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ObjectSpace::WeakMap#inspect: check if living object [Bug #18392]

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This commit is contained in:
Nobuyoshi Nakada 2021-12-07 19:33:03 +09:00
parent ec878dac90
commit d6c5a30cfd
Notes: git 2021-12-07 21:56:10 +09:00
2 changed files with 32 additions and 6 deletions
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29
gc.c
View file

@ -12117,10 +12117,26 @@ struct wmap_iter_arg {
VALUE value;
};
static VALUE
wmap_inspect_append(rb_objspace_t *objspace, VALUE str, VALUE obj)
{
if (SPECIAL_CONST_P(obj)) {
return rb_str_append(str, rb_inspect(obj));
}
else if (wmap_live_p(objspace, obj)) {
return rb_str_append(str, rb_any_to_s(obj));
}
else {
return rb_str_catf(str, "#<collected:%p>", (void*)obj);
}
}
static int
wmap_inspect_i(st_data_t key, st_data_t val, st_data_t arg)
{
VALUE str = (VALUE)arg;
struct wmap_iter_arg *argp = (struct wmap_iter_arg *)arg;
rb_objspace_t *objspace = argp->objspace;
VALUE str = argp->value;
VALUE k = (VALUE)key, v = (VALUE)val;
if (RSTRING_PTR(str)[0] == '#') {
@ -12130,11 +12146,9 @@ wmap_inspect_i(st_data_t key, st_data_t val, st_data_t arg)
rb_str_cat2(str, ": ");
RSTRING_PTR(str)[0] = '#';
}
k = SPECIAL_CONST_P(k) ? rb_inspect(k) : rb_any_to_s(k);
rb_str_append(str, k);
wmap_inspect_append(objspace, str, k);
rb_str_cat2(str, " => ");
v = SPECIAL_CONST_P(v) ? rb_inspect(v) : rb_any_to_s(v);
rb_str_append(str, v);
wmap_inspect_append(objspace, str, v);
return ST_CONTINUE;
}
@ -12145,11 +12159,14 @@ wmap_inspect(VALUE self)
VALUE str;
VALUE c = rb_class_name(CLASS_OF(self));
struct weakmap *w;
struct wmap_iter_arg args;
TypedData_Get_Struct(self, struct weakmap, &weakmap_type, w);
str = rb_sprintf("-<%"PRIsVALUE":%p", c, (void *)self);
if (w->wmap2obj) {
st_foreach(w->wmap2obj, wmap_inspect_i, str);
args.objspace = &rb_objspace;
args.value = str;
st_foreach(w->wmap2obj, wmap_inspect_i, (st_data_t)&args);
}
RSTRING_PTR(str)[0] = '#';
rb_str_cat2(str, ">");

9
test/ruby/test_weakmap.rb
View file

@ -73,6 +73,15 @@ class TestWeakMap < Test::Unit::TestCase
@wm.inspect)
end
def test_inspect_garbage
1000.times do |i|
@wm[i] = Object.new
@wm.inspect
end
assert_match(/\A\#<#{@wm.class.name}:[^:]++:(?:\s\d+\s=>\s\#<(?:Object|collected):[^:<>]*+>(?:,|>\z))+/,
@wm.inspect)
end
def test_each
m = __callee__[/test_(.*)/, 1]
x1 = Object.new