| // 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 --ignition-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 fun = Function.apply(null, formals_and_body); |
| var gen = (function*(){}).constructor.apply(null, formals_and_body); |
| |
| Debug.setListener(listener); |
| |
| run(function () { return fun.apply(null, args) }); |
| run(function () { return gen.apply(null, args).next().value }); |
| |
| // TODO(wingo): Uncomment after bug 2838 is fixed. |
| // 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.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"); |
| } |
| } |
| |
| // 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.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"); |
| } |
| |
| |
| // Simple empty local scope. |
| RunTest("Local 1", |
| ['debugger;'], |
| [], |
| function (exec_state) { |
| CheckScopeChain([debug.ScopeType.Local, |
| debug.ScopeType.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| 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.Script, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({e:'Exception'}, 0, exec_state); |
| }); |