Package org.codehaus.groovy.control

## Class CompilerConfiguration

- java.lang.Object
- - org.codehaus.groovy.control.CompilerConfiguration

-     public class CompilerConfiguration
      extends Object

  Compilation control flags and coordination stuff.

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static String[]` | `ALLOWED_JDKS` | An array of the valid targetBytecode values
    `static int` | `ASM_API_VERSION` |
    `static String` | `CURRENT_JVM_VERSION` | Deprecated.
    `static CompilerConfiguration` | `DEFAULT` | A convenience for getting a default configuration.
    `static String` | `DEFAULT_SOURCE_ENCODING` | The default source encoding
    `static String` | `INVOKEDYNAMIC` | This (`"indy"`) is the Optimization Option value for enabling `invokedynamic` compilation.
    `static Map<String,​Integer>` | `JDK_TO_BYTECODE_VERSION_MAP` | JDK version to bytecode version mapping
    `static String` | `JDK10` | This (`"10"`) is the value for targetBytecode to compile for a JDK 10.
    `static String` | `JDK11` | This (`"11"`) is the value for targetBytecode to compile for a JDK 11.
    `static String` | `JDK12` | This (`"12"`) is the value for targetBytecode to compile for a JDK 12.
    `static String` | `JDK13` | This (`"13"`) is the value for targetBytecode to compile for a JDK 13.
    `static String` | `JDK14` | This (`"14"`) is the value for targetBytecode to compile for a JDK 14.
    `static String` | `JDK4` | This (`"1.4"`) is the value for targetBytecode to compile for a JDK 1.4.
    `static String` | `JDK5` | This (`"1.5"`) is the value for targetBytecode to compile for a JDK 1.5.
    `static String` | `JDK6` | This (`"1.6"`) is the value for targetBytecode to compile for a JDK 1.6.
    `static String` | `JDK7` | This (`"1.7"`) is the value for targetBytecode to compile for a JDK 1.7.
    `static String` | `JDK8` | This (`"1.8"`) is the value for targetBytecode to compile for a JDK 1.8.
    `static String` | `JDK9` | This (`"9"`) is the value for targetBytecode to compile for a JDK 9.
    `static String` | `POST_JDK5` | Deprecated.
    `static String` | `PRE_JDK5` | Deprecated.

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `CompilerConfiguration()` | Sets the compiler flags/settings to default values.
    `CompilerConfiguration​(Properties configuration)` | Sets the configuration flags/settings according to values from the supplied `Properties` instance or if not found, supplying a default value.
    `CompilerConfiguration​(CompilerConfiguration configuration)` | Copy constructor.

