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* enum.c (enum_zip): optimize if all arguments are arrays.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15751 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 2008-03-11 16:20:44 +00:00
parent 8f14847366
commit 2b1b74a099
2 changed files with 44 additions and 3 deletions
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2
ChangeLog
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@ -5,6 +5,8 @@ Tue Mar 11 23:38:39 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
* array.c (rb_ary_permutation): ditto.
* enum.c (enum_zip): optimize if all arguments are arrays.
Tue Mar 11 19:48:09 2008 Nobuyoshi Nakada <nobu@ruby-lang.org>
* numeric.c (fix_coerce): try conversion before type check.

45
enum.c
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@ -1346,6 +1346,36 @@ enum_each_with_index(int argc, VALUE *argv, VALUE obj)
}
static VALUE
zip_ary(VALUE val, NODE *memo, int argc, VALUE *argv)
{
volatile VALUE result = memo->u1.value;
volatile VALUE args = memo->u2.value;
int n = memo->u3.cnt++;
volatile VALUE tmp;
int i;
tmp = rb_ary_new2(RARRAY_LEN(args) + 1);
rb_ary_store(tmp, 0, enum_values_pack(argc, argv));
for (i=0; i<RARRAY_LEN(args); i++) {
VALUE e = RARRAY_PTR(args)[i];
if (RARRAY_LEN(e) < n) {
rb_ary_push(tmp, Qnil);
}
else {
rb_ary_push(tmp, RARRAY_PTR(e)[n]);
}
}
if (NIL_P(result)) {
rb_yield(tmp);
}
else {
rb_ary_push(result, tmp);
}
return Qnil;
}
static VALUE
call_next(VALUE *v)
{
@ -1423,16 +1453,25 @@ enum_zip(int argc, VALUE *argv, VALUE obj)
ID conv;
NODE *memo;
VALUE result = Qnil;
int allary = Qtrue;
conv = rb_intern("to_enum");
for (i=0; i<argc; i++) {
argv[i] = rb_funcall(argv[i], conv, 1, ID2SYM(id_each));
if (TYPE(argv[i]) != T_ARRAY) {
allary = Qfalse;
break;
}
}
if (!allary) {
conv = rb_intern("to_enum");
for (i=0; i<argc; i++) {
argv[i] = rb_funcall(argv[i], conv, 1, ID2SYM(id_each));
}
}
if (!rb_block_given_p()) {
result = rb_ary_new();
}
memo = rb_node_newnode(NODE_MEMO, result, rb_ary_new4(argc, argv), 0);
rb_block_call(obj, id_each, 0, 0, zip_i, (VALUE)memo);
rb_block_call(obj, id_each, 0, 0, allary ? zip_ary : zip_i, (VALUE)memo);
return result;
}