/**
* Appends the text representation of the given modifier flags, followed by a single space. Used
* for 3.0 modifiers and annotations.
*
* @param ext the list of modifier and annotation nodes (element type: <code>IExtendedModifiers
* </code>)
*/
private void printModifiers(List ext) {
for (Iterator it = ext.iterator(); it.hasNext(); ) {
ASTNode p = (ASTNode) it.next();
p.accept(this);
this.fBuffer.append(" "); // $NON-NLS-1$
}
}
public void collectOccurrenceMatches(
IJavaScriptElement element, IDocument document, Collection resultingMatches) {
HashMap lineToLineElement = new HashMap();
for (Iterator iter = fResult.iterator(); iter.hasNext(); ) {
ASTNode node = (ASTNode) iter.next();
int startPosition = node.getStartPosition();
int length = node.getLength();
try {
boolean isException = node == fSelectedName;
int line = document.getLineOfOffset(startPosition);
Integer lineInteger = new Integer(line);
ExceptionOccurrencesGroupKey groupKey =
(ExceptionOccurrencesGroupKey) lineToLineElement.get(lineInteger);
if (groupKey == null) {
IRegion region = document.getLineInformation(line);
String lineContents = document.get(region.getOffset(), region.getLength()).trim();
groupKey = new ExceptionOccurrencesGroupKey(element, line, lineContents, isException);
lineToLineElement.put(lineInteger, groupKey);
} else if (isException) {
// the line with the target exception always has the exception icon:
groupKey.setException(true);
}
Match match = new Match(groupKey, startPosition, length);
resultingMatches.add(match);
} catch (BadLocationException e) {
// nothing
}
}
}
public String initialize(JavaScriptUnit root, ASTNode node) {
fAST = root.getAST();
if (!(node instanceof Name)) {
return SearchMessages.ExceptionOccurrencesFinder_no_exception;
}
fSelectedName = ASTNodes.getTopMostName((Name) node);
ASTNode parent = fSelectedName.getParent();
FunctionDeclaration decl = resolveMethodDeclaration(parent);
if (decl != null && methodThrowsException(decl, fSelectedName)) {
fException = fSelectedName.resolveTypeBinding();
fStart = decl.getBody();
} else if (parent instanceof Type) {
parent = parent.getParent();
if (parent instanceof SingleVariableDeclaration
&& parent.getParent() instanceof CatchClause) {
CatchClause catchClause = (CatchClause) parent.getParent();
TryStatement tryStatement = (TryStatement) catchClause.getParent();
if (tryStatement != null) {
IVariableBinding var = catchClause.getException().resolveBinding();
if (var != null && var.getType() != null) {
fException = var.getType();
fStart = tryStatement.getBody();
}
}
}
}
if (fException == null || fStart == null)
return SearchMessages.ExceptionOccurrencesFinder_no_exception;
return null;
}
/*
* @see ASTVisitor#visit(TagElement)
*/
public boolean visit(TagElement node) {
if (node.isNested()) {
// nested tags are always enclosed in braces
this.fBuffer.append("{"); // $NON-NLS-1$
} else {
// top-level tags always begin on a new line
this.fBuffer.append("\n * "); // $NON-NLS-1$
}
boolean previousRequiresWhiteSpace = false;
if (node.getTagName() != null) {
this.fBuffer.append(node.getTagName());
previousRequiresWhiteSpace = true;
}
boolean previousRequiresNewLine = false;
for (Iterator it = node.fragments().iterator(); it.hasNext(); ) {
ASTNode e = (ASTNode) it.next();
// assume text elements include necessary leading and trailing whitespace
// but Name, MemberRef, FunctionRef, and nested TagElement do not include white space
boolean currentIncludesWhiteSpace = (e instanceof TextElement);
if (previousRequiresNewLine && currentIncludesWhiteSpace) {
this.fBuffer.append("\n * "); // $NON-NLS-1$
}
previousRequiresNewLine = currentIncludesWhiteSpace;
// add space if required to separate
if (previousRequiresWhiteSpace && !currentIncludesWhiteSpace) {
this.fBuffer.append(" "); // $NON-NLS-1$
}
e.accept(this);
previousRequiresWhiteSpace = !currentIncludesWhiteSpace && !(e instanceof TagElement);
}
if (node.isNested()) {
this.fBuffer.append("}"); // $NON-NLS-1$
}
return false;
}
public void postVisit(ASTNode node) {
// check that parent is && or ||
if (!(node.getParent() instanceof InfixExpression)) return;
// we want to add parenthesis around arithmetic operators and instanceof
boolean needParenthesis = false;
if (node instanceof InfixExpression) {
InfixExpression expression = (InfixExpression) node;
InfixExpression.Operator operator = expression.getOperator();
InfixExpression parentExpression = (InfixExpression) node.getParent();
InfixExpression.Operator parentOperator = parentExpression.getOperator();
