+/**
+Converts the output depth range to match expectations of the target API.
+*/
+class DepthRangeConverter: private TraversingVisitor
+{
+private:
+ bool assignment_target = false;
+ bool r_gl_pervertex = false;
+ bool r_gl_position = false;
+ bool r_position_z_assigned = false;
+
+public:
+ void apply(Stage &, const Features &);
+
+private:
+ virtual void visit(VariableReference &);
+ virtual void visit(MemberAccess &);
+ virtual void visit(Swizzle &);
+ virtual void visit(Assignment &);
+ virtual void visit(FunctionDeclaration &);
+};
+