327 lines
11 KiB
JavaScript
327 lines
11 KiB
JavaScript
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// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --expose-debug-as debug --harmony-generators
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var Debug = debug.Debug;
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function RunTest(name, formals_and_body, args, handler, continuation) {
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var handler_called = false;
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var exception = null;
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function listener(event, exec_state, event_data, data) {
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try {
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if (event == Debug.DebugEvent.Break) {
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handler_called = true;
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handler(exec_state);
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}
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} catch (e) {
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exception = e;
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}
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}
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function run(thunk) {
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handler_called = false;
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exception = null;
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var res = thunk();
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if (continuation)
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continuation(res);
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assertTrue(handler_called, "listener not called for " + name);
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assertNull(exception, name + " / " + exception);
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}
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var fun = Function.apply(null, formals_and_body);
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var gen = (function*(){}).constructor.apply(null, formals_and_body);
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Debug.setListener(listener);
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run(function () { return fun.apply(null, args) });
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run(function () { return gen.apply(null, args).next().value });
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// TODO(wingo): Uncomment after bug 2838 is fixed.
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// Debug.setListener(null);
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}
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// Check that two scope are the same.
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function assertScopeMirrorEquals(scope1, scope2) {
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assertEquals(scope1.scopeType(), scope2.scopeType());
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assertEquals(scope1.frameIndex(), scope2.frameIndex());
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assertEquals(scope1.scopeIndex(), scope2.scopeIndex());
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assertPropertiesEqual(scope1.scopeObject().value(), scope2.scopeObject().value());
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}
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function CheckFastAllScopes(scopes, exec_state) {
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var fast_all_scopes = exec_state.frame().allScopes(true);
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var length = fast_all_scopes.length;
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assertTrue(scopes.length >= length);
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for (var i = 0; i < scopes.length && i < length; i++) {
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var scope = fast_all_scopes[length - i - 1];
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assertTrue(scope.isScope());
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assertEquals(scopes[scopes.length - i - 1], scope.scopeType());
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}
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}
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// Check that the scope chain contains the expected types of scopes.
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function CheckScopeChain(scopes, exec_state) {
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var all_scopes = exec_state.frame().allScopes();
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assertEquals(scopes.length, exec_state.frame().scopeCount());
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assertEquals(scopes.length, all_scopes.length, "FrameMirror.allScopes length");
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for (var i = 0; i < scopes.length; i++) {
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var scope = exec_state.frame().scope(i);
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assertTrue(scope.isScope());
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assertEquals(scopes[i], scope.scopeType());
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assertScopeMirrorEquals(all_scopes[i], scope);
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// Check the global object when hitting the global scope.
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if (scopes[i] == debug.ScopeType.Global) {
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// Objects don't have same class (one is "global", other is "Object",
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// so just check the properties directly.
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assertPropertiesEqual(this, scope.scopeObject().value());
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}
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}
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CheckFastAllScopes(scopes, exec_state);
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// Get the debug command processor.
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var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
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// Send a scopes request and check the result.
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var json;
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var request_json = '{"seq":0,"type":"request","command":"scopes"}';
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var response_json = dcp.processDebugJSONRequest(request_json);
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var response = JSON.parse(response_json);
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assertEquals(scopes.length, response.body.scopes.length);
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for (var i = 0; i < scopes.length; i++) {
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assertEquals(i, response.body.scopes[i].index);
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assertEquals(scopes[i], response.body.scopes[i].type);
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if (scopes[i] == debug.ScopeType.Local ||
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scopes[i] == debug.ScopeType.Closure) {
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assertTrue(response.body.scopes[i].object.ref < 0);
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} else {
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assertTrue(response.body.scopes[i].object.ref >= 0);
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}
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var found = false;
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for (var j = 0; j < response.refs.length && !found; j++) {
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found = response.refs[j].handle == response.body.scopes[i].object.ref;
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}
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assertTrue(found, "Scope object " + response.body.scopes[i].object.ref + " not found");
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}
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}
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// Check that the content of the scope is as expected. For functions just check
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// that there is a function.
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function CheckScopeContent(content, number, exec_state) {
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var scope = exec_state.frame().scope(number);
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var count = 0;
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for (var p in content) {
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var property_mirror = scope.scopeObject().property(p);
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assertFalse(property_mirror.isUndefined(), 'property ' + p + ' not found in scope');
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if (typeof(content[p]) === 'function') {
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assertTrue(property_mirror.value().isFunction());
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} else {
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assertEquals(content[p], property_mirror.value().value(), 'property ' + p + ' has unexpected value');
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}
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count++;
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}
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// 'arguments' and might be exposed in the local and closure scope. Just
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// ignore this.
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var scope_size = scope.scopeObject().properties().length;
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if (!scope.scopeObject().property('arguments').isUndefined()) {
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scope_size--;
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}
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// Skip property with empty name.
