org.eclipse.jdt.internal.compiler.impl.Constant Java Examples

public static Object getNegativeAnnotationMemberValue(MemberValuePair memberValuePair, Constant constant) {
	if (constant == null) {
		memberValuePair.valueKind = IMemberValuePair.K_UNKNOWN;
		return null;
	}
	switch (constant.typeID()) {
		case TypeIds.T_int :
			memberValuePair.valueKind = IMemberValuePair.K_INT;
			return new Integer(constant.intValue() * -1);
		case TypeIds.T_float :
			memberValuePair.valueKind = IMemberValuePair.K_FLOAT;
			return new Float(constant.floatValue() * -1.0f);
		case TypeIds.T_double :
			memberValuePair.valueKind = IMemberValuePair.K_DOUBLE;
			return new Double(constant.doubleValue() * -1.0);
		case TypeIds.T_long :
			memberValuePair.valueKind = IMemberValuePair.K_LONG;
			return new Long(constant.longValue() * -1L);
		default:
			memberValuePair.valueKind = IMemberValuePair.K_UNKNOWN;
			return null;
	}
}
 

public void manageSyntheticAccessIfNecessary(BlockScope currentScope, FlowInfo flowInfo, boolean isReadAccess) {
	if ((flowInfo.tagBits & FlowInfo.UNREACHABLE_OR_DEAD) != 0)	return;

	//If inlinable field, forget the access emulation, the code gen will directly target it
	if (this.constant != Constant.NotAConstant)
		return;

	if ((this.bits & Binding.FIELD) != 0) {
		FieldBinding fieldBinding = (FieldBinding) this.binding;
		FieldBinding codegenField = fieldBinding.original();
		if (((this.bits & ASTNode.DepthMASK) != 0)
			&& (codegenField.isPrivate() // private access
				|| (codegenField.isProtected() // implicit protected access
						&& codegenField.declaringClass.getPackage() != currentScope.enclosingSourceType().getPackage()))) {
			if (this.syntheticAccessors == null)
				this.syntheticAccessors = new MethodBinding[2];
			this.syntheticAccessors[isReadAccess ? SingleNameReference.READ : SingleNameReference.WRITE] =
			    ((SourceTypeBinding)currentScope.enclosingSourceType().
					enclosingTypeAt((this.bits & ASTNode.DepthMASK) >> ASTNode.DepthSHIFT)).addSyntheticMethod(codegenField, isReadAccess, false /*not super access*/);
			currentScope.problemReporter().needToEmulateFieldAccess(codegenField, this, isReadAccess);
			return;
		}
	}
}
 

/** Variant of isPolyExpression() to be used during type inference, when a resolution candidate exists. */
public boolean isPolyExpression(MethodBinding resolutionCandidate) {
	if (this.expressionContext != ASSIGNMENT_CONTEXT && this.expressionContext != INVOCATION_CONTEXT)
		return false;
	
	if (this.typeArguments != null && this.typeArguments.length > 0)
		return false;
	
	if (this.constant != Constant.NotAConstant)
		throw new UnsupportedOperationException("Unresolved MessageSend can't be queried if it is a polyexpression"); //$NON-NLS-1$
	
	if (resolutionCandidate != null) {
		if (resolutionCandidate instanceof ParameterizedGenericMethodBinding) {
			ParameterizedGenericMethodBinding pgmb = (ParameterizedGenericMethodBinding) resolutionCandidate;
			if (pgmb.inferredReturnType)
				return true; // if already determined
		} 
		if (resolutionCandidate.returnType != null) {
			// resolution may have prematurely instantiated the generic method, we need the original, though:
			MethodBinding candidateOriginal = resolutionCandidate.original();
			return candidateOriginal.returnType.mentionsAny(candidateOriginal.typeVariables(), -1);
		}
	}
	
	return false;
}
 

public TypeBinding resolveType(BlockScope scope) {
	// implicit this
	this.constant = Constant.NotAConstant;
	ReferenceBinding snippetType = scope.enclosingSourceType();
	MethodScope methodScope = scope.methodScope();
	if (!this.isImplicit && !checkAccess(scope, snippetType)) {
		return null;
	}

	this.delegateThis = scope.getField(snippetType, DELEGATE_THIS, this);
	if (this.delegateThis == null || !this.delegateThis.isValidBinding()) {
		// should not happen
		// if this happen we should report illegal access to this in a static context
		methodScope.problemReporter().errorThisSuperInStatic(this);
		return null;
	}
	return this.resolvedType = this.delegateThis.type;
}
 

public TypeBinding resolveType(BlockScope scope) {

		this.constant = Constant.NotAConstant;
		
