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[Bug #21304] Reload length and pointer after #hash method

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The receiver can be modified during the method calls.
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Nobuyoshi Nakada 2025-05-04 21:40:33 +09:00 committed by GitHub
parent 21035c826d
commit ce8f7da49e
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GPG Key ID: B5690EEEBB952194
Notes: git 2025-05-05 07:20:56 +00:00 
Merged: https://github.com/ruby/ruby/pull/13255

Merged-By: nobu <nobu@ruby-lang.org>
1 changed files with 14 additions and 3 deletions
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17
array.c
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@ -5321,8 +5321,8 @@ rb_ary_eql(VALUE ary1, VALUE ary2)
return rb_exec_recursive_paired(recursive_eql, ary1, ary2, ary2);
}
VALUE
rb_ary_hash_values(long len, const VALUE *elements)
static VALUE
ary_hash_values(long len, const VALUE *elements, const VALUE ary)
{
long i;
st_index_t h;
@ -5333,11 +5333,21 @@ rb_ary_hash_values(long len, const VALUE *elements)
for (i=0; i<len; i++) {
n = rb_hash(elements[i]);
h = rb_hash_uint(h, NUM2LONG(n));
if (ary) {
len = RARRAY_LEN(ary);
elements = RARRAY_CONST_PTR(ary);
}
}
h = rb_hash_end(h);
return ST2FIX(h);
}
VALUE
rb_ary_hash_values(long len, const VALUE *elements)
{
return ary_hash_values(len, elements, 0);
}
/*
* call-seq:
* hash -> integer
@ -5356,7 +5366,8 @@ rb_ary_hash_values(long len, const VALUE *elements)
static VALUE
rb_ary_hash(VALUE ary)
{
return rb_ary_hash_values(RARRAY_LEN(ary), RARRAY_CONST_PTR(ary));
RBIMPL_ASSERT_OR_ASSUME(ary);
return ary_hash_values(RARRAY_LEN(ary), RARRAY_CONST_PTR(ary), ary);
}
/*