@Override
public boolean visit(MethodDeclaration node) {
if (node.getBody() == null) {
return VISIT_SUBTREE;
}
List<Statement> bodyStmts = statements(node.getBody());
if (bodyStmts.size() == 1) {
SuperMethodInvocation bodyMi = asExpression(bodyStmts.get(0), SuperMethodInvocation.class);
if (bodyMi != null) {
IMethodBinding bodyMethodBinding = bodyMi.resolveMethodBinding();
IMethodBinding declMethodBinding = node.resolveBinding();
if (declMethodBinding != null
&& bodyMethodBinding != null
&& declMethodBinding.overrides(bodyMethodBinding)
&& !hasSignificantAnnotations(declMethodBinding)
&& haveSameModifiers(bodyMethodBinding, declMethodBinding)) {
if (Modifier.isProtected(declMethodBinding.getModifiers())
&& !declaredInSamePackage(bodyMethodBinding, declMethodBinding)) {
// protected also means package visibility, so check if it is required
if (!isMethodUsedInItsPackage(declMethodBinding, node)) {
this.ctx.getRefactorings().remove(node);
return DO_NOT_VISIT_SUBTREE;
}
} else {
this.ctx.getRefactorings().remove(node);
return DO_NOT_VISIT_SUBTREE;
}
}
}
}
return VISIT_SUBTREE;
}
/*
* @see ASTVisitor#visit(MethodDeclaration)
*/
public boolean visit(MethodDeclaration node) {
if (node.getJavadoc() != null) {
node.getJavadoc().accept(this);
}
if (node.getAST().apiLevel() >= AST.JLS3) {
printModifiers(node.modifiers());
if (!node.typeParameters().isEmpty()) {
this.fBuffer.append("<"); // $NON-NLS-1$
for (Iterator it = node.typeParameters().iterator(); it.hasNext(); ) {
TypeParameter t = (TypeParameter) it.next();
t.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append("> "); // $NON-NLS-1$
}
}
if (!node.isConstructor()) {
if (node.getReturnType2() != null) {
node.getReturnType2().accept(this);
} else {
// methods really ought to have a return type
this.fBuffer.append("void"); // $NON-NLS-1$
}
this.fBuffer.append(" "); // $NON-NLS-1$
}
node.getName().accept(this);
this.fBuffer.append("("); // $NON-NLS-1$
for (Iterator it = node.parameters().iterator(); it.hasNext(); ) {
SingleVariableDeclaration v = (SingleVariableDeclaration) it.next();
v.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append(")"); // $NON-NLS-1$
for (int i = 0; i < node.getExtraDimensions(); i++) {
this.fBuffer.append("[]"); // $NON-NLS-1$
}
if (!node.thrownExceptions().isEmpty()) {
this.fBuffer.append(" throws "); // $NON-NLS-1$
for (Iterator it = node.thrownExceptions().iterator(); it.hasNext(); ) {
Name n = (Name) it.next();
n.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append(" "); // $NON-NLS-1$
}
if (node.getBody() == null) {
this.fBuffer.append(";"); // $NON-NLS-1$
} else {
node.getBody().accept(this);
}
return false;
}
private static boolean canAddFinal(IBinding binding, ASTNode declNode) {
if (!(binding instanceof IVariableBinding)) return false;
IVariableBinding varbinding = (IVariableBinding) binding;
int modifiers = varbinding.getModifiers();
if (Modifier.isFinal(modifiers)
|| Modifier.isVolatile(modifiers)
|| Modifier.isTransient(modifiers)) return false;
ASTNode parent = ASTNodes.getParent(declNode, VariableDeclarationExpression.class);
if (parent != null && ((VariableDeclarationExpression) parent).fragments().size() > 1)
return false;
if (varbinding.isField() && !Modifier.isPrivate(modifiers)) return false;
if (varbinding.isParameter()) {
ASTNode varDecl = declNode.getParent();
if (varDecl instanceof MethodDeclaration) {
MethodDeclaration declaration = (MethodDeclaration) varDecl;
if (declaration.getBody() == null) return false;
}
}
return true;
}
private String generateMethodBody(MethodDeclaration m) {
String methodBody;
if (Modifier.isNative(m.getModifiers())) {
if (hasNativeCode(m, true)) {
methodBody = extractNativeMethodBody(m);
} else if (Options.generateNativeStubs()) {
return generateNativeStub(m);
} else {
return null;
}
} else if (Modifier.isAbstract(m.getModifiers())) {
// Generate a body which throws a NSInvalidArgumentException.
String body =
"{\n // can't call an abstract method\n " + "[self doesNotRecognizeSelector:_cmd];\n ";
if (!Types.isVoidType(m.getReturnType2())) {
body += "return 0;\n"; // Never executes, but avoids a gcc warning.
}
return body + "}";
} else {
// generate a normal method body
methodBody = generateStatement(m.getBody(), false);
}
boolean isStatic = (m.getModifiers() & Modifier.STATIC) != 0;
boolean isSynchronized = (m.getModifiers() & Modifier.SYNCHRONIZED) != 0;
if (isStatic && isSynchronized) {
methodBody = "{\n@synchronized([self class]) {\n" + methodBody + "}\n}\n";
} else if (isSynchronized) {
methodBody = "{\n@synchronized(self) {\n" + methodBody + "}\n}\n";
}
return methodBody;
}
private boolean callsWritingConstructor(
MethodDeclaration methodDeclaration,
HashSet writingConstructorBindings,
Set visitedMethodDeclarations) {
Block body = methodDeclaration.getBody();
if (body == null) return false;
List statements = body.statements();
if (statements.size() == 0) return false;
Statement statement = (Statement) statements.get(0);
if (!(statement instanceof ConstructorInvocation)) return false;
ConstructorInvocation invocation = (ConstructorInvocation) statement;
IMethodBinding constructorBinding = invocation.resolveConstructorBinding();
if (constructorBinding == null) return false;
if (writingConstructorBindings.contains(constructorBinding)) {
return true;
} else {
ASTNode declaration =
ASTNodes.findDeclaration(constructorBinding, methodDeclaration.getParent());
if (!(declaration instanceof MethodDeclaration)) return false;
if (visitedMethodDeclarations.contains(declaration)) {
return false;
}
visitedMethodDeclarations.add(methodDeclaration);
return callsWritingConstructor(
(MethodDeclaration) declaration, writingConstructorBindings, visitedMethodDeclarations);
}
}
/**
* Visits the method invocation to get number of assertion in this test method.
*
* @param md Visit method declaration in source code.
* @return False because we don't look into child nodes.
*/
public boolean visit(MethodDeclaration md) {
if (md.getName() != null) {
this.numOfMethods++;
if (md.getName().getIdentifier().startsWith("test")) {
this.numOfTestMethods++;
} else if (isJUnit4Test(md)) {
this.numOfTestMethods++;
}
// Check test method body to look for assertion statement.
Block methodBody = md.getBody();
if (methodBody != null && methodBody.statements() != null) {
List stmts = methodBody.statements();
this.numOfStatements += stmts.size();
// Looks through all statements in this method body.
for (Iterator i = stmts.iterator(); i.hasNext(); ) {
Statement stmt = (Statement) i.next(); // NOPMD
// MethodInvocation is one kind of expression statement.
if (stmt instanceof ExpressionStatement) {
ExpressionStatement estmt = (ExpressionStatement) stmt;
checkAssertions(estmt);
}
}
}
}
// No need to visit child nodes anymore.
return false;
}
private void printStaticInterface(
AbstractTypeDeclaration node,
String typeName,
List<FieldDeclaration> fields,
List<MethodDeclaration> methods) {
List<IVariableBinding> staticFields =
getStaticFieldsNeedingAccessors(fields, /* isInterface */ true);
if (staticFields.isEmpty()) {
if (!Options.stripReflection()) {
printf("\n@interface %s : NSObject\n@end\n", typeName);
} else {
return;
}
}
printf("\n@implementation %s\n\n", typeName);
printStaticVars(fields, /* isInterface */ true);
printStaticFieldAccessors(staticFields, methods);
for (MethodDeclaration method : methods) {
if (method.getBody() != null) {
printNormalMethod(method);
}
}
if (!Options.stripReflection()) {
printMetadata(node);
}
println("@end");
}
/*
* (non-Javadoc)
*
* @see org.eclipse.andmore.android.model.java.JavaClass#addComments()
*/
@Override
protected void addComments() throws AndroidException {
ASTNode todoComment;
ASTParser parser = ASTParser.newParser(AST.JLS3);
parser.setSource(document.get().toCharArray());
compUnit = (CompilationUnit) parser.createAST(null);
ast = compUnit.getAST();
rewrite = ASTRewrite.create(ast);
todoComment =
rewrite.createStringPlaceholder(
CodeUtilsNLS.MODEL_Common_ToDoPutYourCodeHere, ASTNode.EMPTY_STATEMENT);
TypeDeclaration receiverClass = (TypeDeclaration) compUnit.types().get(0);
MethodDeclaration method;
Block block;
// Adds the Override annotation and ToDo comment to all overridden
// methods
for (int i = 0; i < receiverClass.bodyDeclarations().size(); i++) {
method = (MethodDeclaration) receiverClass.bodyDeclarations().get(i);
// Adds the Override annotation
rewrite
.getListRewrite(method, method.getModifiersProperty())
.insertFirst(OVERRIDE_ANNOTATION, null);
// Adds the ToDo comment
block = method.getBody();
rewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY).insertFirst(todoComment, null);
}
try {
// Writes the modifications
TextEdit modifications = rewrite.rewriteAST(document, null);
modifications.apply(document);
} catch (IllegalArgumentException e) {
String errMsg = NLS.bind(CodeUtilsNLS.EXC_JavaClass_ErrorApplyingCommentsToCode, className);
AndmoreLogger.error(BroadcastReceiverClass.class, errMsg, e);
throw new AndroidException(errMsg);
} catch (MalformedTreeException e) {
String errMsg = NLS.bind(CodeUtilsNLS.EXC_JavaClass_ErrorApplyingCommentsToCode, className);
AndmoreLogger.error(BroadcastReceiverClass.class, errMsg, e);
throw new AndroidException(errMsg);
} catch (BadLocationException e) {
String errMsg = NLS.bind(CodeUtilsNLS.EXC_JavaClass_ErrorApplyingCommentsToCode, className);
AndmoreLogger.error(BroadcastReceiverClass.class, errMsg, e);
throw new AndroidException(errMsg);
}
}
@Test
public void testIsThrowStatementInCatchClause() {
TryStatement tryStatement;
CatchClause catchStatement;
// 測試 符合的例子 是否會抓出
MethodDeclaration md = null;
md = ASTNodeFinder.getMethodDeclarationNodeByName(compilationUnit, "false_throwAndPrint");
tryStatement = (TryStatement) md.getBody().statements().get(0);
catchStatement = (CatchClause) tryStatement.catchClauses().get(0);
assertTrue(dummyHandlerVisitor.isThrowStatementInCatchClause(catchStatement));
// 測試 不符合例子 是否會抓出
md =
ASTNodeFinder.getMethodDeclarationNodeByName(
compilationUnit, "true_DummyHandlerTryNestedTry");
tryStatement = (TryStatement) md.getBody().statements().get(1);
catchStatement = (CatchClause) tryStatement.catchClauses().get(0);
assertFalse(dummyHandlerVisitor.isThrowStatementInCatchClause(catchStatement));
}
@Override
protected void printStaticConstructorDeclaration(MethodDeclaration m) {
String className = NameTable.getFullName(Types.getMethodBinding(m).getDeclaringClass());
StringBuffer sb = new StringBuffer();
sb.append("{\nif (self == [" + className + " class]) {\n");
for (Statement statement : ASTUtil.getStatements(m.getBody())) {
sb.append(generateStatement(statement, false));
}
sb.append("}\n}");
print("+ (void)initialize " + reindent(sb.toString()) + "\n\n");
}
@Override
public boolean visit(MethodDeclaration node) {
Block body = node.getBody();
if (body == null) return false;
Selection selection = getSelection();
int nodeStart = body.getStartPosition();
int nodeExclusiveEnd = nodeStart + body.getLength();
// if selection node inside of the method body ignore method
if (!(nodeStart < selection.getOffset() && selection.getExclusiveEnd() < nodeExclusiveEnd))
return false;
return super.visit(node);
}
@Override
