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// Copyright 2012 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-scoping
"use strict";
let top_level_let = 255;
// Get the Debug object exposed from the debug context global object.
var Debug = debug.Debug;
function CheckScope(scope_mirror, scope_expectations, expected_scope_type) {
assertEquals(expected_scope_type, scope_mirror.scopeType());
var scope_object = scope_mirror.scopeObject().value();
for (let name in scope_expectations) {
let actual = scope_object[name];
let expected = scope_expectations[name];
assertEquals(expected, actual);
}
}
// A copy of the scope types from mirror-debugger.js.
var ScopeType = { Global: 0,
Local: 1,
With: 2,
Closure: 3,
Catch: 4,
Block: 5,
Script: 6};
var f1 = (function F1(x) {
function F2(y) {
var z = x + y;
{
var w = 5;
var v = "Capybara";
var F3 = function(a, b) {
function F4(p) {
return p + a + b + z + w + v.length;
}
return F4;
}
return F3(4, 5);
}
}
return F2(17);
})(5);
var mirror = Debug.MakeMirror(f1);
assertEquals(5, mirror.scopeCount());
CheckScope(mirror.scope(0), { a: 4, b: 5 }, ScopeType.Closure);
CheckScope(mirror.scope(1), { z: 22, w: 5, v: "Capybara" }, ScopeType.Closure);
CheckScope(mirror.scope(2), { x: 5 }, ScopeType.Closure);
CheckScope(mirror.scope(3), { top_level_let: 255 }, ScopeType.Script);
CheckScope(mirror.scope(4), {}, ScopeType.Global);
var f2 = (function() {
var v1 = 3;
var v2 = 4;
let l0 = 0;
{
var v3 = 5;
let l1 = 6;
let l2 = 7;
{
var v4 = 8;
let l3 = 9;
{
var v5 = "Cat";
let l4 = 11;
var v6 = l4;
return function() {
return l0 + v1 + v3 + l2 + l3 + v6;
};
}
}
}
})();
var mirror = Debug.MakeMirror(f2);
assertEquals(6, mirror.scopeCount());
// Implementation artifact: l4 isn't used in closure, but still it is saved.
CheckScope(mirror.scope(0), { l4: 11 }, ScopeType.Block);
CheckScope(mirror.scope(1), { l3: 9 }, ScopeType.Block);
CheckScope(mirror.scope(2), { l1: 6, l2: 7 }, ScopeType.Block);
CheckScope(mirror.scope(3), { v1:3, l0: 0, v3: 5, v6: 11 }, ScopeType.Closure);
CheckScope(mirror.scope(4), { top_level_let: 255 }, ScopeType.Script);
CheckScope(mirror.scope(5), {}, ScopeType.Global);
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