		ReferenceBinding enclosingReceiverType = scope.enclosingReceiverType();
		if (!isImplicitThis() &&!checkAccess(scope, enclosingReceiverType)) {
			return null;
		}
		this.resolvedType = enclosingReceiverType;
		MethodScope methodScope = scope.namedMethodScope();
		if (methodScope != null) {
			MethodBinding method = methodScope.referenceMethodBinding();
			if (method != null && method.receiver != null && TypeBinding.equalsEquals(method.receiver, this.resolvedType))
				this.resolvedType = method.receiver;
		}
		return this.resolvedType;
	}
 

public void manageEnclosingInstanceAccessIfNecessary(BlockScope currentScope, FlowInfo flowInfo) {
	//If inlinable field, forget the access emulation, the code gen will directly target it
	if (((this.bits & ASTNode.DepthMASK) == 0 && (this.bits & ASTNode.IsCapturedOuterLocal) == 0) || (this.constant != Constant.NotAConstant)) {
		return;
	}
	if ((this.bits & ASTNode.RestrictiveFlagMASK) == Binding.LOCAL) {
		LocalVariableBinding localVariableBinding = (LocalVariableBinding) this.binding;
		if (localVariableBinding != null) {
			if ((localVariableBinding.tagBits & TagBits.NotInitialized) != 0) {
				// local was tagged as uninitialized
				return;
			}
			switch(localVariableBinding.useFlag) {
				case LocalVariableBinding.FAKE_USED :
				case LocalVariableBinding.USED :
					currentScope.emulateOuterAccess(localVariableBinding);
			}
		}
	}
}
 

public Constant optimizedBooleanConstant() {
	switch (this.resolvedType.id) {
		case T_boolean :
		case T_JavaLangBoolean :
			if (this.constant != Constant.NotAConstant) return this.constant;
			switch (this.bits & ASTNode.RestrictiveFlagMASK) {
				case Binding.FIELD : // reading a field
					if (this.otherBindings == null)
						return ((FieldBinding)this.binding).constant();
					//$FALL-THROUGH$
				case Binding.LOCAL : // reading a local variable
					return this.otherBindings[this.otherBindings.length-1].constant();
		}
	}
	return Constant.NotAConstant;
}
 

public void manageEnclosingInstanceAccessIfNecessary(BlockScope currentScope, FlowInfo flowInfo) {
	//If inlinable field, forget the access emulation, the code gen will directly target it
	if (((this.bits & ASTNode.DepthMASK) == 0 && (this.bits & ASTNode.IsCapturedOuterLocal) == 0) || (this.constant != Constant.NotAConstant)) {
		return;
	}
	if ((this.bits & ASTNode.RestrictiveFlagMASK) == Binding.LOCAL) {
		LocalVariableBinding localVariableBinding = (LocalVariableBinding) this.binding;
		if (localVariableBinding != null) {
			if ((localVariableBinding.tagBits & TagBits.NotInitialized) != 0) {
				// local was tagged as uninitialized
				return;
			}
			switch(localVariableBinding.useFlag) {
				case LocalVariableBinding.FAKE_USED :
				case LocalVariableBinding.USED :
					currentScope.emulateOuterAccess(localVariableBinding);
			}
		}
	}
}
 

