[coroutine stepping]: obtain coroutines running on the current thread without evaluation.

[coroutine-stepping]: Temporarily revert evaluation of computing ids of coroutines running on the current thread. Replaced evaluation with a direct call to the method in DebugProbesImpl. Used helper class as a fast path.

Currently, evaluation does not work for K2.


Co-authored-by: Egor Ushakov <Egor.Ushakov@jetbrains.com>


Merge-request: IJ-MR-126011
Merged-by: Maria Sokolova <maria.sokolova@jetbrains.com>

GitOrigin-RevId: 940fdde35b88950ebe535e37d53fe20a1da5906f

java/java-runtime/intellij.java.rt.iml

@@ -34,5 +34,6 @@
       </library>
     </orderEntry>
     <orderEntry type="library" name="JUnit4" level="project" />
+    <orderEntry type="library" name="kotlinx-coroutines-core" level="project" />
   </component>
 </module>

java/java-runtime/src/com/intellij/rt/debugger/CoroutinesDebugHelper.java

@@ -0,0 +1,23 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package com.intellij.rt.debugger;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@SuppressWarnings({"KotlinInternalInJava", "UnnecessaryFullyQualifiedName"})
+public final class CoroutinesDebugHelper {
+  public static long[] getCoroutinesRunningOnCurrentThread(kotlinx.coroutines.debug.internal.DebugProbesImpl instance) {
+    Thread currentThread = Thread.currentThread();
+    List<Long> coroutinesIds = new ArrayList<>();
+    for (kotlinx.coroutines.debug.internal.DebugCoroutineInfo info : instance.dumpCoroutinesInfo()) {
+      if (info.getLastObservedThread() == currentThread) {
+        coroutinesIds.add(info.getSequenceNumber());
+      }
+    }
+    long[] res = new long[coroutinesIds.size()];
+    for (int i = 0; i < res.length; i++) {
+      res[i] = coroutinesIds.get(i).longValue();
+    }
+    return res;
+  }
+}