public boolean visit(final MethodDeclaration node) {
@SuppressWarnings("rawtypes")
final List l = node.getBody().statements();
this.b_last = node.getBody(); // use method's body as virtual last
if (l.size() == 0) {
this.b_init = this.b_last;
return false; // empty body
}
int i = 0; // we need to find the first actual SJ statement
while ((i != l.size()) && (l.get(i) instanceof VariableDeclarationStatement)) {
i++;
}
if (l.size() == i) {
this.b_init = this.b_last;
return false; // no SJ statements in body
} else {
this.b_init = (Statement) l.get(i); // first SJ statement
// add edge from last statement in method body to virtual b_last
addEdge(last(l), this.b_last);
}
return true;
}
@Override
protected String constructorDeclaration(MethodDeclaration m) {
String methodBody;
IMethodBinding binding = Types.getMethodBinding(m);
boolean memDebug = Options.memoryDebug();
List<Statement> statements = ASTUtil.getStatements(m.getBody());
if (binding.getDeclaringClass().isEnum()) {
return enumConstructorDeclaration(m, statements, binding);
}
StringBuffer sb = new StringBuffer("{\n");
int constructorIdx = findConstructorInvocation(statements);
int idx = 0;
while (idx < constructorIdx) {
sb.append(generateStatement(statements.get(idx++), false));
}
String superCall =
idx == constructorIdx ? generateStatement(statements.get(idx++), false) : "[super init]";
if (idx >= statements.size()) {
sb.append("return ");
if (memDebug) {
sb.append("JreMemDebugAdd(");
}
sb.append(superCall).append(memDebug ? ");\n}" : ";\n}");
} else {
sb.append("if (self = ").append(superCall).append(") {\n");
while (idx < statements.size()) {
sb.append(generateStatement(statements.get(idx++), false));
}
if (memDebug) {
sb.append("JreMemDebugAdd(self);\n");
}
sb.append("}\nreturn self;\n}");
}
methodBody = sb.toString();
if (invokedConstructors.contains(methodKey(binding))) {
return super.constructorDeclaration(m, true)
+ " "
+ reindent(methodBody)
+ "\n\n"
+ super.constructorDeclaration(m, false)
+ " {\n return "
+ generateStatement(createInnerConstructorInvocation(m), false)
+ ";\n}\n\n";
} else {
return super.constructorDeclaration(m, false) + " " + reindent(methodBody) + "\n\n";
}
}
protected List getFeatureMethodSwitch(String type) {
List cases = featureSwitchMap.get(type);
if (cases == null) {
MethodDeclaration method =
newMethodDeclaration(
"void",
type,
newSingleVariableDeclaration(FeatureDescriptor.class.getName(), "featureDesc"));
SwitchStatement switchStm =
newSwitchStatement(newMethodInvocation("featureDesc", "getOrdinal"));
method.getBody().statements().add(switchStm);
addBodyDeclaration(method);
featureSwitchMap.put(type, cases = switchStm.statements());
}
return cases;
}
/** Verify that an anonymous class is moved to the compilation unit's types list. */
public void testAnonymousClassExtracted() {
List<TypeDeclaration> types =
translateClassBody(
"Object test() { return new java.util.Enumeration<Object>() { "
+ "public boolean hasMoreElements() { return false; } "
+ "public Object nextElement() { return null; } }; }");
assertEquals(2, types.size());
TypeDeclaration type = types.get(1);
assertEquals("$1", type.getName().getIdentifier());
type = types.get(0);
assertEquals("Test", type.getName().getIdentifier());
MethodDeclaration testMethod = (MethodDeclaration) type.bodyDeclarations().get(0);
ReturnStatement stmt = (ReturnStatement) testMethod.getBody().statements().get(0);
ClassInstanceCreation expr = (ClassInstanceCreation) stmt.getExpression();
assertNull(expr.getAnonymousClassDeclaration());
}
protected List getEnumMethodSwitch(String type) {
if (enumCases == null) {
MethodDeclaration method =
newMethodDeclaration(
"void",
"wEntity",
newSingleVariableDeclaration(
newParameterizedType(EntityDescriptor.class.getName(), ast.newWildcardType()),
"entityDesc"),
newSingleVariableDeclaration(EnumValue.class.getName(), "value"));
SwitchStatement switchStm =
newSwitchStatement(newMethodInvocation("entityDesc", "getOrdinal"));
method.getBody().statements().add(switchStm);
addBodyDeclaration(method);
enumCases = switchStm.statements();
}
return enumCases;
}
protected List getMethodSwitch(String type) {
List cases = switchMap.get(type);
if (cases == null) {
MethodDeclaration method =
newMethodDeclaration(
"void",
type,
newSingleVariableDeclaration(
newParameterizedType(EntityDescriptor.class.getName(), ast.newWildcardType()),
"entityDesc"));
SwitchStatement switchStm =
newSwitchStatement(newMethodInvocation("entityDesc", "getOrdinal"));
method.getBody().statements().add(switchStm);
addBodyDeclaration(method);
switchMap.put(type, cases = switchStm.statements());
}
return cases;
}
@SuppressWarnings("unchecked")
public void removeUnallowedAssignments() {
CompilationUnit cu = catroidSource.getSourceAst();
final List<AbstractTypeDeclaration> types = cu.types();
assert types.size() > 0;
for (AbstractTypeDeclaration abstractTypeDecl : types) {
for (BodyDeclaration bodyDecl :
new ArrayList<BodyDeclaration>(abstractTypeDecl.bodyDeclarations())) {
if (bodyDecl.getNodeType() != ASTNode.METHOD_DECLARATION) {
continue;
}
MethodDeclaration methodDeclaration = (MethodDeclaration) bodyDecl;
Block body = methodDeclaration.getBody();
if ((body == null) || (body.statements().size() == 0)) {
continue;
}
methodDeclaration.accept(this);
}
}
}
/**
* Regression test: verify that a class passed in the constructor of an anonymous class is
* converted.
