use of org.eclipse.jdt.core.dom.AST in project che by eclipse.
the class GetterSetterUtil method getAssignedValue.
/**
* Converts an assignment, postfix expression or prefix expression into an assignable equivalent expression using the getter.
*
* @param node the assignment/prefix/postfix node
* @param astRewrite the astRewrite to use
* @param getterExpression the expression to insert for read accesses or <code>null</code> if such an expression does not exist
* @param variableType the type of the variable that the result will be assigned to
* @param is50OrHigher <code>true</code> if a 5.0 or higher environment can be used
* @return an expression that can be assigned to the type variableType with node being replaced by a equivalent expression using the getter
*/
public static Expression getAssignedValue(ASTNode node, ASTRewrite astRewrite, Expression getterExpression, ITypeBinding variableType, boolean is50OrHigher) {
InfixExpression.Operator op = null;
AST ast = astRewrite.getAST();
if (isNotInBlock(node))
return null;
if (node.getNodeType() == ASTNode.ASSIGNMENT) {
Assignment assignment = ((Assignment) node);
Expression rightHandSide = assignment.getRightHandSide();
Expression copiedRightOp = (Expression) astRewrite.createCopyTarget(rightHandSide);
if (assignment.getOperator() == Operator.ASSIGN) {
ITypeBinding rightHandSideType = rightHandSide.resolveTypeBinding();
copiedRightOp = createNarrowCastIfNessecary(copiedRightOp, rightHandSideType, ast, variableType, is50OrHigher);
return copiedRightOp;
}
if (getterExpression != null) {
InfixExpression infix = ast.newInfixExpression();
infix.setLeftOperand(getterExpression);
infix.setOperator(ASTNodes.convertToInfixOperator(assignment.getOperator()));
ITypeBinding infixType = infix.resolveTypeBinding();
if (NecessaryParenthesesChecker.needsParenthesesForRightOperand(rightHandSide, infix, variableType)) {
ParenthesizedExpression p = ast.newParenthesizedExpression();
p.setExpression(copiedRightOp);
copiedRightOp = p;
}
infix.setRightOperand(copiedRightOp);
return createNarrowCastIfNessecary(infix, infixType, ast, variableType, is50OrHigher);
}
} else if (node.getNodeType() == ASTNode.POSTFIX_EXPRESSION) {
PostfixExpression po = (PostfixExpression) node;
if (po.getOperator() == PostfixExpression.Operator.INCREMENT)
op = InfixExpression.Operator.PLUS;
if (po.getOperator() == PostfixExpression.Operator.DECREMENT)
op = InfixExpression.Operator.MINUS;
} else if (node.getNodeType() == ASTNode.PREFIX_EXPRESSION) {
PrefixExpression pe = (PrefixExpression) node;
if (pe.getOperator() == PrefixExpression.Operator.INCREMENT)
op = InfixExpression.Operator.PLUS;
if (pe.getOperator() == PrefixExpression.Operator.DECREMENT)
op = InfixExpression.Operator.MINUS;
}
if (op != null && getterExpression != null) {
return createInfixInvocationFromPostPrefixExpression(op, getterExpression, ast, variableType, is50OrHigher);
}
return null;
}
use of org.eclipse.jdt.core.dom.AST in project che by eclipse.
the class StubUtility2 method createConstructorStub.
public static MethodDeclaration createConstructorStub(ICompilationUnit unit, ASTRewrite rewrite, ImportRewrite imports, ImportRewriteContext context, ITypeBinding typeBinding, IMethodBinding superConstructor, IVariableBinding[] variableBindings, int modifiers, CodeGenerationSettings settings) throws CoreException {
AST ast = rewrite.getAST();
MethodDeclaration decl = ast.newMethodDeclaration();
decl.modifiers().addAll(ASTNodeFactory.newModifiers(ast, modifiers & ~Modifier.ABSTRACT & ~Modifier.NATIVE));
decl.setName(ast.newSimpleName(typeBinding.getName()));
decl.setConstructor(true);
List<SingleVariableDeclaration> parameters = decl.parameters();
if (superConstructor != null) {
createTypeParameters(imports, context, ast, superConstructor, decl);
createParameters(unit.getJavaProject(), imports, context, ast, superConstructor, null, decl);
createThrownExceptions(decl, superConstructor, imports, context, ast);
}
Block body = ast.newBlock();
decl.setBody(body);
String delimiter = StubUtility.getLineDelimiterUsed(unit);
if (superConstructor != null) {
SuperConstructorInvocation invocation = ast.newSuperConstructorInvocation();
SingleVariableDeclaration varDecl = null;