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `CompilerConfiguration` | `addCompilationCustomizers​(CompilationCustomizer... customizers)` | Adds compilation customizers to the compilation process.
    `void` | `configure​(Properties configuration)` | Method to configure a CompilerConfiguration by using Properties.
    `BytecodeProcessor` | `getBytecodePostprocessor()` |
    `List<String>` | `getClasspath()` |
    `List<CompilationCustomizer>` | `getCompilationCustomizers()` | Returns the list of compilation customizers.
    `boolean` | `getDebug()` | Returns true if debugging operation has been requested.
    `String` | `getDefaultScriptExtension()` |
    `Set<String>` | `getDisabledGlobalASTTransformations()` | Returns the list of disabled global AST transformation class names.
    `Map<String,​Object>` | `getJointCompilationOptions()` | Gets the joint compilation options for this configuration.
    `int` | `getMinimumRecompilationInterval()` |
    `Map<String,​Boolean>` | `getOptimizationOptions()` | Gets the optimization options for this configuration.
    `PrintWriter` | `getOutput()` | Deprecated. not used anymore
    `boolean` | `getParameters()` | Returns true if parameter metadata generation has been enabled.
    `ParserPluginFactory` | `getPluginFactory()` |
    `boolean` | `getRecompileGroovySource()` |
    `String` | `getScriptBaseClass()` | Gets the name of the base class for scripts.
    `Set<String>` | `getScriptExtensions()` |
    `String` | `getSourceEncoding()` | Gets the currently configured source file encoding.
    `String` | `getTargetBytecode()` | Retrieves the compiler bytecode compatibility level.
    `File` | `getTargetDirectory()` | Gets the target directory for writing classes.
    `int` | `getTolerance()` | Returns the requested error tolerance.
    `boolean` | `getVerbose()` | Returns true if verbose operation has been requested.
    `int` | `getWarningLevel()` | Gets the currently configured warning level.
    `boolean` | `isIndyEnabled()` | Check whether invoke dynamic enabled
    `static boolean` | `isPostJDK5​(String bytecodeVersion)` | Checks if the specified bytecode version string represents a JDK 1.5+ compatible bytecode version.
    `static boolean` | `isPostJDK7​(String bytecodeVersion)` | Checks if the specified bytecode version string represents a JDK 1.7+ compatible bytecode version.
    `static boolean` | `isPostJDK8​(String bytecodeVersion)` | Checks if the specified bytecode version string represents a JDK 1.8+ compatible bytecode version.
    `static boolean` | `isPostJDK9​(String bytecodeVersion)` | Checks if the specified bytecode version string represents a JDK 1.8+ compatible bytecode version.
    `boolean` | `isPreviewFeatures()` | Whether the bytecode version has preview features enabled (JEP 12)
    `void` | `setBytecodePostprocessor​(BytecodeProcessor bytecodePostprocessor)` |
    `void` | `setClasspath​(String classpath)` | Sets the classpath.
    `void` | `setClasspathList​(List<String> parts)` | sets the classpath using a list of Strings
    `void` | `setDebug​(boolean debug)` | Turns debugging operation on or off.
    `void` | `setDefaultScriptExtension​(String defaultScriptExtension)` |
    `void` | `setDisabledGlobalASTTransformations​(Set<String> disabledGlobalASTTransformations)` | Disables the specified global AST transformations.
    `void` | `setJointCompilationOptions​(Map<String,​Object> options)` | Sets the joint compilation options for this configuration.
    `void` | `setMinimumRecompilationInterval​(int time)` |
    `void` | `setOptimizationOptions​(Map<String,​Boolean> options)` | Sets the optimization options for this configuration.
    `void` | `setOutput​(PrintWriter output)` | Deprecated. not used anymore, has no effect
    `void` | `setParameters​(boolean parameters)` | Turns parameter metadata generation on or off.
    `void` | `setPluginFactory​(ParserPluginFactory pluginFactory)` |
    `void` | `setPreviewFeatures​(boolean previewFeatures)` | Sets whether the bytecode version has preview features enabled (JEP 12).
    `void` | `setRecompileGroovySource​(boolean recompile)` |
    `void` | `setScriptBaseClass​(String scriptBaseClass)` | Sets the name of the base class for scripts.
    `void` | `setScriptExtensions​(Set<String> scriptExtensions)` |
    `void` | `setSourceEncoding​(String encoding)` | Sets the encoding to be used when reading source files.
    `void` | `setTargetBytecode​(String version)` | Allow setting the bytecode compatibility level.
    `void` | `setTargetDirectory​(File directory)` | Sets the target directory.
    `void` | `setTargetDirectory​(String directory)` | Sets the target directory.
    `void` | `setTolerance​(int tolerance)` | Sets the error tolerance, which is the number of non-fatal errors (per unit) that should be tolerated before compilation is aborted.
    `void` | `setVerbose​(boolean verbose)` | Turns verbose operation on or off.
    `void` | `setWarningLevel​(int level)` | Sets the warning level.

