| Class | Module |
| In: |
lib/rake.rb
|
| Parent: | Object |
Rake extensions to Module.
| const_missing | -> | rake_original_const_missing |
| Rename the original handler to make it available. | ||
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.
# File lib/rake.rb, line 2451
2451: def const_missing(const_name)
2452: case const_name
2453: when :Task
2454: Rake.application.const_warning(const_name)
2455: Rake::Task
2456: when :FileTask
2457: Rake.application.const_warning(const_name)
2458: Rake::FileTask
2459: when :FileCreationTask
2460: Rake.application.const_warning(const_name)
2461: Rake::FileCreationTask
2462: when :RakeApp
2463: Rake.application.const_warning(const_name)
2464: Rake::Application
2465: else
2466: rake_original_const_missing(const_name)
2467: end
2468: 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
# File lib/rake.rb, line 62
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