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progress with versioning lib

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This commit is contained in:
Joeri Exelmans 2025-06-06 15:30:35 +02:00
parent 3623988f86
commit 618cdf7314
7 changed files with 236 additions and 91 deletions
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14
lib/generics/unify.js
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@ -1,10 +1,10 @@
import { eqType } from "../primitives/type.js";
import { isTypeVar } from "../primitives/typevars.js";
import { prettyT } from "../util/pretty.js";
import { pretty, prettyT } from "../util/pretty.js";
import { indent, zip } from "../util/util.js";
import { compareStrings } from "../compare/primitives.js";
import { getHumanReadableName } from "../primitives/symbol.js";
import { occurring, substitute } from "./generics.js";
import { occurring, recomputeTypeVars, substitute } from "./generics.js";
export const prettyS = (typevar, type) => {
return `${getHumanReadableName(typevar)} ↦ ${prettyT(type)}`;
@ -180,3 +180,13 @@ export const unify = (typeA, typeB) => {
throw e;
}
};
export const assignFn = (functionType, parameterType) => {
const [rFunctionType, rParameterType] = recomputeTypeVars([functionType, parameterType]);
console.log(pretty(rFunctionType));
const rFunctionInType = rFunctionType.params[0](rFunctionType);
const rFunctionOutType = rFunctionType.params[1](rFunctionType);
const subs = unify(rFunctionInType, rParameterType);
const result = substitute(rFunctionOutType, subs);
return recomputeTypeVars([result])[0];
}