public boolean forFriendship() {
if (astName == null) return false;
IASTNode node = astName.getParent();
while (node instanceof IASTName) node = node.getParent();
IASTDeclaration decl = null;
IASTDeclarator dtor = null;
if (node instanceof ICPPASTDeclSpecifier && node.getParent() instanceof IASTDeclaration) {
decl = (IASTDeclaration) node.getParent();
} else if (node instanceof IASTDeclarator) {
dtor = (IASTDeclarator) node;
while (dtor.getParent() instanceof IASTDeclarator) dtor = (IASTDeclarator) dtor.getParent();
if (!(dtor.getParent() instanceof IASTDeclaration)) return false;
decl = (IASTDeclaration) dtor.getParent();
} else {
return false;
}
if (decl instanceof IASTSimpleDeclaration) {
IASTSimpleDeclaration simple = (IASTSimpleDeclaration) decl;
if (!((ICPPASTDeclSpecifier) simple.getDeclSpecifier()).isFriend()) return false;
if (dtor != null) return true;
return simple.getDeclarators().length == 0;
} else if (decl instanceof IASTFunctionDefinition) {
IASTFunctionDefinition fnDef = (IASTFunctionDefinition) decl;
if (!((ICPPASTDeclSpecifier) fnDef.getDeclSpecifier()).isFriend()) return false;
return (dtor != null);
}
return false;
}
@Override
public int getAdditionalNameFlags(int standardFlags, IASTName name) {
if ((standardFlags & PDOMName.IS_REFERENCE) == PDOMName.IS_REFERENCE) {
IASTNode parent = name.getParent();
if (parent instanceof ICPPASTQualifiedName) {
// When taking the address of a method it will be called without suppressing
// the virtual mechanism
parent = parent.getParent();
if (parent instanceof IASTIdExpression) {
parent = parent.getParent();
if (parent instanceof IASTUnaryExpression) {
if (((IASTUnaryExpression) parent).getOperator() == IASTUnaryExpression.op_amper)
return PDOMName.COULD_BE_POLYMORPHIC_METHOD_CALL;
}
}
} else if (parent instanceof ICPPASTFieldReference) {
// The name is not qualified
ICPPASTFieldReference fr = (ICPPASTFieldReference) parent;
parent = parent.getParent();
if (parent instanceof IASTFunctionCallExpression) {
// v->member()
if (fr.isPointerDereference()) {
return PDOMName.COULD_BE_POLYMORPHIC_METHOD_CALL;
}
// v.member()
IASTExpression fieldOwner = fr.getFieldOwner();
if (fieldOwner.getValueCategory().isGLValue()) {
while (fieldOwner instanceof IASTUnaryExpression
&& ((IASTUnaryExpression) fieldOwner).getOperator()
== IASTUnaryExpression.op_bracketedPrimary)
fieldOwner = ((IASTUnaryExpression) fieldOwner).getOperand();
if (fieldOwner instanceof IASTIdExpression) {
IBinding b = ((IASTIdExpression) fieldOwner).getName().resolveBinding();
if (b instanceof IVariable) {
IType t = ((IVariable) b).getType();
if (!(t instanceof ICPPReferenceType)) {
return 0;
}
}
}
return PDOMName.COULD_BE_POLYMORPHIC_METHOD_CALL;
}
}
} else if (parent instanceof IASTIdExpression) {
// Calling a member from within a member
if (parent.getParent() instanceof IASTFunctionCallExpression) {
return PDOMName.COULD_BE_POLYMORPHIC_METHOD_CALL;
}
}
}
return 0;
}
/**
* Returns the list of nodes the given node is part of, for example function parameters if the
* node is a parameter.
*
* @param node the node possibly belonging to a list.
