Java TypeBinding.equalsEquals方法代码示例

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
public TypeBinding resolveTypeExpecting(BlockScope scope, TypeBinding expectedType) {
	setExpectedType(expectedType); // needed in case of generic method invocation
	TypeBinding expressionType = this.resolveType(scope);
	if (expressionType == null) return null;
	if (TypeBinding.equalsEquals(expressionType, expectedType)) return expressionType;

	if (!expressionType.isCompatibleWith(expectedType)) {
		if (scope.isBoxingCompatibleWith(expressionType, expectedType)) {
			computeConversion(scope, expectedType, expressionType);
		} else {
			scope.problemReporter().typeMismatchError(expressionType, expectedType, this, null);
			return null;
		}
	}
	return expressionType;
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
@Override
public boolean hides(Element hidden)
{
	if (!(hidden instanceof TypeElementImpl)) {
		return false;
	}
	ReferenceBinding hiddenBinding = (ReferenceBinding)((TypeElementImpl)hidden)._binding;
	if (hiddenBinding.isPrivate()) {
		return false;
	}
	ReferenceBinding hiderBinding = (ReferenceBinding)_binding;
	if (TypeBinding.equalsEquals(hiddenBinding, hiderBinding)) {
		return false;
	}
	if (!hiddenBinding.isMemberType() || !hiderBinding.isMemberType()) {
		return false;
	}
	if (!CharOperation.equals(hiddenBinding.sourceName, hiderBinding.sourceName)) {
		return false;
	}
	return null != hiderBinding.enclosingType().findSuperTypeOriginatingFrom(hiddenBinding.enclosingType()); 
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
private void removeCaughtException(ReferenceBinding caughtException) {
	Object[] exceptions = this.thrownExceptions.values;
	for (int i = 0; i < exceptions.length; i++) {
		ReferenceBinding exception = (ReferenceBinding)exceptions[i];
		if (exception != null) {
			if (TypeBinding.equalsEquals(exception, caughtException)) {
				this.thrownExceptions.remove(exception);
			} else if (caughtException.isSuperclassOf(exception)) {
				// catching the sub-exception when super has been caught already will give an error
				// so remove it from thrown list and lower the relevance for cases when it is found
				// from searchAllTypes(..)
				this.thrownExceptions.remove(exception);
				this.discouragedExceptions.add(exception);
			}
		}
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
/**
 * Check and/or redirect the field access to the delegate receiver if any
 */
public TypeBinding checkFieldAccess(BlockScope scope) {
	FieldBinding fieldBinding = (FieldBinding) this.binding;
	MethodScope methodScope = scope.methodScope();
	TypeBinding declaringClass = fieldBinding.original().declaringClass;
	// check for forward references
	if ((this.indexOfFirstFieldBinding == 1 || declaringClass.isEnum())
			&& TypeBinding.equalsEquals(methodScope.enclosingSourceType(), declaringClass)
			&& methodScope.lastVisibleFieldID >= 0
			&& fieldBinding.id >= methodScope.lastVisibleFieldID
			&& (!fieldBinding.isStatic() || methodScope.isStatic)) {
		scope.problemReporter().forwardReference(this, this.indexOfFirstFieldBinding-1, fieldBinding);
	}
	this.bits &= ~ASTNode.RestrictiveFlagMASK; // clear bits
	this.bits |= Binding.FIELD;
	return getOtherFieldBindings(scope);
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
public void hierarchyCircularity(TypeVariableBinding type, ReferenceBinding superType, TypeReference reference) {
	int start = 0;
	int end = 0;

	start = reference.sourceStart;
	end = reference.sourceEnd;