Object resolveConstantExpressionValue(Expression expression) {
	org.eclipse.jdt.internal.compiler.ast.ASTNode node = (org.eclipse.jdt.internal.compiler.ast.ASTNode) this.newAstToOldAst.get(expression);
	if (node instanceof org.eclipse.jdt.internal.compiler.ast.Expression) {
		org.eclipse.jdt.internal.compiler.ast.Expression compilerExpression = (org.eclipse.jdt.internal.compiler.ast.Expression) node;
		Constant constant = compilerExpression.constant;
		if (constant != null && constant != Constant.NotAConstant) {
			switch (constant.typeID()) {
				case TypeIds.T_int : return new Integer(constant.intValue());
				case TypeIds.T_byte : return new Byte(constant.byteValue());
				case TypeIds.T_short : return new Short(constant.shortValue());
				case TypeIds.T_char : return new Character(constant.charValue());
				case TypeIds.T_float : return new Float(constant.floatValue());
				case TypeIds.T_double : return new Double(constant.doubleValue());
				case TypeIds.T_boolean : return constant.booleanValue() ? Boolean.TRUE : Boolean.FALSE;
				case TypeIds.T_long : return new Long(constant.longValue());
				case TypeIds.T_JavaLangString : return constant.stringValue();
			}
			return null;
		}
	}
	return null;
}
 

public TypeBinding resolveType(BlockScope scope) {
	this.constant = Constant.NotAConstant;
	TypeBinding expressionType = this.expression.resolveType(scope);
	TypeBinding checkedType = this.type.resolveType(scope, true /* check bounds*/);
	if (expressionType != null && checkedType != null && checkedType.hasNullTypeAnnotations()) {
		// don't complain if the entire operation is redundant anyway
		if (!expressionType.isCompatibleWith(checkedType) || NullAnnotationMatching.analyse(checkedType, expressionType, -1).isAnyMismatch())
			scope.problemReporter().nullAnnotationUnsupportedLocation(this.type);
	}
	if (expressionType == null || checkedType == null)
		return null;

	if (!checkedType.isReifiable()) {
		scope.problemReporter().illegalInstanceOfGenericType(checkedType, this);
	} else if (checkedType.isValidBinding()) {
		// if not a valid binding, an error has already been reported for unresolved type
		if ((expressionType != TypeBinding.NULL && expressionType.isBaseType()) // disallow autoboxing
				|| !checkCastTypesCompatibility(scope, checkedType, expressionType, null)) {
			scope.problemReporter().notCompatibleTypesError(this, expressionType, checkedType);
		}
	}
	return this.resolvedType = TypeBinding.BOOLEAN;
}
 

public TypeBinding resolveType(BlockScope scope) {
	this.constant = Constant.NotAConstant;
	if (this.receiver instanceof CastExpression	// no cast check for ((type[])null)[0]
			&& ((CastExpression)this.receiver).innermostCastedExpression() instanceof NullLiteral) {
		this.receiver.bits |= ASTNode.DisableUnnecessaryCastCheck; // will check later on
	}
	TypeBinding arrayType = this.receiver.resolveType(scope);
	if (arrayType != null) {
		this.receiver.computeConversion(scope, arrayType, arrayType);
		if (arrayType.isArrayType()) {
			TypeBinding elementType = ((ArrayBinding) arrayType).elementsType();
			this.resolvedType = ((this.bits & ASTNode.IsStrictlyAssigned) == 0) ? elementType.capture(scope, this.sourceEnd) : elementType;
		} else {
			scope.problemReporter().referenceMustBeArrayTypeAt(arrayType, this);
		}
	}
	TypeBinding positionType = this.position.resolveTypeExpecting(scope, TypeBinding.INT);
	if (positionType != null) {
		this.position.computeConversion(scope, TypeBinding.INT, positionType);
	}
	return this.resolvedType;
}
 

public TypeBinding resolveType(BlockScope scope) {
	this.constant = Constant.NotAConstant;
	if (this.arguments != null) {
		int argsLength = this.arguments.length;
		for (int a = argsLength; --a >= 0;)
			this.arguments[a].resolveType(scope);
	}

	if (this.receiver.isImplicitThis())
		throw new CompletionNodeFound(this, null, scope);

	this.actualReceiverType = this.receiver.resolveType(scope);
	if (this.actualReceiverType == null || this.actualReceiverType.isBaseType())
		throw new CompletionNodeFound();

	if (this.actualReceiverType.isArrayType())
		this.actualReceiverType = scope.getJavaLangObject();
	throw new CompletionNodeFound(this, this.actualReceiverType, scope);
}
 