* @return the list of nodes containing the given node, or <code>null</code> if the node does not
* belong to a list
*/
private IASTNode[] getContainingNodeList(IASTNode node) {
if (node.getPropertyInParent() == IASTStandardFunctionDeclarator.FUNCTION_PARAMETER) {
return ((IASTStandardFunctionDeclarator) node.getParent()).getParameters();
} else if (node.getPropertyInParent() == IASTExpressionList.NESTED_EXPRESSION) {
return ((IASTExpressionList) node.getParent()).getExpressions();
} else if (node.getPropertyInParent() == ICPPASTFunctionDefinition.MEMBER_INITIALIZER) {
return ((ICPPASTFunctionDefinition) node.getParent()).getMemberInitializers();
} else if (node.getPropertyInParent() == ICPPASTFunctionDeclarator.EXCEPTION_TYPEID) {
return ((ICPPASTFunctionDeclarator) node.getParent()).getExceptionSpecification();
}
return null;
}
private boolean isNodeRemoved(IASTNode node) {
do {
if (getReplacementNode(node) == null) return true;
} while ((node = node.getParent()) != null);
return false;
}
public void replace(IASTNode child, IASTNode other) {
if (child == declarator) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
declarator = (IASTDeclarator) other;
}
}
private IASTCompositeTypeSpecifier getCompositeTypeSpecifier(IASTName selectedName) {
IASTNode node = selectedName;
while (node != null && !(node instanceof IASTCompositeTypeSpecifier)) {
node = node.getParent();
}
return (IASTCompositeTypeSpecifier) node;
}
/**
* return null if the algorithm should stop (monitor was cancelled) return DOMASTNodeLeafContinue
* if the algorithm should continue but no valid DOMASTNodeLeaf was added (i.e. node was null
* return the DOMASTNodeLeaf added to the DOM AST View's model otherwise
*
* @param node
* @return
*/
private DOMASTNodeLeaf addRoot(IASTNode node) {
if (monitor != null && monitor.isCanceled()) return null;
if (node == null) return new DOMASTNodeLeafContinue(null);
// only do length check for ASTNode (getNodeLocations on PreprocessorStatements is very
// expensive)
if (node instanceof ASTNode && ((ASTNode) node).getLength() <= 0)
return new DOMASTNodeLeafContinue(null);
DOMASTNodeParent parent = null;
// if it's a preprocessor statement being merged then do a special search for parent (no search)
if (node instanceof IASTPreprocessorStatement) {
parent = root;
} else {
IASTNode tempParent = node.getParent();
if (tempParent instanceof IASTPreprocessorStatement) {
parent = root.findTreeParentForMergedNode(node);
} else {
parent = root.findTreeParentForNode(node);
}
}
if (parent == null) parent = root;
return createNode(parent, node);
}
@Override
protected int rwAnyNode(IASTNode node, int indirection) {
final IASTNode parent = node.getParent();
if (parent instanceof ICPPASTConstructorInitializer) {
return rwInCtorInitializer(node, indirection, (ICPPASTConstructorInitializer) parent);
}
return super.rwAnyNode(node, indirection);
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (child == nested) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
nested = (IASTDeclarator) other;
}
}
public boolean isFunctionCall() {
if (astName == null) return false;
if (astName.getPropertyInParent() == CPPSemantics.STRING_LOOKUP_PROPERTY) return false;
IASTNode p1 = astName.getParent();
if (p1 instanceof ICPPASTQualifiedName) p1 = p1.getParent();
return (p1 instanceof IASTIdExpression
&& p1.getPropertyInParent() == IASTFunctionCallExpression.FUNCTION_NAME);
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (child == operand) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
