import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
private MethodDeclaration generateCleanMethod(List<BuilderFieldData> builderFields, EclipseNode builderType, ASTNode source) {
	List<Statement> statements = new ArrayList<Statement>();
	
	for (BuilderFieldData bfd : builderFields) {
		if (bfd.singularData != null && bfd.singularData.getSingularizer() != null) {
			bfd.singularData.getSingularizer().appendCleaningCode(bfd.singularData, builderType, statements);
		}
	}
	
	FieldReference thisUnclean = new FieldReference(CLEAN_FIELD_NAME, 0);
	thisUnclean.receiver = new ThisReference(0, 0);
	statements.add(new Assignment(thisUnclean, new FalseLiteral(0, 0), 0));
	MethodDeclaration decl = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
	decl.selector = CLEAN_METHOD_NAME;
	decl.modifiers = ClassFileConstants.AccPrivate;
	decl.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	decl.returnType = TypeReference.baseTypeReference(TypeIds.T_void, 0);
	decl.statements = statements.toArray(new Statement[0]);
	decl.traverse(new SetGeneratedByVisitor(source), (ClassScope) null);
	return decl;
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
private void doAssignmentCheck0(EclipseNode node, Statement statement, char[] varName) {
	if (statement instanceof Assignment)
		doAssignmentCheck0(node, ((Assignment)statement).expression, varName);
	else if (statement instanceof LocalDeclaration)
		doAssignmentCheck0(node, ((LocalDeclaration)statement).initialization, varName);
	else if (statement instanceof CastExpression)
		doAssignmentCheck0(node, ((CastExpression)statement).expression, varName);
	else if (statement instanceof SingleNameReference) {
		if (Arrays.equals(((SingleNameReference)statement).token, varName)) {
			EclipseNode problemNode = node.getNodeFor(statement);
			if (problemNode != null) problemNode.addWarning(
					"You're assigning an auto-cleanup variable to something else. This is a bad idea.");
		}
	}
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
void generateClearMethod(TypeReference returnType, Statement returnStatement, SingularData data, EclipseNode builderType) {
	MethodDeclaration md = new MethodDeclaration(((CompilationUnitDeclaration) builderType.top().get()).compilationResult);
	md.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	md.modifiers = ClassFileConstants.AccPublic;
	
	FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
	thisDotField.receiver = new ThisReference(0, 0);
	Assignment a = new Assignment(thisDotField, new NullLiteral(0, 0), 0);
	md.selector = HandlerUtil.buildAccessorName("clear", new String(data.getPluralName())).toCharArray();
	md.statements = returnStatement != null ? new Statement[] {a, returnStatement} : new Statement[] {a};
	md.returnType = returnType;
	injectMethod(builderType, md);
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
protected Statement createConstructBuilderVarIfNeeded(SingularData data, EclipseNode builderType) {
	FieldReference thisDotField = new FieldReference(data.getPluralName(), 0L);
	thisDotField.receiver = new ThisReference(0, 0);
	FieldReference thisDotField2 = new FieldReference(data.getPluralName(), 0L);
	thisDotField2.receiver = new ThisReference(0, 0);
	Expression cond = new EqualExpression(thisDotField, new NullLiteral(0, 0), OperatorIds.EQUAL_EQUAL);
	
	MessageSend createBuilderInvoke = new MessageSend();
	char[][] tokenizedName = makeGuavaTypeName(getSimpleTargetTypeName(data), false);
	createBuilderInvoke.receiver = new QualifiedNameReference(tokenizedName, NULL_POSS, 0, 0);
	createBuilderInvoke.selector = getBuilderMethodName(data);
	return new IfStatement(cond, new Assignment(thisDotField2, createBuilderInvoke, 0), 0, 0);
}
 

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

	final int numberOfParens = (assignment.bits & ASTNode.ParenthesizedMASK) >> ASTNode.ParenthesizedSHIFT;
	if (numberOfParens > 0) {
		manageOpeningParenthesizedExpression(assignment, numberOfParens);
	}
	assignment.lhs.traverse(this, scope);
	this.scribe.printNextToken(TerminalTokens.TokenNameEQUAL, this.preferences.insert_space_before_assignment_operator);
	if (this.preferences.insert_space_after_assignment_operator) {
		this.scribe.space();
	}

