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Versions: 10
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Contents
# Just a way to keep warnings from being flagged in rename of constants during tests
module Kernel
def silence_warnings
orig_verbosity = $VERBOSE
$VERBOSE = nil
yield
$VERBOSE = orig_verbosity
end
end
module SilentConstants
def parse(constant)
source, _, constant_name = constant.to_s.rpartition('::')
[Object.const_get(source.to_sym), constant_name.to_sym]
end
# Examples
# with_constants "Something" => "nothing" do
# end
#
# with_constants "Something::Foo" => "something else" do
# end
#
def with_constants(constants, &block)
saved_constants = {}
constants.each do |constant, val|
source_object, const_name = parse(constant)
saved_constants[constant] = source_object.const_get(const_name)
Kernel::silence_warnings { source_object.const_set(const_name, val) }
end
block.call
ensure
constants.each do |constant, val|
source_object, const_name = parse(constant)
Kernel::silence_warnings { source_object.const_set(const_name, saved_constants[constant]) }
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems