added using symbol table in stack

1 files changed, 16 insertions, 1 deletions

diff --git a/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java b/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java
index 435e48d..992e873 100644
--- a/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java
+++ b/code/simpleSableCCCalulator/sableCCCalculator/SymbolTable.java
@@ -6,7 +6,8 @@ public class SymbolTable {
 
     public interface SymbolTableIndex {}
 
-    public abstract class Name implements SymbolTableIndex {
+    public abstract class Name implements SymbolTableIndex {        
+        // can be used for functions too hopefully one day...
         protected String name;
 
         String getName() {
@@ -42,7 +43,21 @@ public class SymbolTable {
         return index;
     }
 
+    public void updateVariable(Type newItem, SymbolTableIndex index) {
+        theSymbolTable.replace(index, newItem);
+    }
+
     public Type get(SymbolTableIndex index) {
         return theSymbolTable.get(index);
     }
+
+    public static void main(String[] args) {
+        SymbolTable symbolTable = new SymbolTable();
+        symbolTable.addConstant(new Int(3));
+        SymbolTableIndex i_var = symbolTable.addVariable(new Int(0), "i");
+        System.out.println(symbolTable.get(i_var));
+        symbolTable.updateVariable(symbolTable.get(i_var).add(new Int(1)), i_var);
+        System.out.println(symbolTable.get(i_var));
+    }
 }
+ 
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