Revert of [modules] Add partial support for debug-scopes.

test/mjsunit/modules-debug-scopes2.js

-// Copyright 2016 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.
-
-// MODULE
-// Flags: --expose-debug-as debug
-
-
-var Debug = debug.Debug;
-
-var test_name;
-var listener_delegate;
-var listener_called;
-var exception;
-var begin_test_count = 0;
-var end_test_count = 0;
-var break_count = 0;
-
-function listener(event, exec_state, event_data, data) {
-  try {
-    if (event == Debug.DebugEvent.Break) {
-      break_count++;
-      listener_called = true;
-      listener_delegate(exec_state);
-    }
-  } catch (e) {
-    exception = e;
-  }
-}
-
-Debug.setListener(listener);
-
-
-function BeginTest(name) {
-  test_name = name;
-  listener_delegate = null;
-  listener_called = false;
-  exception = null;
-  begin_test_count++;
-}
-
-function EndTest() {
-  assertTrue(listener_called, "listener not called for " + test_name);
-  assertNull(exception, test_name + " / " + exception);
-  end_test_count++;
-}
-
-
-// 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);
-  }
-  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.Script ||
-        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");
-  }
-}
-
-
-function CheckScopeDoesNotHave(properties, number, exec_state) {
-  var scope = exec_state.frame().scope(number);
-  for (var p of properties) {
-    var property_mirror = scope.scopeObject().property(p);
-    assertTrue(property_mirror.isUndefined(), 'property ' + p + ' found in scope');
-  }
-}
-
-
-// Check that the scope contains at least minimum_content. For functions just
-// check that there is a function.
-function CheckScopeContent(minimum_content, number, exec_state) {
-  var scope = exec_state.frame().scope(number);
-  var minimum_count = 0;
-  for (var p in minimum_content) {
-    var property_mirror = scope.scopeObject().property(p);
-    assertFalse(property_mirror.isUndefined(), 'property ' + p + ' not found in scope');
-    if (typeof(minimum_content[p]) === 'function') {
-      assertTrue(property_mirror.value().isFunction());
-    } else {
-      assertEquals(minimum_content[p], property_mirror.value().value(), 'property ' + p + ' has unexpected value');
-    }
-    minimum_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--;
-  }
-  // Ditto for 'this'.
-  if (!scope.scopeObject().property('this').isUndefined()) {
-    scope_size--;
-  }
-  // Temporary variables introduced by the parser have not been materialized.
-  assertTrue(scope.scopeObject().property('').isUndefined());
-
-  if (scope_size < minimum_count) {
-    print('Names found in scope:');
-    var names = scope.scopeObject().propertyNames();
-    for (var i = 0; i < names.length; i++) {
-      print(names[i]);
-    }
-  }
-  assertTrue(scope_size >= minimum_count);
-
-  // 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.Script ||
-      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");
-}
-
-
-////////////////////////////////////////////////////////////////////////////////
-// Actual tests.
-////////////////////////////////////////////////////////////////////////////////
-
-
-BeginTest();
-listener_delegate = function(exec_state) {
-  CheckScopeChain([debug.ScopeType.Module,
-                   debug.ScopeType.Script,
-                   debug.ScopeType.Global], exec_state);
-  CheckScopeContent(
-      {local_var: undefined, exported_var: undefined, imported_var: undefined},
-      0, exec_state);
-  CheckScopeDoesNotHave(
-      ["doesnotexist", "local_let", "exported_let", "imported_let"],
-      0, exec_state);
-};
-debugger;
-EndTest();
-
-let local_let = 1;
-var local_var = 2;
-export let exported_let = 3;
-export var exported_var = 4;
-import {exported_let as imported_let} from "modules-debug-scopes2.js";
-import {exported_var as imported_var} from "modules-debug-scopes2.js";
-
-BeginTest();
-listener_delegate = function(exec_state) {
-  CheckScopeChain([debug.ScopeType.Module,
-                   debug.ScopeType.Script,
-                   debug.ScopeType.Global], exec_state);
-  CheckScopeContent(
-      {local_let: 1, local_var: 2, exported_let: 3, exported_var: 4,
-       imported_let: 3, imported_var: 4}, 0, exec_state);
-};
-debugger;
-EndTest();
-
-local_let += 10;
-local_var += 10;
-exported_let += 10;
-exported_var += 10;
-
-BeginTest();
-listener_delegate = function(exec_state) {
-  CheckScopeChain([debug.ScopeType.Module,
-                   debug.ScopeType.Script,
-                   debug.ScopeType.Global], exec_state);
-  CheckScopeContent(
-      {local_let: 11, local_var: 12, exported_let: 13, exported_var: 14,
-       imported_let: 13, imported_var: 14}, 0, exec_state);
-};
-debugger;
-EndTest();