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Represent ulong as BigInt #176

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kfish610 opened this issue Apr 20, 2020 · 2 comments
Closed

Represent ulong as BigInt #176

kfish610 opened this issue Apr 20, 2020 · 2 comments
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@ClearScriptLib
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enhancement fixed

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@kfish610
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I have a ulong property in a class that I am exposing to the ClearScript engine. The only issue is that rather than being capped at ulong.MaxValue, it is being capped at the js number max value, 2^53 - 1. I'm wondering if there's some way to represent the property as a BigInt in js, or to allow it to be set to a BigInt, as right now it gives an Error: Invalid property assignment if I attempt to.
@ClearScriptLib ClearScriptLib self-assigned this Apr 20, 2020
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Hi @kfish610,

ClearScript has no support for BigInt at the moment. Even worse, since BigInt is a primitive rather than an object type, there's no way to marshal it to the host.

The only thing you can do right now is expose a property that returns the value as a string, and parse it into a BigInt in script code. Sorry!

We'll add BigInt support in the next ClearScript release.

Thanks!

ClearScriptLib added a commit that referenced this issue May 29, 2020
@ClearScriptLib
Version 6.0.2: Fixed error handling in JavaScriptExtensions.ToPromise…
ee1a5e3 
…; added JavaScriptExtensions.ToTask (GitHub Issue #182); added DocumentLoader.MaxCacheSize and DocumentCategory.MaxCacheSize; added code to break event connections on engine disposal (GitHub Issue #183); improved ES6 module support, fixing cycle crash (GitHub Issue #181); added DynamicHostObject (GitHub Issue #180); added BigInt / BigInteger support for V8 (GitHub Issue #176); hardened Assembly.Load call in V8Proxy.cs (GitHub Issue #175); improved V8Update environment isolation to fix some V8 build issues (GitHub Issue #185); updated API documentation. Tested with V8 8.3.110.9.
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Version 6.0.2 adds BigInt / BigInteger support.

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@ClearScriptLib @kfish610