v8/test/mjsunit/debug-scopes.js
cbruni 1f9863aa18 Reland of Preparse inner functions (new try) (patchset #1 id:1 of https://codereview.chromium.org/2373443003/ )
Reason for revert:
Stability thief found, relanding speculative reverts.

Original issue's description:
> Revert of Preparse inner functions (new try) (patchset #21 id:420001 of https://codereview.chromium.org/2352593002/ )
>
> Reason for revert:
> We currently have some stability issues on Canary. Let's reland this after we verified that we "fixed" Canary again.
>
> Original issue's description:
> > Preparse inner functions (new try)
> >
> > This is an overly pessimistic approach where PreParser only keeps
> > track of unresolved variables, but doesn't declare anything. This
> > will result in context-allocating variables in the outer function
> > unnecessarily, if the variable names clash with variable names
> > used by the inner function (even if the variables are not the
> > same). However, we have been unable to prove that this approach
> > wouldn't be good enough for the practical purposes.
> >
> > Fixes after the previous try ( https://codereview.chromium.org/2322243002/ ):
> > Keep the context-allocation decision stable when compiling fully eagerly.
> >
> > Tests which exercise this functionality:
> > mjsunit/fixed-context-shapes-when-recompiling.js
> >
> > Design document (chromium):
> >
> > https://docs.google.com/a/chromium.org/document/d/1rRv5JJZ0JpOZAZN2CSUwZPFJiBAdRnTiSYhazseNHFg/edit?usp=sharing
> >
> > BUG=
> >
> > Committed: https://crrev.com/7c73cf32c60484cdf37c84f1d61b4640e87068d7
> > Cr-Commit-Position: refs/heads/master@{#39719}
>
> TBR=verwaest@chromium.org,adamk@chromium.org,marja@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/1e6296b2a7cfc307fd9e722e619f42965da4a267
> Cr-Commit-Position: refs/heads/master@{#39730}

TBR=verwaest@chromium.org,adamk@chromium.org,marja@chromium.org,hablich@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2377513006
Cr-Commit-Position: refs/heads/master@{#39755}
2016-09-27 09:48:34 +00:00

1288 lines
37 KiB
JavaScript

// 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 --allow-natives-syntax
// 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.
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;
// 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 + " / " + 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);
// 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 scope chain contains the expected names of scopes.
function CheckScopeChainNames(names, exec_state) {
var all_scopes = exec_state.frame().allScopes();
assertEquals(names.length, all_scopes.length, "FrameMirror.allScopes length");
for (var i = 0; i < names.length; i++) {
var scope = exec_state.frame().scope(i);
assertTrue(scope.isScope());
assertEquals(names[i], scope.details().name())
}
}
// 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");
}
// Check that the scopes have positions as expected.
function CheckScopeChainPositions(positions, exec_state) {
var all_scopes = exec_state.frame().allScopes();
assertEquals(positions.length, all_scopes.length, "FrameMirror.allScopes length");
for (var i = 0; i < positions.length; i++) {
var scope = exec_state.frame().scope(i);
assertTrue(scope.isScope());
var position = positions[i];
if (!position)
continue;
assertEquals(position.start, scope.details().startPosition())
assertEquals(position.end, scope.details().endPosition())
}
}
// Simple empty local scope.
BeginTest("Local 1");
function local_1() {
debugger;
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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.Script,
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();
// Nested with blocks using existing object in global code.
BeginTest("With 6");
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.With,
debug.ScopeType.With,
debug.ScopeType.Script,
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());
};
var with_object = {c:3,d:4};
with(with_object) {
with(with_object) {
debugger;
}
}
EndTest();
// With block in function that is marked for optimization while being executed.
BeginTest("With 7");
function with_7() {
with({}) {
%OptimizeFunctionOnNextCall(with_7);
debugger;
}
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.With,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({}, 0, exec_state);
};
with_7();
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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({a:1}, 1, exec_state);
CheckScopeChainNames(["f", "closure_1", undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({a:1,x:3}, 1, exec_state);
CheckScopeChainNames(["f", "closure_2", undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({a:1,b:2,x:3,y:4}, 1, exec_state);
CheckScopeChainNames(["f", "closure_3", undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({a:1,b:2,x:3,y:4,f:function(){}}, 1, exec_state);
CheckScopeChainNames(["f", "closure_4", undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({a:1,b:2,x:3,y:4,f:function(){}}, 1, exec_state);
CheckScopeChainNames(["f", "closure_5", undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({a:1}, 1, exec_state);
CheckScopeContent({f:function(){}}, 2, exec_state);
CheckScopeChainNames([undefined, "f", "closure_6", undefined, undefined], 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.Script,
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);
CheckScopeChainNames([undefined, "f", "closure_7", undefined, undefined], exec_state)
};
closure_7(1, 2)();
EndTest();
// Closure that may be optimized out.
