com.sun.tools.javac.code
Class Flags

java.lang.Object
  com.sun.tools.javac.code.Flags

public class Flags
extends java.lang.Object

Access flags and other modifiers for Java classes and members.

This is NOT part of any API supported by Sun Microsystems. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

Nested Class Summary

static class

Flags.Flag

Field Summary

static int	ABSTRACT
static int	ACC_BRIDGE
static int	ACC_SUPER
static int	ACC_VARARGS
static int	AccessFlags Modifier masks.
static int	ACYCLIC Flag for class symbols to indicate it has been checked and found acyclic.
static long	ACYCLIC_ANN Flag for annotation type symbols to indicate it has been checked and found acyclic.
static int	AllowedInterfaceMethodFlags Modifier masks.
static int	ANNOTATION Flag that marks attribute interfaces, added in classfile v49.0.
static int	ANONCONSTR Flag for synthesized default constructors of anonymous classes.
static int	BLOCK Flag is set for compiler-generated anonymous method symbols that `own' an initializer block.
static long	BRIDGE Flag that marks bridge methods.
static int	CLASS_SEEN Flag is set for class symbols if a class file was found for this class.
static int	ClassFlags Modifier masks.
static int	COMPOUND Flag is set for compiler-generated compound classes representing multiple variable bounds
static int	ConstructorFlags Modifier masks.
static int	DEPRECATED Flag is set if symbol is deprecated.
static int	ENUM An enumeration type or an enumeration constant, added in classfile v49.0.
static int	EXISTS Flag is set for package symbols if a package has a member or directory and therefore exists.
static int	FINAL
static long	GENERATEDCONSTR Flag that marks a generated default constructor.
static int	HASINIT Flag is set for a variable symbol if the variable's definition has an initializer part.
static long	HYPOTHETICAL Flag that marks a hypothetical method that need not really be generated in the binary, but is present in the symbol table to simplify checking for erasure clashes.
static int	ImplicitInterfaceMethodFlags Modifier masks.
static int	INTERFACE
static int	InterfaceVarFlags Modifier masks.
static int	IPROXY Flag is set for compiler-generated abstract methods that implement an interface method (Miranda methods).
static int	LocalClassFlags Modifier masks.
static long	LocalVarFlags
static int	LOCKED Flag for class symbols is set and later re-set as a lock in Enter to detect cycles in the superclass/superinterface relations.
static int	MemberClassFlags Modifier masks.
static int	MethodFlags Modifier masks.
private static java.util.Map<java.lang.Long,java.util.Set<Modifier>>	modifierSets
static int	NATIVE
static int	NOOUTERTHIS Flag is set for nested classes that do not access instance members or `this' of an outer class and therefore don't need to be passed a this$n reference.
static long	PARAMETER Flag that marks formal parameters.
static int	PRIVATE
static long	PROPRIETARY Flag that marks a Sun proprietary class.
static int	PROTECTED
static int	PUBLIC
static int	SEPARABLE
static int	SOURCE_SEEN Flag is set for class symbols if a source file was found for this class.
static int	StandardFlags
static int	STATIC
static int	STRICTFP
static int	SYNCHRONIZED
static int	SYNTHETIC
static int	TRANSIENT
static int	UNATTRIBUTED Flag for class symbols is set and later re-set to indicate that a class has been entered but has not yet been attributed.
static long	VARARGS Flag that marks varargs methods.
static int	VarFlags Modifier masks.
static int	VOLATILE

Constructor Summary

private

Flags()

Method Summary

static java.util.EnumSet<Flags.Flag>	asFlagSet(long mask)
static java.util.Set<Modifier>	asModifierSet(long flags)
static boolean	isConstant(Symbol.VarSymbol symbol)
static boolean	isEnum(Symbol symbol)
static boolean	isStatic(Symbol symbol)
static java.lang.String	toString(long flags)

Methods inherited from class java.lang.Object

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

Field Detail

PUBLIC

public static final int PUBLIC

See Also:

Constant Field Values

PRIVATE

public static final int PRIVATE

See Also:

Constant Field Values

PROTECTED

public static final int PROTECTED

See Also:

Constant Field Values

STATIC

public static final int STATIC

See Also:

Constant Field Values

FINAL

public static final int FINAL

See Also:

Constant Field Values

SYNCHRONIZED

public static final int SYNCHRONIZED

See Also:

Constant Field Values

VOLATILE

public static final int VOLATILE

See Also:

Constant Field Values

TRANSIENT

public static final int TRANSIENT

See Also:

Constant Field Values

NATIVE

public static final int NATIVE

See Also:

Constant Field Values

INTERFACE

public static final int INTERFACE

See Also:

Constant Field Values

ABSTRACT

public static final int ABSTRACT

See Also:

Constant Field Values

STRICTFP

public static final int STRICTFP

See Also:

Constant Field Values

SYNTHETIC

public static final int SYNTHETIC

See Also:

Constant Field Values

ANNOTATION

public static final int ANNOTATION

Flag that marks attribute interfaces, added in classfile v49.0.

See Also:

Constant Field Values

ENUM

public static final int ENUM

An enumeration type or an enumeration constant, added in classfile v49.0.

