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v8: handle proxy objects in MakeMirror(), v1
PR-URL: #14343 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,30 @@ | ||
'use strict'; | ||
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require('../common'); | ||
const assert = require('assert'); | ||
const vm = require('vm'); | ||
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const { MakeMirror } = vm.runInDebugContext('Debug'); | ||
const proxy = new Proxy({ x: 1, y: 2 }, { get: Reflect.get }); | ||
const mirror = MakeMirror(proxy, /* transient */ true); | ||
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assert.strictEqual(mirror.protoObject().value(), undefined); | ||
assert.strictEqual(mirror.className(), 'Object'); | ||
assert.strictEqual(mirror.constructorFunction().value(), undefined); | ||
assert.strictEqual(mirror.prototypeObject().value(), undefined); | ||
assert.strictEqual(mirror.hasNamedInterceptor(), false); | ||
assert.strictEqual(mirror.hasIndexedInterceptor(), false); | ||
assert.strictEqual(mirror.referencedBy(1).length, 0); | ||
assert.strictEqual(mirror.toText(), '#<Object>'); | ||
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const propertyNames = mirror.propertyNames(); | ||
const DebugContextArray = propertyNames.constructor; | ||
assert.deepStrictEqual(propertyNames, DebugContextArray.from(['x', 'y'])); | ||
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const properties = mirror.properties(); | ||
assert.strictEqual(properties.length, 2); | ||
// UndefinedMirror because V8 cannot retrieve the values without invoking | ||
// the handler. Could be turned a PropertyMirror but mirror.value() would | ||
// still be an UndefinedMirror. This seems Good Enough for now. | ||
assert(properties[0].isUndefined()); | ||
assert(properties[1].isUndefined()); |