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Module: Gem::Resolver::Molinillo::Delegates::SpecificationProvider

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Included In:
::Gem::Resolver::Molinillo::Resolver::Resolution
Defined in: lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb

Overview

Instance Method Summary

Instance Method Details

#allow_missing?(dependency) ⇒ Boolean

Returns whether this dependency, which has no possible matching specifications, can safely be ignored.

Parameters:

  • dependency (Object)

Returns:

  • (Boolean) —

    whether this dependency can safely be skipped.

[ GitHub ] 

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 57



def allow_missing?(dependency)
  with_no_such_dependency_error_handling do
    specification_provider.allow_missing?(dependency)
  end
end


  








  

    #dependencies_for(specification)  ⇒ Array<Object> 
  



  

    
  

    Note:
    


This method should be 'pure', i.e. the return value should depend only on the specification parameter.



  




Returns the dependencies of specification.


  





  
Parameters:


    
  
  • 
    specification
    (Object)
  
    • 



Returns:


    
  
  • 
    (Array<Object>)
—    
    

    the dependencies that are required by the given specification.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 15



def dependencies_for(specification)
  with_no_such_dependency_error_handling do
    specification_provider.dependencies_for(specification)
  end
end


  








  

    #name_for(dependency)  ⇒ String 
  



  

    
  

    Note:
    


This method should be 'pure', i.e. the return value should depend only on the dependency parameter.



  




Returns the name for the given dependency.


  





  
Parameters:


    
  
  • 
    dependency
    (Object)
  
    • 



Returns:


    
  
  • 
    (String)
—    
    

    the name for the given dependency.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 29



def name_for(dependency)
  with_no_such_dependency_error_handling do
    specification_provider.name_for(dependency)
  end
end


  








  

    #name_for_explicit_dependency_source  ⇒ String 
  



  

    
  





  
Returns:


    
  
  • 
    (String)
—    
    

    the name of the source of explicit dependencies, i.e. those passed to Resolver#resolve directly.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 36



def name_for_explicit_dependency_source
  with_no_such_dependency_error_handling do
    specification_provider.name_for_explicit_dependency_source
  end
end


  








  

    #name_for_locking_dependency_source  ⇒ String 
  



  

    
  





  
Returns:


    
  
  • 
    (String)
—    
    

    the name of the source of 'locked' dependencies, i.e. those passed to Resolver#resolve directly as the base
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 43



def name_for_locking_dependency_source
  with_no_such_dependency_error_handling do
    specification_provider.name_for_locking_dependency_source
  end
end


  








  

    #requirement_satisfied_by?(requirement, activated, spec)  ⇒ Boolean 
  



  

    

Determines whether the given requirement is satisfied by the given spec, in the context of the current activated dependency graph.


  





  
Parameters:


    
  
  • 
    requirement
    (Object)
  
    • 
  
  • 
    activated
    (DependencyGraph)
—    
    

    the current dependency graph in the resolution process.
    

    
  
    • 
  
  • 
    spec
    (Object)
  
    • 



Returns:


    
  
  • 
    (Boolean)
—    
    

    whether requirement is satisfied by spec in the context of the current activated dependency graph.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 22



def requirement_satisfied_by?(requirement, activated, spec)
  with_no_such_dependency_error_handling do
    specification_provider.requirement_satisfied_by?(requirement, activated, spec)
  end
end


  








  

    #search_for(dependency)  ⇒ Array<Object> 
  



  

    
  

    Note:
    


This method should be 'pure', i.e. the return value should depend only on the dependency parameter.



  




Search for the specifications that match the given dependency. The specifications in the returned array will be considered in reverse order, so the latest version ought to be last.


  





  
Parameters:


    
  
  • 
    dependency
    (Object)
  
    • 



Returns:


    
  
  • 
    (Array<Object>)
—    
    

    the specifications that satisfy the given dependency.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 8



def search_for(dependency)
  with_no_such_dependency_error_handling do
    specification_provider.search_for(dependency)
  end
end


  








  

    #sort_dependencies(dependencies, activated, conflicts)  ⇒ Array<Object> 
  



  

    

Sort dependencies so that the ones that are easiest to resolve are first. Easiest to resolve is (usually) defined by:


  1. 

    Is this dependency already activated?
    

  2. 

    How relaxed are the requirements?
    

  3. 

    Are there any conflicts for this dependency?
    

  4. 

    How many possibilities are there to satisfy this dependency?
    



  





  
Parameters:


    
  
  • 
    dependencies
    (Array<Object>)
  
    • 
  
  • 
    activated
    (DependencyGraph)
—    
    

    the current dependency graph in the resolution process.
    

    
  
    • 
  
  • 
    conflicts
    ({String => Array<Conflict>})
  
    • 



Returns:


    
  
  • 
    (Array<Object>)
—    
    

    a sorted copy of dependencies.
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 50



def sort_dependencies(dependencies, activated, conflicts)
  with_no_such_dependency_error_handling do
    specification_provider.sort_dependencies(dependencies, activated, conflicts)
  end
end


  








  

    #with_no_such_dependency_error_handling { ... }  (private)
  



  

    

Ensures any raised ::Gem::Resolver::Molinillo::NoSuchDependencyError has its NoSuchDependencyError#required_by set.


  





  
Yields:


    
  
  • 
    
  
    • 





  [ GitHub ]


  

  


# File 'lib/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb', line 68



def with_no_such_dependency_error_handling
  yield
rescue NoSuchDependencyError => error
  if state
    vertex = activated.vertex_named(name_for(error.dependency))
    error.required_by += vertex.incoming_edges.map { |e| e.origin.name }
    error.required_by << name_for_explicit_dependency_source unless vertex.explicit_requirements.empty?
  end
  raise
end