Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/test/mjsunit/debug-scopes.js b/test/mjsunit/debug-scopes.js
new file mode 100644
index 0000000..e87cbb7
--- /dev/null
+++ b/test/mjsunit/debug-scopes.js
@@ -0,0 +1,761 @@
+// Copyright 2008 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
+// 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 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 noew 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) {
+ assertEquals(this, scope.scopeObject().value());
+ }
+ }
+
+ // Get the debug command processor.
+ var dcp = exec_state.debugCommandProcessor();
+
+ // Send a scopes request and check the result.
+ var json;
+ 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--;
+ }
+ // Also ignore synthetic variable from catch block.
+ if (!scope.scopeObject().property('.catch-var').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();
+
+ // Send a scope request for information on a single scope and check the
+ // result.
+ 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.
+BeginTest("Local 1");
+
+function local_1() {
+ debugger;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({}, 0, exec_state);
+}
+local_1()
+EndTest();
+
+
+// Local scope with a parameter.
+BeginTest("Local 2");
+
+function local_2(a) {
+ debugger;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1}, 0, exec_state);
+}
+local_2(1)
+EndTest();
+
+
+// Local scope with a parameter and a local variable.
+BeginTest("Local 3");
+
+function local_3(a) {
+ var 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) {
+ var x = 3;
+ var 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();
+
+
+// Empty local scope with use of eval.
+BeginTest("Local 5");
+
+function local_5() {
+ eval('');
+ debugger;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({}, 0, exec_state);
+}
+local_5()
+EndTest();
+
+
+// Local introducing local variable using eval.
+BeginTest("Local 6");
+
+function local_6() {
+ eval('var i = 5');
+ debugger;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({i:5}, 0, exec_state);
+}
+local_6()
+EndTest();
+
+
+// Local scope with parameters, local variables and local variable introduced
+// using eval.
+BeginTest("Local 7");
+
+function local_7(a, b) {
+ var x = 3;
+ var y = 4;
+ eval('var i = 5');
+ eval('var j = 6');
+ debugger;
+}
+
+listener_delegate = 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);
+}
+local_7(1, 2)
+EndTest();
+
+
+// Single empty with block.
+BeginTest("With 1");
+
+function with_1() {
+ with({}) {
+ debugger;
+ }
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.With,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({}, 0, exec_state);
+}
+with_1()
+EndTest();
+
+
+// Nested empty with blocks.
+BeginTest("With 2");
+
+function with_2() {
+ with({}) {
+ with({}) {
+ debugger;
+ }
+ }
+}
+
+listener_delegate = 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);
+}
+with_2()
+EndTest();
+
+
+// With block using an in-place object literal.
+BeginTest("With 3");
+
+function with_3() {
+ with({a:1,b:2}) {
+ debugger;
+ }
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.With,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1,b:2}, 0, exec_state);
+}
+with_3()
+EndTest();
+
+
+// Nested with blocks using in-place object literals.
+BeginTest("With 4");
+
+function with_4() {
+ with({a:1,b:2}) {
+ with({a:2,b:1}) {
+ debugger;
+ }
+ }
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.With,
+ debug.ScopeType.With,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:2,b:1}, 0, exec_state);
+ CheckScopeContent({a:1,b:2}, 1, exec_state);
+}
+with_4()
+EndTest();
+
+
+// Nested with blocks using existing object.
+BeginTest("With 5");
+
+var with_object = {c:3,d:4};
+function with_5() {
+ with(with_object) {
+ with(with_object) {
+ debugger;
+ }
+ }
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.With,
+ debug.ScopeType.With,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent(with_object, 0, exec_state);
+ CheckScopeContent(with_object, 1, exec_state);
+ assertEquals(exec_state.frame().scope(0).scopeObject(), exec_state.frame().scope(1).scopeObject());
+ assertEquals(with_object, exec_state.frame().scope(1).scopeObject().value());
+}
+with_5()
+EndTest();
+
+
+// Simple closure formed by returning an inner function referering the outer
+// functions arguments.
+BeginTest("Closure 1");
+
+function closure_1(a) {
+ function f() {
+ debugger;
+ return a;
+ };
+ return f;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1}, 1, exec_state);
+}
+closure_1(1)()
+EndTest();
+
+
+// Simple closure formed by returning an inner function referering the outer
+// functions arguments. Due to VM optimizations parts of the actual closure is
+// missing from the debugger information.
+BeginTest("Closure 2");
+
+function closure_2(a, b) {
+ var x = a + 2;
+ var y = b + 2;
+ function f() {
+ debugger;
+ return a + x;
+ };
+ return f;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1,x:3}, 1, exec_state);
+}
+closure_2(1, 2)()
+EndTest();
+
+
+// Simple closure formed by returning an inner function referering the outer
+// functions arguments. Using all arguments and locals from the outer function
+// in the inner function makes these part of the debugger information on the
+// closure.
+BeginTest("Closure 3");
+
+function closure_3(a, b) {
+ var x = a + 2;
+ var y = b + 2;
+ function f() {
+ debugger;
+ return a + b + x + y;
+ };
+ return f;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1,b:2,x:3,y:4}, 1, exec_state);
+}
+closure_3(1, 2)()
+EndTest();
+
+
+
+// Simple closure formed by returning an inner function referering the outer
+// functions arguments. Using all arguments and locals from the outer function
+// in the inner function makes these part of the debugger information on the
+// closure. Use the inner function as well...
