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TypeUtils: contracts

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This commit is contained in:
Tagir Valeev
2016-12-06 18:21:59 +07:00
parent 4f42cfc0ad
commit 3ea89b2efa
1 changed files with 5 additions and 0 deletions
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plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/psiutils/TypeUtils.java
+5
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@@ -21,6 +21,7 @@ import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.util.InheritanceUtil;
import com.intellij.psi.util.PsiUtil;
import com.intellij.psi.util.TypeConversionUtil;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@@ -44,6 +45,7 @@ public class TypeUtils {
private TypeUtils() {}
@Contract("_, null -> false")
public static boolean typeEquals(@NonNls @NotNull String typeName, @Nullable PsiType targetType) {
return targetType != null && targetType.equalsToText(typeName);
}
@@ -76,10 +78,12 @@ public class TypeUtils {
return sourcePrecision != null && targetPrecision != null && targetPrecision.intValue() < sourcePrecision.intValue();
}
@Contract("null -> false")
public static boolean isJavaLangObject(@Nullable PsiType targetType) {
return typeEquals(CommonClassNames.JAVA_LANG_OBJECT, targetType);
}
@Contract("null -> false")
public static boolean isJavaLangString(@Nullable PsiType targetType) {
return typeEquals(CommonClassNames.JAVA_LANG_STRING, targetType);
}
@@ -88,6 +92,7 @@ public class TypeUtils {
return isOptional(PsiUtil.resolveClassInClassTypeOnly(type));
}
@Contract("null -> false")
public static boolean isOptional(PsiClass aClass) {
if (aClass == null) {
return false;