import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
public boolean checkAccess(BlockScope scope, ReferenceBinding thisType) {
	// this/super cannot be used in constructor call
	MethodScope methodScope = scope.methodScope();
	if (this.evaluationContext.isConstructorCall) {
		methodScope.problemReporter().fieldsOrThisBeforeConstructorInvocation(this);
		return false;
	}

	// static may not refer to this/super
	if (this.evaluationContext.declaringTypeName == null || this.evaluationContext.isStatic) {
		methodScope.problemReporter().errorThisSuperInStatic(this);
		return false;
	}
	scope.tagAsAccessingEnclosingInstanceStateOf(thisType, false /* type variable access */);
	return true;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
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;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的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.MethodScope; //导入依赖的package包/类
public int recordFunctionalType(Scope scope) {
	while (scope != null) {
		switch (scope.kind) {
			case Scope.METHOD_SCOPE :
				ReferenceContext context = ((MethodScope) scope).referenceContext;
				if (context instanceof LambdaExpression) {
					LambdaExpression expression = (LambdaExpression) context;
					if (expression != expression.original) // fake universe.
						return 0;
				}
				break; 
			case Scope.COMPILATION_UNIT_SCOPE :
				CompilationUnitDeclaration unit = ((CompilationUnitScope) scope).referenceContext;
				return unit.record(this);
		}
		scope = scope.parent;
	}
	return 0; // not reached.
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
public TypeBinding resolveType(BlockScope scope) {
	// implicit this
	this.constant = Constant.NotAConstant;
	TypeBinding snippetType = null;
	MethodScope methodScope = scope.methodScope();
	if (!this.isImplicit && !checkAccess(methodScope)) {
		return null;
	}
	snippetType = scope.enclosingSourceType();

	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;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的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())
			&& 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.MethodScope; //导入依赖的package包/类
public void generateBuilderFields(EclipseNode builderType, List<BuilderFieldData> builderFields, ASTNode source) {
	List<EclipseNode> existing = new ArrayList<EclipseNode>();
	for (EclipseNode child : builderType.down()) {
		if (child.getKind() == Kind.FIELD) existing.add(child);
	}
	
	top:
	for (BuilderFieldData bfd : builderFields) {
		if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
			bfd.createdFields.addAll(bfd.singularData.getSingularizer().generateFields(bfd.singularData, builderType));
		} else {
			for (EclipseNode exists : existing) {
				char[] n = ((FieldDeclaration) exists.get()).name;
				if (Arrays.equals(n, bfd.name)) {
					bfd.createdFields.add(exists);
					continue top;
				}
			}
			
			FieldDeclaration fd = new FieldDeclaration(bfd.name, 0, 0);
			fd.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
			fd.modifiers = ClassFileConstants.AccPrivate;
			fd.type = copyType(bfd.type);
			fd.traverse(new SetGeneratedByVisitor(source), (MethodScope) null);
			bfd.createdFields.add(injectFieldAndMarkGenerated(builderType, fd));
		}
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
public void setGeneratedByRecursive(ASTNode target) {
	SetGeneratedByVisitor visitor = new SetGeneratedByVisitor(source);
	
	if (target instanceof AbstractMethodDeclaration) {
		((AbstractMethodDeclaration) target).traverse(visitor, (ClassScope) null);
	} else if (target instanceof FieldDeclaration) {
		((FieldDeclaration) target).traverse(visitor, (MethodScope) null);
	} else {
		target.traverse(visitor, null);
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
@Override
public boolean visit(FieldDeclaration fieldDeclaration, MethodScope scope) {
	Annotation[] annotations = fieldDeclaration.annotations;
	if (annotations != null) {
		FieldBinding fieldBinding = fieldDeclaration.binding;
		if (fieldBinding == null) {
			return false;
		}
		((SourceTypeBinding) fieldBinding.declaringClass).resolveTypeFor(fieldBinding);
		this.resolveAnnotations(scope, annotations, fieldBinding);
	}
	return false;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
/**
 * @see org.eclipse.jdt.internal.compiler.ASTVisitor#visit(org.eclipse.jdt.internal.compiler.ast.Initializer, org.eclipse.jdt.internal.compiler.lookup.MethodScope)
 */
public boolean visit(Initializer initializer, MethodScope scope) {

