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[java-psi] LambdaUtil.getFunctionalInterfaceType: force returning null type for variables with inferred type

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Otherwise, we may have a chicken-egg problem, when the inferred type is computed using its initializer and the initializer type is computed using the variable type which is not computed yet
Fixes IDEA-371650 [Java] test problem com.intellij.java.codeInsight.daemon.LightAdvLVTIHighlightingTest.testSimpleAvailability: Non-idempotent computation


(cherry picked from commit 69f4608ea9ba6ce98cda8c02acdc51134d4c5552)

IJ-CR-163729

GitOrigin-RevId: 6dbe3502b3d730b04766567feaff8442988971f9
This commit is contained in:
Tagir Valeev
2025-05-21 15:58:00 +02:00
committed by intellij-monorepo-bot
parent b99f825790
commit c890dda4f6
2 changed files with 3 additions and 3 deletions
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4
java/java-psi-api/src/com/intellij/psi/LambdaUtil.java
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@@ -390,7 +390,9 @@ public final class LambdaUtil {
return castType;
}
else if (parent instanceof PsiVariable) {
return ((PsiVariable)parent).getType();
PsiVariable variable = (PsiVariable)parent;
PsiTypeElement typeElement = variable.getTypeElement();
return typeElement != null && typeElement.isInferredType() ? null : variable.getType();
}
else if (parent instanceof PsiAssignmentExpression && expression instanceof PsiExpression && !PsiUtil.isOnAssignmentLeftHand((PsiExpression)expression)) {
final PsiExpression lExpression = ((PsiAssignmentExpression)parent).getLExpression();

2
java/java-tests/testSrc/com/intellij/java/codeInsight/daemon/LightAdvLVTIHighlightingTest.java
View File

@@ -8,7 +8,6 @@ import com.intellij.codeInspection.AnonymousCanBeLambdaInspection;
import com.intellij.codeInspection.redundantCast.RedundantCastInspection;
import com.intellij.openapi.projectRoots.JavaSdkVersion;
import com.intellij.openapi.projectRoots.Sdk;
import com.intellij.openapi.util.RecursionManager;
import com.intellij.pom.java.LanguageLevel;
import com.intellij.psi.CommonClassNames;
import com.intellij.psi.PsiClass;
@@ -43,7 +42,6 @@ public class LightAdvLVTIHighlightingTest extends LightDaemonAnalyzerTestCase {
}
public void testSimpleAvailability() {
RecursionManager.disableMissedCacheAssertions(getTestRootDisposable());
doTest();
}