【发布时间】:2019-03-09 14:33:33
【问题描述】:
我正在以编程方式运行 Mwe2 工作流程,我需要将 Terminals.xtext 的 referencedResource 添加到 GenerateYourDsl.mwe2 文件中,以便成功运行此工作流程。提到的 GenerateYourDsl.mwe2 文件是在我创建新项目时由 Xtext 生成的 - 我没有修改它。 是否有可能从这个工作流中获取对象,在 Java 中访问它并将这个属性添加到工作流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。但是当我尝试运行时它以编程方式(不在 Eclipse 中)并且在我的语法中使用了终端,我收到此错误:
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)
【问题讨论】:
-
你为什么要这样做? terminal.xtext 隐含可用
-
当您以编程方式运行工作流时,它不隐式可用 - 而不是在 Eclipse 中。
-
你能提供更多细节吗?也许你明智地做了一些奇怪的类路径
-
我把它加到了描述的末尾。
-
你应该调试 org.eclipse.xtext.xtext.XtextLinkingService.getUsedGrammar(Grammar, INode) org.eclipse.xtext.resource.ClassloaderClasspathUriResolver.resolve(Object, URI) 你说的“运行”是什么意思以编程方式”