*/
public void testAnonymousClassWithTypeArgParameter() {
List<TypeDeclaration> types =
translateClassBody(
"public Test(Class c) {} static Test t = "
+ "new Test(Test.class) { @Override public int hashCode() { return 1; } };");
assertEquals(2, types.size());
TypeDeclaration type = types.get(0);
List<BodyDeclaration> members = type.bodyDeclarations();
for (BodyDeclaration member : members) {
if (member instanceof MethodDeclaration) {
MethodDeclaration m = (MethodDeclaration) member;
if (m.getName().getIdentifier().equals("initialize")) {
Block b = (Block) m.getBody().statements().get(0);
ExpressionStatement expStmt = (ExpressionStatement) b.statements().get(0);
Assignment assign = (Assignment) expStmt.getExpression();
ClassInstanceCreation create = (ClassInstanceCreation) assign.getRightHandSide();
assertTrue(create.arguments().get(0) instanceof TypeLiteral);
}
}
}
}
/*
* @see ASTVisitor#visit(MethodDeclaration)
*/
@Override
public boolean visit(MethodDeclaration node) {
if (!isAffected(node)) {
return false;
}
doVisitNode(node.getJavadoc());
doVisitChildren(node.modifiers());
doVisitChildren(node.typeParameters());
if (!node.isConstructor()) {
doVisitNode(node.getReturnType2());
}
// name not visited
int apiLevel = node.getAST().apiLevel();
if (apiLevel >= AST.JLS8) {
doVisitNode(node.getReceiverType());
}
// receiverQualifier not visited:
// Enclosing class names cannot be shadowed by an import (qualification is always redundant).
doVisitChildren(node.parameters());
if (apiLevel >= AST.JLS8) {
doVisitChildren(node.extraDimensions());
doVisitChildren(node.thrownExceptionTypes());
} else {
Iterator<Name> iter = getThrownExceptions(node).iterator();
while (iter.hasNext()) {
typeRefFound(iter.next());
}
}
if (!fSkipMethodBodies) {
doVisitNode(node.getBody());
}
return false;
}
/*
* @see ASTVisitor#visit(MethodDeclaration)
*/
@Override
public boolean visit(MethodDeclaration node) {
if (node.getJavadoc() != null) {
node.getJavadoc().accept(this);
}
if (node.getAST().apiLevel() >= JLS3) {
printModifiers(node.modifiers());
if (!node.typeParameters().isEmpty()) {
this.fBuffer.append("<"); // $NON-NLS-1$
for (Iterator<TypeParameter> it = node.typeParameters().iterator(); it.hasNext(); ) {
TypeParameter t = it.next();
t.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append("> "); // $NON-NLS-1$
}
}
if (!node.isConstructor()) {
if (node.getReturnType2() != null) {
node.getReturnType2().accept(this);
} else {
// methods really ought to have a return type
this.fBuffer.append("void"); // $NON-NLS-1$
}
this.fBuffer.append(" "); // $NON-NLS-1$
}
node.getName().accept(this);
this.fBuffer.append("("); // $NON-NLS-1$
if (node.getAST().apiLevel() >= AST.JLS8) {
Type receiverType = node.getReceiverType();
if (receiverType != null) {
receiverType.accept(this);
this.fBuffer.append(' ');
SimpleName qualifier = node.getReceiverQualifier();
if (qualifier != null) {
qualifier.accept(this);
this.fBuffer.append('.');
}
this.fBuffer.append("this"); // $NON-NLS-1$
if (node.parameters().size() > 0) {
this.fBuffer.append(',');
}
}
}
for (Iterator<SingleVariableDeclaration> it = node.parameters().iterator(); it.hasNext(); ) {
SingleVariableDeclaration v = it.next();
v.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append(")"); // $NON-NLS-1$
if (node.getAST().apiLevel() >= AST.JLS8) {
List<Dimension> dimensions = node.extraDimensions();
for (Iterator<Dimension> it = dimensions.iterator(); it.hasNext(); ) {
Dimension e = it.next();
e.accept(this);
}
} else {
for (int i = 0; i < node.getExtraDimensions(); i++) {
this.fBuffer.append("[]"); // $NON-NLS-1$
}
}
List<? extends ASTNode> thrownExceptions =
node.getAST().apiLevel() >= AST.JLS8
? node.thrownExceptionTypes()
: getThrownExceptions(node);
if (!thrownExceptions.isEmpty()) {
this.fBuffer.append(" throws "); // $NON-NLS-1$
for (Iterator<? extends ASTNode> it = thrownExceptions.iterator(); it.hasNext(); ) {
ASTNode n = it.next();
n.accept(this);
if (it.hasNext()) {
this.fBuffer.append(", "); // $NON-NLS-1$
}
}
this.fBuffer.append(" "); // $NON-NLS-1$
}
if (node.getBody() == null) {
this.fBuffer.append(";"); // $NON-NLS-1$
} else {
node.getBody().accept(this);
}
return false;
}
public void testASTRewriteExample() throws Exception {
// create a new project
IProject project = ResourcesPlugin.getWorkspace().getRoot().getProject("Test");
project.create(null);
project.open(null);
try {
// set the Java nature and Java build path
IProjectDescription description = project.getDescription();
description.setNatureIds(new String[] {JavaCore.NATURE_ID});
project.setDescription(description, null);
IJavaProject javaProject = JavaCore.create(project);
// build path is: project as source folder and JRE container
IClasspathEntry[] cpentry =
new IClasspathEntry[] {
JavaCore.newSourceEntry(javaProject.getPath()),
JavaRuntime.getDefaultJREContainerEntry()
};
javaProject.setRawClasspath(cpentry, javaProject.getPath(), null);
Map<String, String> options = new HashMap<>();
options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "4");
javaProject.setOptions(options);
