Check for deprecated uses of top level (i.e. in Object) uses of Rake class
names. If someone tries to reference the constant name, display a warning
and return the proper object. Using the —classic-namespace command
line option will define these constants in Object and avoid this handler.
2461: def const_missing(const_name)
2462: case const_name
2463: when :Task
2464: Rake.application.const_warning(const_name)
2465: Rake::Task
2466: when :FileTask
2467: Rake.application.const_warning(const_name)
2468: Rake::FileTask
2469: when :FileCreationTask
2470: Rake.application.const_warning(const_name)
2471: Rake::FileCreationTask
2472: when :RakeApp
2473: Rake.application.const_warning(const_name)
2474: Rake::Application
2475: else
2476: rake_original_const_missing(const_name)
2477: end
2478: end
Check for an existing method in the current class before extending. IF the
method already exists, then a warning is printed and the extension is not
added. Otherwise the block is yielded and any definitions in the block will
take effect.
Usage:
class String
rake_extension("xyz") do
def xyz
...
end
end
end
62: def rake_extension(method)
63: if instance_methods.include?(method.to_s) || instance_methods.include?(method.to_sym)
64: $stderr.puts "WARNING: Possible conflict with Rake extension: #{self}##{method} already exists"
65: else
66: yield
67: end
68: end