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Feature #12944 » 0001-Change-Kernel-warn-to-call-Warning.warn.patch

jeremyevans0 (Jeremy Evans), 11/15/2016 08:13 PM

View differences:

error.c
* call-seq:
* warn(msg, ...) -> nil
*
* Displays each of the given messages followed by a record separator on
* STDERR unless warnings have been disabled (for example with the
* <code>-W0</code> flag).
*
* If warnings have been disabled (for example with the
* <code>-W0</code> flag), does nothing. Otherwise,
* converts each of the messages to strings, appends a newline
* character to the string if the string does not end in a newline,
* and calls <code>Warning.warn</code> with the string.
*
* warn("warning 1", "warning 2")
*
* <em>produces:</em>
......
rb_warn_m(int argc, VALUE *argv, VALUE exc)
{
if (!NIL_P(ruby_verbose) && argc > 0) {
rb_io_puts(argc, argv, rb_stderr);
int i;
VALUE str;
long len;
const char *ptr;
for(i = 0; i < argc; i++) {
str = rb_obj_as_string(argv[i]);
len = RSTRING_LEN(str);
ptr = RSTRING_PTR(str);
if (len == 0 || ptr[len-1] != '\n') {
str = rb_str_cat(str, "\n", 1);
}
rb_write_warning_str(str);
}
}
return Qnil;
}
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