If a rethrow is encountered in the catch block, then its handler must be marked that it needs stack…

tests/language/stack_trace_test.dart

Index: tests/language/stack_trace_test.dart
===================================================================
--- tests/language/stack_trace_test.dart	(revision 26933)
+++ tests/language/stack_trace_test.dart	(working copy)
@@ -83,6 +83,63 @@
   }
 }
 
+
+// Test that the full stack trace is generated for rethrow.
+class RethrowStacktraceTest {
+  var config = 0;
+
+  a() {
+    throw "Progy";
+  }
+
+  b() {
+    a();
+  }
+
+  c() {
+    if (config == 0) {
+      try {
+        b();
+      } catch (e) {
+        rethrow;
+      }
+    } else {
+      try {
+        b();
+      } catch (e, s) {
+        rethrow;
+      }
+    }
+  }
+
+  d() {
+    c();
+  }
+
+  testBoth() {
+    int prev_len = -1;
+    for (config = 0; config < 2; config++) {
+      try {
+        d();
+      } catch (e, s) {
+        if (prev_len < 0) {
+          prev_len = s.toString().length;
+        } else {
+          // Check both stacktraces have same length.
+          Expect.equals(prev_len, s.toString().length);

[Ivan Posva, 2013/08/31 00:06:23]

How about just checking that a() is in the stacktrace?

[srdjan, 2013/08/31 00:18:06]

renamed a to issue12940 and checking for it.

+        }
+      }
+    }
+  }
+
+  static testMain() {
+    var test = new RethrowStacktraceTest();
+    test.testBoth();
+  }
+}
+
+
 main() {
   StackTraceTest.testMain();
+  RethrowStacktraceTest.testMain();
 }