operand = (IASTExpression) other;
}
}
private void handleReplace(IASTNode node) {
List<ASTModification> modifications = getModifications(node, ModificationKind.REPLACE);
String source = node.getTranslationUnit().getRawSignature();
TextEdit edit;
ChangeGeneratorWriterVisitor writer =
new ChangeGeneratorWriterVisitor(modificationStore, commentMap);
IASTFileLocation fileLocation = node.getFileLocation();
Integer val = sourceOffsets.get(fileLocation.getFileName());
int processedOffset = val != null ? val.intValue() : 0;
if (modifications.size() == 1 && modifications.get(0).getNewNode() == null) {
int offset = getOffsetIncludingComments(node);
int endOffset = getEndOffsetIncludingComments(node);
offset = Math.max(skipPrecedingBlankLines(source, offset), processedOffset);
endOffset = skipTrailingBlankLines(source, endOffset);
IASTNode[] siblingsList = getContainingNodeList(node);
if (siblingsList != null) {
if (siblingsList.length > 1) {
if (node == siblingsList[0]) {
endOffset = skipToTrailingDelimiter(source, ',', endOffset);
} else {
offset = skipToPrecedingDelimiter(source, ',', offset);
}
} else if (node.getPropertyInParent() == ICPPASTFunctionDefinition.MEMBER_INITIALIZER) {
offset = skipToPrecedingDelimiter(source, ':', offset);
}
}
IASTNode prevNode = getPreviousSiblingOrPreprocessorNode(node);
IASTNode nextNode = getNextSiblingOrPreprocessorNode(node);
if (prevNode != null && nextNode != null) {
if (ASTWriter.requireBlankLineInBetween(prevNode, nextNode)) {
writer.newLine();
}
} else if (node.getParent() instanceof ICPPASTNamespaceDefinition) {
writer.newLine();
}
String code = writer.toString();
edit = new ReplaceEdit(offset, endOffset - offset, code);
} else {
node.accept(writer);
String code = writer.toString();
int offset = fileLocation.getNodeOffset();
int endOffset = offset + fileLocation.getNodeLength();
if (node instanceof IASTStatement || node instanceof IASTDeclaration) {
// Include trailing comments in the area to be replaced.
endOffset = Math.max(endOffset, getEndOffsetIncludingTrailingComments(node));
}
String lineSeparator = writer.getScribe().getLineSeparator();
if (code.endsWith(lineSeparator)) {
code = code.substring(0, code.length() - lineSeparator.length());
}
edit = new ReplaceEdit(offset, endOffset - offset, code);
}
IFile file = FileHelper.getFileFromNode(node);
MultiTextEdit parentEdit = getEdit(node, file);
parentEdit.addChild(edit);
sourceOffsets.put(fileLocation.getFileName(), edit.getExclusiveEnd());
}
private void checkBelongsToAST(IASTNode node) {
while (node != null) {
node = node.getParent();
if (node == fRoot) {
return;
}
}
throw new IllegalArgumentException();
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (thenClause == child) {
other.setParent(child.getParent());
other.setPropertyInParent(child.getPropertyInParent());
thenClause = (IASTStatement) other;
} else if (elseClause == child) {
other.setParent(child.getParent());
other.setPropertyInParent(child.getPropertyInParent());
elseClause = (IASTStatement) other;
} else if (condition == child || condDecl == child) {
if (other instanceof IASTExpression) {
setConditionExpression((IASTExpression) other);
} else if (other instanceof IASTDeclaration) {
setConditionDeclaration((IASTDeclaration) other);
}
}
}
/** Returns whether the name belongs to a simple declaration or function definition. */
public IASTDeclaration forDeclaration() {
IASTNode node = getDeclarator();
while (node instanceof IASTDeclarator) node = node.getParent();
