Class SolverUtils

Helper functions for ISolver implementations.

Inheritance

Object

SolverUtils

Namespace: ZeroInstall.Services.Solvers

Assembly: ZeroInstall.Services.dll

Syntax

public static class SolverUtils : Object

Methods

AddCommand(ImplementationSelection, Requirements, Implementation)

Adds a Command specified in an Implementation to a ImplementationSelection.

Declaration

public static Command AddCommand(this ImplementationSelection selection, Requirements requirements, Implementation from)

Parameters

Type	Name	Description
ImplementationSelection	selection	The ImplementationSelection to add the Command to.
Requirements	requirements	The requirements specifying which Command to extract.
Implementation	from	The Implementation to get the Command from.

Returns

Type	Description
Command	The Command that was added to selection; null if none.

AddDependencies(IDependencyContainer, Requirements, IDependencyContainer)

Transfers Dependencys from one IDependencyContainer to another.

Declaration

public static void AddDependencies(this IDependencyContainer target, Requirements requirements, IDependencyContainer from)

Parameters

Type	Name	Description
IDependencyContainer	target	The IDependencyContainer to add the Dependencys to.
Requirements	requirements	The requirements which restrict which Dependencys are applicable.
IDependencyContainer	from	The IDependencyContainer to get the Dependencys to.

AddRestriction(Requirements, Restriction)

Adds the version restriction from source to the requirements.

Declaration

public static void AddRestriction(this Requirements requirements, Restriction source)

Parameters

Type	Name	Description
Requirements	requirements
Restriction	source

AddRestrictions(Requirements, Requirements)

Adds the version restrictions from source to the requirements.

Declaration

public static void AddRestrictions(this Requirements requirements, Requirements source)

Parameters

Type	Name	Description
Requirements	requirements
Requirements	source

BucketizeImportance(IEnumerable<SolverDemand>)

Separates solver demands into buckets by importance.

Declaration

public static (List<SolverDemand>, List<SolverDemand>) BucketizeImportance(this IEnumerable<SolverDemand> demands)

Parameters

Type	Name	Description
IEnumerable<SolverDemand>	demands

Returns

Type	Description
(, )<List<SolverDemand>, List<SolverDemand>>

PurgeRestrictions(Selections)

Removes all Restrictions from Selections.

Declaration

public static void PurgeRestrictions(this Selections selections)

Parameters

Type	Name	Description
Selections	selections

ToSelection(SelectionCandidate, Requirements, IReadOnlyList<SelectionCandidate>)

Turns a SelectionCandidate into a ImplementationSelection.

Declaration

public static ImplementationSelection ToSelection(this SelectionCandidate candidate, Requirements requirements, IReadOnlyList<SelectionCandidate> allCandidates)

Parameters

Type	Name	Description
SelectionCandidate	candidate	The selection candidate.
Requirements	requirements	The requirements the candidate was chosen for.
IReadOnlyList<SelectionCandidate>	allCandidates	All candidates that were considered for selection (including candidate). These are used to present the user with possible alternatives.

Returns

Type	Description
ImplementationSelection

ToSelections(IEnumerable<SelectionCandidate>, SolverDemand)

Turns SelectionCandidates into ImplementationSelections.

Declaration

public static IEnumerable<ImplementationSelection> ToSelections(this IEnumerable<SelectionCandidate> candidates, SolverDemand demand)

Parameters

Type	Name	Description
IEnumerable<SelectionCandidate>	candidates	The selection candidates.
SolverDemand	demand	The solver demand the candidates were chosen for.

Returns

Type	Description
IEnumerable<ImplementationSelection>