Fix array reference

SMILEBASIC/VM.d

@@ -1150,17 +1150,17 @@ class PushArrayRef : Code
         }
         if(array.type == ValueType.IntegerArray)
         {
-            vm.push(Value(&array.integerArray[index[0..dim]]));
+            vm.push(Value(array.integerArray.reference(index[0..dim])));
             return;
         }
         if(array.type == ValueType.DoubleArray)
         {
-            vm.push(Value(&array.doubleArray[index[0..dim]]));
+            vm.push(Value(array.doubleArray.reference(index[0..dim])));
             return;
         }
         if(array.type == ValueType.StringArray)
         {
-            vm.push(Value(&array.stringArray[index[0..dim]]));
+            vm.push(Value(array.stringArray.reference(index[0..dim])));
             return;
         }
         if(array.type == ValueType.String)
@@ -1170,8 +1170,8 @@ class PushArrayRef : Code
                 //TODO:syntaxError
                 throw new TypeMismatch();
             }
-            //String?
+            vm.push(Value(array.stringValue.reference(index[0..dim])));
-            throw new TypeMismatch();
+            return;
         }
         throw new TypeMismatch();
     }
@@ -1826,7 +1826,7 @@ class PopRererence : Code
             {
                 throw new TypeMismatch();
             }
-            *refv.integerReference = value.castInteger;
+            refv.integerReference = value.castInteger;
             return;
         }
         if (refv.type == ValueType.DoubleReference)
@@ -1835,7 +1835,16 @@ class PopRererence : Code
             {
                 throw new TypeMismatch();
             }
-            *refv.doubleReference = value.castDouble;
+            refv.doubleReference = value.castDouble;
+            return;
+        }
+        if (refv.type == ValueType.StringArrayReference)
+        {
+            if (!value.isString)
+            {
+                throw new TypeMismatch();
+            }
+            refv.stringArrayReference = value.castString;
             return;
         }
         if (refv.type == ValueType.StringReference)
@@ -1844,9 +1853,10 @@ class PopRererence : Code
             {
                 throw new TypeMismatch();
             }
-            *refv.stringReference = value.castString;
+            refv.stringReference = value.castString;
             return;
         }
+        throw new TypeMismatch();
     }
 }
 class IncRef : Code
@@ -1882,17 +1892,17 @@ class IncRef : Code
 
         if (refv.type == ValueType.IntegerReference && v.isNumber)
         {
-            *refv.integerReference += v.castInteger;
+            refv.integerReference += v.castInteger;
             return;
         }
         if (refv.type == ValueType.DoubleReference && v.isNumber)
         {
-            *refv.doubleReference += v.castDouble;
+            refv.doubleReference += v.castDouble;
             return;
         }
-        if (refv.type == ValueType.StringReference && v.isString)
+        if (refv.type == ValueType.StringArrayReference && v.isString)
         {
-            *refv.stringReference ~= v.castString;
+            refv.stringArrayReference ~= v.castString;
             return;
         }
         throw new TypeMismatch();
@@ -1905,87 +1915,87 @@ class IncRef : Code
 