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

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

- - ### Field Detail

    - #### INVOKEDYNAMIC

          public static final String INVOKEDYNAMIC

      This (`"indy"`) is the Optimization Option value for enabling `invokedynamic` compilation.
      See Also:
        Constant Field Values

    - #### JDK4

          public static final String JDK4

      This (`"1.4"`) is the value for targetBytecode to compile for a JDK 1.4.
      See Also:
        Constant Field Values

    - #### JDK5

          public static final String JDK5

      This (`"1.5"`) is the value for targetBytecode to compile for a JDK 1.5.
      See Also:
        Constant Field Values

    - #### JDK6

          public static final String JDK6

      This (`"1.6"`) is the value for targetBytecode to compile for a JDK 1.6.
      See Also:
        Constant Field Values

    - #### JDK7

          public static final String JDK7

      This (`"1.7"`) is the value for targetBytecode to compile for a JDK 1.7.
      See Also:
        Constant Field Values

    - #### JDK8

          public static final String JDK8

      This (`"1.8"`) is the value for targetBytecode to compile for a JDK 1.8.
      See Also:
        Constant Field Values

    - #### JDK9

          public static final String JDK9

      This (`"9"`) is the value for targetBytecode to compile for a JDK 9.
      See Also:
        Constant Field Values

    - #### JDK10

          public static final String JDK10

      This (`"10"`) is the value for targetBytecode to compile for a JDK 10.
      See Also:
        Constant Field Values

    - #### JDK11

          public static final String JDK11

      This (`"11"`) is the value for targetBytecode to compile for a JDK 11.
      See Also:
        Constant Field Values

    - #### JDK12

          public static final String JDK12

      This (`"12"`) is the value for targetBytecode to compile for a JDK 12.
      See Also:
        Constant Field Values

    - #### JDK13

          public static final String JDK13

      This (`"13"`) is the value for targetBytecode to compile for a JDK 13.
      See Also:
        Constant Field Values

    - #### JDK14

          public static final String JDK14

      This (`"14"`) is the value for targetBytecode to compile for a JDK 14.
      See Also:
        Constant Field Values

    - #### POST_JDK5

          @Deprecated
          public static final String POST_JDK5

      Deprecated.
      This constant is for comparing targetBytecode to ensure it is set to JDK 1.5 or later.
      See Also:
        Constant Field Values

    - #### PRE_JDK5

          @Deprecated
          public static final String PRE_JDK5

      Deprecated.
      This constant is for comparing targetBytecode to ensure it is set to an earlier value than JDK 1.5.
      See Also:
        Constant Field Values

    - #### JDK_TO_BYTECODE_VERSION_MAP

          public static final Map<String,​Integer> JDK_TO_BYTECODE_VERSION_MAP

      JDK version to bytecode version mapping

    - #### ALLOWED_JDKS

          public static final String[] ALLOWED_JDKS

      An array of the valid targetBytecode values

    - #### CURRENT_JVM_VERSION

          @Deprecated
          public static final String CURRENT_JVM_VERSION

      Deprecated.

    - #### DEFAULT_SOURCE_ENCODING

          public static final String DEFAULT_SOURCE_ENCODING

      The default source encoding
      See Also:
        Constant Field Values

    - #### DEFAULT

          public static final CompilerConfiguration DEFAULT

      A convenience for getting a default configuration. Do not modify it! See `CompilerConfiguration(Properties)` for an example on how to make a suitable copy to modify. But if you're really starting from a default context, then you probably just want `new CompilerConfiguration()`.

    - #### ASM_API_VERSION

          public static final int ASM_API_VERSION

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### CompilerConfiguration

          public CompilerConfiguration()

      Sets the compiler flags/settings to default values. The following system properties are referenced when setting the configuration:

      > Property Key | Related Property Getter
      > --- | ---
      > `groovy.source.encoding` (defaulting to `file.encoding`) | `getSourceEncoding()`
      > `groovy.target.bytecode` | `getTargetBytecode()`
      > `groovy.target.directory` | `getTargetDirectory()`
      > `groovy.parameters` | `getParameters()`
      > `groovy.preview.features` | `isPreviewFeatures()`
      > `groovy.script.base` | `getScriptBaseClass()`
      > `groovy.default.scriptExtension` | `getDefaultScriptExtension()`

      The following system properties are referenced when setting the configuration optimization options:

      > Property Key | Related Property Getter
      > --- | ---
      > `groovy.target.indy` | `getOptimizationOptions()`

    - #### CompilerConfiguration

          public CompilerConfiguration​(CompilerConfiguration configuration)

      Copy constructor. Use this if you have a mostly correct configuration for your compilation but you want to make a some changes programmatically. An important reason to prefer this approach is that your code will most likely be forward compatible with future changes to this configuration API.

