Joe Savona 8be5423e3b Type Array.prototype.map/filter ...

We can now type `Array.prototype.{map,filter}`: 

* The callee is ConditionallyMutable because, although the array itself is not 
modified, its items flow into the lambda and may be modified there. 

* The argument is ConditionallyMutable because it accepts both mutable and 
immutable lambdas. Mutate would disallow immutable lambdas (wrong), while Read 
would be incorrect for mutable lambdas since calling them triggers mutation.

2023-05-25 14:50:14 -07:00

compiler

Type Array.prototype.map/filter

2023-05-25 14:50:14 -07:00

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