Make unary builder return Regex type consistently
#503
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Currently, unary regex component builder simply forwards the component's base type. However, this is inconsistent with non-unary builder results. The current behavior may lead to surprising results when the user marks a property with `@RegexComponentBuilder`.
This patch makes `RegexComponentBuilder.buildPartialBlock<R>(first: R)` return a `Regex<R.RegexOutput>` rather than `R` itself.
---
Before:
```swift
// error: cannot convert value of type 'OneOrMore<Substring>' to specified type 'Regex<Substring>'
@RegexComponentBuilder
var r: Regex<Substring> {
OneOrMore("a")
// Adding other components below will make the error go away.
}
struct MyCustomRegex: RegexComponent {
// error: cannot convert value of type 'OneOrMore<Substring>' to specified type 'Regex<Substring>'
var regex: Regex<Substring> {
OneOrMore("a")
}
}
```
After: No errors.
rxwei
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Currently, unary regex component builders simply forward the component's base type. However, this is inconsistent with non-unary builder results. The current behavior may lead to surprising results when the user marks a property with
@RegexComponentBuilder.This patch makes
RegexComponentBuilder.buildPartialBlock<R>(first: R)return aRegex<R.RegexOutput>rather thanRitself.Before:
After: No errors.