private void visitSingleDeclarator(AstNode declaration, AstNode declarator) {
AstNode docNode;
AstNode params = declaration.getFirstDescendant(CxxGrammarImpl.parametersAndQualifiers);
// in case of function declaration,
// the docNode is set on the declaration node
if (params != null) {
docNode = declaration;
} else {
AstNode classSpecifier = declaration.getFirstDescendant(CxxGrammarImpl.classSpecifier);
// if a class is specified on the same declaration,
// e.g. 'struct {} a;'
// the documentation node is set on the declarator
if (classSpecifier != null) {
docNode = declarator;
} else {
docNode = declaration;
}
}
visitDeclarator(declarator, docNode);
}
/**
* Find documentation node, associated documentation, identifier of a <em>public</em> member
* declarator and visit it as a public API.
*
* @param node the <em>public</em> member declarator to visit
*/
private void visitMemberDeclarator(AstNode node) {
AstNode container =
node.getFirstAncestor(CxxGrammarImpl.templateDeclaration, CxxGrammarImpl.classSpecifier);
if (isOverriddenMethod(node)) {
// assume that ancestor method is documented
// and do not count as public API
return;
}
AstNode docNode;
if (container == null || container.getType() == CxxGrammarImpl.classSpecifier) {
docNode = node;
} else {
docNode = container;
}
// look for block documentation
List<Token> comments = getBlockDocumentation(docNode);
// documentation may be inlined
if (comments.isEmpty()) {
comments = getDeclaratorInlineComment(node);
}
// find the identifier to present to concrete visitors
String id = null;
AstNode idNode = null;
// first look for an operator function id
idNode = node.getFirstDescendant(CxxGrammarImpl.operatorFunctionId);
if (idNode != null) {
id = getOperatorId(idNode);
} else {
// look for a declarator id
idNode = node.getFirstDescendant(CxxGrammarImpl.declaratorId);
if (idNode != null) {
id = idNode.getTokenValue();
} else {
// look for an identifier (e.g in bitfield declaration)
idNode = node.getFirstDescendant(GenericTokenType.IDENTIFIER);
if (idNode != null) {
id = idNode.getTokenValue();
} else {
LOG.error("Unsupported declarator at {}", node.getTokenLine());
}
}
}
if (idNode != null && id != null) {
visitPublicApi(idNode, id, comments);
}
}
private void visitAliasDeclaration(AstNode aliasDeclNode) {
if (isPublicApiMember(aliasDeclNode)) {
logDebug("AliasDeclaration");
AstNode aliasDeclIdNode = aliasDeclNode.getFirstDescendant(GenericTokenType.IDENTIFIER);
if (aliasDeclIdNode == null) {
LOG.error("No identifier found at {}", aliasDeclNode.getTokenLine());
} else {
// check if this is a template specification to adjust
// documentation node
AstNode template = aliasDeclNode.getFirstAncestor(CxxGrammarImpl.templateDeclaration);
AstNode docNode = (template != null) ? template : aliasDeclNode;
// look for block documentation
List<Token> comments = getBlockDocumentation(docNode);
// documentation may be inlined
if (comments.isEmpty()) {
comments = getDeclaratorInlineComment(aliasDeclNode);
}
visitPublicApi(aliasDeclNode, aliasDeclIdNode.getTokenValue(), comments);
}
}
}
private void visitEnumSpecifier(AstNode enumSpecifierNode) {
AstNode enumIdNode = enumSpecifierNode.getFirstDescendant(GenericTokenType.IDENTIFIER);
String enumId = (enumIdNode == null) ? UNNAMED_ENUM_ID : enumIdNode.getTokenValue();
if (!isPublicApiMember(enumSpecifierNode)) {
logDebug(enumId + " not in public API");
return;
}
visitPublicApi(enumSpecifierNode, enumId, getBlockDocumentation(enumSpecifierNode));
// deal with enumeration values
AstNode enumeratorList = enumSpecifierNode.getFirstDescendant(CxxGrammarImpl.enumeratorList);
if (enumeratorList != null) {
for (AstNode definition : enumeratorList.getChildren(CxxGrammarImpl.enumeratorDefinition)) {
// look for block documentation
List<Token> comments = getBlockDocumentation(definition);
// look for inlined doc
if (comments.isEmpty()) {
AstNode next = definition.getNextAstNode();
// inline documentation may be on the next definition token
// or next curly brace
if (next != null) {
// discard COMMA
if (next.getToken().getType() == CxxPunctuator.COMMA) {
next = next.getNextAstNode();
}
comments = getInlineDocumentation(next.getToken(), definition.getTokenLine());
}
}
visitPublicApi(
definition,
definition.getFirstDescendant(GenericTokenType.IDENTIFIER).getTokenValue(),
comments);
}
}
}
/**
* It is responsible for verifying whether the rule is met in the rule base. In the event that the
* rule is not correct, create message error.
*
* @param astNode It is the node that stores all the rules.
