Enhance type safety in StructuredView

[rubyquaildesign]

This is super quick and I', sure if this is worth adding unless we also add the ability to type check the values rather then just the keys, but I'm working on putting together a typescript plugin which hopefully will allow typescript to access the type definitions of a script at compile/development time so with this change you could ensure that struct member names match those in the shader

[greggman]

Thanks for the PR!

I'm am not sure what this adds. Can you give me an example? I downloaded it locally and tried some stuff but I didn't see the difference (note, I'm not a typescript expert)

If you want something that generates types for typescript, this code might come close with a few tweaks. OTOH, that code might be missing info to fully do it.

[rubyquaildesign]

const myStructDefinition = {
    size: 12,
    fields: {
        'fFieldOne': {
            offset: 0,
            type:{size: 4 },
        },
        'fFieldTwo': {
            offset: 4,
            type:{size: 4},
        },
        'fFieldThree': {
            offset: 8,
            type:{size:4},
        },
    },
} satisfies StructDefinition;

const myView = makeStructuredView(myStructDefinition);
myView.set({
    fFieldOne: 0.5,
    fFieldThree: .2,
    fFieldTwo: 0.7,
    fFieldFour: 12,
});
// Object literal may only specify known properties, and 'fFieldFour' does not exist in type 'Partial<Record<"fFieldOne" | "fFieldTwo" | "fFieldThree", any>>'.

Effectively just provides type information to the fields if the struct definition has field information in it (which could be provided by a typescript plugin like how typescript-plugin-css-modules does for css modules, giving you autocorrect and in editor error handling for struct field names)