Add @Nullable annotations where they were missing.
PiperOrigin-RevId: 459225289
Change-Id: Ia7c536a8ab713743e7a83b3ec8fe864e9a79b062
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java b/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
index 58dc511..98eab47 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
@@ -1361,6 +1361,7 @@
return getPrerequisiteArtifact(attributeName);
}
+ @Nullable
private Artifact transitiveInfoCollectionToArtifact(
String attributeName, TransitiveInfoCollection target) {
if (target != null) {
@@ -1378,6 +1379,7 @@
* Returns the sole file in the "srcs" attribute. Reports an error and (possibly) returns null if
* "srcs" does not identify a single file of the expected type.
*/
+ @Nullable
public Artifact getSingleSource(String fileTypeName) {
List<Artifact> srcs = PrerequisiteArtifacts.get(this, "srcs").list();
switch (srcs.size()) {
@@ -1453,6 +1455,7 @@
* that it is a valid label, and that it is referring to a local target. Reports a warning
* otherwise.
*/
+ @Nullable
public Label getLocalNodepLabelAttribute(String attrName) {
Label label = attributes().get(attrName, BuildType.NODEP_LABEL);
if (label == null) {
@@ -1545,6 +1548,7 @@
* @return null if the output list is empty, the artifact for the first item of the output list
* otherwise
*/
+ @Nullable
public Artifact getOutputArtifact() {
List<Artifact> outs = getOutputArtifacts();
if (outs.size() != 1) {
