139 lines
4.6 KiB
JavaScript
139 lines
4.6 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.patch = exports.empty = exports.diff = exports.combine = exports.ChunkPatchTypeId = void 0;
|
|
var Chunk = _interopRequireWildcard(require("../../Chunk.js"));
|
|
var Equal = _interopRequireWildcard(require("../../Equal.js"));
|
|
var _Function = _interopRequireWildcard(require("../../Function.js"));
|
|
var Dual = _Function;
|
|
var Data = _interopRequireWildcard(require("../data.js"));
|
|
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
|
|
/** @internal */
|
|
const ChunkPatchTypeId = exports.ChunkPatchTypeId = /*#__PURE__*/Symbol.for("effect/DifferChunkPatch");
|
|
function variance(a) {
|
|
return a;
|
|
}
|
|
const PatchProto = {
|
|
...Data.Structural.prototype,
|
|
[ChunkPatchTypeId]: {
|
|
_Value: variance,
|
|
_Patch: variance
|
|
}
|
|
};
|
|
const EmptyProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
|
|
_tag: "Empty"
|
|
});
|
|
const _empty = /*#__PURE__*/Object.create(EmptyProto);
|
|
/**
|
|
* @internal
|
|
*/
|
|
const empty = () => _empty;
|
|
exports.empty = empty;
|
|
const AndThenProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
|
|
_tag: "AndThen"
|
|
});
|
|
const makeAndThen = (first, second) => {
|
|
const o = Object.create(AndThenProto);
|
|
o.first = first;
|
|
o.second = second;
|
|
return o;
|
|
};
|
|
const AppendProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
|
|
_tag: "Append"
|
|
});
|
|
const makeAppend = values => {
|
|
const o = Object.create(AppendProto);
|
|
o.values = values;
|
|
return o;
|
|
};
|
|
const SliceProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
|
|
_tag: "Slice"
|
|
});
|
|
const makeSlice = (from, until) => {
|
|
const o = Object.create(SliceProto);
|
|
o.from = from;
|
|
o.until = until;
|
|
return o;
|
|
};
|
|
const UpdateProto = /*#__PURE__*/Object.assign(/*#__PURE__*/Object.create(PatchProto), {
|
|
_tag: "Update"
|
|
});
|
|
const makeUpdate = (index, patch) => {
|
|
const o = Object.create(UpdateProto);
|
|
o.index = index;
|
|
o.patch = patch;
|
|
return o;
|
|
};
|
|
/** @internal */
|
|
const diff = options => {
|
|
let i = 0;
|
|
let patch = empty();
|
|
while (i < options.oldValue.length && i < options.newValue.length) {
|
|
const oldElement = Chunk.unsafeGet(i)(options.oldValue);
|
|
const newElement = Chunk.unsafeGet(i)(options.newValue);
|
|
const valuePatch = options.differ.diff(oldElement, newElement);
|
|
if (!Equal.equals(valuePatch, options.differ.empty)) {
|
|
patch = (0, _Function.pipe)(patch, combine(makeUpdate(i, valuePatch)));
|
|
}
|
|
i = i + 1;
|
|
}
|
|
if (i < options.oldValue.length) {
|
|
patch = (0, _Function.pipe)(patch, combine(makeSlice(0, i)));
|
|
}
|
|
if (i < options.newValue.length) {
|
|
patch = (0, _Function.pipe)(patch, combine(makeAppend(Chunk.drop(i)(options.newValue))));
|
|
}
|
|
return patch;
|
|
};
|
|
/** @internal */
|
|
exports.diff = diff;
|
|
const combine = exports.combine = /*#__PURE__*/Dual.dual(2, (self, that) => makeAndThen(self, that));
|
|
/** @internal */
|
|
const patch = exports.patch = /*#__PURE__*/Dual.dual(3, (self, oldValue, differ) => {
|
|
if (self._tag === "Empty") {
|
|
return oldValue;
|
|
}
|
|
let chunk = oldValue;
|
|
let patches = Chunk.of(self);
|
|
while (Chunk.isNonEmpty(patches)) {
|
|
const head = Chunk.headNonEmpty(patches);
|
|
const tail = Chunk.tailNonEmpty(patches);
|
|
switch (head._tag) {
|
|
case "Empty":
|
|
{
|
|
patches = tail;
|
|
break;
|
|
}
|
|
case "AndThen":
|
|
{
|
|
patches = Chunk.prepend(head.first)(Chunk.prepend(head.second)(tail));
|
|
break;
|
|
}
|
|
case "Append":
|
|
{
|
|
chunk = Chunk.appendAll(head.values)(chunk);
|
|
patches = tail;
|
|
break;
|
|
}
|
|
case "Slice":
|
|
{
|
|
const array = Chunk.toReadonlyArray(chunk);
|
|
chunk = Chunk.unsafeFromArray(array.slice(head.from, head.until));
|
|
patches = tail;
|
|
break;
|
|
}
|
|
case "Update":
|
|
{
|
|
const array = Chunk.toReadonlyArray(chunk);
|
|
array[head.index] = differ.patch(head.patch, array[head.index]);
|
|
chunk = Chunk.unsafeFromArray(array);
|
|
patches = tail;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return chunk;
|
|
});
|
|
//# sourceMappingURL=chunkPatch.js.map
|