if (parentOperator == operator) return;
needParenthesis =
(operator == InfixExpression.Operator.LESS)
|| (operator == InfixExpression.Operator.GREATER)
|| (operator == InfixExpression.Operator.LESS_EQUALS)
|| (operator == InfixExpression.Operator.GREATER_EQUALS)
|| (operator == InfixExpression.Operator.EQUALS)
|| (operator == InfixExpression.Operator.NOT_EQUALS)
|| (operator == InfixExpression.Operator.CONDITIONAL_AND)
|| (operator == InfixExpression.Operator.CONDITIONAL_OR);
}
if (node instanceof InstanceofExpression) {
needParenthesis = true;
}
if (!needParenthesis) {
return;
}
fNodes.add(node);
}
/*
* @see ASTVisitor#visit(Javadoc)
*/
public boolean visit(JSdoc node) {
this.fBuffer.append("/** "); // $NON-NLS-1$
for (Iterator it = node.tags().iterator(); it.hasNext(); ) {
ASTNode e = (ASTNode) it.next();
e.accept(this);
}
this.fBuffer.append("\n */"); // $NON-NLS-1$
return false;
}
// !! - like one in ExtractTempRefactoring
private static boolean canReplace(IASTFragment fragment) {
ASTNode node = fragment.getAssociatedNode();
ASTNode parent = node.getParent();
if (parent instanceof VariableDeclarationFragment) {
VariableDeclarationFragment vdf = (VariableDeclarationFragment) parent;
if (node.equals(vdf.getName())) return false;
}
if (parent instanceof ExpressionStatement) return false;
if (parent instanceof SwitchCase) return false;
return true;
}
public List perform() {
fStart.accept(this);
if (fSelectedName != null) {
fResult.add(fSelectedName);
}
return fResult;
}
/**
* Adds the necessary imports for an AST node to the specified compilation unit.
*
* @param rewrite the compilation unit rewrite whose compilation unit's imports should be updated
* @param node the AST node specifying the element for which imports should be added
* @param typeImports the map of name nodes to strings (element type: Map <Name, String>).
* @param staticImports the map of name nodes to strings (element type: Map <Name, String>).
* @param excludeBindings the set of bindings to exclude (element type: Set <IBinding>).
* @param declarations <code>true</code> if method declarations are treated as abstract, <code>
* false</code> otherwise
*/
public static void addImports(
final CompilationUnitRewrite rewrite,
final ASTNode node,
final Map typeImports,
final Map staticImports,
final Collection excludeBindings,
final boolean declarations) {
Assert.isNotNull(rewrite);
Assert.isNotNull(node);
Assert.isNotNull(typeImports);
Assert.isNotNull(staticImports);
final Set types = new HashSet();
final Set members = new HashSet();
final ImportReferencesCollector collector =
new ImportReferencesCollector(
rewrite.getCu().getJavaScriptProject(), null, types, members) {
public final boolean visit(final Block block) {
Assert.isNotNull(block);
if (declarations && block.getParent() instanceof FunctionDeclaration) return false;
return super.visit(block);
}
};
node.accept(collector);
final ImportRewrite rewriter = rewrite.getImportRewrite();
final ImportRemover remover = rewrite.getImportRemover();
Name name = null;
IBinding binding = null;
for (final Iterator iterator = types.iterator(); iterator.hasNext(); ) {
name = (Name) iterator.next();
binding = name.resolveBinding();
if (binding instanceof ITypeBinding) {
final ITypeBinding type = (ITypeBinding) binding;
if (excludeBindings == null || !excludeBindings.contains(type)) {
typeImports.put(name, rewriter.addImport(type));
remover.registerAddedImport(type.getQualifiedName());
}
}
}
for (final Iterator iterator = members.iterator(); iterator.hasNext(); ) {
name = (Name) iterator.next();
binding = name.resolveBinding();
if (binding instanceof IVariableBinding) {
final IVariableBinding variable = (IVariableBinding) binding;
final ITypeBinding declaring = variable.getDeclaringClass();
if (declaring != null && (excludeBindings == null || !excludeBindings.contains(variable))) {
staticImports.put(name, rewriter.addStaticImport(variable));
remover.registerAddedStaticImport(declaring.getQualifiedName(), variable.getName(), true);
}
} else if (binding instanceof IFunctionBinding) {
final IFunctionBinding method = (IFunctionBinding) binding;
final ITypeBinding declaring = method.getDeclaringClass();
if (declaring != null && (excludeBindings == null || !excludeBindings.contains(method))) {
staticImports.put(name, rewriter.addStaticImport(method));
remover.registerAddedStaticImport(declaring.getQualifiedName(), method.getName(), false);
}
}
}
}
/**
* Find all nodes connected to the given binding. e.g. Declaration of a field and all references.
