/**
* Check expression statement for test assertions.
*
* @param estmt Expression statements.
*/
private void checkAssertions(ExpressionStatement estmt) {
if (estmt.getExpression() instanceof MethodInvocation) {
MethodInvocation mi = (MethodInvocation) estmt.getExpression();
// Increment number of test assertions.
if (mi.getName() != null && mi.getName().getIdentifier().startsWith("assert")) {
this.numOfTestAssertions++;
}
}
}
/*
* @see ASTVisitor#visit(MethodInvocation)
*/
public boolean visit(MethodInvocation node) {
if (node.getExpression() != null) {
node.getExpression().accept(this);
this.fBuffer.append("."); // $NON-NLS-1$
}
if (node.getAST().apiLevel() >= AST.JLS3) {
if (!node.typeArguments().isEmpty()) {
this.fBuffer.append("<"); // $NON-NLS-1$
for (Iterator it = node.typeArguments().iterator(); it.hasNext(); ) {
Type t = (Type) it.next();
t.accept(this);
if (it.hasNext()) {
this.fBuffer.append(","); // $NON-NLS-1$
}
}
this.fBuffer.append(">"); // $NON-NLS-1$
}
}
node.getName().accept(this);
this.fBuffer.append("("); // $NON-NLS-1$
for (Iterator it = node.arguments().iterator(); it.hasNext(); ) {
Expression e = (Expression) it.next();
e.accept(this);
if (it.hasNext()) {
this.fBuffer.append(","); // $NON-NLS-1$
}
}
this.fBuffer.append(")"); // $NON-NLS-1$
return false;
}
/*
* @see ASTVisitor#endVisit(MethodInvocation)
*/
@Override
public boolean visit(MethodInvocation node) {
evalQualifyingExpression(node.getExpression(), node.getName());
doVisitChildren(node.typeArguments());
doVisitChildren(node.arguments());
return false;
}
@Override
public boolean visit(MethodInvocation node) {
String mName = node.getName().getFullyQualifiedName().toString();
Expression e = node.getExpression();
String typName = "";
if (e instanceof StringLiteral) {
typName = "string";
} else if (e instanceof FieldAccess) {
FieldAccess field = (FieldAccess) e;
typName = field.getName().getFullyQualifiedName();
} else if (e instanceof Name) {
typName = ((Name) e).getFullyQualifiedName();
if (varTypMap.containsKey(typName)) {
typName = varTypMap.get(typName);
}
} else {
if (e != null) {
typName = e.toString();
if (typName.contains(".")) typName = typName.substring(0, typName.indexOf('.', 0));
if (varTypMap.containsKey(typName)) typName = varTypMap.get(typName);
}
}
String key = typName + "->" + mName;
if (freqRecord.containsKey(key)) {
freqRecord.put(key, freqRecord.get(key) + 1);
} else {
freqRecord.put(key, 1);
}
return super.visit(node);
}
////////////////////////////////////////////////////////////////////////////
//
// Parser
//
////////////////////////////////////////////////////////////////////////////
@Override
public AstObjectInfo parseExpression(
AstEditor editor,
String signature,
MethodInvocation invocation,
Expression[] arguments,
IModelResolver resolver,
IDatabindingsProvider provider)
throws Exception {
if (SET_STORE.equals(signature)) {
m_storeReference = CoreUtils.getNodeReference(arguments[0]);
return null;
}
if (AUTO_BIND.equals(signature)) {
setAutobind(true);
return null;
}
if (BIND.equals(signature)) {
AnonymousClassDeclaration anonymousClassDeclaration =
AstNodeUtils.getEnclosingNode(invocation, AnonymousClassDeclaration.class);
if (anonymousClassDeclaration != null
&& anonymousClassDeclaration.getParent() instanceof ClassInstanceCreation
&& anonymousClassDeclaration.getParent().getParent() instanceof MethodInvocation) {
MethodInvocation addListenerInvocation =
(MethodInvocation) anonymousClassDeclaration.getParent().getParent();
if ("addListener".equals(addListenerInvocation.getName().getIdentifier())
&& addListenerInvocation.getExpression() instanceof MethodInvocation) {
MethodInvocation getSelectionModelInvocation =
(MethodInvocation) addListenerInvocation.getExpression();
if ("getSelectionModel".equals(getSelectionModelInvocation.getName().getIdentifier())) {
finishBinding(getSelectionModelInvocation.getExpression(), arguments[0], provider);
return null;
}
}
}
finishBinding(arguments, provider);
return null;
}
//
return super.parseExpression(editor, signature, invocation, arguments, resolver, provider);
}
private Type evaluateVariableType(
AST ast,
ImportRewrite imports,
ImportRewriteContext importRewriteContext,
IBinding targetContext) {
if (fOriginalNode.getParent() instanceof MethodInvocation) {
MethodInvocation parent = (MethodInvocation) fOriginalNode.getParent();
if (parent.getExpression() == fOriginalNode) {
// _x_.foo() -> guess qualifier type by looking for a type with method 'foo'
ITypeBinding[] bindings =
ASTResolving.getQualifierGuess(