private void updateAnnotationValue(Object object) {
  // @see org.eclipse.jdt.internal.compiler.env.IBinaryElementValuePair.getValue()
  // @see org.eclipse.jdt.internal.compiler.classfmt.AnnotationInfo.decodeDefaultValue()
  if (object instanceof ClassSignature) {
    updateChars(((ClassSignature) object).getTypeName());
  } else if (object instanceof Constant) {
    updateConstant((Constant) object);
  } else if (object instanceof EnumConstantSignature) {
    updateChars(((EnumConstantSignature) object).getTypeName());
    updateChars(((EnumConstantSignature) object).getEnumConstantName());
  } else if (object instanceof IBinaryAnnotation) {
    updateAnnotation((IBinaryAnnotation) object);
  } else {
    throw new IllegalArgumentException("Unsupported annotation value " + object.toString());
  }
}
 

/**
 * Returns an object which can be used to identify identical JSR sequence targets
 * (see TryStatement subroutine codegen)
 * or <code>null</null> if not reusable
 */
public Object reusableJSRTarget() {
	if (this.constant != Constant.NotAConstant && (this.implicitConversion & TypeIds.BOXING) == 0) {
		return this.constant;
	}
	return null;
}
 

private void updateConstant(Constant constant) {
  updateInt(constant.typeID());
  updateString(constant.getClass().getName());
  switch (constant.typeID()) {
    case TypeIds.T_int:
      updateInt(constant.intValue());
      break;
    case TypeIds.T_byte:
      updateByte(constant.byteValue());
      break;
    case TypeIds.T_short:
      updateShort(constant.shortValue());
      break;
    case TypeIds.T_char:
      updateChar(constant.charValue());
      break;
    case TypeIds.T_long:
      updateLong(constant.longValue());
      break;
    case TypeIds.T_float:
      updateFloat(constant.floatValue());
      break;
    case TypeIds.T_double:
      updateDouble(constant.doubleValue());
      break;
    case TypeIds.T_boolean:
      updateBoolean(constant.booleanValue());
      break;
    case TypeIds.T_JavaLangString:
      updateString(constant.stringValue());
      break;
    default:
      throw new IllegalArgumentException("Unexpected constant typeID=" + constant.typeID());
  }
}
 

final public boolean isDefinitelyNonNull(LocalVariableBinding local) {
	// do not want to complain in unreachable code
	if ((this.tagBits & UNREACHABLE) != 0 ||
			(this.tagBits & NULL_FLAG_MASK) == 0) {
		return false;
	}
	if ((local.type.tagBits & TagBits.IsBaseType) != 0 ||
			local.constant() != Constant.NotAConstant) { // String instances
		return true;
	}
	int position = local.id + this.maxFieldCount;
	if (position < BitCacheSize) { // use bits
		return ((this.nullBit1 & this.nullBit3 & (~this.nullBit2 | this.nullBit4))
			    & (1L << position)) != 0;
	}
	// use extra vector
	if (this.extra == null) {
		return false; // if vector not yet allocated, then not initialized
	}
	int vectorIndex;
	if ((vectorIndex = (position / BitCacheSize) - 1)
			>= this.extra[2].length) {
		return false; // if not enough room in vector, then not initialized
	}
	return ((this.extra[2][vectorIndex] & this.extra[4][vectorIndex]
		        & (~this.extra[3][vectorIndex] | this.extra[5][vectorIndex]))
		    & (1L << (position % BitCacheSize))) != 0;
}
 

public FieldBinding addSyntheticFieldForClassLiteral(TypeBinding targetType, BlockScope blockScope) {
	
	if (!isPrototype()) throw new IllegalStateException();
	
	if (this.synthetics == null)
		this.synthetics = new HashMap[MAX_SYNTHETICS];
	if (this.synthetics[SourceTypeBinding.CLASS_LITERAL_EMUL] == null)
		this.synthetics[SourceTypeBinding.CLASS_LITERAL_EMUL] = new HashMap(5);

