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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
import static com.google.common.base.CaseFormat.LOWER_CAMEL;
import static com.google.common.base.CaseFormat.UPPER_UNDERSCORE;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.Iterables.getOnlyElement;
import static dagger.internal.codegen.extension.DaggerCollectors.toOptional;
Expand Down Expand Up @@ -786,5 +787,14 @@ protected Void defaultAction(TypeMirror e, Set<Element> visited) {
}
}

public static XTypeElement requireTypeElement(XType type) {
XTypeElement typeElement = type.getTypeElement();
checkNotNull(
typeElement,
"XType.getTypeElement() is required but got null for: %s",
toStableString(type));
return typeElement;
}

private XTypes() {}
}
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