// create a test file
IPackageFragmentRoot root = javaProject.getPackageFragmentRoot(project);
IPackageFragment pack1 = root.createPackageFragment("test1", false, null);
StringBuffer buf = new StringBuffer();
buf.append("package test1;\n");
buf.append("public class E {\n");
buf.append(" public void foo(int i) {\n");
buf.append(" while (--i > 0) {\n");
buf.append(" System.beep();\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append("}\n");
ICompilationUnit cu = pack1.createCompilationUnit("E.java", buf.toString(), false, null);
// create an AST
ASTParser parser = ASTParser.newParser(IASTSharedValues.SHARED_AST_LEVEL);
parser.setSource(cu);
parser.setResolveBindings(false);
CompilationUnit astRoot = (CompilationUnit) parser.createAST(null);
AST ast = astRoot.getAST();
// create the descriptive ast rewriter
ASTRewrite rewrite = ASTRewrite.create(ast);
// get the block node that contains the statements in the method body
TypeDeclaration typeDecl = (TypeDeclaration) astRoot.types().get(0);
MethodDeclaration methodDecl = typeDecl.getMethods()[0];
Block block = methodDecl.getBody();
// create new statements to insert
MethodInvocation newInv1 = ast.newMethodInvocation();
newInv1.setName(ast.newSimpleName("bar1"));
Statement newStatement1 = ast.newExpressionStatement(newInv1);
MethodInvocation newInv2 = ast.newMethodInvocation();
newInv2.setName(ast.newSimpleName("bar2"));
Statement newStatement2 = ast.newExpressionStatement(newInv2);
// describe that the first node is inserted as first statement in block, the other one as last
// statement
// note: AST is not modified by this
ListRewrite listRewrite = rewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY);
listRewrite.insertFirst(newStatement1, null);
listRewrite.insertLast(newStatement2, null);
// evaluate the text edits corresponding to the described changes. AST and CU still
// unmodified.
TextEdit res = rewrite.rewriteAST();
// apply the text edits to the compilation unit
Document document = new Document(cu.getSource());
res.apply(document);
cu.getBuffer().setContents(document.get());
// test result
String preview = cu.getSource();
buf = new StringBuffer();
buf.append("package test1;\n");
buf.append("public class E {\n");
buf.append(" public void foo(int i) {\n");
buf.append(" bar1();\n");
buf.append(" while (--i > 0) {\n");
buf.append(" System.beep();\n");
buf.append(" }\n");
buf.append(" bar2();\n");
buf.append(" }\n");
buf.append("}\n");
assertEquals(preview, buf.toString());
} finally {
project.delete(true, null);
}
}
private Example makeExample(
MethodDeclaration node,
Set<? extends Expression> envolvedInvocations,
List<ApiMethod> envolvedApiMethods) {
// Visitor responsável por realizar o slicing de programas
SlicingStatementVisitor visitor =
new SlicingStatementVisitor(node, new HashSet<ASTNode>(envolvedInvocations));
node.accept(visitor);
Collection<Statement> relatedStatements = visitor.getSlicedStatements();
ASTNode newAST =
ASTUtil.copyStatements(node.getBody(), relatedStatements, AST.newAST(AST.JLS3));
if (!relatedStatements.isEmpty()) {
LOGGER.error("Some statements were not included!");
}
if (newAST == null) {
LOGGER.error("Slicing process failed for node ");
// TODO Se AST retornada for nula é porque faltou incluir statement(s)
return null;
} else if (((Block) newAST).statements().isEmpty()) {
LOGGER.error("Slicing process failed for node ");
// TODO Se o Block retornado for vazio é porque faltou incluir statement(s)
return null;
}
ASTUtil.removeEmptyBlocks((Block) newAST);
// Adiciona declarações de variáveis que não foram encontradas no escopo do método
// Para facilitar, tipos iguais são declarados no mesmo Statement
Set<String> additionalDeclarationLines = new HashSet<String>();
Map<ITypeBinding, List<IVariableBinding>> typesMap =
new HashMap<ITypeBinding, List<IVariableBinding>>();
for (IVariableBinding ivb : visitor.getUndiscoveredDeclarations()) {
if (!typesMap.containsKey(ivb.getType())) {
typesMap.put(ivb.getType(), new ArrayList<IVariableBinding>(2));
}
typesMap.get(ivb.getType()).add(ivb);
}
for (ITypeBinding typeBinding : typesMap.keySet()) {
List<IVariableBinding> variableBindings = typesMap.get(typeBinding);
Stack<VariableDeclarationFragment> fragments = new Stack<VariableDeclarationFragment>();
for (IVariableBinding ivb : variableBindings) {
VariableDeclarationFragment declarationFragment =
newAST.getAST().newVariableDeclarationFragment();
declarationFragment.setName(newAST.getAST().newSimpleName(ivb.getName()));
fragments.add(declarationFragment);
}
VariableDeclarationStatement statement =
newAST.getAST().newVariableDeclarationStatement(fragments.pop());
while (!fragments.isEmpty()) {
statement.fragments().add(fragments.pop());
}
statement.setType(this.getType(typeBinding, newAST.getAST()));
additionalDeclarationLines.add(statement.toString());
((Block) newAST).statements().add(0, statement);
}
Example example = new Example();
example.setAttachment(this.attachmentMap.get(node.getRoot()));
example.setApiMethods(new HashSet<ApiElement>(envolvedApiMethods));
example.setImports(visitor.getImports());