	// use a different table than FIELDS, given there might be a collision between emulation of X.this$0 and X.class.
	FieldBinding synthField = (FieldBinding) this.synthetics[SourceTypeBinding.CLASS_LITERAL_EMUL].get(targetType);
	if (synthField == null) {
		synthField = new SyntheticFieldBinding(
			CharOperation.concat(
				TypeConstants.SYNTHETIC_CLASS,
				String.valueOf(this.synthetics[SourceTypeBinding.CLASS_LITERAL_EMUL].size()).toCharArray()),
			blockScope.getJavaLangClass(),
			ClassFileConstants.AccDefault | ClassFileConstants.AccStatic | ClassFileConstants.AccSynthetic,
			this,
			Constant.NotAConstant,
			this.synthetics[SourceTypeBinding.CLASS_LITERAL_EMUL].size());
		this.synthetics[SourceTypeBinding.CLASS_LITERAL_EMUL].put(targetType, synthField);
	}
	// ensure there is not already such a field defined by the user
	FieldBinding existingField;
	if ((existingField = getField(synthField.name, true /*resolve*/)) != null) {
		TypeDeclaration typeDecl = blockScope.referenceType();
		FieldDeclaration[] typeDeclarationFields = typeDecl.fields;
		int max = typeDeclarationFields == null ? 0 : typeDeclarationFields.length;
		for (int i = 0; i < max; i++) {
			FieldDeclaration fieldDecl = typeDeclarationFields[i];
			if (fieldDecl.binding == existingField) {
				blockScope.problemReporter().duplicateFieldInType(this, fieldDecl);
				break;
			}
		}
	}
	return synthField;
}
 

public boolean isConstantValueOfTypeAssignableToType(TypeBinding constantType, TypeBinding targetType) {

	if (this.constant == Constant.NotAConstant)
		return false;
	if (TypeBinding.equalsEquals(constantType, targetType))
		return true;
	//No free assignment conversion from anything but to integral ones.
	if (BaseTypeBinding.isWidening(TypeIds.T_int, constantType.id)
			&& (BaseTypeBinding.isNarrowing(targetType.id, TypeIds.T_int))) {
		//use current explicit conversion in order to get some new value to compare with current one
		return isConstantValueRepresentable(this.constant, constantType.id, targetType.id);
	}
	return false;
}
 

@Override
public Object getConstantValue() {
	VariableBinding variableBinding = (VariableBinding) _binding;
	Constant constant = variableBinding.constant();
	if (constant == null || constant == Constant.NotAConstant) return null;
	TypeBinding type = variableBinding.type;
	switch (type.id) {
		case TypeIds.T_boolean:
			return constant.booleanValue();
		case TypeIds.T_byte:
			return constant.byteValue();
		case TypeIds.T_char:
			return constant.charValue();
		case TypeIds.T_double:
			return constant.doubleValue();
		case TypeIds.T_float:
			return constant.floatValue();
		case TypeIds.T_int:
			return constant.intValue();
		case TypeIds.T_JavaLangString:
			return constant.stringValue();
		case TypeIds.T_long:
			return constant.longValue();
		case TypeIds.T_short:
			return constant.shortValue();
	}
	return null;
}
 

public void resolve(BlockScope scope) {
	if (this.expression != null) {
		if (this.expression.resolveType(scope) != null) {
			TypeBinding javaLangClass = scope.getJavaLangClass();
			if (!javaLangClass.isValidBinding()) {
				scope.problemReporter().codeSnippetMissingClass("java.lang.Class", this.sourceStart, this.sourceEnd); //$NON-NLS-1$
				return;
			}
			TypeBinding javaLangObject = scope.getJavaLangObject();
			if (!javaLangObject.isValidBinding()) {
				scope.problemReporter().codeSnippetMissingClass("java.lang.Object", this.sourceStart, this.sourceEnd); //$NON-NLS-1$
				return;
			}
			TypeBinding[] argumentTypes = new TypeBinding[] {javaLangObject, javaLangClass};
			this.setResultMethod = scope.getImplicitMethod(SETRESULT_SELECTOR, argumentTypes, this);
			if (!this.setResultMethod.isValidBinding()) {
				scope.problemReporter().codeSnippetMissingMethod(ROOT_FULL_CLASS_NAME, new String(SETRESULT_SELECTOR), new String(SETRESULT_ARGUMENTS), this.sourceStart, this.sourceEnd);
				return;
			}
			// in constant case, the implicit conversion cannot be left uninitialized
			if (this.expression.constant != Constant.NotAConstant) {
				// fake 'no implicit conversion' (the return type is always void)
				this.expression.implicitConversion = this.expression.constant.typeID() << 4;
			}
		}
	}
}
 

