* array.c (rb_ary_aref): give warning if index is a symbol.

  [ruby-list:37217]

* array.c (rb_ary_aset): raise TypeError if index is a symbol.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3553 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Tue Mar  4 17:54:30 2003  Yukihiro Matsumoto  <[email protected]>
+
+	* array.c (rb_ary_aref): give warning if index is a symbol.
+	  [ruby-list:37217]
+
+	* array.c (rb_ary_aset): raise TypeError if index is a symbol.
+
 Tue Nov 13 14:39:11 2001  WATANABE Tetsuya  <[email protected]>
 
 	* missing/strftime.c: HP-UX support.

array.c

@@ -500,6 +500,9 @@ rb_ary_aref(argc, argv, ary)
     long beg, len;
 
     if (argc == 2) {
+	if (SYMBOL_P(argv[0])) {
+	    rb_raise(rb_eTypeError, "Symbol as array index");
+	}
 	beg = NUM2LONG(argv[0]);
 	len = NUM2LONG(argv[1]);
 	if (beg < 0) {
@@ -515,6 +518,9 @@ rb_ary_aref(argc, argv, ary)
     if (FIXNUM_P(arg)) {
 	return rb_ary_entry(ary, FIX2LONG(arg));
     }
+    if (SYMBOL_P(arg)) {
+	rb_raise(rb_eTypeError, "Symbol as array index");
+    }
     /* check if idx is Range */
     switch (rb_range_beg_len(arg, &beg, &len, RARRAY(ary)->len, 0)) {
       case Qfalse:
@@ -714,6 +720,12 @@ rb_ary_aset(argc, argv, ary)
     long offset, beg, len;
 
     if (argc == 3) {
+	if (SYMBOL_P(argv[0])) {
+	    rb_raise(rb_eTypeError, "Symbol as array index");
+	}
+	if (SYMBOL_P(argv[1])) {
+	    rb_raise(rb_eTypeError, "Symbol as subarray length");
+	}
 	rb_ary_update(ary, NUM2LONG(argv[0]), NUM2LONG(argv[1]), argv[2]);
 	return argv[2];
     }
@@ -724,6 +736,9 @@ rb_ary_aset(argc, argv, ary)
 	offset = FIX2LONG(argv[0]);
 	goto fixnum;
     }
+    if (SYMBOL_P(argv[0])) {
+	rb_raise(rb_eTypeError, "Symbol as array index");
+    }
     if (rb_range_beg_len(argv[0], &beg, &len, RARRAY(ary)->len, 1)) {
 	/* check if idx is Range */
 	rb_ary_update(ary, beg, len, argv[1]);

numeric.c

@@ -943,6 +943,9 @@ rb_num2long(val)
       case T_BIGNUM:
 	return rb_big2long(val);
 
+      case T_SYMBOL:
+	rb_warning("treating Symbol as an integer");
+	/* fall through */
       default:
 	val = rb_to_int(val);
 	return NUM2LONG(val);