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Adjust objectPattern to allow Function() #3496

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merged 2 commits into from
Dec 13, 2023
Merged

Adjust objectPattern to allow Function() #3496

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e1f4653
Adjust objectPattern to allow Function()
eernstg Dec 6, 2023
88c86ad
Allow import prefix
eernstg Dec 6, 2023
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11 changes: 9 additions & 2 deletions accepted/3.0/patterns/feature-specification.md
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Expand Up @@ -740,7 +740,9 @@ pattern with the field name omitted (see name inference below).
### Object pattern

```
objectPattern ::= typeName typeArguments? '(' patternFields? ')'
objectPattern ::=
(typeName typeArguments? | (typeIdentifier '.')? 'Function')
'(' patternFields? ')'
```

An object pattern matches values of a given named type and then extracts values
Expand Down Expand Up @@ -1924,7 +1926,7 @@ To type check a pattern `p` being matched against a value of type `M`:
performed. Otherwise *(when `M` is not `dynamic` or `Never`)*:

1. A compile-time error occurs if `M` does not have an operator `op`,
and there is no available and applicable extension operator `op`.
and there is no available and applicable extension operator `op`.
Let `A` be the type of the formal parameter of the given operator
declaration, and let `R` be the return type.

Expand Down Expand Up @@ -3550,6 +3552,11 @@ Here is one way it could be broken down into separate pieces:

## Changelog

### 2.34 (after shipping)

- Adjust `objectPattern` to allow `Function(...)`, which is already
the implemented behavior (#3468).

### 2.33 (after shipping)

- Tweak caching of trailing list elements after a rest element. The specified
Expand Down