fix(language-core): defineModel for generic component types

[serkodev]

Fix #4972

[pkg-pr-new]

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vue-component-meta

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vue-component-type-helpers

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@vue/language-core

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@vue/language-plugin-pug

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@vue/language-server

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@vue/language-service

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vue-tsc

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@vue/typescript-plugin

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commit: 874dc9d

[KazariEX]

We cannot add Record<string, ...> to the props of a generic component, as this will prevent the component from being controlled by the client's checkUnknownProps.

[serkodev]

Thanks for the advice. Is there any feature demo / more info about checkUnknownProps ?
I tried defineProps<{ x: unknown }>() with checkUnknownProps on / off and seems get the same result.

[KazariEX]

checkUnknownProps checks for props that do not exist on the component.

[KazariEX]

The type generated from a generic component is a generic function. This means that when a user uses a generic component type processed by vue-tsc, we cannot modify the component's props (because it would break the generic). Therefore, even if checkUnknownProps is enabled on the user's end, the component's props will still contain Record<string, unknown>.