typedef struct BooleanOrder BooleanOrder;
typedef struct BooleanVar BooleanVar;
typedef struct BooleanLogic BooleanLogic;
-typedef struct BooleanComp BooleanComp;
typedef struct BooleanPredicate BooleanPredicate;
+struct ASTNode;
+typedef struct ASTNode ASTNode;
+
struct Boolean;
typedef struct Boolean Boolean;
struct Predicate;
typedef struct Predicate Predicate;
+struct PredicateTable;
+typedef struct PredicateTable PredicateTable;
+
+struct PredicateOperator;
+typedef struct PredicateOperator PredicateOperator;
+
struct Table;
typedef struct Table Table;