| // 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 --harmony-block-scoping |
| // The functions used for testing backtraces. They are at the top to make the |
| // testing of source line/column easier. |
| |
| |
| // Get the Debug object exposed from the debug context global object. |
| 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; |
| |
| |
| // Debug event listener which delegates. |
| 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; |
| } |
| } |
| |
| // Add the debug event listener. |
| Debug.setListener(listener); |
| |
| |
| // Initialize for a new test. |
| function BeginTest(name) { |
| test_name = name; |
| listener_delegate = null; |
| listener_called = false; |
| exception = null; |
| begin_test_count++; |
| } |
| |
| |
| // Check result of a test. |
| function EndTest() { |
| assertTrue(listener_called, "listerner not called for " + test_name); |
| assertNull(exception, test_name); |
| end_test_count++; |
| } |
| |
| |
| // Check that the scope chain contains the expected types of scopes. |
| function CheckScopeChain(scopes, exec_state) { |
| assertEquals(scopes.length, exec_state.frame().scopeCount()); |
| for (var i = 0; i < scopes.length; i++) { |
| var scope = exec_state.frame().scope(i); |
| assertTrue(scope.isScope()); |
| assertEquals(scopes[i], scope.scopeType()); |
| |
| // 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()); |
| } |
| } |
| |
| // 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); |
| if (property_mirror.isUndefined()) { |
| print('property ' + p + ' not found in scope'); |
| } |
| 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--; |
| } |
| // Also ignore synthetic variable from catch block. |
| if (!scope.scopeObject().property('.catch-var').isUndefined()) { |
| scope_size--; |
| } |
| // Skip property with empty name. |
| if (!scope.scopeObject().property('').isUndefined()) { |
| scope_size--; |
| } |
| // Also ignore synthetic variable from block scopes. |
| if (!scope.scopeObject().property('.block').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 block scope in local scope. |
| BeginTest("Local block 1"); |
| |
| function local_block_1() { |
| { |
| debugger; |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Block, |
| debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({}, 0, exec_state); |
| CheckScopeContent({}, 1, exec_state); |
| }; |
| local_block_1(); |
| EndTest(); |
| |
| |
| // Local scope with a parameter. |
| BeginTest("Local 2"); |
| |
| function local_2(a) { |
| { |
| debugger; |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Block, |
| debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({a:1}, 1, exec_state); |
| }; |
| local_2(1); |
| EndTest(); |
| |
| |
| // Local scope with a parameter and a local variable. |
| BeginTest("Local 3"); |
| |
| function local_3(a) { |
| let x = 3; |
| debugger; |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({a:1,x:3}, 0, exec_state); |
| }; |
| local_3(1); |
| EndTest(); |
| |
| |
| // Local scope with parameters and local variables. |
| BeginTest("Local 4"); |
| |
| function local_4(a, b) { |
| let x = 3; |
| let y = 4; |
| debugger; |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({a:1,b:2,x:3,y:4}, 0, exec_state); |
| }; |
| local_4(1, 2); |
| EndTest(); |
| |
| |
| // Single empty with block. |
| BeginTest("With block 1"); |
| |
| function with_block_1() { |
| with({}) { |
| debugger; |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Block, |
| debug.ScopeType.With, |
| debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({}, 0, exec_state); |
| CheckScopeContent({}, 1, exec_state); |
| }; |
| with_block_1(); |
| EndTest(); |
| |
| |
| // Nested empty with blocks. |
| BeginTest("With block 2"); |
| |
| function with_block_2() { |
| with({}) { |
| with({}) { |
| debugger; |
| } |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Block, |
| debug.ScopeType.With, |
| debug.ScopeType.Block, |
| debug.ScopeType.With, |
| debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({}, 0, exec_state); |
| CheckScopeContent({}, 1, exec_state); |
| CheckScopeContent({}, 2, exec_state); |
| CheckScopeContent({}, 3, exec_state); |
| }; |
| with_block_2(); |
| EndTest(); |
| |
| |
| // With block using an in-place object literal. |
| BeginTest("With block 3"); |
| |
| function with_block_3() { |
| with({a:1,b:2}) { |
| debugger; |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Block, |
| debug.ScopeType.With, |
| debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({}, 0, exec_state); |
| CheckScopeContent({a:1,b:2}, 1, exec_state); |
| }; |
| with_block_3(); |
| EndTest(); |
| |
| |
| // Nested with blocks using in-place object literals. |
| BeginTest("With block 4"); |
| |
| function with_block_4() { |
| with({a:1,b:2}) { |
| with({a:2,b:1}) { |
| debugger; |
| } |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Block, |
| debug.ScopeType.With, |
| debug.ScopeType.Block, |
| debug.ScopeType.With, |
| debug.ScopeType.Local, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({a:2,b:1}, 1, exec_state); |
| CheckScopeContent({a:1,b:2}, 3, exec_state); |
| }; |
| with_block_4(); |
| EndTest(); |
| |
| |
| // Simple closure formed by returning an inner function referering to an outer |
| // block local variable and an outer function's parameter. |
| BeginTest("Closure 1"); |
| |
| function closure_1(a) { |
| var x = 2; |
| let y = 3; |
| if (true) { |
| let z = 4; |
| function f() { |
| debugger; |
| return a + x + y + z; |
| }; |
| return f; |
| } |
| } |
| |
| listener_delegate = function(exec_state) { |
| CheckScopeChain([debug.ScopeType.Local, |
| debug.ScopeType.Block, |
| debug.ScopeType.Closure, |
| debug.ScopeType.Global], exec_state); |
| CheckScopeContent({}, 0, exec_state); |
| CheckScopeContent({a:1,x:2,y:3}, 2, exec_state); |
| }; |
| closure_1(1)(); |
| EndTest(); |