[debugger] Further stepping support in test wrapper

test/mjsunit/debug-stepout-scope-part4.js

-// Copyright 2011 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Flags: --expose-debug-as debug
-
-// Check that the ScopeIterator can properly recreate the scope at
-// every point when stepping through functions.
-
-var Debug = debug.Debug;
-
-function listener(event, exec_state, event_data, data) {
-  if (event == Debug.DebugEvent.Break) {
-    // Access scope details.
-    var scope_count = exec_state.frame().scopeCount();
-    for (var i = 0; i < scope_count; i++) {
-      var scope = exec_state.frame().scope(i);
-      // assertTrue(scope.isScope());
-      scope.scopeType();
-      scope.scopeObject();
-    }
-
-    // Do steps until we reach the global scope again.
-    exec_state.prepareStep(Debug.StepAction.StepIn);
-  }
-}
-
-Debug.setListener(listener);
-
-var q = 42;
-var prefixes = [
-  "debugger; ",
-  "if (false) { try { throw 0; } catch(x) { this.x = x; } }; debugger; " ];
-var bodies = [ "1",
-               "1 ",
-               "1;",
-               "1; ",
-               "q",
-               "q ",
-               "q;",
-               "q; ",
-               "try { throw 'stuff' } catch (e) { e = 1; }",
-               "try { throw 'stuff' } catch (e) { e = 1; } ",
-               "try { throw 'stuff' } catch (e) { e = 1; };",
-               "try { throw 'stuff' } catch (e) { e = 1; }; " ];
-
-
-// Test global eval and function constructor.
-for (var i = 0; i < prefixes.length; ++i) {
-  var pre = prefixes[i];
-  for (var j = 0; j < bodies.length; ++j) {
-    var body = bodies[j];
-    eval(pre + body);
-  }
-}