@Override
public void visitMethodInvocation(MethodInvocationTree syntaxNode) {
final ExpressionTree methodSelect = syntaxNode.methodSelect();
if (isClosingResource(syntaxNode.symbol())) {
if (methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
final ExpressionTree targetExpression =
((MemberSelectExpressionTree) methodSelect).expression();
if (targetExpression.is(Tree.Kind.IDENTIFIER)) {
final IdentifierTree identifier = (IdentifierTree) targetExpression;
programState = closeResource(programState, programState.getValue(identifier.symbol()));
} else {
programState = closeResource(programState, programState.peekValue());
}
}
} else if (syntaxNode.methodSelect().is(Tree.Kind.MEMBER_SELECT)
&& isOpeningResultSet(syntaxNode.symbol())) {
final SymbolicValue value = getTargetValue(syntaxNode);
constraintManager.setValueFactory(new WrappedValueFactory(value));
} else if (isClosingResultSets(syntaxNode.symbol())) {
if (methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
final SymbolicValue value = getTargetValue(syntaxNode);
closeResultSetsRelatedTo(value);
}
} else {
closeArguments(syntaxNode.arguments(), 1);
}
}
public static IdentifierTree methodName(MethodInvocationTree mit) {
IdentifierTree id;
if (mit.methodSelect().is(Tree.Kind.IDENTIFIER)) {
id = (IdentifierTree) mit.methodSelect();
} else {
id = ((MemberSelectExpressionTree) mit.methodSelect()).identifier();
}
return id;
}
@Override
public void visitMethodInvocation(MethodInvocationTree syntaxNode) {
if (syntaxNode.methodSelect().is(Tree.Kind.MEMBER_SELECT)
&& needsClosing(syntaxNode.symbolType())) {
final ExpressionTree targetExpression =
((MemberSelectExpressionTree) syntaxNode.methodSelect()).expression();
if (targetExpression.is(Tree.Kind.IDENTIFIER)
&& !isWithinTryHeader(syntaxNode)
&& (syntaxNode.symbol().isStatic() || isJdbcResourceCreation(targetExpression))) {
programState =
programState.addConstraint(
programState.peekValue(),
new ObjectConstraint(false, false, syntaxNode, Status.OPENED));
}
}
}
private void buildMethodInvocation(MethodInvocationTree tree) {
MethodInvocationTree mit = tree;
currentBlock.elements.add(mit);
build(mit.methodSelect());
for (ExpressionTree arg : Lists.reverse(mit.arguments())) {
build(arg);
}
}
@Override
public void visitMethodInvocation(MethodInvocationTree tree) {
if (TO_STRING_MATCHERS.anyMatch(tree)) {
ExpressionTree abstractTypedTree =
((MemberSelectExpressionTree) tree.methodSelect()).expression();
if (abstractTypedTree.is(Kind.NEW_CLASS) || isValueOfInvocation(abstractTypedTree)) {
String typeName = abstractTypedTree.symbolType().toString();
createIssue(tree, typeName);
}
}
super.visitMethodInvocation(tree);
}
private SymbolicValue getTargetValue(MethodInvocationTree syntaxNode) {
final ExpressionTree targetExpression =
((MemberSelectExpressionTree) syntaxNode.methodSelect()).expression();
final SymbolicValue value;
if (targetExpression.is(Tree.Kind.IDENTIFIER)) {
final IdentifierTree identifier = (IdentifierTree) targetExpression;
value = programState.getValue(identifier.symbol());
} else {
value = programState.peekValue();
}
return value;
}
private static boolean isEqualsMethod(MethodInvocationTree syntaxNode) {
if (syntaxNode.arguments().size() == 1) {
ExpressionTree methodSelect = syntaxNode.methodSelect();
if (methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
MemberSelectExpressionTree expression = (MemberSelectExpressionTree) methodSelect;
if ("equals".equals(expression.identifier().name())
&& syntaxNode.symbol().isMethodSymbol()) {
Symbol.MethodSymbol symbol = (Symbol.MethodSymbol) syntaxNode.symbol();
return symbol.parameterTypes().get(0).is("java.lang.Object");
}
}
}
return false;
}
private void visitMethodInvocationTree(MethodInvocationTree methodInvocationTree) {
if (isValueOfInvocation(methodInvocationTree)) {
checkForUnboxing(methodInvocationTree.arguments().get(0));
} else if (isUnboxingMethodInvocation(methodInvocationTree)) {
ExpressionTree methodSelect = methodInvocationTree.methodSelect();
if (methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
MemberSelectExpressionTree memberSelectExpressionTree =
(MemberSelectExpressionTree) methodSelect;
checkForBoxing(memberSelectExpressionTree.expression());
}
} else {
Symbol symbol = methodInvocationTree.symbol();
if (symbol.isMethodSymbol()) {
List<Type> parametersTypes = ((Symbol.MethodSymbol) symbol).parameterTypes();
checkMethodInvocationArguments(methodInvocationTree, parametersTypes);
}
}
}
@Nullable
private State checkAndAdvanceState(
MethodInvocationTree mit, State requiredState, State nextState) {
ExpressionTree methodSelect = mit.methodSelect();
if (methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
ExpressionTree expressionTree = ((MemberSelectExpressionTree) methodSelect).expression();
if (expressionTree.is(Tree.Kind.IDENTIFIER)) {
Symbol symbol = ((IdentifierTree) expressionTree).symbol();
Map<Symbol, State> symbolStateMap = symbolStack.peek();
if (symbolStateMap != null
&& symbolStateMap.containsKey(symbol)
&& requiredState.equals(symbolStateMap.get(symbol))) {
symbolStateMap.put(symbol, nextState);
return nextState;
}
}
}
return null;
}
private void checkForUnboxing(ExpressionTree expressionTree) {
if (!expressionTree.is(Tree.Kind.METHOD_INVOCATION)) {
return;
}
MethodInvocationTree methodInvocationTree = (MethodInvocationTree) expressionTree;
if (isUnboxingMethodInvocation(methodInvocationTree)) {
ExpressionTree methodSelect = methodInvocationTree.methodSelect();
if (methodSelect.is(Tree.Kind.MEMBER_SELECT)) {
MemberSelectExpressionTree memberSelectExpressionTree =
(MemberSelectExpressionTree) methodSelect;
ExpressionTree unboxedExpression = memberSelectExpressionTree.expression();
String unboxingResultTypeName = methodInvocationTree.symbolType().fullyQualifiedName();
if (unboxingResultTypeName.equals(
PRIMITIVE_TYPES_BY_WRAPPER.get(unboxedExpression.symbolType().fullyQualifiedName()))) {
addUnboxingIssue(expressionTree, unboxedExpression);
}
}
}
}
private static Type getMethodOwner(MethodInvocationTree mit) {
if (mit.methodSelect().is(Kind.MEMBER_SELECT)) {
return ((MemberSelectExpressionTree) mit.methodSelect()).expression().symbolType();
}
return mit.symbol().owner().type();
}