+:x doesn't raise exception

Ruby Development
1

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$ ./ruby -ve ‘p(+:x)’
ruby 1.8.6 (2007-07-19 patchlevel 5000) [i686-linux]
:x
$ ./ruby -ve ‘p(+//)’
ruby 1.8.6 (2007-07-19 patchlevel 5000) [i686-linux]
//

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2

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At Thu, 19 Jul 2007 22:13:04 +0900,
Yusuke ENDOH wrote in [ruby-dev:31264]:

Symbol#+@ e$B$de(B Regexp#+@ e$B$,$J$$$N$K0J2<$,Nc30$K$J$i$J$$$N$Oe(B
e$B;EMM$G$7$g$&$+!#e(B

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Index: parse.y

— parse.y (revision 12819)
+++ parse.y (working copy)
@@ -420,4 +420,9 @@ extern int rb_local_defined(ID);
extern int rb_parse_in_eval(void);

+#define numeric_p(val) (\

  • FIXNUM_P(val) || \
  • (!SPECIAL_CONST_P(val) && \
  • (BUILTIN_TYPE(val) == T_FLOAT || BUILTIN_TYPE(val) == T_BIGNUM)))

#else
#define remove_begin(node) (node)
@@ -2007,5 +2012,6 @@ arg : lhs ‘=’ arg
{
/%%%/

  •  if ($2 && nd_type($2) == NODE_LIT) {

  •  $$ = 0;

  •  if ($2 && nd_type($2) == NODE_LIT && numeric_p($2->nd_lit)) {
     $$ = $2;
 }

@@ -2020,5 +2026,10 @@ arg : lhs ‘=’ arg
{
/%%%/

  •  $$ = call_op($2, tUMINUS, 0, 0);

  •  if ($2 && nd_type($2) == NODE_LIT && numeric_p($2->nd_lit)) {

  •      $$ = negate_lit($2);

  •  }

  •  else {

  •      $$ = call_op($2, tUMINUS, 0, 0);

  •  }
   /*%
 $$ = dispatch2(unary, ripper_intern("-@"), $2);

@@ -7901,8 +7912,8 @@ negate_lit(NODE *node)
switch (TYPE(node->nd_lit)) {
case T_FIXNUM:

  • node->nd_lit = LONG2FIX(-FIX2LONG(node->nd_lit));
  • node->nd_lit = LONG2NUM(-FIX2LONG(node->nd_lit));
    break;
    case T_BIGNUM:
  • node->nd_lit = rb_funcall(node->nd_lit,tUMINUS,0,0);
  • RBIGNUM(node->nd_lit)->sign = !RBIGNUM(node->nd_lit)->sign;
    break;
    case T_FLOAT:
3

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$ ./ruby -ve ‘class Fixnum; def +@; nil; end; end; p(+1)’
ruby 1.8.6 (2007-07-19 patchlevel 5000) [i686-linux]
1

$ ./ruby -ve ‘class Fixnum; def +@; nil; end; end; p(+(1))’
ruby 1.8.6 (2007-07-19 patchlevel 5000) [i686-linux]
nil

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4

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At Mon, 23 Jul 2007 18:01:14 +0900,
Yusuke ENDOH wrote in [ruby-dev:31282]:

e$B%j%F%i%k$NC19!\$OL5;k$7$F$k$s$G$9$,!"%(%i!<$N$[$&$,$$$$$G$7$ge(B e$B$&$+!#$D$$$G$KC19!]$b2DG=$J$iJQ49$9$k$h$&$K$7$F$_$^$7$?$,!#e(B

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$ ./ruby -ve ‘class Fixnum; def +@; nil; end; end; p(+1)’
ruby 1.8.6 (2007-07-19 patchlevel 5000) [i686-linux]
1

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1)
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$ ./ruby -ve ‘class Fixnum; def +@; nil; end; end; p(+(1))’
ruby 1.8.6 (2007-07-19 patchlevel 5000) [i686-linux]
nil

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