      An example of this copy constructor at work:

      >      // In all likelihood there is already a configuration in your code's context
      >      // for you to copy, but for the sake of this example we'll use the global default.
      >      CompilerConfiguration myConfiguration = new CompilerConfiguration(CompilerConfiguration.DEFAULT);
      >      myConfiguration.setDebug(true);

      Parameters:
        `configuration` - The configuration to copy.

    - #### CompilerConfiguration

          public CompilerConfiguration​(Properties configuration)
                                throws ConfigurationException

      Sets the configuration flags/settings according to values from the supplied `Properties` instance or if not found, supplying a default value. Note that unlike `CompilerConfiguration()`, the "defaults" here do not in general include checking the settings in `System.getProperties()`. If you want to set a few flags but keep Groovy's default configuration behavior then be sure to make your settings in a `Properties` object that is backed by `System.getProperties()` (which is done using this constructor). That might be done like this:

      >      Properties myProperties = new Properties(System.getProperties());
      >      myProperties.setProperty("groovy.output.debug", "true");
      >      myConfiguration = new CompilerConfiguration(myProperties);

      And you also have to contend with a possible `SecurityException` when getting the system properties (See `System.getProperties()`). A safer approach would be to copy a default `CompilerConfiguration` and make your changes there using the setter:

      >      // In all likelihood there is already a configuration for you to copy,
      >      // but for the sake of this example we'll use the global default.
      >      CompilerConfiguration myConfiguration = new CompilerConfiguration(CompilerConfiguration.DEFAULT);
      >      myConfiguration.setDebug(true);

      The following properties are referenced when setting the configuration:

      > Property Key | Related Property Getter
      > --- | ---
      > `groovy.warnings` | `getWarningLevel()`
      > `groovy.source.encoding` (defaulting to `file.encoding`) | `getSourceEncoding()`
      > `groovy.target.directory` | `getTargetDirectory()`
      > `groovy.target.bytecode` | `getTargetBytecode()`
      > `groovy.parameters` | `getParameters()`
      > `groovy.preview.features` | `isPreviewFeatures()`
      > `groovy.classpath` | `getClasspath()`
      > `groovy.output.verbose` | `getVerbose()`
      > `groovy.output.debug` | `getDebug()`
      > `groovy.errors.tolerance` | `getTolerance()`
      > `groovy.default.scriptExtension` | `getDefaultScriptExtension()`
      > `groovy.script.base` | `getScriptBaseClass()`
      > `groovy.recompile` | `getRecompileGroovySource()`
      > `groovy.recompile.minimumInterval` | `getMinimumRecompilationInterval()`
      > `groovy.disabled.global.ast.transformations` | `getDisabledGlobalASTTransformations()`

      Parameters:
        `configuration` - The properties to get flag values from.
      Throws:
        `ConfigurationException`

  - ### Method Detail

    - #### isPostJDK5

          public static boolean isPostJDK5​(String bytecodeVersion)

      Checks if the specified bytecode version string represents a JDK 1.5+ compatible bytecode version.
      Parameters:
        `bytecodeVersion` - The parameter can take one of the values in `ALLOWED_JDKS`.
      Returns:
        true if the bytecode version is JDK 1.5+

    - #### isPostJDK7

          public static boolean isPostJDK7​(String bytecodeVersion)

      Checks if the specified bytecode version string represents a JDK 1.7+ compatible bytecode version.
      Parameters:
        `bytecodeVersion` - The parameter can take one of the values in `ALLOWED_JDKS`.
      Returns:
        true if the bytecode version is JDK 1.7+

    - #### isPostJDK8

          public static boolean isPostJDK8​(String bytecodeVersion)

      Checks if the specified bytecode version string represents a JDK 1.8+ compatible bytecode version.
      Parameters:
        `bytecodeVersion` - The parameter can take one of the values in `ALLOWED_JDKS`.
      Returns:
        true if the bytecode version is JDK 1.8+

