#ifndef AST_NODE_H
#define AST_NODE_H

#include <bu/list.h>

class AstNode
{
friend Bu::Formatter &operator<<( Bu::Formatter &f, const AstNode &n );
public:
	enum Type
	{
		tLeaf				= 0x01000000,
		tNot				= 0x01000001,
		tComp				= 0x01000002,
		tCompGt				= 0x01000003,
		tCompLt				= 0x01000004,
		tCompGtEq			= 0x01000005,
		tCompLtEq			= 0x01000006,
		tStore				= 0x01000007,
		tAnd				= 0x01000008,
		tOr					= 0x01000009,

		tLeafLiteral		= 0x02000000,
		tVarName			= 0x02000001,
		tLiteral			= 0x02000002,
		tFuncName			= 0x02000003,

		tBranch				= 0x04000000,
		tScope				= 0x04000001,
		tIf					= 0x04000002,
		tForEach			= 0x04000003,
		tWhile				= 0x04000004,

		tTypeMask			= 0x07000000,
	};
	
	AstNode( Type eType );
	virtual ~AstNode();

	Type getType() const { return eType; }

private:
	Type eType;
};

Bu::Formatter &operator<<( Bu::Formatter &f, AstNode::Type t );
Bu::Formatter &operator<<( Bu::Formatter &f, const AstNode &n );

#endif