File: recursiveTypeRelations.js

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//// [recursiveTypeRelations.ts]
// Repro from #14896

type Attributes<Keys extends keyof any> = {
    [Key in Keys]: string;
}

class Query<A extends Attributes<keyof A>> {
    multiply<B extends Attributes<keyof B>>(x: B): Query<A & B>;
}

// Repro from #14940

type ClassName<S> = keyof S;
type ClassNameMap<S> = { [K in keyof S]?: boolean }
type ClassNameObjectMap<S> = object & ClassNameMap<S>;
type ClassNameArg<S> = ClassName<S> | ClassNameObjectMap<S>;

export function css<S extends { [K in keyof S]: string }>(styles: S, ...classNames: ClassNameArg<S>[]): string {
  const args = classNames.map(arg => {
    if (arg == null) {
      return null;
    }
    if (typeof arg == "string") {
      return styles[arg];
    }
    if (typeof arg == "object") {
      return Object.keys(arg).reduce<ClassNameObject>((obj: ClassNameObject, key: keyof S) => {
        const exportedClassName = styles[key];
        obj[exportedClassName] = (arg as ClassNameMap<S>)[key]; 
        return obj;
      }, {});
    }
  });
  return "";
}


//// [recursiveTypeRelations.js]
"use strict";
// Repro from #14896
exports.__esModule = true;
var Query = /** @class */ (function () {
    function Query() {
    }
    return Query;
}());
function css(styles) {
    var classNames = [];
    for (var _i = 1; _i < arguments.length; _i++) {
        classNames[_i - 1] = arguments[_i];
    }
    var args = classNames.map(function (arg) {
        if (arg == null) {
            return null;
        }
        if (typeof arg == "string") {
            return styles[arg];
        }
        if (typeof arg == "object") {
            return Object.keys(arg).reduce(function (obj, key) {
                var exportedClassName = styles[key];
                obj[exportedClassName] = arg[key];
                return obj;
            }, {});
        }
    });
    return "";
}
exports.css = css;