final public boolean isPotentiallyAssigned(LocalVariableBinding local) {
	// final constants are inlined, and thus considered as always initialized
	if (local.constant() != Constant.NotAConstant) {
		return true;
	}
	return isPotentiallyAssigned(local.id + this.maxFieldCount);
}
 

public VariableBinding(char[] name, TypeBinding type, int modifiers, Constant constant) {
	this.name = name;
	this.type = type;
	this.modifiers = modifiers;
	this.constant = constant;
	if (type != null) {
		this.tagBits |= (type.tagBits & TagBits.HasMissingType);
	}
}
 

public void resolve(BlockScope upperScope) {
	// special scope for secret locals optimization.
	this.scope = new BlockScope(upperScope);
	TypeBinding type = this.expression.resolveType(this.scope);
	if (type == null)
		return;
	switch (type.id) {
		case T_boolean :
		case T_char :
		case T_float :
		case T_double :
		case T_byte :
		case T_short :
		case T_int :
		case T_long :
			this.scope.problemReporter().invalidTypeToSynchronize(this.expression, type);
			break;
		case T_void :
			this.scope.problemReporter().illegalVoidExpression(this.expression);
			break;
		case T_null :
			this.scope.problemReporter().invalidNullToSynchronize(this.expression);
			break;
	}
	//continue even on errors in order to have the TC done into the statements
	this.synchroVariable = new LocalVariableBinding(SecretLocalDeclarationName, type, ClassFileConstants.AccDefault, false);
	this.scope.addLocalVariable(this.synchroVariable);
	this.synchroVariable.setConstant(Constant.NotAConstant); // not inlinable
	this.expression.computeConversion(this.scope, type, type);
	this.block.resolveUsing(this.scope);
}
 

private TypeBinding internalResolveType(Scope scope, boolean checkBounds) {
	// handle the error here
	this.constant = Constant.NotAConstant;
	if (this.resolvedType != null) // is a shared type reference which was already resolved
		return this.resolvedType.isValidBinding() ? this.resolvedType : this.resolvedType.closestMatch(); // already reported error

	TypeBinding type = this.resolvedType = getTypeBinding(scope);
	// End resolution when getTypeBinding(scope) returns null. This may happen in
	// certain circumstances, typically when an illegal access is done on a type
	// variable (see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=204749)
	if (type == null) return null;
	if (!type.isValidBinding()) {
		Binding binding = scope.getTypeOrPackage(this.tokens);
		if (binding instanceof PackageBinding) {
			this.packageBinding = (PackageBinding) binding;
			// Valid package references are allowed in Javadoc (https://bugs.eclipse.org/bugs/show_bug.cgi?id=281609)
		} else {
			reportInvalidType(scope);
		}
		return null;
	}
	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=209936
	// raw convert all enclosing types when dealing with Javadoc references
	if (type.isGenericType() || type.isParameterizedType()) {
		this.resolvedType = scope.environment().convertToRawType(type, true /*force the conversion of enclosing types*/);
	}
	return this.resolvedType;
}
 

public Constant constant() {
	Constant fieldConstant = this.constant;
	if (fieldConstant == null) {
		if (isFinal()) {
			//The field has not been yet type checked.
			//It also means that the field is not coming from a class that
			//has already been compiled. It can only be from a class within
			//compilation units to process. Thus the field is NOT from a BinaryTypeBinbing
			FieldBinding originalField = original();
			if (originalField.declaringClass instanceof SourceTypeBinding) {
				SourceTypeBinding sourceType = (SourceTypeBinding) originalField.declaringClass;
				if (sourceType.scope != null) {
					TypeDeclaration typeDecl = sourceType.scope.referenceContext;
					FieldDeclaration fieldDecl = typeDecl.declarationOf(originalField);
					MethodScope initScope = originalField.isStatic() ? typeDecl.staticInitializerScope : typeDecl.initializerScope;
					boolean old = initScope.insideTypeAnnotation;
					try {
						initScope.insideTypeAnnotation = false;
						fieldDecl.resolve(initScope); //side effect on binding
					} finally {
						initScope.insideTypeAnnotation = old;
					}
					fieldConstant = originalField.constant == null ? Constant.NotAConstant : originalField.constant;
				} else {
					fieldConstant = Constant.NotAConstant; // shouldn't occur per construction (paranoid null check)
				}
			} else {
				fieldConstant = Constant.NotAConstant; // shouldn't occur per construction (paranoid null check)
			}
		} else {
			fieldConstant = Constant.NotAConstant;
		}
		this.constant = fieldConstant;
	}
	return fieldConstant;
}
 

