Package org.spongepowered.asm.util

Class LanguageFeatures

java.lang.Object

org.spongepowered.asm.util.LanguageFeatures

public final class LanguageFeatures
extends Object

Bitmask values for language features supported. Contains utility methods for detecting language features in use in supplied class nodes.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DYNAMIC_CONSTANTS	Dynamic constants
static final int	METHODS_IN_INTERFACES	Language version supports methods in interfaces
static final int	NESTING	Native nesting
static final int	PRIVATE_METHODS_IN_INTERFACES	Language version supports user-defined private methods in interfaces
static final int	PRIVATE_SYNTHETIC_METHODS_IN_INTERFACES	Language version supports synthetic private methods in interfaces
static final int	RECORDS	Record types
static final int	SEALED_CLASSES	Sealed classes (permitted subclasses)

Method Summary

Modifier and Type	Method	Description
static final String	format(int features)	Format the supplied feature mask as a plain-text list for use in error messages etc.
static int	scan(org.objectweb.asm.tree.ClassNode classNode)	Scan the supplied class node to determine required language features via heuristic.

Methods inherited from class java.lang.Object

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

Field Details

METHODS_IN_INTERFACES

public static final int METHODS_IN_INTERFACES

Language version supports methods in interfaces

See Also:

• Constant Field Values

PRIVATE_SYNTHETIC_METHODS_IN_INTERFACES

public static final int PRIVATE_SYNTHETIC_METHODS_IN_INTERFACES

Language version supports synthetic private methods in interfaces

See Also:

• Constant Field Values

PRIVATE_METHODS_IN_INTERFACES

public static final int PRIVATE_METHODS_IN_INTERFACES

Language version supports user-defined private methods in interfaces

See Also:

• Constant Field Values

NESTING

public static final int NESTING

Native nesting

See Also:

• Constant Field Values

DYNAMIC_CONSTANTS

public static final int DYNAMIC_CONSTANTS

Dynamic constants

See Also:

• Constant Field Values

RECORDS

public static final int RECORDS

Record types

See Also:

• Constant Field Values

SEALED_CLASSES

public static final int SEALED_CLASSES

Sealed classes (permitted subclasses)

See Also:

• Constant Field Values

Method Details

scan

public static int scan(org.objectweb.asm.tree.ClassNode classNode)

Scan the supplied class node to determine required language features via heuristic.

Parameters:

classNode - ClassNode to scan (must include method bodies for reliable detection)

Returns:

detected language features

format

public static final String format(int features)

Format the supplied feature mask as a plain-text list for use in error messages etc.

Parameters:

features - Language features to format

Returns:

Formatted list of features