BeginTest("Closure 8");
function closure_8() {
(function inner(x) {
debugger;
})(2);
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({x: 2}, 0, exec_state);
CheckScopeChainNames(["inner", undefined, undefined], exec_state)
};
closure_8();
EndTest();
BeginTest("Closure 9");
function closure_9() {
eval("var y = 1;");
eval("var z = 1;");
(function inner(x) {
y++;
z++;
debugger;
})(2);
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.Closure,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainNames(["inner", "closure_9", undefined, undefined], exec_state)
};
closure_9();
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.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);
CheckScopeChainNames([undefined, undefined, undefined, "f", "f", "the_full_monty", undefined, undefined], exec_state)
};
the_full_monty(1, 2)();
EndTest();
BeginTest("Closure inside With 1");
function closure_in_with_1() {
with({x:1}) {
(function inner(x) {
debugger;
})(2);
}
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.With,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({x: 2}, 0, exec_state);
CheckScopeContent({x: 1}, 1, exec_state);
};
closure_in_with_1();
EndTest();
BeginTest("Closure inside With 2");
function closure_in_with_2() {
with({x:1}) {
(function inner(x) {
with({x:3}) {
debugger;
}
})(2);
}
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.With,
debug.ScopeType.Local,
debug.ScopeType.With,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({x: 3}, 0, exec_state);
CheckScopeContent({x: 2}, 1, exec_state);
CheckScopeContent({x: 1}, 2, exec_state);
CheckScopeChainNames(["inner", "inner", "closure_in_with_2", undefined, undefined], exec_state)
};
closure_in_with_2();
EndTest();
BeginTest("Closure inside With 3");
function createClosure(a) {
var b = a + 1;
return function closure() {
var c = b;
(function inner(x) {
with({x:c}) {
debugger;
}
})(2);
};
}
function closure_in_with_3() {
var f = createClosure(0);
f();
}
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.With,
debug.ScopeType.Local,
debug.ScopeType.Closure,
debug.ScopeType.Closure,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainNames(["inner", "inner", "closure", "createClosure", undefined, undefined], exec_state)
}
closure_in_with_3();
EndTest();
BeginTest("Closure inside With 4");
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.With,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({x: 2}, 0, exec_state);
CheckScopeContent({x: 1}, 1, exec_state);
CheckScopeChainNames([undefined, undefined, undefined, undefined], exec_state)
};
with({x:1}) {
(function(x) {
debugger;
})(2);
}
EndTest();
// Test global scope.
BeginTest("Global");
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Script, debug.ScopeType.Global], exec_state);
CheckScopeChainNames([undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({e:'Exception'}, 0, exec_state);
CheckScopeChainNames(["catch_block_1", "catch_block_1", undefined, undefined], 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({n:10}, 0, exec_state);
CheckScopeContent({e:'Exception'}, 1, exec_state);
CheckScopeChainNames(["catch_block_2", "catch_block_2", "catch_block_2", undefined, undefined], exec_state)
};
catch_block_2();
EndTest();
BeginTest("Catch block 3");
function catch_block_3() {
// 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({e:'Exception'}, 0, exec_state);
CheckScopeContent({y:78}, 1, exec_state);
CheckScopeChainNames(["catch_block_3", "catch_block_3", undefined, undefined], exec_state)
};
catch_block_3();
EndTest();
BeginTest("Catch block 4");
function catch_block_4() {
// 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.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({n:10}, 0, exec_state);
CheckScopeContent({e:'Exception'}, 1, exec_state);
CheckScopeContent({y:98}, 2, exec_state);
CheckScopeChainNames(["catch_block_4", "catch_block_4", "catch_block_4", undefined, undefined], exec_state)
};
catch_block_4();
EndTest();
// Test catch in global scope.
BeginTest("Catch block 5");
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Catch,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({e:'Exception'}, 0, exec_state);
CheckScopeChainNames([undefined, undefined, undefined], exec_state)
};
try {
throw 'Exception';
} catch (e) {
debugger;
}
EndTest();
// Closure inside catch in global code.
BeginTest("Catch block 6");
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.Catch,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({x: 2}, 0, exec_state);
CheckScopeContent({e:'Exception'}, 1, exec_state);
CheckScopeChainNames([undefined, undefined, undefined, undefined], exec_state)
};
try {
throw 'Exception';
} catch (e) {
(function(x) {
debugger;
})(2);
}
EndTest();
// Catch block in function that is marked for optimization while being executed.
