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authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/lib/rake/ext/core.rb
Fresh start
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diff --git a/jni/ruby/lib/rake/ext/core.rb b/jni/ruby/lib/rake/ext/core.rb
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+class Module
+ # Check for an existing method in the current class before extending. If
+ # the method already exists, then a warning is printed and the extension is
+ # not added. Otherwise the block is yielded and any definitions in the
+ # block will take effect.
+ #
+ # Usage:
+ #
+ # class String
+ # rake_extension("xyz") do
+ # def xyz
+ # ...
+ # end
+ # end
+ # end
+ #
+ def rake_extension(method) # :nodoc:
+ if method_defined?(method)
+ $stderr.puts "WARNING: Possible conflict with Rake extension: " +
+ "#{self}##{method} already exists"
+ else
+ yield
+ end
+ end
+end