for (Iterator<SingleVariableDeclaration> iterator = parameters.iterator(); iterator.hasNext(); ) {
varDecl = iterator.next();
invocation.arguments().add(ast.newSimpleName(varDecl.getName().getIdentifier()));
}
body.statements().add(invocation);
}
List<String> prohibited = new ArrayList<String>();
for (final Iterator<SingleVariableDeclaration> iterator = parameters.iterator(); iterator.hasNext(); ) prohibited.add(iterator.next().getName().getIdentifier());
String param = null;
List<String> list = new ArrayList<String>(prohibited);
String[] excluded = null;
for (int i = 0; i < variableBindings.length; i++) {
SingleVariableDeclaration var = ast.newSingleVariableDeclaration();
var.setType(imports.addImport(variableBindings[i].getType(), ast, context));
excluded = new String[list.size()];
list.toArray(excluded);
param = suggestParameterName(unit, variableBindings[i], excluded);
list.add(param);
var.setName(ast.newSimpleName(param));
parameters.add(var);
}
list = new ArrayList<String>(prohibited);
for (int i = 0; i < variableBindings.length; i++) {
excluded = new String[list.size()];
list.toArray(excluded);
final String paramName = suggestParameterName(unit, variableBindings[i], excluded);
list.add(paramName);
final String fieldName = variableBindings[i].getName();
Expression expression = null;
if (paramName.equals(fieldName) || settings.useKeywordThis) {
FieldAccess access = ast.newFieldAccess();
access.setExpression(ast.newThisExpression());
access.setName(ast.newSimpleName(fieldName));
expression = access;
} else
expression = ast.newSimpleName(fieldName);
Assignment assignment = ast.newAssignment();
assignment.setLeftHandSide(expression);
assignment.setRightHandSide(ast.newSimpleName(paramName));
assignment.setOperator(Assignment.Operator.ASSIGN);
body.statements().add(ast.newExpressionStatement(assignment));
}
if (settings != null && settings.createComments) {
String string = CodeGeneration.getMethodComment(unit, typeBinding.getName(), decl, superConstructor, delimiter);
if (string != null) {
Javadoc javadoc = (Javadoc) rewrite.createStringPlaceholder(string, ASTNode.JAVADOC);
decl.setJavadoc(javadoc);
}
}
return decl;
}
use of org.eclipse.jdt.core.dom.AST in project che by eclipse.
the class ReturnTypeSubProcessor method addMissingReturnStatementProposals.
public static void addMissingReturnStatementProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
ICompilationUnit cu = context.getCompilationUnit();
ASTNode selectedNode = problem.getCoveringNode(context.getASTRoot());
if (selectedNode == null) {
return;
}
ReturnStatement existingStatement = (selectedNode instanceof ReturnStatement) ? (ReturnStatement) selectedNode : null;
// Lambda Expression can be in a MethodDeclaration or a Field Declaration
if (selectedNode instanceof LambdaExpression) {
MissingReturnTypeInLambdaCorrectionProposal proposal = new MissingReturnTypeInLambdaCorrectionProposal(cu, (LambdaExpression) selectedNode, existingStatement, IProposalRelevance.MISSING_RETURN_TYPE);
proposals.add(proposal);
} else {
BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
if (decl instanceof MethodDeclaration) {
MethodDeclaration methodDecl = (MethodDeclaration) decl;
Block block = methodDecl.getBody();
if (block == null) {
return;
}
proposals.add(new MissingReturnTypeCorrectionProposal(cu, methodDecl, existingStatement, IProposalRelevance.MISSING_RETURN_TYPE));
Type returnType = methodDecl.getReturnType2();
if (returnType != null && !"void".equals(ASTNodes.asString(returnType))) {
//$NON-NLS-1$
AST ast = methodDecl.getAST();
ASTRewrite rewrite = ASTRewrite.create(ast);
rewrite.replace(returnType, ast.newPrimitiveType(PrimitiveType.VOID), null);
Javadoc javadoc = methodDecl.getJavadoc();
if (javadoc != null) {
TagElement tagElement = JavadocTagsSubProcessor.findTag(javadoc, TagElement.TAG_RETURN, null);
if (tagElement != null) {
rewrite.remove(tagElement, null);
}
}
String label = CorrectionMessages.ReturnTypeSubProcessor_changetovoid_description;
Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, cu, rewrite, IProposalRelevance.CHANGE_RETURN_TYPE_TO_VOID, image);
proposals.add(proposal);
}
}
}
}
use of org.eclipse.jdt.core.dom.AST in project che by eclipse.
the class ReturnTypeSubProcessor method addMissingReturnTypeProposals.
