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Joeri Exelmans 2025-06-05 10:10:33 +02:00
parent 5b13fbb047
commit 62f85302fd
4 changed files with 1 additions and 52 deletions
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snippets/versioning.js Normal file
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import { pretty } from "../lib/util/pretty.js";
import { newLiteral, transform, read, getReadDependencies, verifyValue } from "../lib/versioning/value.js";
import { merge, merge2, newSlot, overwrite } from "../lib/versioning/slot.js";
import { compareNumbers } from "../lib/compare/primitives.js";
const inc = x => x + 1;
console.log("##############");
console.log("## Counting ##");
console.log("##############");
const counterOneSlot = newSlot(Symbol('counter'))(newLiteral(1));
const valueOne = read(counterOneSlot);
console.log(pretty({valueOne}));
const onePlusOne = transform(valueOne)(newLiteral(inc));
console.log(pretty({onePlusOne}));
const onePlusOnePlusOne = transform(onePlusOne)(newLiteral(inc));
console.log(pretty({onePlusOnePlusOne}));
verifyValue(valueOne);
verifyValue(onePlusOne);
verifyValue(onePlusOnePlusOne);
console.log("#############");
console.log("## Summing ##");
console.log("#############");
const priceSlot = newSlot(Symbol('price'))(newLiteral(20.66));
const taxSlot = newSlot(Symbol('tax'))(newLiteral(4.34));
const total =
transform(read(priceSlot))(
transform(read(taxSlot))(
newLiteral(tax => price => price + tax)));
console.log(pretty({total}))
const totalPlusOne = transform(total)(newLiteral(inc));
console.log(pretty({totalPlusOne}));
verifyValue(totalPlusOne);
console.log("getReadDependencies(totalPlusOne):", getReadDependencies(totalPlusOne));
console.log("###############");
console.log("## Branching ##");
console.log("###############");
const fiveSlot = newSlot(Symbol('counter'))(newLiteral(5));
const sixSlot = overwrite(fiveSlot)(newLiteral(6));
const sevenSlot = overwrite(fiveSlot)(newLiteral(7));
const eightSlot = overwrite(fiveSlot)(newLiteral(8));
const intMerge = merge(compareNumbers);
const intMerge2 = merge2(compareNumbers);
const sixSevenSlot = intMerge(sixSlot)(sevenSlot);
const sevenEightSlot = intMerge(sevenSlot)(eightSlot);
// console.log(compareSlots(intCompare)(fiveSlot)(fiveSlot));
// console.log(compareSlots(intCompare)(sixSlot)(sixSlot));
// console.log(compareSlots(intCompare)(fiveSlot)(sixSlot));
// console.log(compareSlots(intCompare)(sixSlot)(fiveSlot));
const sixSevenEightSlot = intMerge2(sixSevenSlot)(sevenEightSlot);
console.log(pretty({sixSevenEightSlot}));
// console.log("########################");
// console.log("## Heterogeneous data ##");
// console.log("########################");
// // Slot<Int>
// const numberOfSheepSlot = newSlot(Symbol('numberOfSheep'))(newLiteral(5));
// const alternativeNumberOfSheepSlot = newSlot(Symbol('alternativeNumberOfSheep'))(newLiteral(6));
// // Slot<String>
// const labelSlot = newSlot(Symbol('label'))(newLiteral("number of sheep"));
// const combineFn = newLiteral(label => numberOfSheep => `${label}: ${numberOfSheep}`)
// // Slot<String>
// const labelAndValueSlotA = overwrite(labelSlot)(
// transform(read(numberOfSheepSlot))(
// transform(read(labelSlot))(combineFn)));
// const labelAndValueSlotB = overwrite(labelSlot)(
// transform(read(alternativeNumberOfSheepSlot))(
// transform(read(labelSlot))(combineFn)));
// console.log(
// add(add(emptySet(compareSlots(compareStrings)))(labelAndValueSlotA))(labelAndValueSlotB)
// );
// merge()(labelSlot)(labelAndValueSlot)