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-rw-r--r--Library/Homebrew/extend/predicable.rb9
1 files changed, 9 insertions, 0 deletions
diff --git a/Library/Homebrew/extend/predicable.rb b/Library/Homebrew/extend/predicable.rb
new file mode 100644
index 000000000..d02fbb89b
--- /dev/null
+++ b/Library/Homebrew/extend/predicable.rb
@@ -0,0 +1,9 @@
+module Predicable
+ def attr_predicate(*attrs)
+ attrs.each do |attr|
+ define_method attr do
+ instance_variable_get("@#{attr.to_s.sub(/\?$/, "")}") == true
+ end
+ end
+ end
+end