fOriginalNode.getRoot(),
parent.getName().getIdentifier(),
parent.arguments(),
targetContext);
if (bindings.length > 0) {
for (int i = 0; i < bindings.length; i++) {
addLinkedPositionProposal(KEY_TYPE, bindings[i]);
}
return imports.addImport(bindings[0], ast, importRewriteContext);
}
}
}
ITypeBinding binding = ASTResolving.guessBindingForReference(fOriginalNode);
if (binding != null) {
if (binding.isWildcardType()) {
binding = ASTResolving.normalizeWildcardType(binding, isVariableAssigned(), ast);
if (binding == null) {
// only null binding applies
binding = ast.resolveWellKnownType("java.lang.Object"); // $NON-NLS-1$
}
}
if (isVariableAssigned()) {
ITypeBinding[] typeProposals = ASTResolving.getRelaxingTypes(ast, binding);
for (int i = 0; i < typeProposals.length; i++) {
addLinkedPositionProposal(KEY_TYPE, typeProposals[i]);
}
}
return imports.addImport(binding, ast, importRewriteContext);
}
// no binding, find type AST node instead -> ABC a= x-> use 'ABC' as is
Type type = ASTResolving.guessTypeForReference(ast, fOriginalNode);
if (type != null) {
return type;
}
if (fVariableKind == CONST_FIELD) {
return ast.newSimpleType(ast.newSimpleName("String")); // $NON-NLS-1$
}
return ast.newSimpleType(ast.newSimpleName("Object")); // $NON-NLS-1$
}
@SuppressWarnings("rawtypes")
@Override
public boolean visit(MethodInvocation node) {
SimpleName methodName = node.getName();
List args = node.arguments();
Expression expression = node.getExpression();
Map<String, Integer> scopeBindings = getNodeScopes().get(node);
String target = getTarget(expression);
String targetType = translateTargetToType(target, scopeBindings);
// Add only if you could guess the type of target, else ignore.
// TODO: In case of a method in super type, this will still infer it as in "this".
if (!targetType.isEmpty()) {
List<String> argTypes = translateArgsToTypes(args, scopeBindings);
if (!methodStack.empty()) {
MethodDeclaration currentMethod = methodStack.peek();
MethodDecl methodDecl = getMethodDecl(currentMethod);
List<MethodInvokRef> invoks = methodInvoks.get(methodDecl);
if (invoks == null) {
invoks = new ArrayList<>();
methodInvoks.put(methodDecl, invoks);
}
MethodInvokRef methodInvokRef =
new MethodInvokRef(
methodName.toString(),
targetType,
target,
args.size(),
node.getName().getStartPosition(),
argTypes,
methodName.getLength(),
false,
getReturnType(node));
invoks.add(methodInvokRef);
}
}
return true;
}
@Override
public void endVisit(MethodInvocation node) {
// TODO need more complex cases
Stack<VMExpression> arguments = new Stack<VMExpression>();
for (int i = 0; i < node.arguments().size(); i++) {
arguments.push((VMExpression) expressions.pop());
}
VMExpression role = null;
if (!Modifier.isStatic(node.resolveMethodBinding().getModifiers())) {
role = (node.getExpression() == null) ? null : (VMExpression) (expressions.pop());
}
VMMethodInvocation methodInvo = new VMMethodInvocation(node, node.getName().toString(), role);
while (!arguments.empty()) {
methodInvo.getArguments().add(arguments.pop());
}
expressions.push(methodInvo);
}
/**
* Visits {@link SimpleName} AST nodes. Resolves the binding of the simple name and looks for it
* in the {variableScope} map. If the binding is found, this is a reference to a variable.
*
* @param node the node to visit
*/
@Override
public boolean visit(final SimpleName node) {
if (node.getParent().getNodeType() == ASTNode.METHOD_INVOCATION) {
final MethodInvocation invocation = (MethodInvocation) node.getParent();
if (invocation.getName() == node) {
return true;
}
}
// method declaration can have same name as variable but this does not mean it is binding to
// that variable
// added particularly for enum
if (node.getParent().getNodeType() == ASTNode.METHOD_DECLARATION) {
return true;
}
addBindingData(node.getIdentifier(), node, nodeScopes.get(node));
return true;
}
private static boolean replaceEnsureClassInitialized(ImplWriter w, MethodInvocation node) {
if (!node.getName().getIdentifier().equals("ensureClassInitialized")) {
return false;
}
if (node.arguments().size() != 1 || !(node.arguments().get(0) instanceof TypeLiteral)) {
return false;
}
IMethodBinding mb = node.resolveMethodBinding();
if (!mb.getDeclaringClass().getQualifiedName().equals("sun.misc.Unsafe")) {
return false;
}
TypeLiteral tl = (TypeLiteral) node.arguments().get(0);
ITypeBinding tb = tl.getType().resolveBinding();
w.hardDep(tb);
w.print(CName.relative(tb, w.type, true) + "::clinit()");
return true;
}
/**
* Decide whether or not the given invocation resolves to a MongoDB collection.
