Handle expression replacement through TraversingVisitor

[libs/gl.git] / source / glsl / visitor.cpp

diff --git a/source/glsl/visitor.cpp b/source/glsl/visitor.cpp
index dfe2d8d46523a00d83b024f1e13dc261db36703d..8c8056c56352c99a56ca3a7e5b21e298026e5fbe 100644 (file)
--- a/source/glsl/visitor.cpp
+++ b/source/glsl/visitor.cpp
@@ -16,47 +16,52 @@ void TraversingVisitor::visit(Block &block)
                (*i)->visit(*this);
 }
 
+void TraversingVisitor::visit(RefPtr<Expression> &expr)
+{
+       expr->visit(*this);
+}
+
 void TraversingVisitor::visit(ParenthesizedExpression &parexpr)
 {
-       parexpr.expression->visit(*this);
+       visit(parexpr.expression);
 }
 
 void TraversingVisitor::visit(MemberAccess &memacc)
 {
-       memacc.left->visit(*this);
+       visit(memacc.left);
 }
 
 void TraversingVisitor::visit(Swizzle &swizzle)
 {
-       swizzle.left->visit(*this);
+       visit(swizzle.left);
 }
 
 void TraversingVisitor::visit(UnaryExpression &unary)
 {
-       unary.expression->visit(*this);
+       visit(unary.expression);
 }
 
 void TraversingVisitor::visit(BinaryExpression &binary)
 {
-       binary.left->visit(*this);
-       binary.right->visit(*this);
+       visit(binary.left);
+       visit(binary.right);
 }
 
 void TraversingVisitor::visit(Assignment &assign)
 {
-       assign.left->visit(*this);
-       assign.right->visit(*this);
+       visit(assign.left);
+       visit(assign.right);
 }
 
 void TraversingVisitor::visit(FunctionCall &call)
 {
        for(NodeArray<Expression>::iterator i=call.arguments.begin(); i!=call.arguments.end(); ++i)
-               (*i)->visit(*this);
+               visit(*i);
 }
 
 void TraversingVisitor::visit(ExpressionStatement &expr)
 {
-       expr.expression->visit(*this);
+       visit(expr.expression);
 }
 
 void TraversingVisitor::visit(InterfaceLayout &layout)
@@ -74,9 +79,9 @@ void TraversingVisitor::visit(VariableDeclaration &var)
        if(var.layout)
                var.layout->visit(*this);
        if(var.init_expression)
-               var.init_expression->visit(*this);
+               visit(var.init_expression);
        if(var.array_size)
-               var.array_size->visit(*this);
+               visit(var.array_size);
 }
 
 void TraversingVisitor::visit(InterfaceBlock &iface)
@@ -96,7 +101,7 @@ void TraversingVisitor::visit(FunctionDeclaration &func)
 
 void TraversingVisitor::visit(Conditional &cond)
 {
-       cond.condition->visit(*this);
+       visit(cond.condition);
        cond.body.visit(*this);
        cond.else_body.visit(*this);
 }
@@ -108,22 +113,22 @@ void TraversingVisitor::visit(Iteration &iter)
        if(iter.init_statement)
                iter.init_statement->visit(*this);
        if(iter.condition)
-               iter.condition->visit(*this);
+               visit(iter.condition);
        iter.body.visit(*this);
        if(iter.loop_expression)
-               iter.loop_expression->visit(*this);
+               visit(iter.loop_expression);
 }
 
 void TraversingVisitor::visit(Passthrough &pass)
 {
        if(pass.subscript)
-               pass.subscript->visit(*this);
+               visit(pass.subscript);
 }
 
 void TraversingVisitor::visit(Return &ret)
 {
        if(ret.expression)
-               ret.expression->visit(*this);
+               visit(ret.expression);
 }