Add an intermediate node type for statements

[libs/gl.git] / source / programsyntax.cpp

diff --git a/source/programsyntax.cpp b/source/programsyntax.cpp
index 185453952a006fdf591b9bf64b6306d37efe0989..46f51c2cb699f26c10b57a59c17a152d26a61425 100644 (file)
--- a/source/programsyntax.cpp
+++ b/source/programsyntax.cpp
@@ -103,6 +103,12 @@ void Import::visit(NodeVisitor &visitor)
 }
 
 
+void Precision::visit(NodeVisitor &visitor)
+{
+       visitor.visit(*this);
+}
+
+
 void Layout::visit(NodeVisitor &visitor)
 {
        visitor.visit(*this);
@@ -207,7 +213,7 @@ void NodeVisitor::visit(Assignment &assign)
 
 void TraversingVisitor::visit(Block &block)
 {
-       for(list<RefPtr<Node> >::iterator i=block.body.begin(); i!=block.body.end(); ++i)
+       for(list<RefPtr<Statement> >::iterator i=block.body.begin(); i!=block.body.end(); ++i)
                (*i)->visit(*this);
 }
 
@@ -284,7 +290,8 @@ void TraversingVisitor::visit(Conditional &cond)
 
 void TraversingVisitor::visit(Iteration &iter)
 {
-       iter.init_statement->visit(*this);
+       if(iter.init_statement)
+               iter.init_statement->visit(*this);
        if(iter.condition)
                iter.condition->visit(*this);
        if(iter.loop_expression)