X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Freflect.h;h=56ead82ceface5a35fc72af0a2f2b60ae874efc0;hb=3ffa465364a36477b81b1b644ae8d19ee3bac8c2;hp=162ed9c0b8bcf4ddb01daf17724e4308138decd0;hpb=8967d38bc578f1653c1dde01dce49a8f7b0c912e;p=libs%2Fgl.git

diff --git a/source/glsl/reflect.h b/source/glsl/reflect.h
index 162ed9c0..56ead82c 100644
--- a/source/glsl/reflect.h
+++ b/source/glsl/reflect.h
@@ -7,6 +7,34 @@ namespace Msp {
 namespace GL {
 namespace SL {
 
+/** Compares two types for equality.  Struct types are compared recursively. */
+class TypeComparer: private NodeVisitor
+{
+private:
+	Node *first;
+	Node *second;
+	unsigned first_tag;
+	bool r_result;
+
+	static unsigned next_tag;
+
+public:
+	TypeComparer();
+
+	bool apply(TypeDeclaration &t1, TypeDeclaration &t2) { compare(t1, t2); return r_result; }
+
+private:
+	void compare(Node &, Node &);
+	template<typename T>
+	T *multi_visit(T &);
+	virtual void visit(Literal &);
+	virtual void visit(VariableReference &);
+	virtual void visit(BasicTypeDeclaration &);
+	virtual void visit(ImageTypeDeclaration &);
+	virtual void visit(StructDeclaration &);
+	virtual void visit(VariableDeclaration &);
+};
+
 /** Determines the number of interface locations required by a variable. */
 class LocationCounter: private NodeVisitor
 {