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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
var Debug = debug.Debug;
function assertIteratorResult(value, done, result) {
assertEquals({value: value, done: done}, result);
}
function RunTest(formals_and_body, args, value1, value2) {
// A null listener. It isn't important what the listener does.
function listener(event, exec_state, event_data, data) {
}
// Create the generator function outside a debugging context. It will probably
// be lazily compiled.
var gen = (function*(){}).constructor.apply(null, formals_and_body);
// Instantiate the generator object.
var obj = gen.apply(null, args);
// Advance to the first yield.
assertIteratorResult(value1, false, obj.next());
// Enable the debugger, which should force recompilation of the generator
// function and relocation of the suspended generator activation.
Debug.setListener(listener);
// Add a breakpoint on line 3 (the second yield).
var bp = Debug.setBreakPoint(gen, 3);
// Check that the generator resumes and suspends properly.
assertIteratorResult(value2, false, obj.next());
// Disable debugger -- should not force recompilation.
Debug.clearBreakPoint(bp);
Debug.setListener(null);
// Run to completion.
assertIteratorResult(undefined, true, obj.next());
}
function prog(a, b, c) {
return a + ';\n' + 'yield ' + b + ';\n' + 'yield ' + c;
}
// Simple empty local scope.
RunTest([prog('', '1', '2')], [], 1, 2);
RunTest([prog('for (;;) break', '1', '2')], [], 1, 2);
RunTest([prog('while (0) foo()', '1', '2')], [], 1, 2);
RunTest(['a', prog('var x = 3', 'a', 'x')], [1], 1, 3);
RunTest(['a', prog('', '1', '2')], [42], 1, 2);
RunTest(['a', prog('for (;;) break', '1', '2')], [42], 1, 2);
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