if (node instanceof IASTSimpleDeclaration || node instanceof IASTFunctionDefinition)
return (IASTDeclaration) node;
return null;
}
public boolean checkAssociatedScopes() {
IASTName name = astName;
if (name == null || name instanceof ICPPASTQualifiedName) return false;
IASTNode parent = name.getParent();
if (name.getPropertyInParent() == ICPPASTTemplateId.TEMPLATE_NAME) parent = parent.getParent();
if (parent instanceof ICPPASTQualifiedName) {
return false;
}
return isFunctionCall();
}
private IASTFunctionDeclarator findDeclaratorInAncestors(IASTNode node) {
while (node != null) {
IASTFunctionDeclarator declarator = extractDeclarator(node);
if (node instanceof ICPPASTTemplateDeclaration) {
declarator = extractDeclarator(((ICPPASTTemplateDeclaration) node).getDeclaration());
}
if (declarator != null) {
return declarator;
}
node = node.getParent();
}
return null;
}
@Override
public void replace(IASTNode child, IASTNode other) {
assert child.isActive() == other.isActive();
for (int i = 0; i <= fLastDeclaration; ++i) {
if (fAllDeclarations[i] == child) {
other.setParent(child.getParent());
other.setPropertyInParent(child.getPropertyInParent());
fAllDeclarations[i] = (IASTDeclaration) other;
fActiveDeclarations = null;
break;
}
}
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (body == child) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
body = (IASTStatement) other;
}
if (child == init) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
init = (IASTStatement) other;
}
if (child == iterationExpression) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
iterationExpression = (IASTExpression) other;
}
if (child == condition) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
condition = (IASTExpression) other;
}
}
public boolean forUsingDeclaration() {
if (astName == null) return false;
if (astName.getPropertyInParent() == CPPSemantics.STRING_LOOKUP_PROPERTY) return false;
IASTNode p1 = astName.getParent();
if (p1 instanceof ICPPASTUsingDeclaration) return true;
if (p1 instanceof ICPPASTQualifiedName) {
IASTNode p2 = p1.getParent();
if (p2 instanceof ICPPASTUsingDeclaration) {
IASTName[] ns = ((ICPPASTQualifiedName) p1).getNames();
return (ns[ns.length - 1] == astName);
}
}
return false;
}
public IASTDeclarator getDeclarator() {
IASTName name = astName;
if (name == null || name.getPropertyInParent() == CPPSemantics.STRING_LOOKUP_PROPERTY)
return null;
if (name.getParent() instanceof ICPPASTTemplateId) name = (IASTName) name.getParent();
IASTNode node = name.getParent();
if (node instanceof ICPPASTQualifiedName) {
if (((ICPPASTQualifiedName) node).getLastName() != name) return null;
node = node.getParent();
}
if (node instanceof IASTDeclarator) return (IASTDeclarator) node;
return null;
}
private void handleInserts(IASTNode anchorNode) {
List<ASTModification> modifications =
getModifications(anchorNode, ModificationKind.INSERT_BEFORE);
if (modifications.isEmpty()) return;
ChangeGeneratorWriterVisitor writer =
new ChangeGeneratorWriterVisitor(modificationStore, commentMap);
IASTNode newNode = null;
for (ASTModification modification : modifications) {
boolean first = newNode == null;
newNode = modification.getNewNode();
if (first) {
IASTNode prevNode = getPreviousSiblingOrPreprocessorNode(anchorNode);
if (prevNode != null) {
if (ASTWriter.requireBlankLineInBetween(prevNode, newNode)) {
writer.newLine();
}
} else if (anchorNode.getParent() instanceof ICPPASTNamespaceDefinition) {
writer.newLine();
}
}
newNode.accept(writer);