	if (TypeBinding.equalsEquals(type, superType))
		this.handle(
			IProblem.HierarchyCircularitySelfReference,
			new String[] {new String(type.readableName()) },
			new String[] {new String(type.shortReadableName()) },
			start,
			end);
	else
		this.handle(
			IProblem.HierarchyCircularity,
			new String[] {new String(type.readableName()), new String(superType.readableName())},
			new String[] {new String(type.shortReadableName()), new String(superType.shortReadableName())},
			start,
			end);
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
public FlowInfo getInitsForFinalBlankInitializationCheck(TypeBinding declaringType, FlowInfo flowInfo) {
	FlowContext current = this;
	FlowInfo inits = flowInfo;
	do {
		if (current instanceof InitializationFlowContext) {
			InitializationFlowContext initializationContext = (InitializationFlowContext) current;
			if (TypeBinding.equalsEquals(((TypeDeclaration)initializationContext.associatedNode).binding, declaringType)) {
				return inits;
			}
			inits = initializationContext.initsBeforeContext;
			current = initializationContext.initializationParent;
		} else if (current instanceof ExceptionHandlingFlowContext) {
			ExceptionHandlingFlowContext exceptionContext = (ExceptionHandlingFlowContext) current;
			current = exceptionContext.initializationParent == null ? exceptionContext.getLocalParent() : exceptionContext.initializationParent;
		} else {
			current = current.getLocalParent();
		}
	} while (current != null);
	// not found
	return null;
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
/**
 * Casting an enclosing instance will considered as useful if removing it would actually bind to a different type
 */
public static void checkNeedForEnclosingInstanceCast(BlockScope scope, Expression enclosingInstance, TypeBinding enclosingInstanceType, TypeBinding memberType) {
	if (scope.compilerOptions().getSeverity(CompilerOptions.UnnecessaryTypeCheck) == ProblemSeverities.Ignore) return;

	TypeBinding castedExpressionType = ((CastExpression)enclosingInstance).expression.resolvedType;
	if (castedExpressionType == null) return; // cannot do better
	// obvious identity cast
	if (TypeBinding.equalsEquals(castedExpressionType, enclosingInstanceType)) {
		scope.problemReporter().unnecessaryCast((CastExpression)enclosingInstance);
	} else if (castedExpressionType == TypeBinding.NULL){
		return; // tolerate null enclosing instance cast
	} else {
		TypeBinding alternateEnclosingInstanceType = castedExpressionType;
		if (castedExpressionType.isBaseType() || castedExpressionType.isArrayType()) return; // error case
		if (TypeBinding.equalsEquals(memberType, scope.getMemberType(memberType.sourceName(), (ReferenceBinding) alternateEnclosingInstanceType))) {
			scope.problemReporter().unnecessaryCast((CastExpression)enclosingInstance);
		}
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
public void annotationCircularity(TypeBinding sourceType, TypeBinding otherType, TypeReference reference) {
	if (TypeBinding.equalsEquals(sourceType, otherType))
		this.handle(
			IProblem.AnnotationCircularitySelfReference,
			new String[] {new String(sourceType.readableName())},
			new String[] {new String(sourceType.shortReadableName())},
			reference.sourceStart,
			reference.sourceEnd);
	else
		this.handle(
			IProblem.AnnotationCircularity,
			new String[] {new String(sourceType.readableName()), new String(otherType.readableName())},
			new String[] {new String(sourceType.shortReadableName()), new String(otherType.shortReadableName())},
			reference.sourceStart,
			reference.sourceEnd);
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
private static int sortSuper(ReferenceBinding superclass,
					  		 ReferenceBinding[] input,
					  		 ReferenceBinding[] output, int o)
{
	if (superclass.id != TypeIds.T_JavaLangObject) {
		// search superclass within input:
		int j = 0;
		for(j=0; j<input.length; j++)
			if (TypeBinding.equalsEquals(input[j], superclass))
				break;
		if (j < input.length)
			// depth first traversal:
			o = sort(input, j, output, o);
		// otherwise assume super was already transferred.
	}
	return o;
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
private MethodBinding findNonDefaultAbstractMethod(MethodBinding methodBinding) {

