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progress with type classes, type inference still very ad-hoc

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This commit is contained in:
Joeri Exelmans 2025-03-20 18:34:58 +01:00
parent 5283be608b
commit c5ac55b0ff
10 changed files with 64 additions and 19 deletions
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23
typeclasses/num.test.js Normal file
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import { assign } from "../generics/generics.js";
import { makeGeneric } from "../generics/generics.js";
import { fnType } from "../metacircular.js";
import { Double, Int } from "../primitives/symbols.js";
import { numDictType } from "./num_type.js";
const square = numDict => x => getMul(numDict)(x)(x);
const squareFnType = makeGeneric(a =>
fnType({
in: numDictType(a),
out: fnType({
in: a,
out: a,
}),
}));
// should be: Int -> Int
console.log(assign(squareFnType, makeGeneric(() => numDictType(Int))));
// should be: Double -> Double
console.log(assign(squareFnType, makeGeneric(() => numDictType(Double))));