Revert "Add tests for generator/debugger interaction"

test/mjsunit/harmony/generators-debug-scopes.js

-// Copyright 2014 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --expose-debug-as debug --harmony-generators
-
-var Debug = debug.Debug;
-
-function RunTest(name, formals_and_body, args, handler, continuation) {
-  var handler_called = false;
-  var exception = null;
-
-  function listener(event, exec_state, event_data, data) {
-    try {
-      if (event == Debug.DebugEvent.Break) {
-        handler_called = true;
-        handler(exec_state);
-      }
-    } catch (e) {
-      exception = e;
-    }
-  }
-
-  function run(thunk) {
-    handler_called = false;
-    exception = null;
-
-    var res = thunk();
-    if (continuation)
-      continuation(res);
-
-    assertTrue(handler_called, "listener not called for " + name);
-    assertNull(exception, name + " / " + exception);
-  }
-
-  var gen = (function*(){}).constructor.apply(null, formals_and_body);
-
-  Debug.setListener(listener);
-
-  run(function () { return gen.apply(null, args).next().value });
-
-  Debug.setListener(null);
-}
-
-// Check that two scope are the same.
-function assertScopeMirrorEquals(scope1, scope2) {
-  assertEquals(scope1.scopeType(), scope2.scopeType());
-  assertEquals(scope1.frameIndex(), scope2.frameIndex());
-  assertEquals(scope1.scopeIndex(), scope2.scopeIndex());
-  assertPropertiesEqual(scope1.scopeObject().value(), scope2.scopeObject().value());
-}
-
-function CheckFastAllScopes(scopes, exec_state) {
-  var fast_all_scopes = exec_state.frame().allScopes(true);
-  var length = fast_all_scopes.length;
-  assertTrue(scopes.length >= length);
-  for (var i = 0; i < scopes.length && i < length; i++) {
-    var scope = fast_all_scopes[length - i - 1];
-    assertTrue(scope.isScope());
-    assertEquals(scopes[scopes.length - i - 1], scope.scopeType());
-  }
-}
-
-// Check that the scope chain contains the expected types of scopes.
-function CheckScopeChain(scopes, exec_state) {
-  var all_scopes = exec_state.frame().allScopes();
-  assertEquals(scopes.length, exec_state.frame().scopeCount());
-  assertEquals(scopes.length, all_scopes.length, "FrameMirror.allScopes length");
-  for (var i = 0; i < scopes.length; i++) {
-    var scope = exec_state.frame().scope(i);
-    assertTrue(scope.isScope());
-    assertEquals(scopes[i], scope.scopeType());
-    assertScopeMirrorEquals(all_scopes[i], scope);
-
-    // Check the global object when hitting the global scope.
-    if (scopes[i] == debug.ScopeType.Global) {
-      // Objects don't have same class (one is "global", other is "Object",
-      // so just check the properties directly.
-      assertPropertiesEqual(this, scope.scopeObject().value());
-    }
-  }
-  CheckFastAllScopes(scopes, exec_state);
-
-  // Get the debug command processor.
-  var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
-
-  // Send a scopes request and check the result.
-  var json;
-  var request_json = '{"seq":0,"type":"request","command":"scopes"}';
-  var response_json = dcp.processDebugJSONRequest(request_json);
-  var response = JSON.parse(response_json);
-  assertEquals(scopes.length, response.body.scopes.length);
-  for (var i = 0; i < scopes.length; i++) {
-    assertEquals(i, response.body.scopes[i].index);
-    assertEquals(scopes[i], response.body.scopes[i].type);
-    if (scopes[i] == debug.ScopeType.Local ||
-        scopes[i] == debug.ScopeType.Closure) {
-      assertTrue(response.body.scopes[i].object.ref < 0);
-    } else {
-      assertTrue(response.body.scopes[i].object.ref >= 0);
-    }
-    var found = false;
-    for (var j = 0; j < response.refs.length && !found; j++) {
-      found = response.refs[j].handle == response.body.scopes[i].object.ref;
-    }
-    assertTrue(found, "Scope object " + response.body.scopes[i].object.ref + " not found");
-  }
-}
-
-// Check that the content of the scope is as expected. For functions just check
-// that there is a function.
-function CheckScopeContent(content, number, exec_state) {
-  var scope = exec_state.frame().scope(number);
-  var count = 0;
-  for (var p in content) {
-    var property_mirror = scope.scopeObject().property(p);
-    assertFalse(property_mirror.isUndefined(), 'property ' + p + ' not found in scope');
-    if (typeof(content[p]) === 'function') {
-      assertTrue(property_mirror.value().isFunction());
-    } else {
-      assertEquals(content[p], property_mirror.value().value(), 'property ' + p + ' has unexpected value');
-    }
-    count++;
-  }
-
-  // 'arguments' and might be exposed in the local and closure scope. Just
-  // ignore this.
-  var scope_size = scope.scopeObject().properties().length;
-  if (!scope.scopeObject().property('arguments').isUndefined()) {
-    scope_size--;
-  }
-  // Skip property with empty name.
