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var common = require('../common');
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var assert = require('assert');
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var spawnSync = require('child_process').spawnSync;
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var v8 = require('v8');
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// --harmony_classes implies --harmony_scoping; ensure that scoping still works
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// when classes are disabled.
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assert.throws(function() { eval('"use strict"; class C {}'); }, SyntaxError);
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eval('"use strict"; let x = 42'); // Should not throw.
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eval('"use strict"; const y = 42'); // Should not throw.
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v8.setFlagsFromString('--harmony_classes');
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eval('"use strict"; class C {}'); // Should not throw.
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eval('"use strict"; let x = 42'); // Should not throw.
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eval('"use strict"; const y = 42'); // Should not throw.
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// Verify that the --harmony_classes flag unlocks classes again.
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var args = ['--harmony_classes', '--use_strict', '-p', 'class C {}'];
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var cp = spawnSync(process.execPath, args);
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assert.equal(cp.status, 0);
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assert.equal(cp.stdout.toString('utf8').trim(), '[Function: C]');
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// Now do the same for --harmony_object_literals.
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assert.throws(function() { eval('({ f() {} })'); }, SyntaxError);
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v8.setFlagsFromString('--harmony_object_literals');
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eval('({ f() {} })');
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var args = ['--harmony_object_literals', '-p', '({ f() {} })'];
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var cp = spawnSync(process.execPath, args);
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assert.equal(cp.status, 0);
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assert.equal(cp.stdout.toString('utf8').trim(), '{ f: [Function: f] }');
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