Pattern .define + .bootstrap

+ seperate parse / evaluate
+ add Pattern.edit
+ move string hacks to evaluate
+ automate eval scoping with globalThis
+ add random tune button
+ mini: handle angle brackets
+ add chordBass
+ fix old tunes
This commit is contained in:
Felix Roos 2022-02-15 23:05:14 +01:00
parent c225c058bc
commit c11c217baf
9 changed files with 259 additions and 221 deletions

38
repl/src/evaluate.ts Normal file
View file

@ -0,0 +1,38 @@
import * as strudel from '../../strudel.mjs';
import './tone';
import './midi';
import './voicings';
import './tonal';
import './groove';
import shapeshifter from './shapeshifter';
import { minify } from './parse';
// this will add all methods from definedMethod to strudel + connect all the partial application stuff
const bootstrapped: any = { ...strudel, ...strudel.Pattern.prototype.bootstrap() };
// console.log('bootstrapped',bootstrapped.transpose(2).transpose);
function hackLiteral(literal, names, func) {
names.forEach((name) => {
Object.defineProperty(literal.prototype, name, {
get: function () {
return func(String(this));
},
});
});
}
// with this, you can do 'c2 [eb2 g2]'.mini.fast(2) or 'c2 [eb2 g2]'.m.fast(2),
hackLiteral(String, ['mini', 'm'], bootstrapped.mini); // comment out this line if you panic
hackLiteral(String, ['pure', 'p'], bootstrapped.pure); // comment out this line if you panic
Object.assign(globalThis, bootstrapped); // this will add contents of bootstrapped to scope (used by eval)
export const evaluate: any = (code: string) => {
const shapeshifted = shapeshifter(code); // transform syntactically correct js code to semantically usable code
const pattern = minify(eval(shapeshifted)); // eval and minify (if user entered a string)
if (pattern?.constructor?.name !== 'Pattern') {
const message = `got "${typeof pattern}" instead of pattern`;
throw new Error(message + (typeof pattern === 'function' ? ', did you forget to call a function?' : '.'));
}
return { mode: 'javascript', pattern: pattern };
};