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* enum.c (ary_inject_op): Extracted from enum_inject.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54148 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2016-03-17 11:55:58 +00:00
parent fa153d7435
commit 85473c481e
2 changed files with 71 additions and 57 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Thu Mar 17 20:55:21 2016 Tanaka Akira <akr@fsij.org>
* enum.c (ary_inject_op): Extracted from enum_inject.
Thu Mar 17 18:39:04 2016 Tanaka Akira <akr@fsij.org>
* enum.c (enum_inject): Implement the specialized code for sum of

124
enum.c
View file

@ -628,6 +628,72 @@ inject_op_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, p))
return Qnil;
}
static VALUE
ary_inject_op(VALUE ary, VALUE init, VALUE op)
{
ID id;
VALUE v;
long i;
if (RARRAY_LEN(ary) == 0)
return init == Qundef ? Qnil : init;
if (init == Qundef) {
v = RARRAY_AREF(ary, 0);
i = 1;
}
else {
v = init;
i = 0;
}
id = SYM2ID(op);
if (id == idPLUS) {
if (FIXNUM_P(v) &&
rb_method_basic_definition_p(rb_cFixnum, idPLUS)) {
long n = FIX2LONG(v);
while (i < RARRAY_LEN(ary)) {
VALUE e = RARRAY_AREF(ary, i);
if (!FIXNUM_P(e)) break;
n += FIX2LONG(e); /* should not overflow long type */
i++;
if (!FIXABLE(n)) break;
}
v = LONG2NUM(n);
}
if (i < RARRAY_LEN(ary) && (FIXNUM_P(v) || RB_TYPE_P(v, T_BIGNUM)) &&
rb_method_basic_definition_p(rb_cFixnum, idPLUS) &&
rb_method_basic_definition_p(rb_cBignum, idPLUS)) {
long n = 0;
while (i < RARRAY_LEN(ary)) {
VALUE e = RARRAY_AREF(ary, i);
if (FIXNUM_P(e)) {
n += FIX2LONG(e); /* should not overflow long type */
i++;
if (!FIXABLE(n)) {
v = rb_big_plus(LONG2NUM(n), v);
n = 0;
}
}
else if (RB_TYPE_P(e, T_BIGNUM)) {
v = rb_big_plus(e, v);
i++;
}
else {
break;
}
}
if (n != 0) {
v = rb_fix_plus(LONG2FIX(n), v);
}
}
}
for (; i<RARRAY_LEN(ary); i++) {
v = rb_funcall(v, id, 1, RARRAY_AREF(ary, i));
}
return v;
}
/*
* call-seq:
* enum.inject(initial, sym) -> obj
@ -706,63 +772,7 @@ enum_inject(int argc, VALUE *argv, VALUE obj)
SYMBOL_P(op) &&
RB_TYPE_P(obj, T_ARRAY) &&
rb_method_basic_definition_p(CLASS_OF(obj), id_each)) {
VALUE v;
long i;
if (RARRAY_LEN(obj) == 0)
return init == Qundef ? Qnil : init;
if (init == Qundef) {
v = RARRAY_AREF(obj, 0);
i = 1;
}
else {
v = init;
i = 0;
}
id = SYM2ID(op);
if (id == idPLUS) {
if (FIXNUM_P(v) &&
rb_method_basic_definition_p(rb_cFixnum, idPLUS)) {
long n = FIX2LONG(v);
while (i < RARRAY_LEN(obj)) {
VALUE e = RARRAY_AREF(obj, i);
if (!FIXNUM_P(e)) break;
n += FIX2LONG(e); /* should not overflow long type */
i++;
if (!FIXABLE(n)) break;
}
v = LONG2NUM(n);
}
if (i < RARRAY_LEN(obj) && (FIXNUM_P(v) || RB_TYPE_P(v, T_BIGNUM)) &&
rb_method_basic_definition_p(rb_cFixnum, idPLUS) &&
rb_method_basic_definition_p(rb_cBignum, idPLUS)) {
long n = 0;
while (i < RARRAY_LEN(obj)) {
VALUE e = RARRAY_AREF(obj, i);
if (FIXNUM_P(e)) {
n += FIX2LONG(e); /* should not overflow long type */
i++;
if (!FIXABLE(n)) {
v = rb_big_plus(LONG2NUM(n), v);
n = 0;
}
}
else if (RB_TYPE_P(e, T_BIGNUM)) {
v = rb_big_plus(e, v);
i++;
}
else {
break;
}
}
if (n != 0) {
v = rb_fix_plus(LONG2FIX(n), v);
}
}
}
for (; i<RARRAY_LEN(obj); i++) {
v = rb_funcall(v, id, 1, RARRAY_AREF(obj, i));
}
return v;
return ary_inject_op(obj, init, op);
}
memo = MEMO_NEW(init, Qnil, op);