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Android Extensions: Check the backing 'virtualFile' validity before calling 'findFile()' (EA-124028)

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This commit is contained in:
Yan Zhulanow
2018-07-13 16:29:24 +03:00
parent a4b3653e1c
commit 37411c823d
1 changed files with 12 additions and 1 deletions
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plugins/android-extensions/android-extensions-idea/src/org/jetbrains/kotlin/android/synthetic/idea/res/IDEAndroidLayoutXmlFileManager.kt
+12 -1
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@@ -18,7 +18,10 @@ package org.jetbrains.kotlin.android.synthetic.idea.res
import com.intellij.openapi.module.Module
import com.intellij.openapi.roots.ProjectRootModificationTracker
import com.intellij.openapi.vfs.LocalFileSystem
import com.intellij.openapi.vfs.VirtualFile
import com.intellij.psi.PsiElement
import com.intellij.psi.PsiFile
import com.intellij.psi.PsiManager
import com.intellij.psi.impl.PsiTreeChangePreprocessor
import com.intellij.psi.util.CachedValue
@@ -34,6 +37,7 @@ import org.jetbrains.kotlin.descriptors.ModuleDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameUnsafe
import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstance
import java.io.File
class IDEAndroidLayoutXmlFileManager(val module: Module) : AndroidLayoutXmlFileManager(module.project) {
override val androidModule: AndroidModule?
@@ -66,7 +70,7 @@ class IDEAndroidLayoutXmlFileManager(val module: Module) : AndroidLayoutXmlFileM
val psiManager = PsiManager.getInstance(project)
val layouts = layoutGroup.layouts.map { psiFile ->
// Sometimes due to a race of later-invoked runnables, the PsiFile can be invalidated; make sure to refresh if possible,
val layout = if (psiFile.isValid) psiFile else psiManager.findFile(psiFile.virtualFile)
val layout = if (psiFile.isValid) psiFile else psiManager.findFileSafe(psiFile.virtualFile)
val resources = arrayListOf<AndroidResource>()
layout?.accept(AndroidXmlVisitor { id, widgetType, attribute ->
@@ -78,6 +82,13 @@ class IDEAndroidLayoutXmlFileManager(val module: Module) : AndroidLayoutXmlFileM
return AndroidLayoutGroup(layoutGroup.name, layouts)
}
private fun PsiManager.findFileSafe(virtualFile: VirtualFile): PsiFile? {
if (virtualFile.isValid)
return findFile(virtualFile)
return null
}
override fun propertyToXmlAttributes(propertyDescriptor: PropertyDescriptor): List<PsiElement> {
val fqPath = propertyDescriptor.fqNameUnsafe.pathSegments()
if (fqPath.size <= SYNTHETIC_PACKAGE_PATH_LENGTH) return listOf()