[NFC] BasicBlockWorklist: add ::empty.

nate-chandler · nate-chandler · commit 990f0eeb8317 · 2024-12-18T11:25:42.000-08:00
Enable clients to check whether the worklist has anything in it without
popping a block to find out.
diff --git a/include/swift/SIL/BasicBlockDatastructures.h b/include/swift/SIL/BasicBlockDatastructures.h
@@ -83,6 +83,9 @@ class BasicBlockWorklist {
     push(initialBlock);
   }
 
+  /// Whether there are any remaining blocks to process.
+  bool empty() { return worklist.empty(); }
+
   /// Pops the last added element from the worklist or returns null, if the
   /// worklist is empty.
   SILBasicBlock *pop() {

Original file line number	Diff line number	Diff line change
`@@ -83,6 +83,9 @@ class BasicBlockWorklist {`
`83`	`83`	`push(initialBlock);`
`84`	`84`	`}`
`85`	`85`
	`86`	`+ /// Whether there are any remaining blocks to process.`
	`87`	`+ bool empty() { return worklist.empty(); }`
	`88`	`+`
`86`	`89`	`/// Pops the last added element from the worklist or returns null, if the`
`87`	`90`	`/// worklist is empty.`
`88`	`91`	`SILBasicBlock *pop() {`