65 lines
2.4 KiB
JavaScript
65 lines
2.4 KiB
JavaScript
|
import { pipe } from './function';
|
||
|
|
import { snd } from './ReadonlyTuple';
|
||
|
|
export function of(F) {
|
||
|
|
return function (a) { return function (s) { return F.of([a, s]); }; };
|
||
|
|
}
|
||
|
|
export function map(F) {
|
||
|
|
return function (f) { return function (fa) { return function (s) { return F.map(fa(s), function (_a) {
|
||
|
|
var a = _a[0], s1 = _a[1];
|
||
|
|
return [f(a), s1];
|
||
|
|
}); }; }; };
|
||
|
|
}
|
||
|
|
export function ap(M) {
|
||
|
|
return function (fa) { return function (fab) { return function (s) { return M.chain(fab(s), function (_a) {
|
||
|
|
var f = _a[0], s = _a[1];
|
||
|
|
return M.map(fa(s), function (_a) {
|
||
|
|
var a = _a[0], s = _a[1];
|
||
|
|
return [f(a), s];
|
||
|
|
});
|
||
|
|
}); }; }; };
|
||
|
|
}
|
||
|
|
export function chain(M) {
|
||
|
|
return function (f) { return function (ma) { return function (s) { return M.chain(ma(s), function (_a) {
|
||
|
|
var a = _a[0], s1 = _a[1];
|
||
|
|
return f(a)(s1);
|
||
|
|
}); }; }; };
|
||
|
|
}
|
||
|
|
export function fromState(F) {
|
||
|
|
return function (sa) { return function (s) { return F.of(sa(s)); }; };
|
||
|
|
}
|
||
|
|
export function fromF(F) {
|
||
|
|
return function (ma) { return function (s) { return F.map(ma, function (a) { return [a, s]; }); }; };
|
||
|
|
}
|
||
|
|
export function evaluate(F) {
|
||
|
|
return function (s) { return function (ma) { return F.map(ma(s), function (_a) {
|
||
|
|
var a = _a[0];
|
||
|
|
return a;
|
||
|
|
}); }; };
|
||
|
|
}
|
||
|
|
export function execute(F) {
|
||
|
|
return function (s) { return function (ma) { return F.map(ma(s), snd); }; };
|
||
|
|
}
|
||
|
|
/** @deprecated */
|
||
|
|
/* istanbul ignore next */
|
||
|
|
export function getStateM(M) {
|
||
|
|
var _ap = ap(M);
|
||
|
|
var _map = map(M);
|
||
|
|
var _chain = chain(M);
|
||
|
|
var _evaluate = evaluate(M);
|
||
|
|
var _execute = execute(M);
|
||
|
|
return {
|
||
|
|
map: function (fa, f) { return pipe(fa, _map(f)); },
|
||
|
|
ap: function (fab, fa) { return pipe(fab, _ap(fa)); },
|
||
|
|
of: of(M),
|
||
|
|
chain: function (ma, f) { return pipe(ma, _chain(f)); },
|
||
|
|
get: function () { return function (s) { return M.of([s, s]); }; },
|
||
|
|
put: function (s) { return function () { return M.of([undefined, s]); }; },
|
||
|
|
modify: function (f) { return function (s) { return M.of([undefined, f(s)]); }; },
|
||
|
|
gets: function (f) { return function (s) { return M.of([f(s), s]); }; },
|
||
|
|
fromState: fromState(M),
|
||
|
|
fromM: fromF(M),
|
||
|
|
evalState: function (fa, s) { return pipe(fa, _evaluate(s)); },
|
||
|
|
execState: function (fa, s) { return pipe(fa, _execute(s)); }
|
||
|
|
};
|
||
|
|
}
|