*/
@Override
public void visitNode(AstNode astNode) {
try {
String methodName =
astNode.getFirstDescendant(ApexGrammarRuleKey.METHOD_IDENTIFIER).getTokenOriginalValue();
if (!pattern.matcher(methodName).matches()) {
getContext().createLineViolation(this, MESSAGE, astNode, methodName, format);
}
} catch (Exception e) {
ChecksLogger.logCheckError(this.toString(), "visitNode", e.toString());
}
}
private void visitMemberDeclaration(AstNode memberDeclaration) {
AstNode declaratorList =
memberDeclaration.getFirstDescendant(CxxGrammarImpl.memberDeclaratorList);
if (!isPublicApiMember(memberDeclaration)) {
// if not part of the API, nothing to measure
return;
}
AstNode subclassSpecifier = memberDeclaration.getFirstDescendant(CxxGrammarImpl.classSpecifier);
if (subclassSpecifier != null) {
// sub classes are handled by subscription
return;
}
AstNode functionDef = memberDeclaration.getFirstDescendant(CxxGrammarImpl.functionDefinition);
if (functionDef != null) {
// functionDef are handled by subscription
return;
}
if (declaratorList != null) {
List<AstNode> declarators = declaratorList.getChildren(CxxGrammarImpl.memberDeclarator);
// if only one declarator, the doc should be placed before the
// memberDeclaration, or inlined
if (declarators.size() == 1) {
visitMemberDeclarator(memberDeclaration);
} // if several declarators, doc should be placed before each
// declarator, or inlined
else {
for (AstNode declarator : declarators) {
visitMemberDeclarator(declarator);
}
}
}
}
private void visitClassSpecifier(AstNode classSpecifier) {
// check if this is a template specification to adjust
// documentation node
AstNode template = classSpecifier.getFirstAncestor(CxxGrammarImpl.templateDeclaration);
AstNode docNode = (template != null) ? template : classSpecifier;
// narrow the identifier search scope to classHead
AstNode classHead = classSpecifier.getFirstDescendant(CxxGrammarImpl.classHead);
if (classHead == null) {
LOG.warn(
"classSpecifier does not embed a classHead at line " + classSpecifier.getTokenLine());
return;
}
// look for the specifier id
AstNode id = classHead.getFirstDescendant(CxxGrammarImpl.className);
AstNode idNode;
String idName;
// check if this is an unnamed specifier
if (id == null) {
idNode = classSpecifier;
idName = UNNAMED_CLASSIFIER_ID;
} else {
idNode = id;
idName = id.getTokenValue();
}
if (!isPublicApiMember(classSpecifier)) {
logDebug(idName + " not in public API");
} else {
visitPublicApi(idNode, idName, getBlockDocumentation(docNode));
}
}
// XXX may go to a utility class
private String getOperatorId(AstNode operatorFunctionId) {
StringBuilder builder = new StringBuilder(operatorFunctionId.getTokenValue());
AstNode operator = operatorFunctionId.getFirstDescendant(CxxGrammarImpl.operator);
if (operator != null) {
AstNode opNode = operator.getFirstChild();
while (opNode != null) {
builder.append(opNode.getTokenValue());
opNode = opNode.getNextSibling();
}
}
return builder.toString();
}
private static boolean isPublicApiMember(AstNode node) {
AstNode access = node;
// retrieve the accessSpecifier
do {
access = access.getPreviousAstNode();
} while (access != null && access.getType() != CxxGrammarImpl.accessSpecifier);
if (access != null) {
return access.getToken().getType() == CxxKeyword.PUBLIC
|| access.getToken().getType() == CxxKeyword.PROTECTED;
} else {
AstNode classSpecifier = node.getFirstAncestor(CxxGrammarImpl.classSpecifier);
if (classSpecifier != null) {
AstNode enclosingSpecifierNode =
classSpecifier.getFirstDescendant(CxxKeyword.STRUCT, CxxKeyword.CLASS, CxxKeyword.ENUM);
if (enclosingSpecifierNode != null) {
switch ((CxxKeyword) enclosingSpecifierNode.getToken().getType()) {
case STRUCT:
// struct members have public access, thus access level
// is the access level of the enclosing classSpecifier
return isPublicApiMember(classSpecifier);
case CLASS:
// default access in classes is private
return false;
default:
LOG.error(
"isPublicApiMember unhandled case: {} at {}",
enclosingSpecifierNode.getType(),
enclosingSpecifierNode.getTokenLine());
return false;
}
} else {
LOG.error(
"isPublicApiMember: failed to get enclosing classSpecifier for node at {}",
node.getTokenLine());
return false;
}
}
// global member
return true;
}
}
private void visitDeclarator(AstNode declarator, AstNode docNode) {
// look for block documentation
List<Token> comments = getBlockDocumentation(docNode);
// documentation may be inlined
if (comments.isEmpty()) {
comments = getDeclaratorInlineComment(docNode);
}
AstNode declaratorId = declarator.getFirstDescendant(CxxGrammarImpl.declaratorId);
if (declaratorId == null) {
LOG.error("null declaratorId: {}", AstXmlPrinter.print(declarator));
} else {
visitPublicApi(declaratorId, declaratorId.getTokenValue(), comments);
}
}
private static boolean hasSuperReferenceReturnedExpression(AstNode node) {
AstNode returnStatement = node.getFirstDescendant(JavaGrammar.RETURN_STATEMENT);
AstNode expression = returnStatement.getFirstChild(JavaGrammar.EXPRESSION);
return expression != null && isSuperReference(expression);
}