	Alignment assignmentAlignment = this.scribe.createAlignment(
			Alignment.ASSIGNMENT,
			this.preferences.alignment_for_assignment,
			Alignment.R_OUTERMOST,
			1,
			this.scribe.scanner.currentPosition);
	this.scribe.enterAlignment(assignmentAlignment);
	boolean ok = false;
	do {
		try {
			this.scribe.alignFragment(assignmentAlignment, 0);
			assignment.expression.traverse(this, scope);
			ok = true;
		} catch(AlignmentException e){
			this.scribe.redoAlignment(e);
		}
	} while (!ok);
	this.scribe.exitAlignment(assignmentAlignment, true);

	if (numberOfParens > 0) {
		manageClosingParenthesizedExpression(assignment, numberOfParens);
	}
	return false;
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
public void generateAssignment(BlockScope currentScope, CodeStream codeStream, Assignment assignment, boolean valueRequired) {
	FieldBinding codegenBinding = this.binding.original();
	if (codegenBinding.canBeSeenBy(this.actualReceiverType, this, currentScope)) {
		this.receiver.generateCode(currentScope, codeStream, !codegenBinding.isStatic());
		assignment.expression.generateCode(currentScope, codeStream, true);
		fieldStore(currentScope, codeStream, codegenBinding, null, this.actualReceiverType, this.receiver.isImplicitThis(), valueRequired);
	} else {
		codeStream.generateEmulationForField(codegenBinding);
		this.receiver.generateCode(currentScope, codeStream, !codegenBinding.isStatic());
		if (codegenBinding.isStatic()) { // need a receiver?
			codeStream.aconst_null();
		}
		assignment.expression.generateCode(currentScope, codeStream, true);
		if (valueRequired) {
			switch (codegenBinding.type.id) {
				case TypeIds.T_long :
				case TypeIds.T_double :
					codeStream.dup2_x2();
					break;
				default :
					codeStream.dup_x2();
					break;
			}			
		}
		codeStream.generateEmulatedWriteAccessForField(codegenBinding);
	}
	if (valueRequired){
		codeStream.generateImplicitConversion(assignment.implicitConversion);
	}
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
/**
 * Check and/or redirect the field access to the delegate receiver if any
 */
public void generateAssignment(BlockScope currentScope, CodeStream codeStream, Assignment assignment, boolean valueRequired) {
    FieldBinding lastFieldBinding = this.otherBindings == null ? (FieldBinding) this.binding : this.otherBindings[this.otherBindings.length-1];
	if (lastFieldBinding.canBeSeenBy(getFinalReceiverType(), this, currentScope)) {
		super.generateAssignment(currentScope, codeStream, assignment, valueRequired);
		return;
	}
	lastFieldBinding = generateReadSequence(currentScope, codeStream);
	codeStream.generateEmulationForField(lastFieldBinding);
	codeStream.swap();
	assignment.expression.generateCode(currentScope, codeStream, true);
	if (valueRequired) {
		switch (lastFieldBinding.type.id) {
			case TypeIds.T_long :
			case TypeIds.T_double :
				codeStream.dup2_x2();
				break;
			default :
				codeStream.dup_x2();
			break;	
		}		
	}
	codeStream.generateEmulatedWriteAccessForField(lastFieldBinding);
	if (valueRequired) {
		codeStream.generateImplicitConversion(assignment.implicitConversion);
	}
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
protected void consumeAssignment() {
	// Assignment ::= LeftHandSide AssignmentOperator AssignmentExpression
	//optimize the push/pop

	int op = this.intStack[this.intPtr--] ; //<--the encoded operator

	this.expressionPtr -- ; this.expressionLengthPtr -- ;
	Expression expression = this.expressionStack[this.expressionPtr+1];
	this.expressionStack[this.expressionPtr] =
		(op != EQUAL ) ?
			new CompoundAssignment(
				this.expressionStack[this.expressionPtr] ,
				expression,
				op,
				expression.sourceEnd):
			new Assignment(
				this.expressionStack[this.expressionPtr] ,
				expression,
				expression.sourceEnd);