*
* @param invocation
* @return
*/
private boolean isGetCollection(final MethodInvocation invocation) {
boolean returnValue;
String currentVariable;
String invocationString;
returnValue = false;
if (invocation
.resolveMethodBinding()
.getDeclaringClass()
.getQualifiedName()
.equals("com.mongodb.DB")) {
if (invocation.getName().toString().equals("getCollection")) {
invocationString = invocation.getParent().toString();
currentVariable = invocationString.substring(0, invocationString.indexOf('='));
if (this.variableName.equals(currentVariable)) {
returnValue = true;
}
}
}
return returnValue;
}
@Override
public boolean visit(MethodInvocation node) {
String methodKey = castHelper.methodKey(node);
String methodName = node.getName().toString();
int lineNumber = compilationUnit.getLineNumber(node.getStartPosition());
// 函数调用在线程调用到的函数中(单个函数可能牵扯到多个线程)
if (threadMethodMapTable.containsKey(methodKey) && node.resolveMethodBinding() != null) {
IMethodBinding iMethodBinding = node.resolveMethodBinding();
// 1.中断判断函数(中断接受节点)
if ((methodName.equals("interrupted") || methodName.equals("isInterrupted"))) {
if (iMethodBinding.getDeclaringClass() != null
&& iMethodBinding.getDeclaringClass().getBinaryName().equals("java.lang.Thread")) {
System.out.println(node);
System.out.println("interrupted judge");
HashSet<String> threads = threadMethodMapTable.get(methodKey);
// (1)添加到每个线程的中断接受节点集合
for (String thread : threads) {
ThreadInformation threadInformation = threadInfo.get(thread);
Node interruptedNode = new Node(filePath, lineNumber);
threadInformation.getInterruptNodes().add(interruptedNode);
}
// (2)变量自身判断(根据自己所绑定的线程类型而添加中断接受节点)
interruptAcceptNodeHandle(node);
}
}
// 2.引发中断的函数调用(中断通知节点)
else if (methodName.equals("interrupt")) {
ThreadInterruptNode threadInterruptNode = new ThreadInterruptNode(filePath, lineNumber);
// (1)自中断
if (node.getExpression() instanceof MethodInvocation
&& ((MethodInvocation) node.getExpression())
.getName()
.getIdentifier()
.equals("currentThread")) {
// 对有可能调用该自中断的线程添加到中断通知节点中
HashSet<String> threads = threadMethodMapTable.get(methodKey);
for (String thread : threads) {
threadInterruptNode.getThreadKeyList().add(thread);
}
threadInterruptNodes.add(threadInterruptNode);
}
// (2)调用中断,通过变量来定位threadKey
else if (iMethodBinding.getDeclaringClass() != null
&& iMethodBinding.getDeclaringClass().getBinaryName().equals("java.lang.Thread")) {
interruptNotifyNodeHandle(node, threadInterruptNode);
}
}
// 3.会抛出中断异常的函数(中断接受节点)
else {
ITypeBinding[] typeBindings = node.resolveMethodBinding().getExceptionTypes();
for (ITypeBinding iTypeBinding : typeBindings) {
if (iTypeBinding.getBinaryName().equals("java.lang.InterruptedException")) {
System.out.println(node);
System.out.println("interrupted exception");
HashSet<String> threads = threadMethodMapTable.get(methodKey);
// (1)添加到每个线程的中断接受节点集合
for (String thread : threads) {
ThreadInformation threadInformation = threadInfo.get(thread);
Node interruptedNode = new Node(filePath, lineNumber);
threadInformation.getInterruptNodes().add(interruptedNode);
}
// (2)变量自身判断(根据自己所绑定的线程类型而添加中断接受节点)
interruptAcceptNodeHandle(node);
}
}
}
}
return super.visit(node);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ASTVisitor#visit(org.eclipse.jdt.core.dom.MethodInvocation)
*/
public boolean visit(MethodInvocation node) {
expression =
createMethodInvocation(
node.getName().getIdentifier(), perform(node.getExpression()), node.arguments());
return false;
}
public boolean visit(MethodInvocation invocation) {
if (this.have(invocation.getName().resolveBinding().getJavaElement())) recordOwner();
return true;
}