    - #### isPostJDK9

          public static boolean isPostJDK9​(String bytecodeVersion)

      Checks if the specified bytecode version string represents a JDK 1.8+ compatible bytecode version.
      Parameters:
        `bytecodeVersion` - The parameter can take one of the values in `ALLOWED_JDKS`.
      Returns:
        true if the bytecode version is JDK 9.0+

    - #### configure

          public void configure​(Properties configuration)
                         throws ConfigurationException

      Method to configure a CompilerConfiguration by using Properties. For a list of available properties look at `CompilerConfiguration(Properties)`.
      Parameters:
        `configuration` - The properties to get flag values from.
      Throws:
        `ConfigurationException`

    - #### getWarningLevel

          public int getWarningLevel()

      Gets the currently configured warning level. See `WarningMessage` for level details.

    - #### setWarningLevel

          public void setWarningLevel​(int level)

      Sets the warning level. See `WarningMessage` for level details.

    - #### getSourceEncoding

          public String getSourceEncoding()

      Gets the currently configured source file encoding.

    - #### setSourceEncoding

          public void setSourceEncoding​(String encoding)

      Sets the encoding to be used when reading source files.

    - #### getOutput

          @Deprecated
          public PrintWriter getOutput()

      Deprecated.
      not used anymore
      Gets the currently configured output writer.

    - #### setOutput

          @Deprecated
          public void setOutput​(PrintWriter output)

      Deprecated.
      not used anymore, has no effect
      Sets the output writer.

    - #### getTargetDirectory

          public File getTargetDirectory()

      Gets the target directory for writing classes.

    - #### setTargetDirectory

          public void setTargetDirectory​(String directory)

      Sets the target directory.

    - #### setTargetDirectory

          public void setTargetDirectory​(File directory)

      Sets the target directory.

    - #### getClasspath

          public List<String> getClasspath()

      Returns:
        the classpath

    - #### setClasspath

          public void setClasspath​(String classpath)

      Sets the classpath.

    - #### setClasspathList

          public void setClasspathList​(List<String> parts)

      sets the classpath using a list of Strings
      Parameters:
        `parts` - list of strings containing the classpath parts

    - #### getVerbose

          public boolean getVerbose()

      Returns true if verbose operation has been requested.

    - #### setVerbose

          public void setVerbose​(boolean verbose)

      Turns verbose operation on or off.

    - #### getDebug

          public boolean getDebug()

      Returns true if debugging operation has been requested.

    - #### setDebug

          public void setDebug​(boolean debug)

      Turns debugging operation on or off.

    - #### getParameters

          public boolean getParameters()

      Returns true if parameter metadata generation has been enabled.

    - #### setParameters

          public void setParameters​(boolean parameters)

      Turns parameter metadata generation on or off.

    - #### getTolerance

          public int getTolerance()

      Returns the requested error tolerance.

    - #### setTolerance

          public void setTolerance​(int tolerance)

      Sets the error tolerance, which is the number of non-fatal errors (per unit) that should be tolerated before compilation is aborted.

    - #### getScriptBaseClass

          public String getScriptBaseClass()

      Gets the name of the base class for scripts. It must be a subclass of Script.

    - #### setScriptBaseClass

          public void setScriptBaseClass​(String scriptBaseClass)

      Sets the name of the base class for scripts. It must be a subclass of Script.