for (Expression seed : envolvedInvocations) {
example.getSeeds().add(seed.toString());
}
example.setSourceMethod(node.toString());
example.setAddedAt(new Date(System.currentTimeMillis()));
try {
IMethodBinding nodeBinding = node.resolveBinding();
if (!this.methodMap.containsKey(nodeBinding)) {
ApiClass newApiClass = new ApiClass(nodeBinding.getDeclaringClass().getQualifiedName());
methodDeclarationHandler(node, newApiClass);
}
example.setSourceMethodCall(this.methodMap.get(nodeBinding).getFullName());
} catch (Exception e) {
LOGGER.error(e);
if (example.getSourceMethodCall() == null) {
example.setSourceMethodCall("?");
}
}
String codeExample = newAST.toString();
for (String line : additionalDeclarationLines) {
codeExample =
codeExample.replace(
line,
line.replace("\n", "").concat(" ").concat("//initialized previously").concat("\n"));
}
// FIXME
codeExample = codeExample.replaceAll("(\\{\n)(\\s+)(\\})", "$1 //do something \n$3");
try {
example.setCodeExample(codeExample);
example.setFormattedCodeExample(ASTUtil.codeFormatter(codeExample));
} catch (Exception e) {
LOGGER.error(e);
if (example.getFormattedCodeExample() == null) {
example.setFormattedCodeExample(codeExample);
}
}
// TODO Obter métricas do exemplo
example
.getMetrics()
.put(ExampleMetric.LOC.name(), example.getFormattedCodeExample().split("\n").length - 1);
example.getMetrics().put(ExampleMetric.ARGUMENTS.name(), visitor.getNumberOfArguments());
example
.getMetrics()
.put(ExampleMetric.DECISION_STATEMENTS.name(), visitor.getNumberOfDecisionStatements());
example.getMetrics().put(ExampleMetric.INVOCATIONS.name(), visitor.getNumberOfInvocations());
example
.getMetrics()
.put(ExampleMetric.NULL_ARGUMENTS.name(), visitor.getNumberOfNullArguments());
example
.getMetrics()
.put(ExampleMetric.PRIMITIVE_ARGUMENTS.name(), visitor.getNumberOfPrimitiveArguments());
example
.getMetrics()
.put(ExampleMetric.FIELD_ARGUMENTS.name(), visitor.getNumberOfFieldArguments());
example
.getMetrics()
.put(
ExampleMetric.UNDISCOVERED_DECLARATIONS.name(),
visitor.getNumberOfUndiscoveredDeclarations());
example
.getMetrics()
.put(ExampleMetric.UNHANDLED_EXCEPTIONS.name(), visitor.getNumberOfUnhandledExceptions());
return example;
}
private List<ClassObject> parseAST(CompilationUnit compilationUnit, IFile iFile) {
List<ClassObject> classObjects = new ArrayList<ClassObject>();
List<AbstractTypeDeclaration> topLevelTypeDeclarations = compilationUnit.types();
for (AbstractTypeDeclaration abstractTypeDeclaration : topLevelTypeDeclarations) {
if (abstractTypeDeclaration instanceof TypeDeclaration) {
TypeDeclaration topLevelTypeDeclaration = (TypeDeclaration) abstractTypeDeclaration;
List<TypeDeclaration> typeDeclarations = new ArrayList<TypeDeclaration>();
typeDeclarations.add(topLevelTypeDeclaration);
typeDeclarations.addAll(getRecursivelyInnerTypes(topLevelTypeDeclaration));
for (TypeDeclaration typeDeclaration : typeDeclarations) {
final ClassObject classObject = new ClassObject();
classObject.setIFile(iFile);
classObject.setName(typeDeclaration.resolveBinding().getQualifiedName());
classObject.setTypeDeclaration(typeDeclaration);
if (typeDeclaration.isInterface()) {
classObject.setInterface(true);
}
int modifiers = typeDeclaration.getModifiers();
if ((modifiers & Modifier.ABSTRACT) != 0) classObject.setAbstract(true);
if ((modifiers & Modifier.PUBLIC) != 0) classObject.setAccess(Access.PUBLIC);
else if ((modifiers & Modifier.PROTECTED) != 0) classObject.setAccess(Access.PROTECTED);
else if ((modifiers & Modifier.PRIVATE) != 0) classObject.setAccess(Access.PRIVATE);
else classObject.setAccess(Access.NONE);
if ((modifiers & Modifier.STATIC) != 0) classObject.setStatic(true);
Type superclassType = typeDeclaration.getSuperclassType();
if (superclassType != null) {
ITypeBinding binding = superclassType.resolveBinding();
String qualifiedName = binding.getQualifiedName();
TypeObject typeObject = TypeObject.extractTypeObject(qualifiedName);
classObject.setSuperclass(typeObject);
}
List<Type> superInterfaceTypes = typeDeclaration.superInterfaceTypes();
for (Type interfaceType : superInterfaceTypes) {
ITypeBinding binding = interfaceType.resolveBinding();
String qualifiedName = binding.getQualifiedName();
TypeObject typeObject = TypeObject.extractTypeObject(qualifiedName);
classObject.addInterface(typeObject);
}
FieldDeclaration[] fieldDeclarations = typeDeclaration.getFields();
for (FieldDeclaration fieldDeclaration : fieldDeclarations) {
Type fieldType = fieldDeclaration.getType();
ITypeBinding binding = fieldType.resolveBinding();
List<VariableDeclarationFragment> fragments = fieldDeclaration.fragments();
for (VariableDeclarationFragment fragment : fragments) {
String qualifiedName = binding.getQualifiedName();
TypeObject typeObject = TypeObject.extractTypeObject(qualifiedName);
typeObject.setArrayDimension(
typeObject.getArrayDimension() + fragment.getExtraDimensions());
FieldObject fieldObject =
new FieldObject(typeObject, fragment.getName().getIdentifier());
fieldObject.setClassName(classObject.getName());