See Also:

Constant Field Values

SEPARABLE

public static final int SEPARABLE

See Also:

Constant Field Values

StandardFlags

public static final int StandardFlags

See Also:

Constant Field Values

ACC_SUPER

public static final int ACC_SUPER

See Also:

Constant Field Values

ACC_BRIDGE

public static final int ACC_BRIDGE

See Also:

Constant Field Values

ACC_VARARGS

public static final int ACC_VARARGS

See Also:

Constant Field Values

DEPRECATED

public static final int DEPRECATED

Flag is set if symbol is deprecated.

See Also:

Constant Field Values

HASINIT

public static final int HASINIT

Flag is set for a variable symbol if the variable's definition has an initializer part.

See Also:

Constant Field Values

BLOCK

public static final int BLOCK

Flag is set for compiler-generated anonymous method symbols that `own' an initializer block.

See Also:

Constant Field Values

IPROXY

public static final int IPROXY

Flag is set for compiler-generated abstract methods that implement an interface method (Miranda methods).

See Also:

Constant Field Values

NOOUTERTHIS

public static final int NOOUTERTHIS

Flag is set for nested classes that do not access instance members or `this' of an outer class and therefore don't need to be passed a this$n reference. This flag is currently set only for anonymous classes in superclass constructor calls and only for pre 1.4 targets. todo: use this flag for optimizing away this$n parameters in other cases.

See Also:

Constant Field Values

EXISTS

public static final int EXISTS

Flag is set for package symbols if a package has a member or directory and therefore exists.

See Also:

Constant Field Values

COMPOUND

public static final int COMPOUND

Flag is set for compiler-generated compound classes representing multiple variable bounds

See Also:

Constant Field Values

CLASS_SEEN

public static final int CLASS_SEEN

Flag is set for class symbols if a class file was found for this class.

See Also:

Constant Field Values

SOURCE_SEEN

public static final int SOURCE_SEEN

Flag is set for class symbols if a source file was found for this class.

See Also:

Constant Field Values

LOCKED

public static final int LOCKED

Flag for class symbols is set and later re-set as a lock in Enter to detect cycles in the superclass/superinterface relations. Similarly for constructor call cycle detection in Attr.

See Also:

Constant Field Values

UNATTRIBUTED

public static final int UNATTRIBUTED

Flag for class symbols is set and later re-set to indicate that a class has been entered but has not yet been attributed.

See Also:

Constant Field Values

ANONCONSTR

public static final int ANONCONSTR

Flag for synthesized default constructors of anonymous classes.

See Also:

Constant Field Values

ACYCLIC

public static final int ACYCLIC

Flag for class symbols to indicate it has been checked and found acyclic.

See Also:

Constant Field Values

BRIDGE

public static final long BRIDGE

Flag that marks bridge methods.

See Also:

Constant Field Values

PARAMETER

public static final long PARAMETER

Flag that marks formal parameters.

See Also:

Constant Field Values

VARARGS

public static final long VARARGS

Flag that marks varargs methods.

See Also:

Constant Field Values

ACYCLIC_ANN

public static final long ACYCLIC_ANN

Flag for annotation type symbols to indicate it has been checked and found acyclic.

See Also:

Constant Field Values

GENERATEDCONSTR

public static final long GENERATEDCONSTR

Flag that marks a generated default constructor.

See Also:

Constant Field Values

HYPOTHETICAL

public static final long HYPOTHETICAL

Flag that marks a hypothetical method that need not really be generated in the binary, but is present in the symbol table to simplify checking for erasure clashes.

See Also:

Constant Field Values

PROPRIETARY

public static final long PROPRIETARY

Flag that marks a Sun proprietary class.

See Also:

Constant Field Values

AccessFlags

public static final int AccessFlags

Modifier masks.

See Also:

Constant Field Values

LocalClassFlags

public static final int LocalClassFlags

Modifier masks.

See Also:

Constant Field Values

MemberClassFlags

public static final int MemberClassFlags

Modifier masks.

See Also:

Constant Field Values

ClassFlags

public static final int ClassFlags

Modifier masks.

See Also:

Constant Field Values

InterfaceVarFlags

public static final int InterfaceVarFlags

Modifier masks.

See Also:

Constant Field Values

VarFlags

public static final int VarFlags

Modifier masks.

See Also:

Constant Field Values

ConstructorFlags

public static final int ConstructorFlags

Modifier masks.

See Also:

Constant Field Values

AllowedInterfaceMethodFlags

public static final int AllowedInterfaceMethodFlags

Modifier masks.

See Also:

Constant Field Values

ImplicitInterfaceMethodFlags

public static final int ImplicitInterfaceMethodFlags

Modifier masks.

See Also:

Constant Field Values

MethodFlags

public static final int MethodFlags

Modifier masks.

See Also:

Constant Field Values

LocalVarFlags

public static final long LocalVarFlags

See Also:

Constant Field Values

modifierSets

private static java.util.Map<java.lang.Long,java.util.Set<Modifier>> modifierSets

Constructor Detail

Flags

private Flags()

Method Detail

toString

public static java.lang.String toString(long flags)

asFlagSet

public static java.util.EnumSet<Flags.Flag> asFlagSet(long mask)

asModifierSet

public static java.util.Set<Modifier> asModifierSet(long flags)

isStatic

public static boolean isStatic(Symbol symbol)

isEnum

public static boolean isEnum(Symbol symbol)

isConstant

public static boolean isConstant(Symbol.VarSymbol symbol)