class Syskit::AmbiguousImplicitServiceSelection

Exception raised during the merge steps, if a merge is possible (i.e. a task provides the required service), but ambiguous

Attributes

compositions[R]

merged_task[R]

task[R]

Public Class Methods

new(task, merged_task, required_service, candidates) click to toggle source

Calls superclass method Syskit::AmbiguousServiceSelection.new

# File lib/syskit/exceptions.rb, line 257
def initialize(task, merged_task, required_service, candidates)
    super(task.model, required_service, candidates)

    @task = task
    @merged_task = merged_task
    @compositions = merged_task.parent_objects(Roby::TaskStructure::Dependency).
        map { |parent| [parent, parent[merged_task, Roby::TaskStructure::Dependency].dup] }
end

Public Instance Methods

pretty_print(pp) click to toggle source

Calls superclass method Syskit::AmbiguousServiceSelection#pretty_print

# File lib/syskit/exceptions.rb, line 266
def pretty_print(pp)
    pp.text "error while trying to use #{task} instead of #{merged_task}"
    pp.breakable
    pp.text "#{merged_task} is part of the following compositions:"
    pp.nest(2) do
        pp.seplist(compositions) do |parent|
            parent_task, dependency_options = *parent
            pp.breakable
            pp.text "child #{dependency_options[:roles].to_a.join(", ")} of #{parent_task}"
        end
    end
    pp.breakable
    super
end