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invalidate AST on external vfs changes

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This commit is contained in:
peter
2014-08-30 22:16:46 +02:00
parent be5aa514c3
commit c9eab2cdc2
4 changed files with 50 additions and 3 deletions
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java/java-tests/testSrc/com/intellij/psi/MiscPsiTest.java
+21
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@@ -24,6 +24,7 @@ import com.intellij.openapi.vfs.VfsUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.pom.java.LanguageLevel;
import com.intellij.psi.impl.source.tree.LazyParseableElement;
import com.intellij.testFramework.PlatformTestUtil;
import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase;
import org.jetbrains.annotations.NotNull;
@@ -276,4 +277,24 @@ public class MiscPsiTest extends LightCodeInsightFixtureTestCase {
assertEquals("class A{}", psiClass.getText());
assertEquals(" class A{}", document.getText());
}
public void testASTBecomesInvalidOnExternalChange() {
final String text = "class A{}";
final PsiJavaFile file = (PsiJavaFile)myFixture.addFileToProject("a.java", text);
PsiElement leaf = file.findElementAt(5);
PlatformTestUtil.tryGcSoftlyReachableObjects();
assertNull(PsiDocumentManager.getInstance(getProject()).getCachedDocument(file));
new WriteCommandAction.Simple(getProject()) {
@Override
protected void run() throws Throwable {
VfsUtil.saveText(file.getVirtualFile(), text + " ");
}
}.execute();
assertTrue(file.isValid());
assertFalse(leaf.isValid());
assertNotSame(leaf, file.findElementAt(5));
}
}