BeginTest("Catch block 7");
function catch_block_7() {
%OptimizeFunctionOnNextCall(catch_block_7);
try {
throw 'Exception';
} catch (e) {
debugger;
}
};
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Catch,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({e:'Exception'}, 0, exec_state);
CheckScopeChainNames(["catch_block_7", "catch_block_7", undefined, undefined], exec_state)
};
catch_block_7();
EndTest();
BeginTest("Classes and methods 1");
listener_delegate = function(exec_state) {
"use strict"
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeContent({}, 1, exec_state);
CheckScopeChainNames(["m", undefined, undefined], exec_state)
};
(function() {
"use strict";
class C1 {
m() {
debugger;
}
}
new C1().m();
})();
EndTest();
BeginTest("Scope positions");
var code1 = "function f() { \n" +
" var a = 1; \n" +
" function b() { \n" +
" debugger; \n" +
" return a + 1; \n" +
" } \n" +
" b(); \n" +
"} \n" +
"f(); \n";
listener_delegate = function(exec_state) {
CheckScopeChainPositions([{start: 58, end: 118}, {start: 10, end: 162}, {}, {}], exec_state);
}
eval(code1);
EndTest();
function catch_block_2() {
try {
throw 'Exception';
} catch (e) {
with({n:10}) {
debugger;
}
}
};
BeginTest("Scope positions in catch and 'with' statement");
var code2 = "function catch_block() { \n" +
" try { \n" +
" throw 'Exception'; \n" +
" } catch (e) { \n" +
" with({n : 10}) { \n" +
" debugger; \n" +
" } \n" +
" } \n" +
"} \n" +
"catch_block(); \n";
listener_delegate = function(exec_state) {
CheckScopeChainPositions([{start: 131, end: 173}, {start: 94, end: 199}, {start: 20, end: 225}, {}, {}], exec_state);
}
eval(code2);
EndTest();
BeginTest("Scope positions in for statement");
var code3 = "function for_statement() { \n" +
" for (let i = 0; i < 1; i++) { \n" +
" debugger; \n" +
" } \n" +
"} \n" +
"for_statement(); \n";
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Block,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainPositions([{start: 52, end: 111}, {start: 22, end: 145}, {}, {}], exec_state);
}
eval(code3);
EndTest();
BeginTest("Scope positions in for statement with lexical block");
var code4 = "function for_statement() { \n" +
" for (let i = 0; i < 1; i++) { \n" +
" let j; \n" +
" debugger; \n" +
" } \n" +
"} \n" +
"for_statement(); \n";
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Block,
debug.ScopeType.Block,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainPositions([{start: 66, end: 147}, {start: 52, end: 147}, {start: 22, end: 181}, {}, {}], exec_state);
}
eval(code4);
EndTest();
BeginTest("Scope positions in lexical for each statement");
var code5 = "function for_each_statement() { \n" +
" for (let i of [0]) { \n" +
" debugger; \n" +
" } \n" +
"} \n" +
"for_each_statement(); \n";
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Block,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainPositions([{start: 55, end: 111}, {start: 27, end: 145}, {}, {}], exec_state);
}
eval(code5);
EndTest();
BeginTest("Scope positions in lexical for each statement with lexical block");
var code6 = "function for_each_statement() { \n" +
" for (let i of [0]) { \n" +
" let j; \n" +
" debugger; \n" +
" } \n" +
"} \n" +
"for_each_statement(); \n";
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Block,
debug.ScopeType.Block,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainPositions([{start: 57, end: 147}, {start: 55, end: 147}, {start: 27, end: 181}, {}, {}], exec_state);
}
eval(code6);
EndTest();
BeginTest("Scope positions in non-lexical for each statement");
var code7 = "function for_each_statement() { \n" +
" var i; \n" +
" for (i of [0]) { \n" +
" debugger; \n" +
" } \n" +
"} \n" +
"for_each_statement(); \n";
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainPositions([{start: 27, end: 181}, {}, {}], exec_state);
}
eval(code7);
EndTest();
BeginTest("Scope positions in non-lexical for each statement with lexical block");
var code8 = "function for_each_statement() { \n" +
" var i; \n" +
" for (i of [0]) { \n" +
" let j; \n" +
" debugger; \n" +
" } \n" +
"} \n" +
"for_each_statement(); \n";
listener_delegate = function(exec_state) {
CheckScopeChain([debug.ScopeType.Block,
debug.ScopeType.Local,
debug.ScopeType.Script,
debug.ScopeType.Global], exec_state);
CheckScopeChainPositions([{start: 89, end: 183}, {start: 27, end: 217}, {}, {}], exec_state);
}
eval(code8);
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');