fieldObject.setVariableDeclarationFragment(fragment);
int fieldModifiers = fieldDeclaration.getModifiers();
if ((fieldModifiers & Modifier.PUBLIC) != 0) fieldObject.setAccess(Access.PUBLIC);
else if ((fieldModifiers & Modifier.PROTECTED) != 0)
fieldObject.setAccess(Access.PROTECTED);
else if ((fieldModifiers & Modifier.PRIVATE) != 0)
fieldObject.setAccess(Access.PRIVATE);
else fieldObject.setAccess(Access.NONE);
if ((fieldModifiers & Modifier.STATIC) != 0) fieldObject.setStatic(true);
classObject.addField(fieldObject);
}
}
MethodDeclaration[] methodDeclarations = typeDeclaration.getMethods();
for (MethodDeclaration methodDeclaration : methodDeclarations) {
String methodName = methodDeclaration.getName().getIdentifier();
final ConstructorObject constructorObject = new ConstructorObject();
constructorObject.setMethodDeclaration(methodDeclaration);
constructorObject.setName(methodName);
constructorObject.setClassName(classObject.getName());
int methodModifiers = methodDeclaration.getModifiers();
if ((methodModifiers & Modifier.PUBLIC) != 0)
constructorObject.setAccess(Access.PUBLIC);
else if ((methodModifiers & Modifier.PROTECTED) != 0)
constructorObject.setAccess(Access.PROTECTED);
else if ((methodModifiers & Modifier.PRIVATE) != 0)
constructorObject.setAccess(Access.PRIVATE);
else constructorObject.setAccess(Access.NONE);
List<SingleVariableDeclaration> parameters = methodDeclaration.parameters();
for (SingleVariableDeclaration parameter : parameters) {
Type parameterType = parameter.getType();
ITypeBinding binding = parameterType.resolveBinding();
String qualifiedName = binding.getQualifiedName();
TypeObject typeObject = TypeObject.extractTypeObject(qualifiedName);
typeObject.setArrayDimension(
typeObject.getArrayDimension() + parameter.getExtraDimensions());
if (parameter.isVarargs()) {
typeObject.setArrayDimension(1);
}
ParameterObject parameterObject =
new ParameterObject(typeObject, parameter.getName().getIdentifier());
parameterObject.setSingleVariableDeclaration(parameter);
constructorObject.addParameter(parameterObject);
}
Block methodBody = methodDeclaration.getBody();
if (methodBody != null) {
MethodBodyObject methodBodyObject = new MethodBodyObject(methodBody);
constructorObject.setMethodBody(methodBodyObject);
}
if (methodDeclaration.isConstructor()) {
classObject.addConstructor(constructorObject);
} else {
MethodObject methodObject = new MethodObject(constructorObject);
List<IExtendedModifier> extendedModifiers = methodDeclaration.modifiers();
for (IExtendedModifier extendedModifier : extendedModifiers) {
if (extendedModifier.isAnnotation()) {
Annotation annotation = (Annotation) extendedModifier;
if (annotation.getTypeName().getFullyQualifiedName().equals("Test")) {
methodObject.setTestAnnotation(true);
break;
}
}
}
Type returnType = methodDeclaration.getReturnType2();
ITypeBinding binding = returnType.resolveBinding();
String qualifiedName = binding.getQualifiedName();
TypeObject typeObject = TypeObject.extractTypeObject(qualifiedName);
methodObject.setReturnType(typeObject);
if ((methodModifiers & Modifier.ABSTRACT) != 0) methodObject.setAbstract(true);
if ((methodModifiers & Modifier.STATIC) != 0) methodObject.setStatic(true);
if ((methodModifiers & Modifier.SYNCHRONIZED) != 0)
methodObject.setSynchronized(true);
if ((methodModifiers & Modifier.NATIVE) != 0) methodObject.setNative(true);
classObject.addMethod(methodObject);
FieldInstructionObject fieldInstruction = methodObject.isGetter();
if (fieldInstruction != null)
systemObject.addGetter(methodObject.generateMethodInvocation(), fieldInstruction);
fieldInstruction = methodObject.isSetter();
if (fieldInstruction != null)
systemObject.addSetter(methodObject.generateMethodInvocation(), fieldInstruction);
fieldInstruction = methodObject.isCollectionAdder();
if (fieldInstruction != null)
systemObject.addCollectionAdder(
methodObject.generateMethodInvocation(), fieldInstruction);
MethodInvocationObject methodInvocation = methodObject.isDelegate();
if (methodInvocation != null)
systemObject.addDelegate(methodObject.generateMethodInvocation(), methodInvocation);
}
}
classObjects.add(classObject);
}
}
}
return classObjects;
}
/*(non-Javadoc)
* @see org.eclipse.jdt.internal.ui.text.correction.ASTRewriteCorrectionProposal#getRewrite()
*/
@Override
protected ASTRewrite getRewrite() {
AST ast = fMethodDecl.getAST();
ITypeBinding returnBinding = getReturnTypeBinding();
if (fExistingReturn != null) {
ASTRewrite rewrite = ASTRewrite.create(ast);
Expression expression =
evaluateReturnExpressions(ast, returnBinding, fExistingReturn.getStartPosition());
if (expression != null) {
rewrite.set(fExistingReturn, ReturnStatement.EXPRESSION_PROPERTY, expression, null);
addLinkedPosition(rewrite.track(expression), true, RETURN_EXPRESSION_KEY);
}
return rewrite;
} else {
ASTRewrite rewrite = ASTRewrite.create(ast);
Block block = fMethodDecl.getBody();
List<Statement> statements = block.statements();
int nStatements = statements.size();
ASTNode lastStatement = null;
if (nStatements > 0) {
lastStatement = statements.get(nStatements - 1);
}
