@Beta
@ImplementedBy(OnlyWithoutErrors)
interface IShouldGenerate {
	
	/**
	 * whether code should be generated for this resource.
	 */
	def boolean shouldGenerate(Resource resource, CancelIndicator cancelIndicator);
	
	@Beta
	static class OnlyWithoutErrors implements IShouldGenerate {
		
		@Inject IResourceValidator resourceValidator
		
		override shouldGenerate(Resource resource, CancelIndicator cancelIndicator) {
			if (!resource.errors.isEmpty)
				return false
			val issues = resourceValidator.validate(resource, CheckMode.NORMAL_AND_FAST, cancelIndicator)
			return !issues.exists[severity == Severity.ERROR]
		}
		
	}
	@Beta
	static class Always implements IShouldGenerate {
		
		override shouldGenerate(Resource resource, CancelIndicator cancelIndicator) {
			return true
		}
		
	}
}