Use union in Boolean to save space

[satune.git] / src / AST / boolean.h

diff --git a/src/AST/boolean.h b/src/AST/boolean.h
index 030e1d9dd72205a993f5c5a9d54218435014ac4b..87d7a49da28aec59607f52f9d2332d344811bf01 100644 (file)
--- a/src/AST/boolean.h
+++ b/src/AST/boolean.h
@@ -3,16 +3,41 @@
 #include "classlist.h"
 #include "mymemory.h"
 #include "ops.h"
-struct  Boolean {
-       VarType vtype;
-       enum BooleanType btype;
+
+struct BooleanOrder {
        Order* order;
        uint64_t first;
        uint64_t second;
 };
 
-Boolean* allocBoolean(VarType t);
-Boolean* allocBooleanOrder(Order* order,uint64_t first, uint64_t second);
+struct BooleanVar {
+       VarType vtype;
+};
+
+struct BooleanLogic {
+       LogicOp op;
+       Boolean * left;
+       Boolean * right;
+};
+
+struct BooleanComp {
+       CompOp op;
+       Boolean * left;
+       Boolean * right;
+};
+
+struct Boolean {
+       BooleanType btype;
+       union {
+               BooleanOrder order;
+               BooleanVar var;
+               BooleanLogic logic;
+               BooleanComp comp;
+       };
+};
+
+Boolean * allocBoolean(VarType t);
+Boolean * allocBooleanOrder(Order * order, uint64_t first, uint64_t second);
 void deleteBoolean(Boolean * this);
 
 #endif