if (getContainingNodeList(anchorNode) != null) {
writer.getScribe().print(", "); // $NON-NLS-1$
}
}
if (ASTWriter.requireBlankLineInBetween(newNode, anchorNode)) {
writer.newLine();
}
int insertPos = getOffsetIncludingComments(anchorNode);
int length = 0;
if (writer.getScribe().isAtBeginningOfLine()) {
String tuCode = anchorNode.getTranslationUnit().getRawSignature();
insertPos = skipPrecedingWhitespace(tuCode, insertPos);
length = insertPos;
insertPos = skipPrecedingBlankLines(tuCode, insertPos);
length -= insertPos;
}
String code = writer.toString();
ReplaceEdit edit = new ReplaceEdit(insertPos, length, code);
IFile file = FileHelper.getFileFromNode(anchorNode);
MultiTextEdit parentEdit = getEdit(anchorNode, file);
parentEdit.addChild(edit);
sourceOffsets.put(file.getName(), edit.getOffset());
}
public boolean qualified() {
if (forceQualified) return true;
IASTName n = astName;
if (n == null || n.getPropertyInParent() == CPPSemantics.STRING_LOOKUP_PROPERTY) return false;
IASTNode p = n.getParent();
if (p instanceof ICPPASTTemplateId) {
n = (IASTName) p;
p = p.getParent();
}
if (p instanceof ICPPASTQualifiedName) {
final ICPPASTQualifiedName qname = (ICPPASTQualifiedName) p;
if (qname.isFullyQualified()) return true;
final IASTName[] qnames = qname.getNames();
if (qnames.length > 0 && qnames[0] != n) return true;
}
return p instanceof ICPPASTFieldReference;
}
public boolean checkClassContainingFriend() {
if (astName == null || astName instanceof ICPPASTQualifiedName) return false;
IASTNode p = astName.getParent();
ASTNodeProperty prop = null;
while (p != null) {
prop = p.getPropertyInParent();
if (prop == ICPPASTTemplateId.TEMPLATE_ID_ARGUMENT || prop == IASTDeclarator.DECLARATOR_NAME)
return false;
if (p instanceof IASTDeclarator
&& !(((IASTDeclarator) p).getName() instanceof ICPPASTQualifiedName)) return false;
if (p instanceof IASTDeclaration) {
if (prop == IASTCompositeTypeSpecifier.MEMBER_DECLARATION) {
return CPPVisitor.isFriendDeclaration(p);
} else {
return false;
}
}
p = p.getParent();
}
return false;
}
private IASTNode getNextSiblingNode(IASTNode node) {
IASTNode parent = node.getParent();
IASTNode[] siblings;
if (parent instanceof ICPPASTNamespaceDefinition) {
siblings = ((ICPPASTNamespaceDefinition) parent).getDeclarations(true);
} else if (parent instanceof IASTCompositeTypeSpecifier) {
siblings = ((IASTCompositeTypeSpecifier) parent).getDeclarations(true);
} else {
siblings = parent.getChildren();
}
boolean beforeNode = false;
for (int i = 0; i < siblings.length; i++) {
IASTNode sibling = siblings[i];
if (sibling == node) {
beforeNode = true;
} else if (beforeNode) {
sibling = getReplacementNode(sibling);
if (sibling != null) return sibling;
}
}
return null;
}
/**
* Inserts the given node in this rewriter. The ast is not modified, the rewriter just records the
* insertion. The new node can be part of a translation-unit or it is a synthetic (newly created)
* node.
*
* @param parent the parent the new node is added to.
* @param insertionPoint the node before which the insertion shall be done, or <code>null</code>
* for inserting after the last child.
* @param newNode the node being inserted
* @param editGroup the edit group in which to collect the corresponding text edits, or <code>null
* </code>
* @return a rewriter for further rewriting the inserted node.
* @throws IllegalArgumentException if the parent or the newNode is null, or if the parent is not
* part of this rewriter's AST, or the insertionPoint is not a child of the parent.