* For types this includes also the constructor declaration, for methods also overridden methods
* or methods overriding (if existing in the same AST)
*
* @param root The root of the AST tree to search
* @param binding The binding of the searched nodes
* @return Return
*/
public static SimpleName[] findByBinding(ASTNode root, IBinding binding) {
ArrayList<SimpleName> res = new ArrayList<SimpleName>();
if (root != null) {
BindingFinder nodeFinder = new BindingFinder(binding, res);
root.accept(nodeFinder);
}
return res.toArray(new SimpleName[res.size()]);
}
public static IFix createRemoveUnnecessaryParenthesisFix(
JavaScriptUnit compilationUnit, ASTNode[] nodes) {
// check sub-expressions in fully covered nodes
final ArrayList changedNodes = new ArrayList();
for (int i = 0; i < nodes.length; i++) {
ASTNode covered = nodes[i];
if (covered instanceof ParenthesizedExpression || covered instanceof InfixExpression)
covered.accept(new UnnecessaryParenthesisVisitor(changedNodes));
}
if (changedNodes.isEmpty()) return null;
HashSet expressions = new HashSet(changedNodes);
RemoveParenthesisOperation op = new RemoveParenthesisOperation(expressions);
return new ExpressionsFix(
FixMessages.ExpressionsFix_removeUnnecessaryParenthesis_description,
compilationUnit,
new IFixRewriteOperation[] {op});
}
public static IFix createAddParanoidalParenthesisFix(
JavaScriptUnit compilationUnit, ASTNode[] coveredNodes) throws CoreException {
if (coveredNodes == null) return null;
if (coveredNodes.length == 0) return null;
// check sub-expressions in fully covered nodes
final ArrayList changedNodes = new ArrayList();
for (int i = 0; i < coveredNodes.length; i++) {
ASTNode covered = coveredNodes[i];
if (covered instanceof InfixExpression)
covered.accept(new MissingParenthesisVisitor(changedNodes));
}
if (changedNodes.isEmpty()) return null;
IFixRewriteOperation op =
new AddParenthesisOperation(
(Expression[]) changedNodes.toArray(new Expression[changedNodes.size()]));
return new ExpressionsFix(
FixMessages.ExpressionsFix_addParanoiacParenthesis_description,
compilationUnit,
new IFixRewriteOperation[] {op});
}
public static SimpleName[] findByProblems(ASTNode parent, SimpleName nameNode) {
ArrayList res = new ArrayList();
ASTNode astRoot = parent.getRoot();
if (!(astRoot instanceof JavaScriptUnit)) {
return null;
}
IProblem[] problems = ((JavaScriptUnit) astRoot).getProblems();
int nameNodeKind = getNameNodeProblemKind(problems, nameNode);
if (nameNodeKind == 0) { // no problem on node
return null;
}
int bodyStart = parent.getStartPosition();
int bodyEnd = bodyStart + parent.getLength();
String name = nameNode.getIdentifier();
for (int i = 0; i < problems.length; i++) {
IProblem curr = problems[i];
int probStart = curr.getSourceStart();
int probEnd = curr.getSourceEnd() + 1;
if (probStart > bodyStart && probEnd < bodyEnd) {
int currKind = getProblemKind(curr);
if ((nameNodeKind & currKind) != 0) {
ASTNode node = NodeFinder.perform(parent, probStart, probEnd - probStart);
if (node instanceof SimpleName && name.equals(((SimpleName) node).getIdentifier())) {
res.add(node);
}
}
}
}
return (SimpleName[]) res.toArray(new SimpleName[res.size()]);
}
/**
* Find all nodes connected to the given name node. If the node has a binding then all nodes
* connected to this binding are returned. If the node has no binding, then all nodes that also
* miss a binding and have the same name are returned.
