56f37e49b6
`each_with_object` is a Ruby 1.9 method, here re-implemented in core_ext.rb in case it's missing (for older Ruby versions). Using `returning` is bad in combination with Ruby on Rails because each usage of the method will emit a Rails deprecation warning. This might be considered an Active Support bug, but it's better to avoid using `returning` altogether and use `tap` from Ruby 1.8.7, also re-implemented here in case it's missing. Since existing usages or `returning` were better suited for `each_with_object` than `tap`, they were rewritten using the former instead.
51 lines
1.1 KiB
Ruby
51 lines
1.1 KiB
Ruby
# encoding: UTF-8
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# --
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# Copyright (C) 2008-2010 10gen Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ++
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#:nodoc:
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class Object
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#:nodoc:
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def tap
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yield self
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self
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end unless respond_to? :tap
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end
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#:nodoc:
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module Enumerable
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#:nodoc:
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def each_with_object(memo)
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each { |element| yield(element, memo) }
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memo
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end unless [].respond_to?(:each_with_object)
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end
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#:nodoc:
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class Hash
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#:nodoc:
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def assert_valid_keys(*valid_keys)
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unknown_keys = keys - [valid_keys].flatten
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raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(", ")}") unless unknown_keys.empty?
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end
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end
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