Change BreakStatementTree and ContinueStatementTree getLabel() method to hasLabel()

PiperOrigin-RevId: 722809395

Author: Closure Team

src/com/google/javascript/jscomp/parsing/IRFactory.java

@@ -1518,7 +1518,7 @@ Node processBlock(BlockTree blockNode) {
 
     Node processBreakStatement(BreakStatementTree statementNode) {
       Node node = newNode(Token.BREAK);
-      if (statementNode.getLabel() != null) {
+      if (statementNode.hasLabel()) {
         Node labelName = transformLabelName(statementNode.name);
         node.addChildToBack(labelName);
       }
@@ -1542,7 +1542,7 @@ Node processConditionalExpression(ConditionalExpressionTree exprNode) {
 
     Node processContinueStatement(ContinueStatementTree statementNode) {
       Node node = newNode(Token.CONTINUE);
-      if (statementNode.getLabel() != null) {
+      if (statementNode.hasLabel()) {
         Node labelName = transformLabelName(statementNode.name);
         node.addChildToBack(labelName);
       }

src/com/google/javascript/jscomp/parsing/parser/trees/BreakStatementTree.java

@@ -24,13 +24,13 @@ public class BreakStatementTree extends ParseTree {
 
   public final IdentifierToken name;
 
-  public BreakStatementTree(SourceRange location, IdentifierToken name) {
+  public BreakStatementTree(SourceRange location, @Nullable IdentifierToken name) {
     super(ParseTreeType.BREAK_STATEMENT, location);
 
     this.name = name;
   }
 
-  public @Nullable String getLabel() {
-    return name == null ? null : name.value;
+  public boolean hasLabel() {
+    return name != null;
   }
 }

src/com/google/javascript/jscomp/parsing/parser/trees/ContinueStatementTree.java

@@ -24,13 +24,13 @@ public class ContinueStatementTree extends ParseTree {
 
   public final IdentifierToken name;
 
-  public ContinueStatementTree(SourceRange location, IdentifierToken name) {
+  public ContinueStatementTree(SourceRange location, @Nullable IdentifierToken name) {
     super(ParseTreeType.CONTINUE_STATEMENT, location);
 
     this.name = name;
   }
 
-  public @Nullable String getLabel() {
-    return name == null ? null : name.value;
+  public boolean hasLabel() {
+    return name != null;
   }
 }