		ReferenceBinding[] itsInterfaces = methodBinding.declaringClass.superInterfaces();
		if (itsInterfaces != Binding.NO_SUPERINTERFACES) {
			ReferenceBinding[] interfacesToVisit = itsInterfaces;
			int nextPosition = interfacesToVisit.length;

			for (int i = 0; i < nextPosition; i++) {
				ReferenceBinding currentType = interfacesToVisit[i];
				MethodBinding[] methods = currentType.getMethods(methodBinding.selector);
				if(methods != null) {
					for (int k = 0; k < methods.length; k++) {
						if(methodBinding.areParametersEqual(methods[k]))
							return methods[k];
					}
				}

				if ((itsInterfaces = currentType.superInterfaces()) != Binding.NO_SUPERINTERFACES) {
					int itsLength = itsInterfaces.length;
					if (nextPosition + itsLength >= interfacesToVisit.length)
						System.arraycopy(interfacesToVisit, 0, interfacesToVisit = new ReferenceBinding[nextPosition + itsLength + 5], 0, nextPosition);
					nextInterface : for (int a = 0; a < itsLength; a++) {
						ReferenceBinding next = itsInterfaces[a];
						for (int b = 0; b < nextPosition; b++)
							if (TypeBinding.equalsEquals(next, interfacesToVisit[b])) continue nextInterface;
						interfacesToVisit[nextPosition++] = next;
					}
				}
			}
		}
		return methodBinding;
	}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
public void unsafeReturnTypeOverride(MethodBinding currentMethod, MethodBinding inheritedMethod, SourceTypeBinding type) {
	if (this.options.sourceLevel < ClassFileConstants.JDK1_5) {
		return;
	}
	int severity = computeSeverity(IProblem.UnsafeReturnTypeOverride);
	if (severity == ProblemSeverities.Ignore) return;
	int start = type.sourceStart();
	int end = type.sourceEnd();
	if (TypeBinding.equalsEquals(currentMethod.declaringClass, type)) {
		ASTNode location = ((MethodDeclaration) currentMethod.sourceMethod()).returnType;
		start = location.sourceStart();
		end = location.sourceEnd();
	}
	this.handle(
			IProblem.UnsafeReturnTypeOverride,
			new String[] {
				new String(currentMethod.returnType.readableName()),
				new String(currentMethod.selector),
				typesAsString(currentMethod.original(), false),
				new String(currentMethod.declaringClass.readableName()),
				new String(inheritedMethod.returnType.readableName()),
				new String(inheritedMethod.declaringClass.readableName()),
				//new String(inheritedMethod.returnType.erasure().readableName()),
			 },
			new String[] {
				new String(currentMethod.returnType.shortReadableName()),
				new String(currentMethod.selector),
				typesAsString(currentMethod.original(), true),
				new String(currentMethod.declaringClass.shortReadableName()),
				new String(inheritedMethod.returnType.shortReadableName()),
				new String(inheritedMethod.declaringClass.shortReadableName()),
				//new String(inheritedMethod.returnType.erasure().shortReadableName()),
			 },
			severity,
			start,
			end);
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
private String parameterBoundAsString(TypeVariableBinding typeVariable, boolean makeShort) {
    StringBuffer nameBuffer = new StringBuffer(10);
    if (TypeBinding.equalsEquals(typeVariable.firstBound, typeVariable.superclass)) {
        nameBuffer.append(makeShort ? typeVariable.superclass.shortReadableName() : typeVariable.superclass.readableName());
    }
    int length;
    if ((length = typeVariable.superInterfaces.length) > 0) {
	    for (int i = 0; i < length; i++) {
	        if (i > 0 || TypeBinding.equalsEquals(typeVariable.firstBound, typeVariable.superclass)) nameBuffer.append(" & "); //$NON-NLS-1$
	        nameBuffer.append(makeShort ? typeVariable.superInterfaces[i].shortReadableName() : typeVariable.superInterfaces[i].readableName());
	    }
	}
	return nameBuffer.toString();
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
public void complainIfUnusedExceptionHandlers(AbstractMethodDeclaration method) {
	MethodScope scope = method.scope;
	// can optionally skip overriding methods
	if ((method.binding.modifiers & (ExtraCompilerModifiers.AccOverriding | ExtraCompilerModifiers.AccImplementing)) != 0
	        && !scope.compilerOptions().reportUnusedDeclaredThrownExceptionWhenOverriding) {
	    return;
	}

