https://git.ruby-lang.org/ruby.git/commit/?id=d76c8cfecd

From d76c8cfecdaa2960153b5b24ccd0d61f9af60abd Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sun, 22 Dec 2019 15:18:22 +0900
Subject: RDoc of Warning.[] and .[]= [Feature #16345] [ci skip]


diff --git a/error.c b/error.c
index a70d021..6c22211 100644
--- a/error.c
+++ b/error.c
@@ -166,6 +166,23 @@ rb_warning_category_enabled_p(rb_warning_category_t category) https://github.com/ruby/ruby/blob/trunk/error.c#L166
     return !(warning_disabled_categories & (1U << category));
 }
 
+/*
+ * call-seq
+ *    Warning[category]  -> true or false
+ *
+ * Returns the flag to show the warning messages for +category+.
+ * Supported categories are:
+ *
+ * +:deprecated+ :: deprecation warnings
+ * * assignemnt of non-nil value to <code>$,</code> and <code>$;</code>
+ * * keyword arguments
+ * * proc/lambda without block
+ * etc.
+ *
+ * +:experimental+ :: experimental features
+ * * Pattern matching
+ */
+
 static VALUE
 rb_warning_s_aref(VALUE mod, VALUE category)
 {
@@ -175,6 +192,14 @@ rb_warning_s_aref(VALUE mod, VALUE category) https://github.com/ruby/ruby/blob/trunk/error.c#L192
     return Qfalse;
 }
 
+/*
+ * call-seq
+ *    Warning[category] = flag -> flag
+ *
+ * Sets the warning flags for +category+.
+ * See Warning.[] for the categories.
+ */
+
 static VALUE
 rb_warning_s_aset(VALUE mod, VALUE category, VALUE flag)
 {
-- 
cgit v0.10.2


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