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if (!scope.scopeObject().property('').isUndefined()) {
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scope_size--;
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}
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if (count != scope_size) {
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print('Names found in scope:');
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var names = scope.scopeObject().propertyNames();
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for (var i = 0; i < names.length; i++) {
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print(names[i]);
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}
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}
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assertEquals(count, scope_size);
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// Get the debug command processor.
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var dcp = exec_state.debugCommandProcessor("unspecified_running_state");
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// Send a scope request for information on a single scope and check the
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// result.
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var request_json = '{"seq":0,"type":"request","command":"scope","arguments":{"number":';
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request_json += scope.scopeIndex();
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request_json += '}}';
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var response_json = dcp.processDebugJSONRequest(request_json);
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var response = JSON.parse(response_json);
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assertEquals(scope.scopeType(), response.body.type);
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assertEquals(number, response.body.index);
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if (scope.scopeType() == debug.ScopeType.Local ||
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scope.scopeType() == debug.ScopeType.Closure) {
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assertTrue(response.body.object.ref < 0);
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} else {
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assertTrue(response.body.object.ref >= 0);
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}
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var found = false;
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for (var i = 0; i < response.refs.length && !found; i++) {
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found = response.refs[i].handle == response.body.object.ref;
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}
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assertTrue(found, "Scope object " + response.body.object.ref + " not found");
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}
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// Simple empty local scope.
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RunTest("Local 1",
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['debugger;'],
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[],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({}, 0, exec_state);
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});
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// Local scope with a parameter.
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RunTest("Local 2",
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['a', 'debugger;'],
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[1],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({a:1}, 0, exec_state);
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});
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// Local scope with a parameter and a local variable.
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RunTest("Local 3",
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['a', 'var x = 3; debugger;'],
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[1],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({a:1,x:3}, 0, exec_state);
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});
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// Local scope with parameters and local variables.
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RunTest("Local 4",
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['a', 'b', 'var x = 3; var y = 4; debugger;'],
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[1, 2],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({a:1,b:2,x:3,y:4}, 0, exec_state);
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});
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// Empty local scope with use of eval.
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RunTest("Local 5",
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['eval(""); debugger;'],
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[],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({}, 0, exec_state);
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});
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// Local introducing local variable using eval.
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RunTest("Local 6",
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['eval("var i = 5"); debugger;'],
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[],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({i:5}, 0, exec_state);
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});
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// Local scope with parameters, local variables and local variable introduced
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// using eval.
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RunTest("Local 7",
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['a', 'b',
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"var x = 3; var y = 4;\n"
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+ "eval('var i = 5'); eval ('var j = 6');\n"
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+ "debugger;"],
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[1, 2],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6}, 0, exec_state);
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});
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// Nested empty with blocks.
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RunTest("With",
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["with ({}) { with ({}) { debugger; } }"],
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[],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.With,
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debug.ScopeType.With,
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debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({}, 0, exec_state);
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CheckScopeContent({}, 1, exec_state);
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});
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// Simple closure formed by returning an inner function referering the outer
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// functions arguments.
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RunTest("Closure 1",
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['a', 'return function() { debugger; return a; }'],
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[1],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Local,
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debug.ScopeType.Closure,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({a:1}, 1, exec_state);
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},
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function (result) { result() });
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RunTest("The full monty",
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['a', 'b',
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"var x = 3;\n" +
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"var y = 4;\n" +
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"eval('var i = 5');\n" +
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"eval('var j = 6');\n" +
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"function f(a, b) {\n" +
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" var x = 9;\n" +
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" var y = 10;\n" +
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" eval('var i = 11');\n" +
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" eval('var j = 12');\n" +
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" with ({j:13}){\n" +
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" return function() {\n" +
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" var x = 14;\n" +
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" with ({a:15}) {\n" +
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" with ({b:16}) {\n" +
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" debugger;\n" +
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" some_global = a;\n" +
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" return f;\n" +
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" }\n" +
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" }\n" +
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" };\n" +
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" }\n" +
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"}\n" +
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"return f(a, b);"],
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[1, 2],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.With,
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debug.ScopeType.With,
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debug.ScopeType.Local,
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debug.ScopeType.With,
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debug.ScopeType.Closure,
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debug.ScopeType.Closure,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({b:16}, 0, exec_state);
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CheckScopeContent({a:15}, 1, exec_state);
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CheckScopeContent({x:14}, 2, exec_state);
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CheckScopeContent({j:13}, 3, exec_state);
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CheckScopeContent({a:1,b:2,x:9,y:10,i:11,j:12}, 4, exec_state);
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CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6,f:function(){}}, 5, exec_state);
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},
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function (result) { result() });
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RunTest("Catch block 1",
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["try { throw 'Exception'; } catch (e) { debugger; }"],
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[],
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function (exec_state) {
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CheckScopeChain([debug.ScopeType.Catch,
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debug.ScopeType.Local,
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debug.ScopeType.Global], exec_state);
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CheckScopeContent({e:'Exception'}, 0, exec_state);
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});
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