以编程方式修改Xtext生成的Mwe2工作流

Question

我正在以编程方式运行Mwe2工作流，我需要将Terminals.xtext的referencedResource添加到GenerateYourDsl.mwe2文件，以便成功运行此工作流。提到GenerateYourDsl.mwe2文件是由我在创建新项目时由Xtext生成的 - 我没有修改它。是否有可能将对象从此工作流中取出，在Java中访问它并将此属性添加到工作流的组件属性的语言属性中？

这是工作流程：

Workflow {

    component = XtextGenerator {
        configuration = {
            project = StandardProjectConfig {
                baseName = "org.example.yourdsl"
                rootPath = rootPath
                eclipsePlugin = {
                    enabled = true
                }
                createEclipseMetaData = true
            }
            code = {
                encoding = "UTF-8"
                lineDelimiter = "\n"
                fileHeader = "/*\n * generated by Xtext \${version}\n */"
            }
        }
        language = StandardLanguage {
            name = "org.example.yourdsl.YourDsl"
            fileExtensions = "yourdsl"
            //following line needs to be added - in original generated workflow it is not
           referencedResource = "platform:/resource/org.eclipse.xtext/org/eclipse/xtext/common/Terminals.xtext"

            serializer = {
                generateStub = false
            }
            validator = {
                // composedCheck = "org.eclipse.xtext.validation.NamesAreUniqueValidator"
                // Generates checks for @Deprecated grammar annotations, an IssueProvider and a corresponding PropertyPage
                generateDeprecationValidation = true
            }
        }
    }
}

我正在以编程方式生成项目（使用CliProjectsCreator和WizardConfiguration）并且需要在生成项目时运行工作流以生成src，src-gen文件等。但是我正在尝试以编程方式运行它（而不是在Eclipse中）在我的语法中使用了终端，我收到了这个错误：

XtextLinkingDiagnostic: null:1 Couldn't resolve reference to Grammar 'org.eclipse.xtext.common.Terminals'.
TransformationDiagnostic: null:36 Cannot create datatype WS. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)
TransformationDiagnostic: null:39 Cannot create datatype NAME_TERMINAL. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)
TransformationDiagnostic: null:42 Cannot create datatype VALUE_TERMINAL. If this is supposed to return EString, make sure you have imported 'http://www.eclipse.org/emf/2002/Ecore' (ErrorCode: NoSuchTypeAvailable)

Answer 1

应该没有必要明确地添加终端语法。如果使用适当的类路径调用工作流，则应通过org.eclipse.xtext.resource.ClassloaderClasspathUriResolver.resolve(Object, URI)在类路径中找到它。看一下选择maven时向导创建的内容：调用maven exec插件调用Mwe2Launcher main并使用正确的类路径