94 lines
3.2 KiB
JavaScript
94 lines
3.2 KiB
JavaScript
import { pretty } from "../lib/util/pretty.js";
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import { newLiteral, transform, read, getReadDependencies, verifyValue } from "../lib/versioning/value.js";
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import { merge, merge2, newSlot, overwrite } from "../lib/versioning/slot.js";
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import { compareNumbers } from "../lib/compare/primitives.js";
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const inc = x => x + 1;
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console.log("##############");
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console.log("## Counting ##");
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console.log("##############");
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const counterOneSlot = newSlot(Symbol('counter'))(newLiteral(1));
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const valueOne = read(counterOneSlot);
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console.log(pretty({valueOne}));
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const onePlusOne = transform(valueOne)(newLiteral(inc));
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console.log(pretty({onePlusOne}));
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const onePlusOnePlusOne = transform(onePlusOne)(newLiteral(inc));
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console.log(pretty({onePlusOnePlusOne}));
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verifyValue(valueOne);
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verifyValue(onePlusOne);
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verifyValue(onePlusOnePlusOne);
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console.log("#############");
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console.log("## Summing ##");
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console.log("#############");
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const priceSlot = newSlot(Symbol('price'))(newLiteral(20.66));
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const taxSlot = newSlot(Symbol('tax'))(newLiteral(4.34));
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const total =
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transform(read(priceSlot))(
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transform(read(taxSlot))(
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newLiteral(tax => price => price + tax)));
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console.log(pretty({total}))
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const totalPlusOne = transform(total)(newLiteral(inc));
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console.log(pretty({totalPlusOne}));
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verifyValue(totalPlusOne);
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console.log("getReadDependencies(totalPlusOne):", getReadDependencies(totalPlusOne));
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console.log("###############");
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console.log("## Branching ##");
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console.log("###############");
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const fiveSlot = newSlot(Symbol('counter'))(newLiteral(5));
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const sixSlot = overwrite(fiveSlot)(newLiteral(6));
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const sevenSlot = overwrite(fiveSlot)(newLiteral(7));
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const eightSlot = overwrite(fiveSlot)(newLiteral(8));
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const intMerge = merge(compareNumbers);
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const intMerge2 = merge2(compareNumbers);
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const sixSevenSlot = intMerge(sixSlot)(sevenSlot);
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const sevenEightSlot = intMerge(sevenSlot)(eightSlot);
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// console.log(compareSlots(intCompare)(fiveSlot)(fiveSlot));
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// console.log(compareSlots(intCompare)(sixSlot)(sixSlot));
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// console.log(compareSlots(intCompare)(fiveSlot)(sixSlot));
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// console.log(compareSlots(intCompare)(sixSlot)(fiveSlot));
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const sixSevenEightSlot = intMerge2(sixSevenSlot)(sevenEightSlot);
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console.log(pretty({sixSevenEightSlot}));
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// console.log("########################");
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// console.log("## Heterogeneous data ##");
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// console.log("########################");
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// // Slot<Int>
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// const numberOfSheepSlot = newSlot(Symbol('numberOfSheep'))(newLiteral(5));
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// const alternativeNumberOfSheepSlot = newSlot(Symbol('alternativeNumberOfSheep'))(newLiteral(6));
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// // Slot<String>
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// const labelSlot = newSlot(Symbol('label'))(newLiteral("number of sheep"));
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// const combineFn = newLiteral(label => numberOfSheep => `${label}: ${numberOfSheep}`)
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// // Slot<String>
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// const labelAndValueSlotA = overwrite(labelSlot)(
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// transform(read(numberOfSheepSlot))(
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// transform(read(labelSlot))(combineFn)));
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// const labelAndValueSlotB = overwrite(labelSlot)(
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// transform(read(alternativeNumberOfSheepSlot))(
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// transform(read(labelSlot))(combineFn)));
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// console.log(
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// add(add(emptySet(compareSlots(compareStrings)))(labelAndValueSlotA))(labelAndValueSlotB)
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// );
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// merge()(labelSlot)(labelAndValueSlot)
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