Method: Roby::Queries::TaskMatcher#with_arguments

Defined in:

lib/roby/queries/task_matcher.rb

#with_arguments(arguments) ⇒ Object

Filters on the arguments that are declared in the model

Will match if the task arguments for which there is a value in arguments are set to that very value. Unlike #with_model_arguments, all values set in arguments are considered.

See also #with_model_arguments

Example:

class TaskModel < Roby::Task
  argument :a
  argument :b
end
task = TaskModel.new(a: 10, b: 20)

# Matches on :a, :b is ignored altogether
TaskMatcher.new.
    with_arguments(a: 10) === task # => true
# Looks for both :a and :b
TaskMatcher.new.
    with_arguments(a: 10, b: 30) === task # => false
# Looks for both :a and :c, even though :c is not declared in TaskModel
TaskMatcher.new.
    with_arguments(a: 10, c: 30) === task # => false

# File 'lib/roby/queries/task_matcher.rb', line 135

def with_arguments(arguments)
    @arguments ||= {}
    @indexed_query = false
    self.arguments.merge!(arguments) do |k, old, new|
        if old != new
            raise ArgumentError,
                  "a constraint has already been set on the #{k} argument"
        end
        old
    end
    self
end