public void testOuterVarAccess() {
resolveSource("Test", "class Test { int i; class Inner { void test() { i++; } } }");
TypeDeclaration innerNode = (TypeDeclaration) nodesByType.get(ASTNode.TYPE_DECLARATION).get(1);
assertTrue(OuterReferenceResolver.needsOuterReference(innerNode.resolveBinding()));
PostfixExpression increment =
(PostfixExpression) nodesByType.get(ASTNode.POSTFIX_EXPRESSION).get(0);
List<IVariableBinding> path = OuterReferenceResolver.getPath(increment.getOperand());
assertNotNull(path);
assertEquals(2, path.size());
assertEquals("Test", path.get(0).getType().getName());
}
/*
* Must be one of:
* <ul>
* <li>[indexBinding]++</li>
* <li>++[indexBinding]</li>
* <li>[indexBinding]+= 1</li>
* <li>[indexBinding]= [indexBinding] + 1</li>
* <li>[indexBinding]= 1 + [indexBinding]</li>
* <ul>
*/
private boolean validateUpdaters(ForStatement statement) {
List<Expression> updaters = statement.updaters();
if (updaters.size() != 1) return false;
Expression updater = updaters.get(0);
if (updater instanceof PostfixExpression) {
PostfixExpression postfix = (PostfixExpression) updater;
if (!PostfixExpression.Operator.INCREMENT.equals(postfix.getOperator())) return false;
IBinding binding = getBinding(postfix.getOperand());
if (!fIndexBinding.equals(binding)) return false;
return true;
} else if (updater instanceof PrefixExpression) {
PrefixExpression prefix = (PrefixExpression) updater;
if (!PrefixExpression.Operator.INCREMENT.equals(prefix.getOperator())) return false;
IBinding binding = getBinding(prefix.getOperand());
if (!fIndexBinding.equals(binding)) return false;
return true;
} else if (updater instanceof Assignment) {
Assignment assignment = (Assignment) updater;
Expression left = assignment.getLeftHandSide();
IBinding binding = getBinding(left);
if (!fIndexBinding.equals(binding)) return false;
if (Assignment.Operator.PLUS_ASSIGN.equals(assignment.getOperator())) {
return isOneLiteral(assignment.getRightHandSide());
} else if (Assignment.Operator.ASSIGN.equals(assignment.getOperator())) {
Expression right = assignment.getRightHandSide();
if (!(right instanceof InfixExpression)) return false;
InfixExpression infixExpression = (InfixExpression) right;
Expression leftOperand = infixExpression.getLeftOperand();
IBinding leftBinding = getBinding(leftOperand);
Expression rightOperand = infixExpression.getRightOperand();
IBinding rightBinding = getBinding(rightOperand);
if (fIndexBinding.equals(leftBinding)) {
return isOneLiteral(rightOperand);
} else if (fIndexBinding.equals(rightBinding)) {
return isOneLiteral(leftOperand);
}
}
}
return false;
}
/*
* @see ASTVisitor#visit(PostfixExpression)
*/
public boolean visit(PostfixExpression node) {
node.getOperand().accept(this);
this.fBuffer.append(node.getOperator().toString());
return false;
}