indexer

I have a makefile project comprised of many source, header and other files, which I am trying to convert to an Eclipse "native" project. The problem that the Indexer reports errors and warning on files that exist in the directories but are excluded form the build. As a consequence, large parts of my directory tree are marked with the red x sign. How can I make the Indexer to ignore specific file and/or directories? Note: when defining a directory as "Derived" it is excluded form further searches, but unfortunately not from code analysis. Using project Resource Filters does not solve the

Eclipse CDT provides two indexers for C/C++ code (Preferences > C/C++ > Indexer). Does anybody know what the exact difference is between these two? The help file isn't exactly enlightening: "CDT supports the contribution of additional indexers, with 2 indexers being provided with the default CDT release: Fast C/C++ Indexer : provides fastest indexing capabilities - both declarations and cross reference information. This is the recommended indexer. Full C/C++ Indexer : provides even more accurate indexing capabilities at the cost of performance - both declarations and cross reference

I'm trying to write a method that acts as a setter and takes some extra arguments besides the assigned value. Silly example: class WordGenerator def []=(letter, position, allowed) puts "#{letter}#{allowed ? ' now' : ' no longer'} allowed at #{position}" end def allow=(letter, position, allowed) # ... end end Writing it as an indexer works and I can call it like this: gen = WordGenerator.new gen['a', 1] = true # or explicitly: gen.[]=('a', 1, true) But when I try any of the following, the interpreter complains: gen.allow('a', 1) = false # syntax error gen.allow=('a', 1, false) # syntax error

Doing some code reading and stumbled upon this snippet that I haven't seen before: public SomeClass { public someInterface this[String strParameter] { get { return SomeInternalMethod(strParameter); } } } It looks like it is called as follows: SomeClass _someClass = new SomeClass(); SomeInterface returnedValue = _someClass["someString"]; I am interested in where this function would be appropriate or what the intent of writing in this style. For example why would this be preferred over simply calling the function? Eric Lippert See the language specification, section 10.9, which states: An

Is it currently possible to implement an indexer on a class in TypeScript? class MyCollection { [name: string]: MyType; } This doesn't compile. I can specify an indexer on an interface, of course, but I need methods on this type as well as the indexer, so an interface won't suffice. Thanks. You cannot implement a class with an indexer. You can create an interface, but that interface cannot be implemented by a class. It can be implemented in plain JavaScript, and you can specify functions as well as the indexer on the interface: class MyType { constructor(public someVal: string) { } } interface

I am trying to find a way to use SectionIndexer , instead of AlphabetIndexer . What I am interested to do is to have elements of a string arrays on the section headers instead of alphabets. I have not been able to find any sample code using section indexer. Here is a sample code for AlphabetIndexer : private AlphabetIndexer indexer; indexer = new AlphabetIndexer(c, c.getColumnIndexOrThrow( DbHelper.COUNTRIES_NAME),"ABCDEFGHIJKLMNOPQRSTUVWXYZ"); Is it possible to pass a stringArray instead of "ABCDEFGHIJKLMNOPQRSTUVWXYZ" to the AlphabetIndexer so I can for example instead of "A", "B", ..."Z" as

I'd like to use indexers more, but I'm not sure when to use them. All I've found online are examples that use classes like MyClass and IndexerClass . What about in a school system where there are Students and Teachers, and each Teacher has a list of Students that they're in charge of - any need for indexers in that scenario? For simplicity's sake: each Student can only belong to one Teacher. Hassan Tareq Indexer is a highly specialized property which allows instances of a class (or struct) to be indexed just like an array(properties can be static but indexers cannot). Why use indexers: -