Package org.gradle.api.plugins.antlr

## Class AntlrTask

- java.lang.Object
- - org.gradle.api.internal.AbstractTask
  - - org.gradle.api.DefaultTask
    - - org.gradle.api.internal.ConventionTask
      - - org.gradle.api.tasks.SourceTask
        - - org.gradle.api.plugins.antlr.AntlrTask

- All Implemented Interfaces:
    `Comparable<Task>`, `org.gradle.api.internal.DynamicObjectAware`, `org.gradle.api.internal.IConventionAware`, `org.gradle.api.internal.TaskInternal`, `ExtensionAware`, `Task`, `PatternFilterable`, `Configurable<Task>`

      @NonNullApi
      @CacheableTask
      public class AntlrTask
      extends SourceTask

  Generates parsers from Antlr grammars.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface org.gradle.api.Task

      `Task.Namer`

  - ### Field Summary

    - ### Fields inherited from interface org.gradle.api.Task

      `TASK_ACTION, TASK_CONSTRUCTOR_ARGS, TASK_DEPENDS_ON, TASK_DESCRIPTION, TASK_GROUP, TASK_NAME, TASK_OVERWRITE, TASK_TYPE`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `AntlrTask()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `execute​(InputChanges inputChanges)` | Generate the parsers.
    `FileCollection` | `getAntlrClasspath()` | Returns the classpath containing the Ant ANTLR task implementation.
    `List<String>` | `getArguments()` | List of command-line arguments passed to the antlr process
    `protected org.gradle.internal.file.Deleter` | `getDeleter()` |
    `String` | `getMaxHeapSize()` | The maximum heap size for the forked antlr process (ex: '1g').
    `File` | `getOutputDirectory()` | Returns the directory to generate the parser source files into.
    `protected ProjectLayout` | `getProjectLayout()` |
    `FileTree` | `getSource()` | Returns the source for this task, after the include and exclude patterns have been applied.
    `protected FileCollection` | `getStableSources()` | The sources for incremental change detection.
    `protected org.gradle.process.internal.worker.WorkerProcessFactory` | `getWorkerProcessBuilderFactory()` |
    `boolean` | `isTrace()` | Specifies that all rules call `traceIn`/`traceOut`.
    `boolean` | `isTraceLexer()` | Specifies that all lexer rules call `traceIn`/`traceOut`.
    `boolean` | `isTraceParser()` | Specifies that all parser rules call `traceIn`/`traceOut`.
    `boolean` | `isTraceTreeWalker()` | Specifies that all tree walker rules call `traceIn`/`traceOut`.
    `protected void` | `setAntlrClasspath​(FileCollection antlrClasspath)` | Specifies the classpath containing the Ant ANTLR task implementation.
    `void` | `setArguments​(List<String> arguments)` |
    `void` | `setMaxHeapSize​(String maxHeapSize)` |
    `void` | `setOutputDirectory​(File outputDirectory)` | Specifies the directory to generate the parser source files into.
    `void` | `setSource​(Object source)` | Sets the source for this task.
    `void` | `setSource​(FileTree source)` | Sets the source for this task.
    `void` | `setTrace​(boolean trace)` |
    `void` | `setTraceLexer​(boolean traceLexer)` |
    `void` | `setTraceParser​(boolean traceParser)` |
    `void` | `setTraceTreeWalker​(boolean traceTreeWalker)` |

    - ### Methods inherited from class org.gradle.api.tasks.SourceTask

      `exclude, exclude, exclude, exclude, getExcludes, getIncludes, getPatternSet, getPatternSetFactory, include, include, include, include, setExcludes, setIncludes, source`

    - ### Methods inherited from class org.gradle.api.internal.ConventionTask

      `conventionMapping, conventionMapping, getConventionMapping`

    - ### Methods inherited from class org.gradle.api.DefaultTask

      `compareTo, configure, dependsOn, doFirst, doFirst, doFirst, doLast, doLast, doLast, finalizedBy, getActions, getAnt, getDependsOn, getDescription, getDestroyables, getDidWork, getEnabled, getExtensions, getFinalizedBy, getGroup, getInputs, getLocalState, getLogger, getLogging, getMustRunAfter, getName, getOutputs, getPath, getProject, getShouldRunAfter, getState, getTaskDependencies, getTemporaryDir, getTimeout, hasProperty, mustRunAfter, onlyIf, onlyIf, property, setActions, setDependsOn, setDescription, setDidWork, setEnabled, setFinalizedBy, setGroup, setMustRunAfter, setOnlyIf, setOnlyIf, setProperty, setShouldRunAfter, shouldRunAfter, usesService`

    - ### Methods inherited from class org.gradle.api.internal.AbstractTask

      `appendParallelSafeAction, doNotTrackState, getAsDynamicObject, getConvention, getIdentityPath, getImpliesSubProjects, getLifecycleDependencies, getOnlyIf, getReasonNotToTrackState, getReasonTaskIsIncompatibleWithConfigurationCache, getRequiredServices, getServices, getSharedResources, getStandardOutputCapture, getTaskActions, getTaskIdentity, getTemporaryDirFactory, hasTaskActions, injectIntoNewInstance, isCompatibleWithConfigurationCache, isEnabled, isHasCustomActions, notCompatibleWithConfigurationCache, prependParallelSafeAction, setImpliesSubProjects`

