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diff ast/Exp.d @ 72:628cb46ab13b new_gen

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First update on the way to Arrays! :) Lexer and ast/Exp now have the types needed. All that needs to be updated now is the Parser. I suggest two options: 1) Making the Id a class that we can make a ArrayId and PointerId for at some point. 2) Use a struct as now, but adding some bools / ints to give a more abstract description of the type 2) is messy and 1) is slower... :/
author Anders Johnsen <skabet@gmail.com>
date Thu, 01 May 2008 23:08:41 +0200
parents 381975d76baf
children 13eea2c4e60d ad956143dcdc
line wrap: on
line diff
--- a/ast/Exp.d	Thu May 01 19:51:22 2008 +0200
+++ b/ast/Exp.d	Thu May 01 23:08:41 2008 +0200
@@ -17,8 +17,9 @@
     Negate,
     IntegerLit,
     MemberReference,
-    ArrayLookup,
+    ArrayReference,
     Identifier,
+    ArrayIdentifier,
     AssignExp,
     CallExp,
     CastExp,
@@ -280,11 +281,11 @@
     private DType myType;
 }
 
-class ArrayLookup : Exp
+class ArrayReference : Exp
 {
     this(Exp target, IntegerLit pos)
     {
-        super(ExpType.ArrayLookup);
+        super(ExpType.ArrayReference);
         this.target = target;
         this.pos = pos;
     }
@@ -327,6 +328,27 @@
     Exp exp;
 }
 
+class ArrayIdentifier : Identifier
+{
+    this(Identifier arrayOf)
+    {
+        super(ExpType.ArrayIdentifier);
+        this.arrayOf = arrayOf;
+    }
+
+    override DType type()
+    {
+        if (myType !is null)
+            return myType;
+        myType = new DArray(arrayOf.type);
+        return myType;
+    }
+
+    Identifier arrayOf;
+
+    private DType myType;
+}
+
 class Identifier : Exp
 {
     this(Token t)
@@ -336,6 +358,11 @@
         name = t.get;
     }
 
+    protected this(ExpType t)
+    {
+        super(t);
+    }
+
     override DType type()
     {
         if (myType !is null)