Xtext Domain Model Example

Xbase allows us to easily reuse and embed modern statically typed expressions as well as java type signatures in our language.

Xtext domain model example. In particular we employ the following technologies from the eclipse project. This is a tutorial on how to build a web based ide with support for an example domain specific language dsl using open source technologies only. As you can see it already contains a simple hello world grammar.

Xtext to implement a language server for a domain specific language. I m going to show how to adjust xtext s domain model example to show hovers on keywords such as. For example to model a database the domain model would define concepts such as table and column with properties such as name and size and relationships such as columns between a table and its columns.

Meaning an environment for developing languages. It is good to be clear and unambiguous whether the code is generated or is to be manipulated by the developer. Aspects of meta modeling.

The example project provides a good overview of the potential use of test driven development when creating a dsl. The hover in the example above pops up when the cursor is over hover the name of a greeting but not when it is over hello which is a keyword belonging to a greeting. In org xtext example mydsl you can define the grammar of your dsl in org xtext example mydsl generator you will be able to create instances of your dsl the so called model and into org xtext example mydsl ui editor classes for your dsl will be generated.

A program domain model may look as follows. Brief description of xtext xtext is a language workbench. Further there is a domain model example that comes with the xtext plugins including more than 800 junit test cases.

The model in turn is a concrete program with many variable definitions. A meta model for a programming language defines that e g variables can be defined. The wizard will automatically open the grammar file domainmodel xtext in the editor.