*/
public final ASTRewrite insertBefore(
IASTNode parent, IASTNode insertionPoint, IASTNode newNode, TextEditGroup editGroup) {
if (parent != fRoot) {
checkBelongsToAST(parent);
}
if (newNode == null) {
throw new IllegalArgumentException();
}
checkSupportedNode(parent, Operation.insertBefore);
checkSupportedNode(insertionPoint, Operation.insertBefore);
checkSupportedNode(newNode, Operation.insertBefore);
ASTModification mod;
if (insertionPoint == null) {
mod = new ASTModification(ModificationKind.APPEND_CHILD, parent, newNode, editGroup);
} else {
if (insertionPoint.getParent() != parent) {
throw new IllegalArgumentException();
}
mod = new ASTModification(ModificationKind.INSERT_BEFORE, insertionPoint, newNode, editGroup);
}
fModificationStore.storeModification(fParentMod, mod);
return new ASTRewrite(newNode, fModificationStore, mod, fCommentMap);
}
public void setFunctionArguments(boolean containsImpliedObject, IASTInitializerClause... exprs) {
argsContainImpliedObject = containsImpliedObject;
functionArgs = exprs;
if (exprs.length != 0) {
IASTNode node = exprs[0];
boolean checkForDependentName = false;
while (node != null) {
if (node instanceof ICPPASTTemplateDeclaration) {
checkForDependentName = true;
break;
}
node = node.getParent();
}
if (checkForDependentName) {
IType[] types = getFunctionArgumentTypes();
for (IType type : types) {
if (CPPTemplates.isDependentType(type)) {
checkPointOfDecl = false;
break;
}
}
}
}
}
private static IASTDeclaration getEnclosingTemplateDeclaration(IASTNode node) {
while (node != null && !(node instanceof ICPPASTTemplateDeclaration)) {
node = node.getParent();
}
return (IASTDeclaration) node;
}
private static IASTDeclaration getEnclosingFunctionDefinition(IASTNode node) {
while (node != null && !(node instanceof IASTFunctionDefinition)) {
node = node.getParent();
}
return (IASTDeclaration) node;
}
public static boolean checkWholeClassScope(IASTName name) {
if (name == null) return false;
if (name.getPropertyInParent() == CPPSemantics.STRING_LOOKUP_PROPERTY) return true;
IASTNode node = name.getParent();
while (node instanceof IASTName) {
name = (IASTName) node;
node = name.getParent();
}
final ASTNodeProperty nameProp = name.getPropertyInParent();
if (nameProp == IASTIdExpression.ID_NAME
|| nameProp == IASTFieldReference.FIELD_NAME
|| nameProp == ICASTFieldDesignator.FIELD_NAME
|| nameProp == ICPPASTUsingDirective.QUALIFIED_NAME
|| nameProp == ICPPASTUsingDeclaration.NAME
|| nameProp == IASTFunctionCallExpression.FUNCTION_NAME
|| nameProp == IASTNamedTypeSpecifier.NAME
|| nameProp == ICPPASTConstructorChainInitializer.MEMBER_ID) {
// Potentially we need to consider the entire class scope
} else {
return false;
}
for (; node != null; node = node.getParent()) {
// 3.3.7-5
if (node.getParent() instanceof IASTFunctionDefinition) {
// In a function body
final ASTNodeProperty prop = node.getPropertyInParent();
if (prop == IASTFunctionDefinition.DECL_SPECIFIER
|| prop == IASTFunctionDefinition.DECLARATOR) {
return false;
}
IASTNode parent = node.getParent();
while (parent != null) {
if (parent instanceof ICPPASTCompositeTypeSpecifier) return true;
parent = parent.getParent();
}
// No inline method.
return false;
}
if (node instanceof IASTInitializerList || node instanceof IASTEqualsInitializer) {
if (node.getPropertyInParent() == IASTDeclarator.INITIALIZER) {
IASTNode decl = node.getParent();
while (decl instanceof IASTDeclarator) {
decl = decl.getParent();
}
if (decl instanceof IASTParameterDeclaration) {
// Default argument
IASTNode parent = decl.getParent();
while (parent != null) {
if (parent instanceof ICPPASTCompositeTypeSpecifier) return true;
parent = parent.getParent();
}
// Not within a class definition
return false;
}
if (decl instanceof IASTSimpleDeclaration
&& decl.getPropertyInParent() == IASTCompositeTypeSpecifier.MEMBER_DECLARATION) {
// Initializer of non-static data member
IASTDeclSpecifier declSpec = ((IASTSimpleDeclaration) decl).getDeclSpecifier();
if (declSpec.getStorageClass() != IASTDeclSpecifier.sc_static) {
return true;
}
// Continue search, we could still be in a method.
}
}
}
}
return false;
}
