com.android.build.gradle.shrinker

Class FullRunShrinker<T>

java.lang.Object

com.android.build.gradle.shrinker.AbstractShrinker<T>

com.android.build.gradle.shrinker.FullRunShrinker<T>

public class FullRunShrinker<T>
extends AbstractShrinker<T>

Code shrinker. It analyzes the input classes and the SDK jar and outputs minified classes. Uses the given implementation of ShrinkerGraph to keep state and persist it for later incremental runs.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	FullRunShrinker.Result Result of the shrinker run.

Nested classes/interfaces inherited from class com.android.build.gradle.shrinker.AbstractShrinker

AbstractShrinker.CounterSet

Field Summary

Fields inherited from class com.android.build.gradle.shrinker.AbstractShrinker

mExecutor, mGraph, mShrinkerLogger

Constructor Summary

Constructors

Constructor and Description
FullRunShrinker(com.android.ide.common.internal.WaitableExecutor executor, ShrinkerGraph<T> graph, java.util.Set<java.io.File> platformJars, ShrinkerLogger shrinkerLogger, BytecodeVersion bytecodeVersion)

Method Summary

Modifier and Type

Method and Description

FullRunShrinker.Result

run(java.util.Collection<com.android.build.api.transform.TransformInput> inputs, java.util.Collection<com.android.build.api.transform.TransformInput> referencedClasses, com.android.build.api.transform.TransformOutputProvider output, com.google.common.collect.ImmutableMap<AbstractShrinker.CounterSet,KeepRules> keepRules, KeepRules whyAreYouKeepingRules, boolean saveState) Performs the full shrinking run.

Methods inherited from class com.android.build.gradle.shrinker.AbstractShrinker

chooseOutputFile, getAllDirectories, getAllJars, incrementCounter, isProgramClass, logTime, resolveReferences, rewrite, setCounters, updateClassFiles, waitForAllTasks

Methods inherited from class java.lang.Object

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

Constructor Detail

FullRunShrinker

public FullRunShrinker(@NonNull
                       com.android.ide.common.internal.WaitableExecutor executor,
                       @NonNull
                       ShrinkerGraph<T> graph,
                       @NonNull
                       java.util.Set<java.io.File> platformJars,
                       @NonNull
                       ShrinkerLogger shrinkerLogger,
                       @Nullable
                       BytecodeVersion bytecodeVersion)

Method Detail

run

public FullRunShrinker.Result run(@NonNull
                                  java.util.Collection<com.android.build.api.transform.TransformInput> inputs,
                                  @NonNull
                                  java.util.Collection<com.android.build.api.transform.TransformInput> referencedClasses,
                                  @NonNull
                                  com.android.build.api.transform.TransformOutputProvider output,
                                  @NonNull
                                  com.google.common.collect.ImmutableMap<AbstractShrinker.CounterSet,KeepRules> keepRules,
                                  @Nullable
                                  KeepRules whyAreYouKeepingRules,
                                  boolean saveState)
                           throws java.io.IOException

Performs the full shrinking run. This clears previous incremental state, creates a new ShrinkerGraph and fills it with data read from the platform JARs as well as input classes. Then we find "entry points" that match -keep rules from the config file, and walk the graph, setting the counters and finding reachable classes and members. In the last step we rewrite all reachable class files to only contain kept class members and put them in the matching output directories.

Throws:

java.io.IOException