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;
}
@Override
public void visitIdentifier(IdentifierTree tree) {
if (methodSymbol.equals(tree.symbol().owner())) {
used.add(tree.symbol());
}
super.visitIdentifier(tree);
}