 class SwapCode : Code
 {
-    void getPointer(ref Value v, out int* ip, out double* dp, out Array!(wchar)* sp)
-    {
-        ip = null;
-        dp = null;
-        sp = null;
-        if (v.type == ValueType.Reference)
-        {
-            if(v.reference.type == ValueType.Integer)
-            {
-                ip = &v.reference.integerValue;
-                return;
-            }
-            if(v.reference.type == ValueType.Double)
-            {
-                dp = &v.reference.doubleValue;
-                return;
-            }
-            if(v.reference.type == ValueType.String)
-            {
-                sp = &v.reference.stringValue;
-                return;
-            }
-        }
-        if (v.type == ValueType.IntegerReference)
-        {
-            ip = v.integerReference;
-            return;
-        }
-        if (v.type == ValueType.DoubleReference)
-        {
-            dp = v.doubleReference;
-            return;
-        }
-        if (v.type == ValueType.StringReference)
-        {
-            sp = v.stringReference;
-            return;
-        }
-        throw new TypeMismatch();
-    }
     override void execute(VM vm)
     {
+        import std.algorithm.mutation : swap;
         Value refitem2, refitem1;
         vm.pop(refitem2);
         vm.pop(refitem1);
-        double* dp1, dp2;
+        if (refitem1.type == ValueType.IntegerReference && refitem2.type == ValueType.IntegerReference)
-        int* ip1, ip2;
-        Array!(wchar)* sp1, sp2;
-        getPointer(refitem1, ip1, dp1, sp1);
-        getPointer(refitem2, ip2, dp2, sp2);
-        if ((sp1 && (dp2 || ip2)) || (sp2 && (dp1 || ip1)))
         {
+            refitem1.integerReference.swap(refitem2.integerReference);
+            return;
+        }
+        if (refitem1.type == ValueType.IntegerReference && refitem2.type == ValueType.DoubleReference)
+        {
+            refitem1.integerReference.swap(refitem2.doubleReference);
+            return;
+        }
+        if (refitem1.type == ValueType.DoubleReference && refitem2.type == ValueType.IntegerReference)
+        {
+            refitem1.doubleReference.swap(refitem2.integerReference);
+            return;
+        }
+        if (refitem1.type == ValueType.DoubleReference && refitem2.type == ValueType.DoubleReference)
+        {
+            refitem1.doubleReference.swap(refitem2.doubleReference);
+            return;
+        }
+        int integer;
+        double double_;
+
+        if (refitem1.type == ValueType.IntegerReference && refitem2.type == ValueType.Reference)
+        {
+            integer = refitem2.reference.castInteger;
+            refitem1.integerReference.swap(integer);
+            if (refitem2.reference.type == ValueType.Integer)
+            {
+                refitem2.reference.integerValue = integer;
+            }
+            if (refitem2.reference.type == ValueType.Double)
+            {
+                refitem2.reference.doubleValue = integer;
+            }
+            return;
+        }
+        if (refitem1.type == ValueType.DoubleReference && refitem2.type == ValueType.Reference)
+        {
+            double_ = refitem2.reference.castDouble;
+            refitem1.doubleReference.swap(double_);
+            if (refitem2.reference.type == ValueType.Integer)
+            {
+                refitem2.reference.integerValue = cast(int)double_;
+            }
+            if (refitem2.reference.type == ValueType.Double)
+            {
+                refitem2.reference.doubleValue = double_;
+            }
+            return;
+        }
+        if (refitem1.type == ValueType.Reference && refitem2.type == ValueType.Reference)
+        {
+            if (refitem1.reference.type == refitem2.reference.type)
+            {
+                swap(*refitem1.reference, *refitem2.reference);
+                return;
+            }
+            if (refitem1.reference.type == ValueType.Integer && refitem2.reference.type == ValueType.Double)
+            {
+                integer = refitem2.reference.castInteger;
+                refitem2.reference.doubleValue = refitem1.reference.castDouble;
+                refitem1.reference.integerValue = integer;
+                return;
+            }
+            if (refitem1.reference.type == ValueType.Double && refitem2.reference.type == ValueType.Integer)
+            {
+                integer = refitem2.reference.castInteger;
+                refitem2.reference.integerValue = refitem1.reference.integerValue;
+                refitem1.reference.doubleValue = integer;
+                return;
+            }
+        }
         throw new TypeMismatch();
     }
-        import std.algorithm.mutation : swap;
-        if (sp1)
-        {
-            swap(*sp1, *sp2);
-            return;
-        }
-        if (ip1 && ip2)
-        {
-            swap(*ip1, *ip2);
-            return;
-        }
-        if (dp1 && dp2)
-        {
-            swap(*dp1, *dp2);
-            return;
-        }
-        double num1 = ip1 ? *ip1 : *dp1;
-        double num2 = ip2 ? *ip2 : *dp2;
-        if (ip2)
-            *ip2 = cast(int)num1;
-        else
-            *dp2 = num1;
-        if (ip1)
-            *ip1 = cast(int)num2;
-        else
-            *dp1 = num2;
-    }
 }
 
