@Override
public void visitIdentifier(IdentifierTree tree) {
if (methodSymbol.equals(tree.symbol().owner())) {
used.add(tree.symbol());
}
super.visitIdentifier(tree);
}
@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);
}
}
private SymbolicValue createIdentifierSymbolicValue(IdentifierTree identifier) {
final Type type = identifier.symbol().type();
if (type != null && type.is("java.lang.Boolean")) {
if ("TRUE".equals(identifier.name())) {
return SymbolicValue.TRUE_LITERAL;
} else if ("FALSE".equals(identifier.name())) {
return SymbolicValue.FALSE_LITERAL;
}
}
return createDefaultSymbolicValue();
}
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;
}
@CheckForNull
private static Tree getAssignedVariable(ExpressionTree expression) {
if (expression.is(Tree.Kind.ARRAY_ACCESS_EXPRESSION)) {
return getAssignedVariable(((ArrayAccessExpressionTree) expression).expression());
}
IdentifierTree identifier;
if (expression.is(Tree.Kind.IDENTIFIER)) {
identifier = (IdentifierTree) expression;
} else {
identifier = ((MemberSelectExpressionTree) expression).identifier();
}
return identifier.symbol().declaration();
}
@Override
public void visitReturnStatement(ReturnStatementTree syntaxNode) {
SymbolicValue currentVal = programState.peekValue();
if (currentVal != null) {
final ExpressionTree expression = syntaxNode.expression();
if (expression != null) {
if (expression.is(Tree.Kind.IDENTIFIER)) {
final IdentifierTree identifier = (IdentifierTree) expression;
currentVal = programState.getValue(identifier.symbol());
} else {
currentVal = programState.peekValue();
}
programState = closeResource(programState, currentVal);
}
}
}
private void addAssignment(IdentifierTree identifier) {
Symbol reference = identifier.symbol();
if (!reference.isUnknown()) {
assignments.put(reference, identifier);
}
}
@Override
public void visitIdentifier(IdentifierTree tree) {
super.visitIdentifier(tree);
checkSymbol(tree.symbol());
}