    - #### getPluginFactory

          public ParserPluginFactory getPluginFactory()

    - #### setPluginFactory

          public void setPluginFactory​(ParserPluginFactory pluginFactory)

    - #### setScriptExtensions

          public void setScriptExtensions​(Set<String> scriptExtensions)

    - #### getScriptExtensions

          public Set<String> getScriptExtensions()

    - #### getDefaultScriptExtension

          public String getDefaultScriptExtension()

    - #### setDefaultScriptExtension

          public void setDefaultScriptExtension​(String defaultScriptExtension)

    - #### setRecompileGroovySource

          public void setRecompileGroovySource​(boolean recompile)

    - #### getRecompileGroovySource

          public boolean getRecompileGroovySource()

    - #### setMinimumRecompilationInterval

          public void setMinimumRecompilationInterval​(int time)

    - #### getMinimumRecompilationInterval

          public int getMinimumRecompilationInterval()

    - #### setTargetBytecode

          public void setTargetBytecode​(String version)

      Allow setting the bytecode compatibility level. The parameter can take one of the values in `ALLOWED_JDKS`.
      Parameters:
        `version` - the bytecode compatibility level

    - #### getTargetBytecode

          public String getTargetBytecode()

      Retrieves the compiler bytecode compatibility level. Defaults to the minimum officially supported bytecode version for any particular Groovy version.
      Returns:
        bytecode compatibility level

    - #### isPreviewFeatures

          public boolean isPreviewFeatures()

      Whether the bytecode version has preview features enabled (JEP 12)
      Returns:
        preview features

    - #### setPreviewFeatures

          public void setPreviewFeatures​(boolean previewFeatures)

      Sets whether the bytecode version has preview features enabled (JEP 12).
      Parameters:
        `previewFeatures` - whether to support preview features

    - #### getJointCompilationOptions

          public Map<String,​Object> getJointCompilationOptions()

      Gets the joint compilation options for this configuration.
      Returns:
        the options

    - #### setJointCompilationOptions

          public void setJointCompilationOptions​(Map<String,​Object> options)

      Sets the joint compilation options for this configuration. Using null will disable joint compilation.
      Parameters:
        `options` - the options

    - #### getOptimizationOptions

          public Map<String,​Boolean> getOptimizationOptions()

      Gets the optimization options for this configuration.
      Returns:
        the options (always not null)

    - #### setOptimizationOptions

          public void setOptimizationOptions​(Map<String,​Boolean> options)

      Sets the optimization options for this configuration. No entry or a true for that entry means to enable that optimization, a false means the optimization is disabled. Valid keys are "all" and "int".
      Parameters:
        `options` - the options.
      Throws:
        `IllegalArgumentException` - if the options are null

    - #### addCompilationCustomizers

          public CompilerConfiguration addCompilationCustomizers​(CompilationCustomizer... customizers)

      Adds compilation customizers to the compilation process. A compilation customizer is a class node operation which performs various operations going from adding imports to access control.
      Parameters:
        `customizers` - the list of customizers to be added
      Returns:
        this configuration instance

    - #### getCompilationCustomizers

          public List<CompilationCustomizer> getCompilationCustomizers()

      Returns the list of compilation customizers.
      Returns:
        the customizers (always not null)

    - #### getDisabledGlobalASTTransformations

          public Set<String> getDisabledGlobalASTTransformations()

      Returns the list of disabled global AST transformation class names.
      Returns:
        a list of global AST transformation fully qualified class names

    - #### setDisabledGlobalASTTransformations

          public void setDisabledGlobalASTTransformations​(Set<String> disabledGlobalASTTransformations)

      Disables the specified global AST transformations. In order to avoid class loading side effects, it is not recommended to use MyASTTransformation.class.getName() but instead directly use the class name as a string. Disabled AST transformations only apply to automatically loaded global AST transformations, that is to say transformations defined in a META-INF/services/org.codehaus.groovy.transform.ASTTransformation file. If you explicitly add a global AST transformation in your compilation process, for example using the `ASTTransformationCustomizer` or using a `CompilationUnit.PrimaryClassNodeOperation`, then nothing will prevent the transformation from being loaded.
      Parameters:
        `disabledGlobalASTTransformations` - a set of fully qualified class names of global AST transformations which should not be loaded.

    - #### getBytecodePostprocessor

          public BytecodeProcessor getBytecodePostprocessor()

    - #### setBytecodePostprocessor

          public void setBytecodePostprocessor​(BytecodeProcessor bytecodePostprocessor)

    - #### isIndyEnabled

          public boolean isIndyEnabled()

      Check whether invoke dynamic enabled
      Returns:
        the result