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error.c: limit depth

* error.c (rb_warn_m): limit backtrace depth to reduce objects to
  be created but not used.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61527 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2017-12-31 13:15:52 +00:00
parent 487efc80b0
commit c5f4c44f82

View file

@ -342,12 +342,14 @@ rb_warn_m(int argc, VALUE *argv, VALUE exc)
uplevel = Qnil;
}
else if (!NIL_P(uplevel)) {
VALUE args[2];
long lev = NUM2LONG(uplevel);
if (lev < 0) {
rb_raise(rb_eArgError, "negative level (%ld)", lev);
}
uplevel = LONG2NUM(lev + 1);
uplevel = rb_vm_thread_backtrace_locations(1, &uplevel, GET_THREAD()->self);
args[0] = LONG2NUM(lev + 1);
args[1] = INT2FIX(1);
uplevel = rb_vm_thread_backtrace_locations(2, args, GET_THREAD()->self);
if (!NIL_P(uplevel)) {
uplevel = rb_ary_entry(uplevel, 0);
}
@ -360,7 +362,7 @@ rb_warn_m(int argc, VALUE *argv, VALUE exc)
else {
VALUE path;
path = rb_funcall(uplevel, rb_intern("path"), 0);
str = rb_sprintf("%s:%li: warning: ",
str = rb_sprintf("%s:%ld: warning: ",
rb_string_value_ptr(&path),
NUM2LONG(rb_funcall(uplevel, rb_intern("lineno"), 0)));
}