*
* @param root The root of the AST tree to search
* @param name The node to find linked nodes for
* @return Return
*/
public static SimpleName[] findByNode(ASTNode root, SimpleName name) {
IBinding binding = name.resolveBinding();
if (binding != null) {
return findByBinding(root, binding);
}
SimpleName[] names = findByProblems(root, name);
if (names != null) {
return names;
}
int parentKind = name.getParent().getNodeType();
if (parentKind == ASTNode.LABELED_STATEMENT
|| parentKind == ASTNode.BREAK_STATEMENT
|| parentKind == ASTNode.CONTINUE_STATEMENT) {
ArrayList res = new ArrayList();
LabelFinder nodeFinder = new LabelFinder(name, res);
root.accept(nodeFinder);
return (SimpleName[]) res.toArray(new SimpleName[res.size()]);
}
return new SimpleName[] {name};
}
/**
* Collects the necessary imports for an element represented by the specified AST node.
*
* @param project the java project containing the element
* @param node the AST node specifying the element for which imports should be collected
* @param typeBindings the set of type bindings (element type: Set <ITypeBinding>).
* @param staticBindings the set of bindings (element type: Set <IBinding>).
* @param excludeBindings the set of bindings to exclude (element type: Set <IBinding>).
* @param declarations <code>true</code> if method declarations are treated as abstract, <code>
* false</code> otherwise
*/
public static void collectImports(
final IJavaScriptProject project,
final ASTNode node,
final Collection typeBindings,
final Collection staticBindings,
final Collection excludeBindings,
final boolean declarations) {
Assert.isNotNull(project);
Assert.isNotNull(node);
Assert.isNotNull(typeBindings);
Assert.isNotNull(staticBindings);
final Set types = new HashSet();
final Set members = new HashSet();
final ImportReferencesCollector collector =
new ImportReferencesCollector(project, null, types, members) {
public final boolean visit(final Block block) {
Assert.isNotNull(block);
if (declarations && block.getParent() instanceof FunctionDeclaration) return false;
return super.visit(block);
}
};
node.accept(collector);
Name name = null;
IBinding binding = null;
for (final Iterator iterator = types.iterator(); iterator.hasNext(); ) {
name = (Name) iterator.next();
binding = name.resolveBinding();
if (binding instanceof ITypeBinding) {
final ITypeBinding type = (ITypeBinding) binding;
if (excludeBindings == null || !excludeBindings.contains(type)) typeBindings.add(type);
}
}
for (final Iterator iterator = members.iterator(); iterator.hasNext(); ) {
name = (Name) iterator.next();
binding = name.resolveBinding();
if (binding != null && (excludeBindings == null || !excludeBindings.contains(binding)))
staticBindings.add(binding);
}
}
private CodeScopeBuilder(ASTNode node, IBinding ignore) {
fScope = new Scope(null, node.getStartPosition(), node.getLength());
fScopes = new ArrayList();
fIgnoreBinding = ignore;
}
private boolean snippetMatchesAstTokens(final String snippetCode, final ASTNode node) {
final JavascriptTokenizer tokenizer = new JavascriptTokenizer();
final List<String> snippetTokens = tokenizer.tokenListFromCode(snippetCode.toCharArray());
final List<String> astTokens = tokenizer.tokenListFromCode(node.toString().toCharArray());
return astTokens.equals(snippetTokens);
}
public static String asString(ASTNode node) {
ASTFlattener flattener = new ASTFlattener();
node.accept(flattener);
return flattener.getResult();
}
protected boolean visitNode(ASTNode node) {
Assert.isTrue(false, "No implementation to flatten node: " + node.toString()); // $NON-NLS-1$
return false;
}
private CodeScopeBuilder(ASTNode node, Selection ignore) {
fScope = new Scope(null, node.getStartPosition(), node.getLength());
fScopes = new ArrayList();
fIgnoreRange = ignore;
}
