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Diffstat (limited to 'lib/arel/visitors/visitor.rb')
-rw-r--r-- | lib/arel/visitors/visitor.rb | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/arel/visitors/visitor.rb b/lib/arel/visitors/visitor.rb new file mode 100644 index 0000000000..510d50399b --- /dev/null +++ b/lib/arel/visitors/visitor.rb @@ -0,0 +1,19 @@ +module Arel + module Visitors + class Visitor + def accept object + visit object + end + + private + + DISPATCH = Hash.new do |hash, klass| + hash[klass] = "visit_#{klass.name.gsub('::', '_')}" + end + + def visit object + send DISPATCH[object.class], object + end + end + end +end |