	if (initializer.isStatic()) {
		this.scribe.printNextToken(TerminalTokens.TokenNamestatic);
	}
	initializer.block.traverse(this, scope);
	return false;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
protected IJavaElement findLocalElement(int pos, MethodScope scope) {
	if (scope != null && scope.isLambdaScope()) {
		IJavaElement parent = findLocalElement(pos, scope.enclosingMethodScope());
		LambdaExpression expression = (LambdaExpression) scope.originalReferenceContext();
		if (expression != null && expression.resolvedType != null && expression.resolvedType.isValidBinding()) {
			org.eclipse.jdt.internal.core.LambdaExpression lambdaElement = LambdaFactory.createLambdaExpression((JavaElement) parent, expression);
			return lambdaElement.getMethod();
		}
		return parent;
	}
	return findLocalElement(pos);
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
private void visitIfNeeded(FieldDeclaration field, TypeDeclaration declaringType) {
	if (this.localDeclarationVisitor != null
		&& (field.bits & ASTNode.HasLocalType) != 0) {
			if (field.initialization != null) {
				try {
					this.localDeclarationVisitor.pushDeclaringType(declaringType);
					field.initialization.traverse(this.localDeclarationVisitor, (MethodScope) null);
				} finally {
					this.localDeclarationVisitor.popDeclaringType();
				}
			}
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
public boolean visit(
	FieldDeclaration fieldDeclaration,
	MethodScope scope) {
		if (fieldDeclaration.declarationSourceStart <= this.position
			&& this.position <= fieldDeclaration.declarationSourceEnd) {
				this.found = fieldDeclaration;
				return false;
		}
		return true;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的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.MethodScope; //导入依赖的package包/类
public void tagAsHavingIgnoredMandatoryErrors(int problemId) {
	switch (problemId) {
		// 15.27.3 requires exception throw related errors to not influence congruence. Other errors should. Also don't abort shape analysis.
		case IProblem.UnhandledExceptionOnAutoClose:
		case IProblem.UnhandledExceptionInDefaultConstructor:
		case IProblem.UnhandledException:
			return;
		/* The following structural problems can occur only because of target type imposition. Filter, so we can distinguish inherent errors 
		   in explicit lambdas. This is to help decide whether to proceed with data/control flow analysis to discover shape. In case of inherent
		   errors, we will not call analyze code as it is not prepared to analyze broken programs.
		*/
		case IProblem.VoidMethodReturnsValue:
		case IProblem.ShouldReturnValueHintMissingDefault:
		case IProblem.ShouldReturnValue:
		case IProblem.ReturnTypeMismatch:
		case IProblem.IncompatibleLambdaParameterType:
		case IProblem.lambdaParameterTypeMismatched:
		case IProblem.lambdaSignatureMismatched:
		case IProblem.LambdaDescriptorMentionsUnmentionable:
		case IProblem.TargetTypeNotAFunctionalInterface:
		case IProblem.illFormedParameterizationOfFunctionalInterface:
		case IProblem.MultipleFunctionalInterfaces:
		case IProblem.NoGenericLambda:
			return;
		default: 
			this.original.hasIgnoredMandatoryErrors = true;
			MethodScope enclosingLambdaScope = this.scope == null ? null : this.scope.enclosingLambdaScope();
			while (enclosingLambdaScope != null) {
				LambdaExpression enclosingLambda = (LambdaExpression) enclosingLambdaScope.referenceContext;
				if (enclosingLambda.original != enclosingLambda)
					enclosingLambda.original.hasIgnoredMandatoryErrors = true;
				enclosingLambdaScope = enclosingLambdaScope.enclosingLambdaScope();
			}
			return;
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
private boolean methodHasMissingSwitchDefault() {
	MethodScope methodScope = null;
	if (this.referenceContext instanceof Block) {
		methodScope = ((Block)this.referenceContext).scope.methodScope();
	} else if (this.referenceContext instanceof AbstractMethodDeclaration) {
		methodScope = ((AbstractMethodDeclaration)this.referenceContext).scope;
	}
	return methodScope != null && methodScope.hasMissingSwitchDefault;	
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
public boolean checkAccess(MethodScope methodScope) {
	// this/super cannot be used in constructor call
	if (this.evaluationContext.isConstructorCall) {
		methodScope.problemReporter().fieldsOrThisBeforeConstructorInvocation(this);
		return false;
	}

	// static may not refer to this/super
	if (this.evaluationContext.declaringTypeName == null || this.evaluationContext.isStatic) {
		methodScope.problemReporter().errorThisSuperInStatic(this);
		return false;
	}
	return true;
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的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 (docCommentReferences[j] == this.handledExceptions[i]) {
					continue nextHandledException;
				}
			}
			scope.problemReporter().unusedDeclaredThrownException(
				this.handledExceptions[index],
				method,
				method.thrownExceptions[index]);
		}
	}
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
@Override
public void endVisit(FieldDeclaration x, MethodScope scope) {
  try {
    JExpression initialization = pop(x.initialization);
    JField field = typeMap.get(x.binding);
    if (field instanceof JEnumField) {
      // An enum field must be initialized!
      assert (initialization instanceof JNewInstance);
    }

    if (initialization != null) {
      SourceInfo info = makeSourceInfo(x);
      JExpression instance = null;
      if (!x.isStatic()) {
        instance = makeThisRef(info);
      }
      // JDeclarationStatement's ctor sets up the field's initializer.
      JStatement decl =
          new JDeclarationStatement(info, new JFieldRef(info, instance, field, curClass.type),
              initialization);
      // will either be init or clinit
      curMethod.body.getBlock().addStmt(decl);
    }
    popMethodInfo();
  } catch (Throwable e) {
    throw translateException(x, e);
  }
}
 

import org.eclipse.jdt.internal.compiler.lookup.MethodScope; //导入依赖的package包/类
@Override
public boolean visit(FieldDeclaration x, MethodScope scope) {
  try {
    assert !typeMap.get(x.binding).isExternal();
    pushInitializerMethodInfo(x, scope);
    return true;
  } catch (Throwable e) {
    throw translateException(x, e);
  }
}