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Remove copy_instance_variables_from from guides

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commit 7a2be37592a13aaf557619336a54da9092950b18 1 parent c208385
Santiago Pastorino spastorino authored
33 railties/guides/source/active_support_core_extensions.textile
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@@ -395,39 +395,6 @@ C.new(0, 1).instance_values # => {"x" => 0, "y" => 1}
NOTE: Defined in +active_support/core_ext/object/instance_variables.rb+.
-h5. +copy_instance_variables_from(object, exclude = [])+
-
-Copies the instance variables of +object+ into +self+.
-
-Instance variable names in the +exclude+ array are ignored. If +object+
-responds to +protected_instance_variables+ the ones returned are
-also ignored. For example, Rails controllers implement that method.
-
-In both arrays strings and symbols are understood, and they have to include
-the at sign.
-
-<ruby>
-class C
- def initialize(x, y, z)
- @x, @y, @z = x, y, z
- end
-
- def protected_instance_variables
- %w(@z)
- end
-end
-
-a = C.new(0, 1, 2)
-b = C.new(3, 4, 5)
-
-a.copy_instance_variables_from(b, [:@y])
-# a is now: @x = 3, @y = 1, @z = 2
-</ruby>
-
-In the example +object+ and +self+ are of the same type, but they don't need to.
-
-NOTE: Defined in +active_support/core_ext/object/instance_variables.rb+.
-
h4. Silencing Warnings, Streams, and Exceptions
The methods +silence_warnings+ and +enable_warnings+ change the value of +$VERBOSE+ accordingly for the duration of their block, and reset it afterwards:
12 railties/guides/source/api_documentation_guidelines.textile
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@@ -115,18 +115,6 @@ Use fixed-width fonts for:
* method parameters
* file names
-<ruby>
-# Copies the instance variables of +object+ into +self+.
-#
-# Instance variable names in the +exclude+ array are ignored. If +object+
-# responds to <tt>protected_instance_variables</tt> the ones returned are
-# also ignored. For example, Rails controllers implement that method.
-# ...
-def copy_instance_variables_from(object, exclude = [])
- ...
-end
-</ruby>
-
WARNING: Using a pair of +&#43;...&#43;+ for fixed-width font only works with *words*; that is: anything matching <tt>\A\w&#43;\z</tt>. For anything else use +&lt;tt&gt;...&lt;/tt&gt;+, notably symbols, setters, inline snippets, etc:
h4. Regular Font
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