+BeginTest("Closure 4");
+
+function closure_4(a, b) {
+ var x = a + 2;
+ var y = b + 2;
+ function f() {
+ debugger;
+ if (f) {
+ return a + b + x + y;
+ }
+ };
+ return f;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1,b:2,x:3,y:4,f:function(){}}, 1, exec_state);
+}
+closure_4(1, 2)()
+EndTest();
+
+
+
+// Simple closure formed by returning an inner function referering the outer
+// functions arguments. In the presence of eval all arguments and locals
+// (including the inner function itself) from the outer function becomes part of
+// the debugger infformation on the closure.
+BeginTest("Closure 5");
+
+function closure_5(a, b) {
+ var x = 3;
+ var y = 4;
+ function f() {
+ eval('');
+ debugger;
+ return 1;
+ };
+ return f;
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1,b:2,x:3,y:4,f:function(){}}, 1, exec_state);
+}
+closure_5(1, 2)()
+EndTest();
+
+
+// Two closures. Due to optimizations only the parts actually used are provided
+// through the debugger information.
+BeginTest("Closure 6");
+function closure_6(a, b) {
+ function f(a, b) {
+ var x = 3;
+ var y = 4;
+ return function() {
+ var x = 3;
+ var y = 4;
+ debugger;
+ some_global = a;
+ return f;
+ }
+ }
+ return f(a, b);
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({a:1}, 1, exec_state);
+ CheckScopeContent({f:function(){}}, 2, exec_state);
+}
+closure_6(1, 2)()
+EndTest();
+
+
+// Two closures. In the presence of eval all information is provided as the
+// compiler cannot determine which parts are used.
+BeginTest("Closure 7");
+function closure_7(a, b) {
+ var x = 3;
+ var y = 4;
+ eval('var i = 5');
+ eval('var j = 6');
+ function f(a, b) {
+ var x = 3;
+ var y = 4;
+ eval('var i = 5');
+ eval('var j = 6');
+ return function() {
+ debugger;
+ some_global = a;
+ return f;
+ }
+ }
+ return f(a, b);
+}
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Local,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Closure,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({}, 0, exec_state);
+ CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6}, 1, exec_state);
+ CheckScopeContent({a:1,b:2,x:3,y:4,i:5,j:6,f:function(){}}, 2, exec_state);
+}
+closure_7(1, 2)()
+EndTest();
+
+
+// Test a mixture of scopes.
+BeginTest("The full monty");
+function the_full_monty(a, b) {
+ var x = 3;
+ var y = 4;
+ eval('var i = 5');
+ eval('var j = 6');
+ function f(a, b) {
+ var x = 9;
+ var y = 10;
+ eval('var i = 11');
+ eval('var j = 12');
+ with ({j:13}){
+ return function() {
+ var x = 14;
+ with ({a:15}) {
+ with ({b:16}) {
+ debugger;
+ some_global = a;
+ return f;
+ }
+ }
+ }
+ }
+ }
+ return f(a, b);
+}
+
+listener_delegate = 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);
+}
+the_full_monty(1, 2)()
+EndTest();
+
+// Test global scope.
+BeginTest("Global");
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Global], exec_state);
+}
+debugger;
+EndTest();
+
+
+BeginTest("Catch block 1");
+function catch_block_1() {
+ try {
+ throw 'Exception';
+ } catch (e) {
+ debugger;
+ }
+};
+
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Catch,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({e:'Exception'}, 0, exec_state);
+}
+catch_block_1()
+EndTest();
+
+
+BeginTest("Catch block 2");
+function catch_block_2() {
+ try {
+ throw 'Exception';
+ } catch (e) {
+ with({n:10}) {
+ debugger;
+ }
+ }
+};
+
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.With,
+ debug.ScopeType.Catch,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({n:10}, 0, exec_state);
+ CheckScopeContent({e:'Exception'}, 1, exec_state);
+}
+catch_block_2()
+EndTest();
+
+
+BeginTest("Catch block 3");
+function catch_block_1() {
+ // Do eval to dynamically declare a local variable so that the context's
+ // extension slot is initialized with JSContextExtensionObject.
+ eval("var y = 78;");
+ try {
+ throw 'Exception';
+ } catch (e) {
+ debugger;
+ }
+};
+
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.Catch,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({e:'Exception'}, 0, exec_state);
+ CheckScopeContent({y:78}, 1, exec_state);
+}
+catch_block_1()
+EndTest();
+
+
+BeginTest("Catch block 4");
+function catch_block_2() {
+ // Do eval to dynamically declare a local variable so that the context's
+ // extension slot is initialized with JSContextExtensionObject.
+ eval("var y = 98;");
+ try {
+ throw 'Exception';
+ } catch (e) {
+ with({n:10}) {
+ debugger;
+ }
+ }
+};
+
+listener_delegate = function(exec_state) {
+ CheckScopeChain([debug.ScopeType.With,
+ debug.ScopeType.Catch,
+ debug.ScopeType.Local,
+ debug.ScopeType.Global], exec_state);
+ CheckScopeContent({n:10}, 0, exec_state);
+ CheckScopeContent({e:'Exception'}, 1, exec_state);
+ CheckScopeContent({y:98}, 2, exec_state);
+}
+catch_block_2()
+EndTest();
+
+
+assertEquals(begin_test_count, break_count, 'one or more tests did not enter the debugger');
+assertEquals(begin_test_count, end_test_count, 'one or more tests did not have its result checked');