 class PushVarRefExpression : Code

SMILEBASIC/type.d

@@ -16,6 +16,7 @@ enum ValueType : byte
     IntegerReference,
     DoubleReference,
     StringReference,
+    StringArrayReference,
 }
 struct VMAddress
 {
@@ -36,9 +37,10 @@ struct Value
         Array!(Array!wchar) stringArray;
         VMAddress internalAddress;
         Value* reference;
-        int* integerReference;
+        ArrayReference!int integerReference;
-        double* doubleReference;
+        ArrayReference!double doubleReference;
-        Array!(wchar)* stringReference;
+        ArrayReference!wchar stringReference;
+        ArrayReference!(Array!wchar) stringArrayReference;
     }
     this(int value)
     {
@@ -78,21 +80,26 @@ struct Value
         this.type = ValueType.Reference;
         reference = r;
     }
-    this(int* r)
+    this(ArrayReference!int r)
     {
         this.type = ValueType.IntegerReference;
         integerReference = r;
     }
-    this(double* r)
+    this(ArrayReference!double r)
     {
         this.type = ValueType.DoubleReference;
         doubleReference = r;
     }
-    this(Array!(wchar)* r)
+    this(ArrayReference!wchar r)
     {
         this.type = ValueType.StringReference;
         stringReference = r;
     }
+    this(ArrayReference!(Array!wchar) r)
+    {
+        this.type = ValueType.StringArrayReference;
+        stringArrayReference = r;
+    }
     void castOp(ValueType type)
     {
         switch(type)
@@ -459,5 +466,73 @@ class Array(T)
         dim[0] = array.length;
         return this;
     }
+    int calcIndex(int[] index)
+    {
+        if(dimCount != index.length) throw new SyntaxError();
+        import core.exception;
+        switch(index.length)
+        {
+            case 1:
+                return index[0];
+            default:
+                throw new RangeError();
+        }
+    }
+    ArrayReference!T reference(int[] index)
+    {
+        auto i = calcIndex(index);
+        return ArrayReference!T(this, i);
+    }
+    void insert(Array!T ary, int index)
+    {
+        if(dimCount != 1 || ary.dimCount != 1 ) throw new SyntaxError();
+        if (length == 0)
+        {
+            throw new SubscriptOutOfRange();
+        }
+        array = array[0..index] ~ ary.array ~ array[index + 1..$];
+        dim[0] = array.length;
+    }
 
 }
+struct ArrayReference(T)
+{
+    Array!T reference;
+    int index;
+    T opAssign(T v)
+    {
+        return reference.array[index] = v;
+    }
+    static if (is(T == wchar))
+    {
+        void opAssign(Array!T ary)
+        {
+            reference.insert(ary, index);
+        }
+    }
+    T opOpAssign(string op)(T v)
+    {
+        mixin("return reference.array[index]" ~ op ~ "=v;");
+    }
+    T opBinary(string op)(T v)
+    {
+        mixin("return reference.array[index]" ~ op ~ "v;");
+    }
+    T2 opCast(T2)()
+    {
+        return cast(T2)reference.array[index];
+    }
+    void swap(T2)(ArrayReference!T2 t2)
+    {
+        T temp = reference.array[index];
+        reference.array[index] = cast(T)t2;
+        t2 = cast(T2)temp;
+    }
+    void swap(T2)(ref T2 t2)
+    if (!is(T2 T3 == ArrayReference!T3))
+    {
+        T temp = reference.array[index];
+        reference.array[index] = cast(T)t2;
+        t2 = cast(T2)temp;
+    }
+}