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c8c41b385c
What I've implemented here deviates from the current proposal text in the following ways: - I had to introduce a FunctionArrowPrecedence to capture the parsing of -> in expression contexts. - I found it convenient to continue to model the assignment property explicitly. - The comparison and casting operators have historically been non-associative; I have chosen to preserve that, since I don't think this proposal intended to change it. - This uses the precedence group names and higherThan/lowerThan as agreed in discussion.
28 lines
684 B
Swift
28 lines
684 B
Swift
prefix operator ~~~
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postfix operator ^^
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infix operator *- : LowPrecedence
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precedencegroup LowPrecedence {
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associativity: left
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lowerThan: AssignmentPrecedence
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higherThan: LollipopPrecedence
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}
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infix operator -* : LollipopPrecedence
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precedencegroup LollipopPrecedence {
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associativity: right
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higherThan: DoubleLollipopPrecedence
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}
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infix operator *-* : DoubleLollipopPrecedence
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precedencegroup DoubleLollipopPrecedence {
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associativity: none
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assignment: true
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}
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prefix public func ~~~(x: Bool) -> () {}
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postfix public func ^^(x: inout Bool) -> () { x = true }
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public func *-*(x: Bool, y: Bool) -> () {}
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public func *-(x: inout Bool, y: Bool) -> Bool { x = y; return x }
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