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Ruby 1.8 support had gone

instance_variable_names remains for internal use, but it's not that useful for the users anymore
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1 parent ffaad63 commit 257348405a9c9bfb9ea656bd12a2d0db5cb857ee @amatsuda amatsuda committed Jan 4, 2013
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  1. +0 −18 guides/source/
18 guides/source/
@@ -422,24 +422,6 @@ NOTE: Defined in `active_support/core_ext/object/with_options.rb`.
Active Support provides several methods to ease access to instance variables.
-#### `instance_variable_names`
-Ruby 1.8 and 1.9 have a method called `instance_variables` that returns the names of the defined instance variables. But they behave differently, in 1.8 it returns strings whereas in 1.9 it returns symbols. Active Support defines `instance_variable_names` as a portable way to obtain them as strings:
-class C
- def initialize(x, y)
- @x, @y = x, y
- end
-, 1).instance_variable_names # => ["@y", "@x"]
-WARNING: The order in which the names are returned is unspecified, and it indeed depends on the version of the interpreter.
-NOTE: Defined in `active_support/core_ext/object/instance_variables.rb`.
#### `instance_values`
The method `instance_values` returns a hash that maps instance variable names without "@" to their

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