	if (this.pendingRecoveredType != null) {
		// Used only in statements recovery.
		// This is not a real assignment but a placeholder for an existing anonymous type.
		// The assignment must be replace by the anonymous type.
		if (this.pendingRecoveredType.allocation != null &&
				this.scanner.startPosition - 1 <= this.pendingRecoveredType.declarationSourceEnd) {
			this.expressionStack[this.expressionPtr] = this.pendingRecoveredType.allocation;
			this.pendingRecoveredType = null;
			return;
		}
		this.pendingRecoveredType = null;
	}
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
public void assignmentHasNoEffect(Assignment location, char[] name){
	int severity = computeSeverity(IProblem.AssignmentHasNoEffect);
	if (severity == ProblemSeverities.Ignore) return;
	String[] arguments = new String[] { new String(name) };
	this.handle(
			IProblem.AssignmentHasNoEffect,
			arguments,
			arguments,
			severity,
			location.sourceStart,
			location.sourceEnd);
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
public void possibleAccidentalBooleanAssignment(Assignment assignment) {
	this.handle(
		IProblem.PossibleAccidentalBooleanAssignment,
		NoArgument,
		NoArgument,
		assignment.sourceStart,
		assignment.sourceEnd);
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
static MethodDeclaration createSetter(TypeDeclaration parent, EclipseNode fieldNode, String name, boolean shouldReturnThis, int modifier, EclipseNode sourceNode, List<Annotation> onMethod, List<Annotation> onParam) {
	FieldDeclaration field = (FieldDeclaration) fieldNode.get();
	ASTNode source = sourceNode.get();
	int pS = source.sourceStart, pE = source.sourceEnd;
	long p = (long)pS << 32 | pE;
	MethodDeclaration method = new MethodDeclaration(parent.compilationResult);
	method.modifiers = modifier;
	if (shouldReturnThis) {
		method.returnType = cloneSelfType(fieldNode, source);
	}
	
	if (method.returnType == null) {
		method.returnType = TypeReference.baseTypeReference(TypeIds.T_void, 0);
		method.returnType.sourceStart = pS; method.returnType.sourceEnd = pE;
		shouldReturnThis = false;
	}
	Annotation[] deprecated = null;
	if (isFieldDeprecated(fieldNode)) {
		deprecated = new Annotation[] { generateDeprecatedAnnotation(source) };
	}
	method.annotations = copyAnnotations(source, onMethod.toArray(new Annotation[0]), deprecated);
	Argument param = new Argument(field.name, p, copyType(field.type, source), Modifier.FINAL);
	param.sourceStart = pS; param.sourceEnd = pE;
	method.arguments = new Argument[] { param };
	method.selector = name.toCharArray();
	method.binding = null;
	method.thrownExceptions = null;
	method.typeParameters = null;
	method.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	Expression fieldRef = createFieldAccessor(fieldNode, FieldAccess.ALWAYS_FIELD, source);
	NameReference fieldNameRef = new SingleNameReference(field.name, p);
	Assignment assignment = new Assignment(fieldRef, fieldNameRef, (int)p);
	assignment.sourceStart = pS; assignment.sourceEnd = assignment.statementEnd = pE;
	method.bodyStart = method.declarationSourceStart = method.sourceStart = source.sourceStart;
	method.bodyEnd = method.declarationSourceEnd = method.sourceEnd = source.sourceEnd;
	
	Annotation[] nonNulls = findAnnotations(field, NON_NULL_PATTERN);
	Annotation[] nullables = findAnnotations(field, NULLABLE_PATTERN);
	List<Statement> statements = new ArrayList<Statement>(5);
	if (nonNulls.length == 0) {
		statements.add(assignment);
	} else {
		Statement nullCheck = generateNullCheck(field, sourceNode);
		if (nullCheck != null) statements.add(nullCheck);
		statements.add(assignment);
	}
	
	if (shouldReturnThis) {
		ThisReference thisRef = new ThisReference(pS, pE);
		ReturnStatement returnThis = new ReturnStatement(thisRef, pS, pE);
		statements.add(returnThis);
	}
	method.statements = statements.toArray(new Statement[0]);
	param.annotations = copyAnnotations(source, nonNulls, nullables, onParam.toArray(new Annotation[0]));
	
	method.traverse(new SetGeneratedByVisitor(source), parent.scope);
	return method;
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
@Override public boolean visit(Assignment node, BlockScope scope) {
	fixPositions(setGeneratedBy(node, source));
	return super.visit(node, scope);
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
public static ConstructorDeclaration createConstructor(
		AccessLevel level, EclipseNode type, Collection<EclipseNode> fields,
		Boolean suppressConstructorProperties, EclipseNode sourceNode, List<Annotation> onConstructor) {
	
