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support object arithmetic

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This commit is contained in:
Felix Roos 2022-11-01 21:31:39 +01:00
parent 24328ee8ae
commit e128b02da1
5 changed files with 159 additions and 42 deletions
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36
packages/core/test/pattern.test.mjs
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@ -47,6 +47,9 @@ import {
import { steady } from '../signal.mjs';
import controls from '../controls.mjs';
const { n } = controls;
const st = (begin, end) => new State(ts(begin, end));
const ts = (begin, end) => new TimeSpan(Fraction(begin), Fraction(end));
const hap = (whole, part, value, context = {}) => new Hap(whole, part, value, context);
@ -138,7 +141,7 @@ describe('Pattern', () => {
expect(pure('hello').query(st(0.5, 2.5)).length).toBe(3);
});
it('Supports zero-width queries', () => {
expect(pure('hello').queryArc(0,0).length).toBe(1);
expect(pure('hello').queryArc(0, 0).length).toBe(1);
});
});
describe('fmap()', () => {
@ -194,6 +197,9 @@ describe('Pattern', () => {
sequence([11, [12, 13]], [21, [22, 23]], [31, [32, 33]]),
);
});
it('can add object patterns', () => {
sameFirst(n(sequence(1, [2, 3])).add(n(10)), n(sequence(11, [12, 13])));
});
});
describe('keep()', () => {
it('can structure In()', () => {
@ -376,9 +382,10 @@ describe('Pattern', () => {
);
});
it('copes with breaking up events across cycles', () => {
expect(pure('a').slow(2)._fastGap(2)._setContext({}).query(st(0, 2))).toStrictEqual(
[hap(ts(0, 1), ts(0, 0.5), 'a'), hap(ts(0.5, 1.5), ts(1, 1.5), 'a')]
);
expect(pure('a').slow(2)._fastGap(2)._setContext({}).query(st(0, 2))).toStrictEqual([
hap(ts(0, 1), ts(0, 0.5), 'a'),
hap(ts(0.5, 1.5), ts(1, 1.5), 'a'),
]);
});
});
describe('_compressSpan()', () => {
@ -434,14 +441,14 @@ describe('Pattern', () => {
// mini('eb3 [c3 g3]/2 ') always plays [c3 g3]
});
it('Supports zero-length queries', () => {
expect(steady('a')._slow(1).queryArc(0,0)
).toStrictEqual(steady('a').queryArc(0,0))
expect(steady('a')._slow(1).queryArc(0, 0)).toStrictEqual(steady('a').queryArc(0, 0));
});
});
describe('slow()', () => {
it('Supports zero-length queries', () => {
expect(steady('a').slow(1)._setContext({}).queryArc(0,0)
).toStrictEqual(steady('a')._setContext({}).queryArc(0,0))
expect(steady('a').slow(1)._setContext({}).queryArc(0, 0)).toStrictEqual(
steady('a')._setContext({}).queryArc(0, 0),
);
});
});
describe('inside', () => {
@ -812,10 +819,11 @@ describe('Pattern', () => {
});
it('Squeezes to the correct cycle', () => {
expect(
pure(time.struct(true))._squeezeJoin().queryArc(3,4).map(x => x.value)
).toStrictEqual(
[Fraction(3.5)]
)
pure(time.struct(true))
._squeezeJoin()
.queryArc(3, 4)
.map((x) => x.value),
).toStrictEqual([Fraction(3.5)]);
});
});
describe('ply', () => {
@ -868,9 +876,7 @@ describe('Pattern', () => {
});
describe('range', () => {
it('Can be patterned', () => {
expect(sequence(0, 0).range(sequence(0, 0.5), 1).firstCycle()).toStrictEqual(
sequence(0, 0.5).firstCycle(),
);
expect(sequence(0, 0).range(sequence(0, 0.5), 1).firstCycle()).toStrictEqual(sequence(0, 0.5).firstCycle());
});
});
describe('range2', () => {