Xtext antlr options trading
Usually this is done with the static methods of Guice. The entry point for Xtext code generation is XtextGeneratorwhich is composed of a general configuration and a xtext antlr options trading of language configurations. And this is how it works: When the above class is instantiated, Guice sees that it requires an instance of IScopeProvider and assigns it to the specified field or method parameter. Please forgive us the overuse of the term provider.
The main contribution of StandardLanguage is a default list of generator fragments that includes all features of Xtext. The generator also contributes to shared project resources such as the plugin. Language Configuration Xtext antlr options trading base class for describing a language configuration is XtextGeneratorLanguagewhose most important parameters are name — The name of the language exactly as specified in the first line of your grammar definition grammarUri — A URI pointing to the grammar definition file; if omitted, the grammar file is assumed to be in the Java source folder of xtext antlr options trading runtime project and to be named according to the language name.
You can take the following configuration as a template:. If you want to change or provide configuration at runtime i. It is composed of several descriptors for the individual subprojects:
MWE2 Modeling Workflow Engine allows to compose object graphs declaratively in a very compact manner. This means that everything which is created via extension points is managed by Guice as well, i. It also registers the Resource. The actual code generation is performed by generator fragments contained in a language configuration. In order to xtext antlr options trading able to find the referenced package in the language generator, its Ecore generator model has to xtext antlr options trading mentioned in the language configuration:
That binder provides a fluent API to define the mentioned mappings. The interpreter will basically do the same as the following main method: The Xtext generator needs to know the structure of your project in order to generate code into the correct paths. Guice of course xtext antlr options trading to know how to instantiate real objects for declared dependencies. It is not possible to remove fragments from the StandardLanguage.
The DefaultGeneratorModule xtext antlr options trading actually a Guice module, which xtext antlr options trading be subclassed in a similar way as explained in Dependency Injection for overriding default configurations. The setup method returns an Injectorwhich can further be used to obtain a parser, etc. In order to migrate an older Xtext project to this new infrastructure, the recommended approach is to create a new Xtext project and copy the grammar and existing configuration from the old project to the new one step by step. Xtext may be used in different environments which introduce different constraints.
Each language configuration corresponds to a specific grammar file and allows to configure the generated code for the respective language. The main contribution of StandardLanguage is a default list of generator fragments that includes all features of Xtext. This means that everything xtext antlr options trading is created via extension points is managed by Guice as well, i. The base class for describing the project structure is XtextProjectConfig.
This one can be used if you need a hook whenever an instance of a certain type is created. Configuration Xtext offers two levels on which you can configure your language: It is composed of several descriptors for the individual subprojects:. With plain Guice modules one implements a method called configure and gets a Binder passed xtext antlr options trading.