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-rw-r--r--NEWS6
-rw-r--r--eval_error.c27
-rw-r--r--test/ruby/test_backtrace.rb32
3 files changed, 63 insertions, 2 deletions
diff --git a/NEWS b/NEWS
index 89e2ebb648..6f17e227d7 100644
--- a/NEWS
+++ b/NEWS
@@ -36,6 +36,12 @@ sufficient information, see the ChangeLog file or Redmine
user = users.find {|user| cond(user) }
+* Print exception backtrace and error message in reverse order when the
+ exception is not caught and STDOUT is unchanged and a tty. [Feature #8661]
+
+* Print `cause` of the exception if the exception is not caught and printed
+ its backtraces and error message [Feature #8257]
+
=== Core classes updates (outstanding ones only)
[Array]
diff --git a/eval_error.c b/eval_error.c
index 8f98fcc319..6ce2a8f9a2 100644
--- a/eval_error.c
+++ b/eval_error.c
@@ -220,6 +220,29 @@ print_backtrace(const VALUE eclass, const VALUE errat, const VALUE str, int reve
}
}
+VALUE rb_get_message(VALUE exc);
+
+static void
+show_cause(VALUE errinfo, VALUE str, VALUE highlight, VALUE reverse)
+{
+ VALUE cause = rb_attr_get(errinfo, id_cause);
+ if (!NIL_P(cause)) {
+ volatile VALUE eclass = CLASS_OF(cause);
+ VALUE errat = rb_get_backtrace(cause);
+ VALUE emesg = rb_get_message(cause);
+ if (reverse) {
+ show_cause(cause, str, highlight, reverse);
+ print_errinfo(eclass, errat, emesg, str, highlight!=0);
+ print_backtrace(eclass, errat, str, FALSE);
+ }
+ else {
+ print_backtrace(eclass, errat, str, TRUE);
+ print_errinfo(eclass, errat, emesg, str, highlight!=0);
+ show_cause(cause, str, highlight, reverse);
+ }
+ }
+}
+
void
rb_error_write(VALUE errinfo, VALUE emesg, VALUE errat, VALUE str, VALUE highlight, VALUE reverse)
{
@@ -254,17 +277,17 @@ rb_error_write(VALUE errinfo, VALUE emesg, VALUE errat, VALUE str, VALUE highlig
len = p - (msg = buff);
}
write_warn2(str, msg, len);
+ show_cause(errinfo, str, highlight, reverse);
print_backtrace(eclass, errat, str, TRUE);
print_errinfo(eclass, errat, emesg, str, highlight!=0);
}
else {
print_errinfo(eclass, errat, emesg, str, highlight!=0);
print_backtrace(eclass, errat, str, FALSE);
+ show_cause(errinfo, str, highlight, reverse);
}
}
-VALUE rb_get_message(VALUE exc);
-
void
rb_ec_error_print(rb_execution_context_t * volatile ec, volatile VALUE errinfo)
{
diff --git a/test/ruby/test_backtrace.rb b/test/ruby/test_backtrace.rb
index d38628cdb2..69d053b672 100644
--- a/test/ruby/test_backtrace.rb
+++ b/test/ruby/test_backtrace.rb
@@ -297,4 +297,36 @@ class TestBacktrace < Test::Unit::TestCase
end
assert_not_match(/\Acore#/, e.backtrace_locations[0].base_label)
end
+
+ def test_notty_backtrace
+ err = ["-:1:in `<main>': unhandled exception"]
+ assert_in_out_err([], "raise", [], err)
+
+ err = ["-:2:in `foo': foo! (RuntimeError)",
+ "\tfrom -:4:in `<main>'"]
+ assert_in_out_err([], <<-"end;", [], err)
+ def foo
+ raise "foo!"
+ end
+ foo
+ end;
+
+ err = ["-:7:in `rescue in bar': bar! (RuntimeError)",
+ "\tfrom -:4:in `bar'",
+ "\tfrom -:9:in `<main>'",
+ "\t2: from -:9:in `<main>'",
+ "\t1: from -:5:in `bar'",
+ "-:2:in `foo': foo! (RuntimeError)"]
+ assert_in_out_err([], <<-"end;", [], err)
+ def foo
+ raise "foo!"
+ end
+ def bar
+ foo
+ rescue
+ raise "bar!"
+ end
+ bar
+ end;
+ end
end