private static Collection<MethodSymbol> filterMethods(Collection<Symbol> symbols) {
List<MethodSymbol> methods = Lists.newArrayList();
for (Symbol symbol : symbols) {
if (symbol.isMethodSymbol() && !isConstructor(symbol)) {
methods.add((MethodSymbol) symbol);
}
}
return methods;
}
private int referenceInstance(Symbol symbol) {
Symbol owner = symbol.owner();
if (owner != null && owner.isMethodSymbol()) {
// local variable, use owner of the method
owner = owner.owner();
}
int result = -1;
if (owner != null && !outerClasses.peek().equals(owner)) {
if (symbol.isUnknown()) {
result = atLeastOneReference.size() - 1;
} else if (!symbol.isStatic()) {
result = fromInstance(symbol, owner);
}
}
return result;
}
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);
}
}
}
private static boolean isMethodToExtract(Symbol symbol) {
return symbol.isMethodSymbol() && !"<init>".equals(symbol.name());
}
private static String getSymbolTypeName(Symbol symbol) {
return symbol.isMethodSymbol() ? "method" : "field";
}
private static boolean variableAndMethod(Symbol s1, Symbol s2) {
return s1.isVariableSymbol() && s2.isMethodSymbol();
}
private static boolean isOverriding(Symbol symbol) {
return symbol.isMethodSymbol()
&& BooleanUtils.isTrue(((MethodTreeImpl) symbol.declaration()).isOverriding());
}
private static boolean isMethodMatchingName(Symbol symbol, String matchName) {
return symbol.isMethodSymbol() && matchName.equals(symbol.name());
}
private static boolean isObjectsMethod(Symbol symbol, String methodName) {
return symbol.isMethodSymbol()
&& symbol.owner().type().is("java.util.Objects")
&& methodName.equals(symbol.name());
}