if (returnBinding != null
&& lastStatement instanceof ExpressionStatement
&& lastStatement.getNodeType() != ASTNode.ASSIGNMENT) {
Expression expression = ((ExpressionStatement) lastStatement).getExpression();
ITypeBinding binding = expression.resolveTypeBinding();
if (binding != null && binding.isAssignmentCompatible(returnBinding)) {
Expression placeHolder = (Expression) rewrite.createMoveTarget(expression);
ReturnStatement returnStatement = ast.newReturnStatement();
returnStatement.setExpression(placeHolder);
rewrite.replace(lastStatement, returnStatement, null);
return rewrite;
}
}
int offset;
if (lastStatement == null) {
offset = block.getStartPosition() + 1;
} else {
offset = lastStatement.getStartPosition() + lastStatement.getLength();
}
ReturnStatement returnStatement = ast.newReturnStatement();
Expression expression = evaluateReturnExpressions(ast, returnBinding, offset);
returnStatement.setExpression(expression);
rewrite.getListRewrite(block, Block.STATEMENTS_PROPERTY).insertLast(returnStatement, null);
addLinkedPosition(
rewrite.track(returnStatement.getExpression()), true, RETURN_EXPRESSION_KEY);
return rewrite;
}
}
@Override
protected void generate(EnumDeclaration node) {
List<EnumConstantDeclaration> constants = ASTUtil.getEnumConstants(node);
List<MethodDeclaration> methods = Lists.newArrayList();
List<FieldDeclaration> fields = Lists.newArrayList();
MethodDeclaration initializeMethod = null;
for (BodyDeclaration decl : ASTUtil.getBodyDeclarations(node)) {
if (decl instanceof FieldDeclaration) {
fields.add((FieldDeclaration) decl);
} else if (decl instanceof MethodDeclaration) {
MethodDeclaration md = (MethodDeclaration) decl;
if (md.getName().getIdentifier().equals("initialize")) {
initializeMethod = md;
} else {
methods.add(md);
}
}
}
syncLineNumbers(node.getName()); // avoid doc-comment
String typeName = NameTable.getFullName(node);
newline();
for (EnumConstantDeclaration constant : constants) {
IVariableBinding var = Types.getVariableBinding(constant.getName());
printf("static %s *%s;\n", typeName, NameTable.getStaticVarQualifiedName(var));
}
printf("IOSObjectArray *%s_values;\n", typeName);
newline();
printf("@implementation %s\n\n", typeName);
printStaticVars(fields, /* isInterface */ false);
printStaticReferencesMethod(fields, typeName + "_values");
for (EnumConstantDeclaration constant : constants) {
String name = NameTable.getName(constant.getName());
printf("+ (%s *)%s {\n", typeName, name);
printf(" return %s_%s;\n", typeName, name);
println("}");
}
newline();
// Enum constants needs to implement NSCopying. Being singletons, they
// can just return self, as long the retain count is incremented.
String selfString = Options.useReferenceCounting() ? "[self retain]" : "self";
printf("- (id)copyWithZone:(NSZone *)zone {\n return %s;\n}\n\n", selfString);
printStaticFieldAccessors(fields, methods, /* isInterface */ false);
printMethodsAndOcni(node, methods, blockComments.get(node));
printf("+ (void)initialize {\n if (self == [%s class]) {\n", typeName);
for (int i = 0; i < constants.size(); i++) {
EnumConstantDeclaration constant = constants.get(i);
List<Expression> args = ASTUtil.getArguments(constant);
String name = NameTable.getName(constant.getName());
String constantTypeName =
NameTable.getFullName(Types.getMethodBinding(constant).getDeclaringClass());
printf(" %s_%s = [[%s alloc] init", typeName, name, constantTypeName);
if (args.isEmpty()) {
print("With");
} else {
print(
StatementGenerator.generateArguments(
Types.getMethodBinding(constant),
args,
fieldHiders,
getBuilder().getSourcePosition()));
print(" with");
}
printf("NSString:@\"%s\" withInt:%d];\n", name, i);
}
printf(" %s_values = [[IOSObjectArray alloc] initWithObjects:(id[]){ ", typeName);
for (EnumConstantDeclaration constant : constants) {
printf("%s_%s, ", typeName, NameTable.getName(constant.getName()));
}
printf(
"nil } count:%d type:[IOSClass classWithClass:[%s class]]];\n", constants.size(), typeName);
if (initializeMethod != null) {
for (Statement s : ASTUtil.getStatements(initializeMethod.getBody())) {
printf(
" %s",
StatementGenerator.generate(s, fieldHiders, false, getBuilder().getSourcePosition()));
}
}
println(" }\n}\n");
// Print generated values and valueOf methods.
println("+ (IOSObjectArray *)values {");
printf(" return [IOSObjectArray arrayWithArray:%s_values];\n", typeName);
println("}\n");
printf("+ (%s *)valueOfWithNSString:(NSString *)name {\n", typeName);
printf(" for (int i = 0; i < [%s_values count]; i++) {\n", typeName);
printf(" %s *e = %s_values->buffer_[i];\n", typeName, typeName);
printf(" if ([name isEqual:[e name]]) {\n");
printf(" return e;\n");
printf(" }\n");
printf(" }\n");
if (Options.useReferenceCounting()) {
printf(
" @throw [[[JavaLangIllegalArgumentException alloc] initWithNSString:name]"
+ " autorelease];\n");
} else {
printf(" @throw [[JavaLangIllegalArgumentException alloc] initWithNSString:name];\n");
}
printf(" return nil;\n");
println("}\n");
if (!Options.stripReflection()) {
printTypeAnnotationsMethod(node);
printMetadata(node);
}
println("@end");
}
