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[java] Fix LanguageLevelUtil#getLastIncompatibleLanguageLevel

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The last incompatible language level should be the previous from the first compatible one. #IDEA-370797

GitOrigin-RevId: 7524b14245ad71feb69607e7b2558290841155eb
This commit is contained in:
Bart van Helvert
2025-04-14 23:23:10 +00:00
committed by intellij-monorepo-bot
parent 8b7316282f
commit 26edecf789
1 changed files with 14 additions and 9 deletions
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java/java-analysis-api/src/com/intellij/openapi/module/LanguageLevelUtil.java
+14 -9
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@@ -18,7 +18,6 @@ import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
public final class LanguageLevelUtil {
@@ -56,15 +55,19 @@ public final class LanguageLevelUtil {
}
/**
* @param api The language level to get the next from.
* @param languageLevel The language level to get the next from.
* @return Next {@link LanguageLevel} that is not in preview or null if there is no language level.
*/
public static @Nullable LanguageLevel getNextLanguageLevel(@NotNull LanguageLevel api) {
List<LanguageLevel> levels = LanguageLevel.getEntries();
for (LanguageLevel level : levels.subList(api.ordinal() + 1, levels.size())) {
if (!level.isPreview()) return level;
}
return null;
public static @Nullable LanguageLevel getNextLanguageLevel(@NotNull LanguageLevel languageLevel) {
return LanguageLevel.forFeature(languageLevel.feature() + 1);
}
/**
* @param languageLevel The language level to get the previous from.
* @return Previous {@link LanguageLevel} that is not in preview or null if there is no language level.
*/
public static @Nullable LanguageLevel getPrevLanguageLevel(@NotNull LanguageLevel languageLevel) {
return LanguageLevel.forFeature(languageLevel.feature() - 1);
}
/**
@@ -88,7 +91,9 @@ public final class LanguageLevelUtil {
*/
@Deprecated(forRemoval = true)
public static @Nullable LanguageLevel getLastIncompatibleLanguageLevel(@NotNull PsiMember member, @NotNull LanguageLevel languageLevel) {
return JdkApiCompatibilityCache.getInstance().firstCompatibleLanguageLevel(member, languageLevel);
LanguageLevel firstCompatibleLanguageLevel = JdkApiCompatibilityCache.getInstance().firstCompatibleLanguageLevel(member, languageLevel);
if (firstCompatibleLanguageLevel == null) return null;
return getPrevLanguageLevel(firstCompatibleLanguageLevel);
}
/**