Module: Tap::Support

Defined in:
lib/tap/task.rb,
lib/tap/test/utils.rb,
lib/tap/support/gems.rb,
lib/tap/support/join.rb,
lib/tap/support/node.rb,
lib/tap/support/audit.rb,
lib/tap/support/joins.rb,
lib/tap/support/intern.rb,
lib/tap/support/parser.rb,
lib/tap/support/schema.rb,
lib/tap/support/minimap.rb,
lib/tap/support/constant.rb,
lib/tap/support/manifest.rb,
lib/tap/support/versions.rb,
lib/tap/support/gems/rack.rb,
lib/tap/support/gems/rake.rb,
lib/tap/support/templater.rb,
lib/tap/support/aggregator.rb,
lib/tap/support/combinator.rb,
lib/tap/support/dependency.rb,
lib/tap/support/executable.rb,
lib/tap/support/joins/fork.rb,
lib/tap/support/string_ext.rb,
lib/tap/support/joins/merge.rb,
lib/tap/support/shell_utils.rb,
lib/tap/support/dependencies.rb,
lib/tap/support/joins/switch.rb,
lib/tap/support/joins/sequence.rb,
lib/tap/support/executable_queue.rb,
lib/tap/support/joins/sync_merge.rb,
lib/tap/support/constant_manifest.rb

Defined Under Namespace

Modules: Dependency, Executable, Gems, Joins, Minimap, ShellUtils, StringExt, Versions Classes: Aggregator, Audit, Combinator, Constant, ConstantManifest, Dependencies, ExecutableQueue, Join, Manifest, Node, Parser, ReverseJoin, Schema, Templater

Constant Summary collapse

INTERN_MODULES =

An array of already-declared intern modules, keyed by method_name.

{}
Intern =

An Intern module for :process.

Support.Intern(:process)

Class Method Summary collapse

Class Method Details

.Intern(method_name) ⇒ Object

Generates an Intern module for the specified method_name. An Intern module:

  • adds an accessor for <method_name>_block

  • overrides <method_name> to call the block

  • ensures initialize_batch_obj extends the batch object with the same Intern module



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# File 'lib/tap/support/intern.rb', line 11

def self.Intern(method_name)
  mod = INTERN_MODULES[method_name.to_sym]
  return mod unless mod == nil
  
  mod = INTERN_MODULES[method_name.to_sym] = Module.new
  mod.module_eval %Q{
  attr_accessor :#{method_name}_block

  def #{method_name}(*inputs)
    raise "no #{method_name} block set" unless #{method_name}_block
    inputs.unshift(self)
  
    arity = #{method_name}_block.arity
    n = inputs.length
    unless n == arity || (arity < 0 && (-1-n) <= arity) 
      raise ArgumentError.new("wrong number of arguments (\#{n} for \#{arity})")
    end
  
    #{method_name}_block.call(*inputs)
  end
  
  def initialize_batch_obj(*args)
    super(*args).extend Tap::Support::Intern(:#{method_name})
  end
  }
  mod
end