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Generate AngleSharp based on included AngleSharp version #1286

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merged 15 commits into from
Nov 23, 2023
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@egil egil commented Nov 20, 2023

Pull request description

This replaces AngleSharpWrappers with similar types that are generated using a source generator project. This allows us to easily upgrade AngleSharp and have new public members supported by the wrappers.

This uses Verify to snapshot test the generated wrappers.

This also upgrades AngleSharp to latest versions. Eventhough AngleSharp.Css I a preview release, it should be safe to use, according to AngleSharp/AngleSharp.Css#150.

The downside is that the generators adds a little to the build time. They should only run one time, as far as I can tell, but we may need to optimize on this.

It also changes the IElementFactory type and makes the wrappers easier to work with, something relevant with #1252.

@egil egil requested a review from linkdotnet November 20, 2023 19:28
@egil egil force-pushed the anglesharp-gen branch 2 times, most recently from 65bab58 to 3494b04 Compare November 20, 2023 20:00
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Samples and or docs probably have to be adapted as well

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egil commented Nov 20, 2023

Samples and or docs probably have to be adapted as well

working on it. docs was not set to build against .net 8.

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egil commented Nov 22, 2023

@linkdotnet improved the generator quite a bit. Want to take a second look at it?

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@linkdotnet improved the generator quite a bit. Want to take a second look at it?

Will check it out tomorrow and fetch the branch to play aroud

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egil commented Nov 22, 2023

There is technically a breaking change. The old wrapper types were public, the new ones are internal. I am tempted to disregard this as I've always considered the wrappers a pubternal thing. Whats your take?

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There is technically a breaking change. The old wrapper types were public, the new ones are internal. I am tempted to disregard this as I've always considered the wrappers a pubternal thing. Whats your take?

Have a similar opinion - while they were public, we never directly exposed them. The code always returned an IElement.

@egil egil requested a review from linkdotnet November 23, 2023 15:17

var elementInterfacetypes = FindElementInterfaces(angleSharpAssembly);

var source = new StringBuilder();
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Small perf optimization: Initialize with a pre-allocated buffer.

Suggested change
var source = new StringBuilder();
var source = new StringBuilder(2000);

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Really nice work - an initial build is "noticeable" slower now - but I am not sure if there as much you can do.

public TElement WrappedElement
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get
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The whole get can be simplfiied to:

		get => element ??= elementFactory.GetElement<TElement>();

@egil egil merged commit d360563 into main Nov 23, 2023
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@egil egil deleted the anglesharp-gen branch November 23, 2023 20:42
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