public static void addMissingReturnTypeProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
ICompilationUnit cu = context.getCompilationUnit();
CompilationUnit astRoot = context.getASTRoot();
ASTNode selectedNode = problem.getCoveringNode(astRoot);
if (selectedNode == null) {
return;
}
BodyDeclaration decl = ASTResolving.findParentBodyDeclaration(selectedNode);
if (decl instanceof MethodDeclaration) {
MethodDeclaration methodDeclaration = (MethodDeclaration) decl;
ReturnStatementCollector eval = new ReturnStatementCollector();
decl.accept(eval);
AST ast = astRoot.getAST();
ITypeBinding typeBinding = eval.getTypeBinding(decl.getAST());
typeBinding = Bindings.normalizeTypeBinding(typeBinding);
if (typeBinding == null) {
//$NON-NLS-1$
typeBinding = ast.resolveWellKnownType("void");
}
if (typeBinding.isWildcardType()) {
typeBinding = ASTResolving.normalizeWildcardType(typeBinding, true, ast);
}
ASTRewrite rewrite = ASTRewrite.create(ast);
String label = Messages.format(CorrectionMessages.ReturnTypeSubProcessor_missingreturntype_description, BindingLabelProvider.getBindingLabel(typeBinding, BindingLabelProvider.DEFAULT_TEXTFLAGS));
Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
LinkedCorrectionProposal proposal = new LinkedCorrectionProposal(label, cu, rewrite, IProposalRelevance.MISSING_RETURN_TYPE, image);
ImportRewrite imports = proposal.createImportRewrite(astRoot);
ImportRewriteContext importRewriteContext = new ContextSensitiveImportRewriteContext(decl, imports);
Type type = imports.addImport(typeBinding, ast, importRewriteContext);
rewrite.set(methodDeclaration, MethodDeclaration.RETURN_TYPE2_PROPERTY, type, null);
rewrite.set(methodDeclaration, MethodDeclaration.CONSTRUCTOR_PROPERTY, Boolean.FALSE, null);
Javadoc javadoc = methodDeclaration.getJavadoc();
if (javadoc != null && typeBinding != null) {
TagElement newTag = ast.newTagElement();
newTag.setTagName(TagElement.TAG_RETURN);
TextElement commentStart = ast.newTextElement();
newTag.fragments().add(commentStart);
JavadocTagsSubProcessor.insertTag(rewrite.getListRewrite(javadoc, Javadoc.TAGS_PROPERTY), newTag, null);
//$NON-NLS-1$
proposal.addLinkedPosition(rewrite.track(commentStart), false, "comment_start");
}
//$NON-NLS-1$
String key = "return_type";
proposal.addLinkedPosition(rewrite.track(type), true, key);
if (typeBinding != null) {
ITypeBinding[] bindings = ASTResolving.getRelaxingTypes(ast, typeBinding);
for (int i = 0; i < bindings.length; i++) {
proposal.addLinkedPositionProposal(key, bindings[i]);
}
}
proposals.add(proposal);
// change to constructor
ASTNode parentType = ASTResolving.findParentType(decl);
if (parentType instanceof AbstractTypeDeclaration) {
boolean isInterface = parentType instanceof TypeDeclaration && ((TypeDeclaration) parentType).isInterface();
if (!isInterface) {
String constructorName = ((AbstractTypeDeclaration) parentType).getName().getIdentifier();
ASTNode nameNode = methodDeclaration.getName();
label = Messages.format(CorrectionMessages.ReturnTypeSubProcessor_wrongconstructorname_description, BasicElementLabels.getJavaElementName(constructorName));
proposals.add(new ReplaceCorrectionProposal(label, cu, nameNode.getStartPosition(), nameNode.getLength(), constructorName, IProposalRelevance.CHANGE_TO_CONSTRUCTOR));
}
}
}
}
use of org.eclipse.jdt.core.dom.AST in project che by eclipse.
the class SuppressWarningsSubProcessor method addUnknownSuppressWarningProposals.
/**
* Adds a proposal to correct the name of the SuppressWarning annotation
* @param context the context
* @param problem the problem
* @param proposals the resulting proposals
*/
public static void addUnknownSuppressWarningProposals(IInvocationContext context, IProblemLocation problem, Collection<ICommandAccess> proposals) {
ASTNode coveringNode = context.getCoveringNode();
if (!(coveringNode instanceof StringLiteral))
return;
AST ast = coveringNode.getAST();
StringLiteral literal = (StringLiteral) coveringNode;
String literalValue = literal.getLiteralValue();
String[] allWarningTokens = CorrectionEngine.getAllWarningTokens();
for (int i = 0; i < allWarningTokens.length; i++) {
String curr = allWarningTokens[i];
if (NameMatcher.isSimilarName(literalValue, curr)) {
StringLiteral newLiteral = ast.newStringLiteral();
newLiteral.setLiteralValue(curr);
ASTRewrite rewrite = ASTRewrite.create(ast);
rewrite.replace(literal, newLiteral, null);
String label = Messages.format(CorrectionMessages.SuppressWarningsSubProcessor_fix_suppress_token_label, new String[] { curr });
Image image = JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_CHANGE);
ASTRewriteCorrectionProposal proposal = new ASTRewriteCorrectionProposal(label, context.getCompilationUnit(), rewrite, IProposalRelevance.FIX_SUPPRESS_TOKEN, image);
proposals.add(proposal);
}
}
addRemoveUnusedSuppressWarningProposals(context, problem, proposals);
}
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