Expr *index, V4IR::Temp *target);
     virtual void setElement(V4IR::Expr *source, V4IR::Expr *targetBase, V4IR::Expr *targetIndex);
     virtual void copyValue(V4IR::Temp *sourceTemp, V4IR::Temp *targetTemp);