-  if (!scope.scopeObject().property('').isUndefined()) {
-    scope_size--;
-  }
-
-  if (count != scope_size) {
-    print('Names found in scope:');
-    var names = scope.scopeObject().propertyNames();
-    for (var i = 0; i < names.length; i++) {
-      print(names[i]);
-    }
-  }
-  assertEquals(count, scope_size);
-
-  // Get the debug command processor.
-  var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
-
-  // Send a scope request for information on a single scope and check the
-  // result.
-  var request_json = '{"seq":0,"type":"request","command":"scope","arguments":{"number":';
-  request_json += scope.scopeIndex();
-  request_json += '}}';
-  var response_json = dcp.processDebugJSONRequest(request_json);
-  var response = JSON.parse(response_json);
-  assertEquals(scope.scopeType(), response.body.type);
-  assertEquals(number, response.body.index);
-  if (scope.scopeType() == debug.ScopeType.Local ||
-      scope.scopeType() == debug.ScopeType.Closure) {
-    assertTrue(response.body.object.ref < 0);
-  } else {
-    assertTrue(response.body.object.ref >= 0);
-  }
-  var found = false;
-  for (var i = 0; i < response.refs.length && !found; i++) {
-    found = response.refs[i].handle == response.body.object.ref;
-  }
-  assertTrue(found, "Scope object " + response.body.object.ref + " not found");
-}
-
-
-// Simple empty local scope.
-RunTest("Local 1",
-        ['debugger;'],
-        [],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({}, 0, exec_state);
-        });
-
-// Local scope with a parameter.
-RunTest("Local 2",
-        ['a', 'debugger;'],
-        [1],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({a:1}, 0, exec_state);
-        });
-
-// Local scope with a parameter and a local variable.
-RunTest("Local 3",
-        ['a', 'var x = 3; debugger;'],
-        [1],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({a:1,x:3}, 0, exec_state);
-        });
-
-// Local scope with parameters and local variables.
-RunTest("Local 4",
-        ['a', 'b', 'var x = 3; var y = 4; debugger;'],
-        [1, 2],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({a:1,b:2,x:3,y:4}, 0, exec_state);
-        });
-
-// Empty local scope with use of eval.
-RunTest("Local 5",
-        ['eval(""); debugger;'],
-        [],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({}, 0, exec_state);
-        });
-
-// Local introducing local variable using eval.
-RunTest("Local 6",
-        ['eval("var i = 5"); debugger;'],
-        [],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({i:5}, 0, exec_state);
-        });
-
-// Local scope with parameters, local variables and local variable introduced
-// using eval.
-RunTest("Local 7",
-        ['a', 'b',
-         "var x = 3; var y = 4;\n"
-         + "eval('var i = 5'); eval ('var j = 6');\n"
-         + "debugger;"],
-        [1, 2],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6}, 0, exec_state);
-        });
-
-// Nested empty with blocks.
-RunTest("With",
-        ["with ({}) { with ({}) { debugger; } }"],
-        [],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.With,
-                           debug.ScopeType.With,
-                           debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({}, 0, exec_state);
-          CheckScopeContent({}, 1, exec_state);
-        });
-
-// Simple closure formed by returning an inner function referering the outer
-// functions arguments.
-RunTest("Closure 1",
-        ['a', 'return function() { debugger; return a; }'],
-        [1],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Local,
-                           debug.ScopeType.Closure,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({a:1}, 1, exec_state);
-        },
-       function (result) { result() });
-
-RunTest("The full monty",
-        ['a', 'b',
-         "var x = 3;\n" +
-         "var y = 4;\n" +
-         "eval('var i = 5');\n" +
-         "eval('var j = 6');\n" +
-         "function f(a, b) {\n" +
-         "  var x = 9;\n" +
-         "  var y = 10;\n" +
-         "  eval('var i = 11');\n" +
-         "  eval('var j = 12');\n" +
-         "  with ({j:13}){\n" +
-         "    return function() {\n" +
-         "      var x = 14;\n" +
-         "      with ({a:15}) {\n" +
-         "        with ({b:16}) {\n" +
-         "          debugger;\n" +
-         "          some_global = a;\n" +
-         "          return f;\n" +
-         "        }\n" +
-         "      }\n" +
-         "    };\n" +
-         "  }\n" +
-         "}\n" +
-         "return f(a, b);"],
-        [1, 2],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.With,
-                           debug.ScopeType.With,
-                           debug.ScopeType.Local,
-                           debug.ScopeType.With,
-                           debug.ScopeType.Closure,
-                           debug.ScopeType.Closure,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({b:16}, 0, exec_state);
-          CheckScopeContent({a:15}, 1, exec_state);
-          CheckScopeContent({x:14}, 2, exec_state);
-          CheckScopeContent({j:13}, 3, exec_state);
-          CheckScopeContent({a:1,b:2,x:9,y:10,i:11,j:12}, 4, exec_state);
-          CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6,f:function(){}}, 5, exec_state);
-        },
-        function (result) { result() });
-
-RunTest("Catch block 1",
-        ["try { throw 'Exception'; } catch (e) { debugger; }"],
-        [],
-        function (exec_state) {
-          CheckScopeChain([debug.ScopeType.Catch,
-                           debug.ScopeType.Local,
-                           debug.ScopeType.Global], exec_state);
-          CheckScopeContent({e:'Exception'}, 0, exec_state);
-        });