Feature #12944 » 0001-Change-Kernel-warn-to-call-Warning.warn.patch
error.c | ||
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VALUE rb_iseqw_local_variables(VALUE iseqval);
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VALUE rb_iseqw_new(const rb_iseq_t *);
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int str_end_with_asciichar(VALUE str, int c);
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VALUE rb_eEAGAIN;
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VALUE rb_eEWOULDBLOCK;
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... | ... | |
* call-seq:
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* warn(msg, ...) -> nil
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*
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* Displays each of the given messages followed by a record separator on
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* STDERR unless warnings have been disabled (for example with the
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* <code>-W0</code> flag).
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*
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* If warnings have been disabled (for example with the
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* <code>-W0</code> flag), does nothing. Otherwise,
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* joins all strings with a newline, makes sure
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* the resulting string ends with a newline, and calls
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* <code>Warning.warn</code> with the string.
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*
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* warn("warning 1", "warning 2")
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*
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* <em>produces:</em>
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... | ... | |
rb_warn_m(int argc, VALUE *argv, VALUE exc)
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{
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if (!NIL_P(ruby_verbose) && argc > 0) {
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rb_io_puts(argc, argv, rb_stderr);
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VALUE str;
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str = rb_ary_new_from_values(argc, argv);
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str = rb_ary_join(str, rb_str_new("\n", 1));
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if (RSTRING_LEN(str) == 0 || !str_end_with_asciichar(str, '\n')) {
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rb_str_cat(str, "\n", 1);
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}
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rb_write_warning_str(str);
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}
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return Qnil;
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}
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io.c | ||
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}
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static int
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int
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str_end_with_asciichar(VALUE str, int c)
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{
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long len = RSTRING_LEN(str);
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