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.
2014: def const_missing(const_name)
2015: case const_name
2016: when :Task
2017: Rake.application.const_warning(const_name)
2018: Rake::Task
2019: when :FileTask
2020: Rake.application.const_warning(const_name)
2021: Rake::FileTask
2022: when :FileCreationTask
2023: Rake.application.const_warning(const_name)
2024: Rake::FileCreationTask
2025: when :RakeApp
2026: Rake.application.const_warning(const_name)
2027: Rake::Application
2028: else
2029: rake_original_const_missing(const_name)
2030: end
2031: 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)
64: $stderr.puts "WARNING: Possible conflict with Rake extension: #{self}##{method} already exists"
65: else
66: yield
67: end
68: end