	// report errors for unreachable exception handlers
	TypeBinding[] docCommentReferences = null;
	int docCommentReferencesLength = 0;
	if (scope.compilerOptions().
				reportUnusedDeclaredThrownExceptionIncludeDocCommentReference &&
			method.javadoc != null &&
			method.javadoc.exceptionReferences != null &&
			(docCommentReferencesLength = method.javadoc.exceptionReferences.length) > 0) {
		docCommentReferences = new TypeBinding[docCommentReferencesLength];
		for (int i = 0; i < docCommentReferencesLength; i++) {
			docCommentReferences[i] = method.javadoc.exceptionReferences[i].resolvedType;
		}
	}
	nextHandledException: for (int i = 0, count = this.handledExceptions.length; i < count; i++) {
		int index = this.indexes.get(this.handledExceptions[i]);
		if ((this.isReached[index / ExceptionHandlingFlowContext.BitCacheSize] & 1 << (index % ExceptionHandlingFlowContext.BitCacheSize)) == 0) {
			for (int j = 0; j < docCommentReferencesLength; j++) {
				if (TypeBinding.equalsEquals(docCommentReferences[j], this.handledExceptions[i])) {
					continue nextHandledException;
				}
			}
			scope.problemReporter().unusedDeclaredThrownException(
				this.handledExceptions[index],
				method,
				method.thrownExceptions[index]);
		}
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
private ASTNode getExceptionType(int index) {	
	if (this.exceptionToCatchBlockMap == null) {
		return this.catchArguments[index].type;
	}
	int catchBlock = this.exceptionToCatchBlockMap[index];
	ASTNode node = this.catchArguments[catchBlock].type;
	if (node instanceof UnionTypeReference) {
		TypeReference[] typeRefs = ((UnionTypeReference)node).typeReferences;
		for (int i = 0, len = typeRefs.length; i < len; i++) {
			TypeReference typeRef = typeRefs[i];
			if (TypeBinding.equalsEquals(typeRef.resolvedType, this.handledExceptions[index])) return typeRef;
		}	
	} 
	return node;
}
 

import org.eclipse.jdt.internal.compiler.lookup.TypeBinding; //导入方法依赖的package包/类
/**
 * Cast expressions will considered as useful if removing them all would actually bind to a different method
 * (no fine grain analysis on per casted argument basis, simply separate widening cast from narrowing ones)
 */
public static void checkNeedForArgumentCasts(BlockScope scope, Expression receiver, TypeBinding receiverType, MethodBinding binding, Expression[] arguments, TypeBinding[] argumentTypes, final InvocationSite invocationSite) {
	if (scope.compilerOptions().getSeverity(CompilerOptions.UnnecessaryTypeCheck) == ProblemSeverities.Ignore) return;

	int length = argumentTypes.length;

	// iterate over arguments, and retrieve original argument types (before cast)
	TypeBinding[] rawArgumentTypes = argumentTypes;
	for (int i = 0; i < length; i++) {
		Expression argument = arguments[i];
		if (argument instanceof CastExpression) {
			// narrowing conversion on base type may change value, thus necessary
			if ((argument.bits & ASTNode.UnnecessaryCast) == 0 && argument.resolvedType.isBaseType()) {
				continue;
			}
			TypeBinding castedExpressionType = ((CastExpression)argument).expression.resolvedType;
			if (castedExpressionType == null) return; // cannot do better
			// obvious identity cast
			if (TypeBinding.equalsEquals(castedExpressionType, argumentTypes[i])) {
				scope.problemReporter().unnecessaryCast((CastExpression)argument);
			} else if (castedExpressionType == TypeBinding.NULL){
				continue; // tolerate null argument cast
			} else if ((argument.implicitConversion & TypeIds.BOXING) != 0) {
				continue; // boxing has a side effect: (int) char   is not boxed as simple char
			} else {
				if (rawArgumentTypes == argumentTypes) {
					System.arraycopy(rawArgumentTypes, 0, rawArgumentTypes = new TypeBinding[length], 0, length);
				}
				// retain original argument type
				rawArgumentTypes[i] = castedExpressionType;
			}
		}
	}
	// perform alternate lookup with original types
	if (rawArgumentTypes != argumentTypes) {
		checkAlternateBinding(scope, receiver, receiverType, binding, arguments, argumentTypes, rawArgumentTypes, invocationSite);
	}
}