    - ### Methods inherited from class java.lang.Object

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

    - ### Methods inherited from interface org.gradle.api.Task

      `doNotTrackState, getConvention, notCompatibleWithConfigurationCache`

- - ### Constructor Detail

    - #### AntlrTask

          public AntlrTask()

  - ### Method Detail

    - #### isTrace

          @Input
          public boolean isTrace()

      Specifies that all rules call `traceIn`/`traceOut`.

    - #### setTrace

          public void setTrace​(boolean trace)

    - #### isTraceLexer

          @Input
          public boolean isTraceLexer()

      Specifies that all lexer rules call `traceIn`/`traceOut`.

    - #### setTraceLexer

          public void setTraceLexer​(boolean traceLexer)

    - #### isTraceParser

          @Input
          public boolean isTraceParser()

      Specifies that all parser rules call `traceIn`/`traceOut`.

    - #### setTraceParser

          public void setTraceParser​(boolean traceParser)

    - #### isTraceTreeWalker

          @Input
          public boolean isTraceTreeWalker()

      Specifies that all tree walker rules call `traceIn`/`traceOut`.

    - #### setTraceTreeWalker

          public void setTraceTreeWalker​(boolean traceTreeWalker)

    - #### getMaxHeapSize

          @Internal
          public String getMaxHeapSize()

      The maximum heap size for the forked antlr process (ex: '1g').

    - #### setMaxHeapSize

          public void setMaxHeapSize​(String maxHeapSize)

    - #### setArguments

          public void setArguments​(List<String> arguments)

    - #### getArguments

          @Input
          public List<String> getArguments()

      List of command-line arguments passed to the antlr process
      Returns:
        The antlr command-line arguments

    - #### getOutputDirectory

          @OutputDirectory
          public File getOutputDirectory()

      Returns the directory to generate the parser source files into.
      Returns:
        The output directory.

    - #### setOutputDirectory

          public void setOutputDirectory​(File outputDirectory)

      Specifies the directory to generate the parser source files into.
      Parameters:
        `outputDirectory` - The output directory. Must not be null.

    - #### getAntlrClasspath

          @Classpath
          public FileCollection getAntlrClasspath()

      Returns the classpath containing the Ant ANTLR task implementation.
      Returns:
        The Ant task implementation classpath.

    - #### setAntlrClasspath

          protected void setAntlrClasspath​(FileCollection antlrClasspath)

      Specifies the classpath containing the Ant ANTLR task implementation.
      Parameters:
        `antlrClasspath` - The Ant task implementation classpath. Must not be null.

    - #### getWorkerProcessBuilderFactory

          @Inject
          protected org.gradle.process.internal.worker.WorkerProcessFactory getWorkerProcessBuilderFactory()

    - #### getProjectLayout

          @Inject
          protected ProjectLayout getProjectLayout()

    - #### execute

          public void execute​(InputChanges inputChanges)

      Generate the parsers.
      Since:
        6.0

    - #### setSource

          public void setSource​(FileTree source)

      Sets the source for this task. Delegates to `setSource(Object)`. If the source is of type `SourceDirectorySet`, then the relative path of each source grammar files is used to determine the relative output path of the generated source If the source is not of type `SourceDirectorySet`, then the generated source files end up flattened in the specified output directory.
      Overrides:
        `setSource` in class `SourceTask`
      Parameters:
        `source` - The source.
      Since:
        4.0

    - #### setSource

          public void setSource​(Object source)

      Sets the source for this task. Delegates to `SourceTask.setSource(Object)`. If the source is of type `SourceDirectorySet`, then the relative path of each source grammar files is used to determine the relative output path of the generated source If the source is not of type `SourceDirectorySet`, then the generated source files end up flattened in the specified output directory.
      Overrides:
        `setSource` in class `SourceTask`
      Parameters:
        `source` - The source.

    - #### getSource

          @Internal("tracked via stableSources")
          public FileTree getSource()

      Returns the source for this task, after the include and exclude patterns have been applied. Ignores source files which do not exist.

      The `PathSensitivity` for the sources is configured to be `PathSensitivity.ABSOLUTE`. If your sources are less strict, please change it accordingly by overriding this method in your subclass.

      Overrides:
        `getSource` in class `SourceTask`
      Returns:
        The source.

    - #### getStableSources

          @SkipWhenEmpty
          @IgnoreEmptyDirectories
          @PathSensitive(RELATIVE)
          @InputFiles
          protected FileCollection getStableSources()

      The sources for incremental change detection.
      Since:
        6.0

    - #### getDeleter

          @Inject
          protected org.gradle.internal.file.Deleter getDeleter()