com.facebook.buck.parser.targetnode

Class BuildTargetToUnconfiguredTargetNodeComputation

java.lang.Object

com.facebook.buck.parser.targetnode.BuildTargetToUnconfiguredTargetNodeComputation

All Implemented Interfaces:

GraphComputation<BuildTargetToUnconfiguredTargetNodeKey,UnconfiguredTargetNode>

public class BuildTargetToUnconfiguredTargetNodeComputation
extends Object
implements GraphComputation<BuildTargetToUnconfiguredTargetNodeKey,UnconfiguredTargetNode>

Transforms one target from specific BuildFileManifest to UnconfiguredTargetNode

Method Summary

Modifier and Type	Method and Description
com.google.common.collect.ImmutableSet<? extends ComputeKey<? extends ComputeResult>>	discoverDeps(BuildTargetToUnconfiguredTargetNodeKey key, ComputationEnvironment env) Compute dependent keys required to compute given key, and a set of dependencies as listed by GraphComputation.discoverPreliminaryDeps(ComputeKey).
com.google.common.collect.ImmutableSet<? extends ComputeKey<? extends ComputeResult>>	discoverPreliminaryDeps(BuildTargetToUnconfiguredTargetNodeKey key) Compute dependent keys required to compute given the current key.
ComputationIdentifier<UnconfiguredTargetNode>	getIdentifier()
static BuildTargetToUnconfiguredTargetNodeComputation	of(UnconfiguredTargetNodeFactory unconfiguredTargetNodeFactory, Cell cell) Create new instance of BuildTargetToUnconfiguredTargetNodeComputation
UnconfiguredTargetNode	transform(BuildTargetToUnconfiguredTargetNodeKey key, ComputationEnvironment env) Perform a transformation identified by key Key into a final type Result.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

of

public static BuildTargetToUnconfiguredTargetNodeComputation of(UnconfiguredTargetNodeFactory unconfiguredTargetNodeFactory,
                                                                Cell cell)

Create new instance of BuildTargetToUnconfiguredTargetNodeComputation

Parameters:

unconfiguredTargetNodeFactory - An actual factory that will create UnconfiguredTargetNode from raw attributes containing in BuildFileManifest

cell - A Cell object that contains targets used in this transformation, it is mostly used to resolve paths to absolute paths

Returns:

getIdentifier

public ComputationIdentifier<UnconfiguredTargetNode> getIdentifier()

Specified by:

getIdentifier in interface GraphComputation<BuildTargetToUnconfiguredTargetNodeKey,UnconfiguredTargetNode>

Returns:

the identifier of the key for this transformation. This should match ComputeKey.getIdentifier()

transform

public UnconfiguredTargetNode transform(BuildTargetToUnconfiguredTargetNodeKey key,
                                        ComputationEnvironment env)

Description copied from interface: GraphComputation

Perform a transformation identified by key Key into a final type Result. This transformation should be performed synchronously.

Specified by:

transform in interface GraphComputation<BuildTargetToUnconfiguredTargetNodeKey,UnconfiguredTargetNode>

Parameters:

key - The Key of the requested result

env - The execution environment containing results of keys from GraphComputation.discoverDeps(ComputeKey, ComputationEnvironment) and GraphComputation.discoverPreliminaryDeps(ComputeKey)

Returns:

The result of the transformation

discoverDeps

public com.google.common.collect.ImmutableSet<? extends ComputeKey<? extends ComputeResult>> discoverDeps(BuildTargetToUnconfiguredTargetNodeKey key,
                                                                                                          ComputationEnvironment env)

Description copied from interface: GraphComputation

Compute dependent keys required to compute given key, and a set of dependencies as listed by GraphComputation.discoverPreliminaryDeps(ComputeKey). The results of those computations will be available in GraphComputation.transform(ComputeKey, ComputationEnvironment) as a part of ComputationEnvironment

Specified by:

discoverDeps in interface GraphComputation<BuildTargetToUnconfiguredTargetNodeKey,UnconfiguredTargetNode>

Parameters:

key - the current key to transform

env - The execution environment containing results of keys from GraphComputation.discoverPreliminaryDeps(ComputeKey)

Returns:

a set of keys that the transformation of the current key depends on

discoverPreliminaryDeps

public com.google.common.collect.ImmutableSet<? extends ComputeKey<? extends ComputeResult>> discoverPreliminaryDeps(BuildTargetToUnconfiguredTargetNodeKey key)

Description copied from interface: GraphComputation

Compute dependent keys required to compute given the current key. The results of those computations will be available in GraphComputation.discoverDeps(ComputeKey, ComputationEnvironment) as a part of ComputationEnvironment, and GraphComputation.transform(ComputeKey, ComputationEnvironment)

Specified by:

discoverPreliminaryDeps in interface GraphComputation<BuildTargetToUnconfiguredTargetNodeKey,UnconfiguredTargetNode>

Parameters:

key - the current key to transform

Returns:

a set of keys that the GraphComputation.discoverDeps(ComputeKey, ComputationEnvironment) and GraphComputation.transform(ComputeKey, ComputationEnvironment) of the current key depends on