	ASTNode source = sourceNode.get();
	TypeDeclaration typeDeclaration = ((TypeDeclaration)type.get());
	long p = (long)source.sourceStart << 32 | source.sourceEnd;
	
	boolean isEnum = (((TypeDeclaration)type.get()).modifiers & ClassFileConstants.AccEnum) != 0;
	
	if (isEnum) level = AccessLevel.PRIVATE;
	
	if (suppressConstructorProperties == null) {
		if (fields.isEmpty()) {
			suppressConstructorProperties = false;
		} else {
			suppressConstructorProperties = Boolean.TRUE.equals(type.getAst().readConfiguration(ConfigurationKeys.ANY_CONSTRUCTOR_SUPPRESS_CONSTRUCTOR_PROPERTIES));
		}
	}
	
	ConstructorDeclaration constructor = new ConstructorDeclaration(
			((CompilationUnitDeclaration) type.top().get()).compilationResult);
	
	constructor.modifiers = toEclipseModifier(level);
	constructor.selector = typeDeclaration.name;
	constructor.constructorCall = new ExplicitConstructorCall(ExplicitConstructorCall.ImplicitSuper);
	constructor.constructorCall.sourceStart = source.sourceStart;
	constructor.constructorCall.sourceEnd = source.sourceEnd;
	constructor.thrownExceptions = null;
	constructor.typeParameters = null;
	constructor.bits |= ECLIPSE_DO_NOT_TOUCH_FLAG;
	constructor.bodyStart = constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
	constructor.bodyEnd = constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
	constructor.arguments = null;
	
	List<Argument> params = new ArrayList<Argument>();
	List<Statement> assigns = new ArrayList<Statement>();
	List<Statement> nullChecks = new ArrayList<Statement>();
	
	for (EclipseNode fieldNode : fields) {
		FieldDeclaration field = (FieldDeclaration) fieldNode.get();
		char[] rawName = field.name;
		char[] fieldName = removePrefixFromField(fieldNode);
		FieldReference thisX = new FieldReference(rawName, p);
		thisX.receiver = new ThisReference((int)(p >> 32), (int)p);
		
		SingleNameReference assignmentNameRef = new SingleNameReference(fieldName, p);
		Assignment assignment = new Assignment(thisX, assignmentNameRef, (int)p);
		assignment.sourceStart = (int)(p >> 32); assignment.sourceEnd = assignment.statementEnd = (int)(p >> 32);
		assigns.add(assignment);
		long fieldPos = (((long)field.sourceStart) << 32) | field.sourceEnd;
		Argument parameter = new Argument(fieldName, fieldPos, copyType(field.type, source), Modifier.FINAL);
		Annotation[] nonNulls = findAnnotations(field, NON_NULL_PATTERN);
		Annotation[] nullables = findAnnotations(field, NULLABLE_PATTERN);
		if (nonNulls.length != 0) {
			Statement nullCheck = generateNullCheck(field, sourceNode);
			if (nullCheck != null) nullChecks.add(nullCheck);
		}
		parameter.annotations = copyAnnotations(source, nonNulls, nullables);
		params.add(parameter);
	}
	
	nullChecks.addAll(assigns);
	constructor.statements = nullChecks.isEmpty() ? null : nullChecks.toArray(new Statement[nullChecks.size()]);
	constructor.arguments = params.isEmpty() ? null : params.toArray(new Argument[params.size()]);
	
	/* Generate annotations that must  be put on the generated method, and attach them. */ {
		Annotation[] constructorProperties = null;
		if (!suppressConstructorProperties && level != AccessLevel.PRIVATE && level != AccessLevel.PACKAGE && !isLocalType(type)) {
			constructorProperties = createConstructorProperties(source, fields);
		}
		
		constructor.annotations = copyAnnotations(source,
				onConstructor.toArray(new Annotation[0]),
				constructorProperties);
	}
	
	constructor.traverse(new SetGeneratedByVisitor(source), typeDeclaration.scope);
	return constructor;
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
public boolean visit(Assignment assignment, BlockScope scope) {
	addRealFragment(assignment);
	return false;
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
@Override
public void endVisit(Assignment x, BlockScope scope) {
  pushBinaryOp(x, JBinaryOperator.ASG);
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
protected void pushBinaryOp(Assignment x, JBinaryOperator op) {
  pushBinaryOp(x, op, x.lhs, x.expression);
}
 

import org.eclipse.jdt.internal.compiler.ast.Assignment; //导入依赖的package包/类
@Override public boolean visit(Assignment node, BlockScope scope) {
	setGeneratedBy(node, source);
	applyOffsetExpression(node);
	return super.visit(node, scope);
}