Add Null check for virtualFile

Author: xterao

src/main/kotlin/org/domaframework/doma/intellij/common/dao/DaoMethodUtil.kt

@@ -39,7 +39,8 @@ import org.domaframework.doma.intellij.extension.getModule
  */
 fun findDaoMethod(originalFile: PsiFile): PsiMethod? {
     val project = originalFile.project
-    val module = project.getModule(originalFile.virtualFile) ?: return null
+    val virtualFile = originalFile.virtualFile ?: return null
+    val module = project.getModule(virtualFile) ?: return null
 
     if (isInjectionSqlFile(originalFile)) {
         originalFile.let {
@@ -52,7 +53,7 @@ fun findDaoMethod(originalFile: PsiFile): PsiMethod? {
         val relativePath =
             formatDaoPathFromSqlFilePath(
                 originalFile,
-                project.getContentRoot(originalFile.virtualFile)?.path ?: "",
+                project.getContentRoot(virtualFile)?.path ?: "",
                 fileTypeName,
             )
         val daoClassName: String =

src/main/kotlin/org/domaframework/doma/intellij/common/psi/PsiDaoMethod.kt

@@ -166,7 +166,7 @@ class PsiDaoMethod(
                     PsiManager
                         .getInstance(psiProject)
                         .findDirectory(virtualFile) ?: return@runWriteCommandAction
-                val sqlVirtualFile = sqlOutputDirPath.createFile(sqlFileName).virtualFile
+                val sqlVirtualFile = sqlOutputDirPath.createFile(sqlFileName).virtualFile ?: return@runWriteCommandAction
                 FileEditorManager
                     .getInstance(psiProject)
                     .openFile(sqlVirtualFile, true)

src/main/kotlin/org/domaframework/doma/intellij/refactoring/dao/DaoRenameProcessor.kt

@@ -42,7 +42,7 @@ class DaoRenameProcessor : RenameJavaClassProcessor() {
         val daoClass = getDaoClass(element.containingFile) ?: return
 
         val project = element.project
-        val virtualFile = element.containingFile.virtualFile
+        val virtualFile = element.containingFile.virtualFile ?: return
         project.getContentRoot(virtualFile)?.let {
             element.module?.getPackagePathFromDaoPath(virtualFile)?.let {
                 if (it.name == daoClass.name) {