xtext: How to disable textual input validation for generated xtext plugins (dsl)

1
votes

In Xtext there are few different kinds of validations which xtext takes care automatically. Is there any possibility to disable them?

  • Lexer/Parser: Syntactical Validation
  • Linker: Crosslink Validation

I am trying to disable the parser/lexer for being able to edit very huge files into a dsl editor. As far as I can see it is not possible to do from mwe2 workflow, as following fragment is the entry point for being able to open the editor.

fragment = parser.antlr.XtextAntlrUiGeneratorFragment auto-inject {}

I have mentioned that InternalMysDslLexer class is instantiated many times while I am typing something. Should I override this class? what would be the correct approach?

Thank you.

1
eclipse-plugindslxtextlexermwe

1 Answers

2
votes

To disable linking override ILinker in your Runtime module:

public Class<? extends ILinker> bindILinker() {
    return MyLinker.class;
}

And then override doLinkModel() to do noting (only for huge files I guess):

public class MyLinker extends LazyLinker {
    protected void doLinkModel(final EObject model, IDiagnosticConsumer consumer) {}
}

Not sure what you mean by saying you want to disable syntax validation. This would disable all the Xtext features. Isn't it better to simply edit huge files using a regular text editor instead of Xtext one?

There's also a lot of resources on Xtext performance on SO, Eclipse Xtext community forum, and various blogs.