< prev index next > src/jdk.compiler/share/classes/com/sun/tools/javac/code/Flags.java
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// Because the following access flags are overloaded with other
// bit positions, we translate them when reading and writing class
// files into unique bits positions: ACC_SYNTHETIC <-> SYNTHETIC,
// for example.
- public static final int ACC_SUPER = 0x0020;
+ public static final int ACC_IDENTITY = 0x0020;
public static final int ACC_BRIDGE = 0x0040;
public static final int ACC_VARARGS = 0x0080;
+ public static final int ACC_STRICT = 0x0800;
public static final int ACC_MODULE = 0x8000;
/*****************************************
* Internal compiler flags (no bits in the lower 16).
*****************************************/
/** Flag is set for a variable symbol if the variable's definition
* has an initializer part.
*/
public static final int HASINIT = 1<<18;
+ /** Flag is set for a class or interface whose instances have identity
+ * i.e. any concrete class not declared with the modifier `value'
+ * (a) abstract class not declared `value'
+ * (b) older class files with ACC_SUPER bit set
+ */
+ public static final int IDENTITY_TYPE = 1<<19;
+
/** Class is an implicitly declared top level class.
*/
- public static final int IMPLICIT_CLASS = 1<<19;
+ public static final int IMPLICIT_CLASS = 1<<23;
/** Flag is set for compiler-generated anonymous method symbols
* that `own' an initializer block.
*/
public static final int BLOCK = 1<<20;
+ /** Marks a type as a value class */
+ public static final int VALUE_CLASS = 1<<20;
+
/** Flag is set for ClassSymbols that are being compiled from source.
*/
public static final int FROM_SOURCE = 1<<21; //ClassSymbols
/** Flag is set for nested classes that do not access instance members
/**
* Flag to indicate that the class/interface was declared with the non-sealed modifier.
*/
public static final long NON_SEALED = 1L<<63; // ClassSymbols
+ /**
+ * Flag to indicate that a field is strict
+ */
+ public static final long STRICT = 1L<<51; // VarSymbols
+
/**
* Describe modifier flags as they might appear in source code, i.e.,
* separated by spaces and in the order suggested by JLS 8.1.1.
*/
public static String toSource(long flags) {
/** Modifier masks.
*/
public static final int
AccessFlags = PUBLIC | PROTECTED | PRIVATE,
- LocalClassFlags = FINAL | ABSTRACT | STRICTFP | ENUM | SYNTHETIC,
- StaticLocalFlags = LocalClassFlags | STATIC | INTERFACE,
+ LocalClassFlags = FINAL | ABSTRACT | STRICTFP | ENUM | SYNTHETIC | IDENTITY_TYPE,
+ StaticLocalClassFlags = LocalClassFlags | STATIC | INTERFACE,
MemberClassFlags = LocalClassFlags | INTERFACE | AccessFlags,
MemberStaticClassFlags = MemberClassFlags | STATIC,
ClassFlags = LocalClassFlags | INTERFACE | PUBLIC | ANNOTATION,
InterfaceVarFlags = FINAL | STATIC | PUBLIC,
VarFlags = AccessFlags | FINAL | STATIC |
MethodFlags = AccessFlags | ABSTRACT | STATIC | NATIVE |
SYNCHRONIZED | FINAL | STRICTFP,
RecordMethodFlags = AccessFlags | ABSTRACT | STATIC |
SYNCHRONIZED | FINAL | STRICTFP;
public static final long
- ExtendedStandardFlags = (long)StandardFlags | DEFAULT | SEALED | NON_SEALED,
- ExtendedMemberClassFlags = (long)MemberClassFlags | SEALED | NON_SEALED,
- ExtendedMemberStaticClassFlags = (long) MemberStaticClassFlags | SEALED | NON_SEALED,
- ExtendedClassFlags = (long)ClassFlags | SEALED | NON_SEALED,
- ModifierFlags = ((long)StandardFlags & ~INTERFACE) | DEFAULT | SEALED | NON_SEALED,
+ ExtendedStandardFlags = (long)StandardFlags | DEFAULT | SEALED | NON_SEALED | VALUE_CLASS,
+ ExtendedMemberClassFlags = (long)MemberClassFlags | SEALED | NON_SEALED | VALUE_CLASS,
+ ExtendedMemberStaticClassFlags = (long) MemberStaticClassFlags | SEALED | NON_SEALED | VALUE_CLASS,
+ ExtendedClassFlags = (long)ClassFlags | SEALED | NON_SEALED | VALUE_CLASS,
+ ExtendedLocalClassFlags = (long) LocalClassFlags | VALUE_CLASS,
+ ExtendedStaticLocalClassFlags = (long) StaticLocalClassFlags | VALUE_CLASS,
+ ExtendedVarFlags = (long) VarFlags | STRICT,
+ ModifierFlags = ((long)StandardFlags & ~INTERFACE) | DEFAULT | SEALED | NON_SEALED | VALUE_CLASS,
InterfaceMethodMask = ABSTRACT | PRIVATE | STATIC | PUBLIC | STRICTFP | DEFAULT,
AnnotationTypeElementMask = ABSTRACT | PUBLIC,
LocalVarFlags = FINAL | PARAMETER,
ReceiverParamFlags = PARAMETER;
if (0 != (flags & SYNCHRONIZED))
modifiers.add(Modifier.SYNCHRONIZED);
if (0 != (flags & NATIVE)) modifiers.add(Modifier.NATIVE);
if (0 != (flags & STRICTFP)) modifiers.add(Modifier.STRICTFP);
if (0 != (flags & DEFAULT)) modifiers.add(Modifier.DEFAULT);
+ if (0 != (flags & VALUE_CLASS)) modifiers.add(Modifier.VALUE);
modifiers = Collections.unmodifiableSet(modifiers);
modifierSets.put(flags, modifiers);
}
return modifiers;
}
public static boolean isConstant(Symbol.VarSymbol symbol) {
return symbol.getConstValue() != null;
}
-
public enum Flag {
PUBLIC(Flags.PUBLIC),
PRIVATE(Flags.PRIVATE),
PROTECTED(Flags.PROTECTED),
STATIC(Flags.STATIC),
BRIDGE(Flags.BRIDGE),
SYNTHETIC(Flags.SYNTHETIC),
ANNOTATION(Flags.ANNOTATION),
DEPRECATED(Flags.DEPRECATED),
HASINIT(Flags.HASINIT),
+ IDENTITY_TYPE(Flags.IDENTITY_TYPE) {
+ @Override
+ public String toString() {
+ return "identity";
+ }
+ },
+ VALUE(Flags.VALUE_CLASS),
IMPLICIT_CLASS(Flags.IMPLICIT_CLASS),
BLOCK(Flags.BLOCK),
FROM_SOURCE(Flags.FROM_SOURCE),
ENUM(Flags.ENUM),
MANDATED(Flags.MANDATED),
NON_SEALED(Flags.NON_SEALED) {
@Override
public String toString() {
return "non-sealed";
}
- };
+ },
+ STRICT(Flags.STRICT);
Flag(long flag) {
this.value = flag;
this.lowercaseName = StringUtils.toLowerCase(name());
}
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