public Constant optimizedBooleanConstant() {
	switch (this.resolvedType.id) {
		case T_boolean :
		case T_JavaLangBoolean :
			return this.constant != Constant.NotAConstant ? this.constant : this.binding.constant();
		default :
			return Constant.NotAConstant;
	}
}
 

public TypeBinding resolveType(BlockScope scope) {

		this.constant = Constant.NotAConstant;
		ReferenceBinding enclosingReceiverType = scope.enclosingReceiverType();
		if (!checkAccess(scope, enclosingReceiverType))
			return null;
		if (enclosingReceiverType.id == T_JavaLangObject) {
			scope.problemReporter().cannotUseSuperInJavaLangObject(this);
			return null;
		}
		return this.resolvedType = enclosingReceiverType.superclass();
	}
 

/**
 * Cast expression code generation
 *
 * @param currentScope org.eclipse.jdt.internal.compiler.lookup.BlockScope
 * @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
 * @param valueRequired boolean
 */
public void generateCode(BlockScope currentScope, CodeStream codeStream, boolean valueRequired) {
	int pc = codeStream.position;
	boolean annotatedCast = (this.type.bits & ASTNode.HasTypeAnnotations) != 0;
	boolean needRuntimeCheckcast = (this.bits & ASTNode.GenerateCheckcast) != 0;
	if (this.constant != Constant.NotAConstant) {
		if (valueRequired || needRuntimeCheckcast || annotatedCast) { // Added for: 1F1W9IG: IVJCOM:WINNT - Compiler omits casting check
			codeStream.generateConstant(this.constant, this.implicitConversion);
			if (needRuntimeCheckcast || annotatedCast) {
				codeStream.checkcast(this.type, this.resolvedType);
			}
			if (!valueRequired) {
				// the resolveType cannot be double or long
				codeStream.pop();
			}
		}
		codeStream.recordPositionsFrom(pc, this.sourceStart);
		return;
	}
	this.expression.generateCode(currentScope, codeStream, annotatedCast || valueRequired || needRuntimeCheckcast);
	if (annotatedCast || (needRuntimeCheckcast && TypeBinding.notEquals(this.expression.postConversionType(currentScope), this.resolvedType.erasure()))) { // no need to issue a checkcast if already done as genericCast
		codeStream.checkcast(this.type, this.resolvedType);
	}
	if (valueRequired) {
		codeStream.generateImplicitConversion(this.implicitConversion);
	} else if (needRuntimeCheckcast) {
		boolean isUnboxing = (this.implicitConversion & TypeIds.UNBOXING) != 0;
		switch (isUnboxing ? postConversionType(currentScope).id : this.resolvedType.id) {
			case T_long :
			case T_double :
				codeStream.pop2();
				break;
			default :
				codeStream.pop();
				break;
		}
	}
	codeStream.recordPositionsFrom(pc, this.sourceStart);
}
 

/**
 * @see org.eclipse.jdt.internal.compiler.ast.Expression#optimizedBooleanConstant()
 */
public Constant optimizedBooleanConstant() {
	switch(this.resolvedType.id) {
		case T_boolean :
		case T_JavaLangBoolean :
			return this.expression.optimizedBooleanConstant();
	}
	return Constant.NotAConstant;
}
 

public void resolve (BlockScope scope) {
	// only need the binding, which is used as reference in FlowInfo methods.
	this.binding = new LocalVariableBinding(
			this.name,
			scope.getJavaLangObject(),  // dummy, just needs to be a reference type
			0,
			false);
	this.binding.closeTracker = this;
	this.binding.declaringScope = scope;
	this.binding.setConstant(Constant.NotAConstant);
	this.binding.useFlag = LocalVariableBinding.USED;
	// use a free slot without assigning it:
	this.binding.id = scope.registerTrackingVariable(this);
}