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This commit is contained in:
Felix Roos 2022-03-25 14:39:25 +01:00
parent a19d789145
commit 6f60a3a1d5
98 changed files with 11162 additions and 11122 deletions
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3
packages/eval/.gitignore vendored Normal file
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shift-parser
shift-reducer
shift-traverser

56
packages/eval/evaluate.mjs Normal file
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import * as strudel from '../core/strudel.mjs';
import '../tone/tone.mjs';
import '../midi/midi.mjs';
import '../tonal/voicings.mjs';
import '../../packages/tonal/tonal.mjs';
import '../../packages/xen/xen.mjs';
import '../../packages/xen/tune.mjs';
import '../core/euclid.mjs';
import euclid from '../core/euclid.mjs';
import '../repl-react/pianoroll.mjs';
import '../repl-react/draw.mjs';
import * as uiHelpers from '../repl-react/ui.mjs';
import * as drawHelpers from '../repl-react/draw.mjs';
import gist from '../core/gist.js';
import shapeshifter from './shapeshifter.mjs';
import { mini } from '../mini/mini.mjs';
import * as Tone from 'tone';
import * as toneHelpers from '../tone/tone.mjs';
import * as voicingHelpers from '../tonal/voicings.mjs';
// this will add all methods from definedMethod to strudel + connect all the partial application stuff
const bootstrapped = { ...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
// this will add everything to global scope, which is accessed by eval
Object.assign(globalThis, Tone, bootstrapped, toneHelpers, voicingHelpers, drawHelpers, uiHelpers, {
gist,
euclid,
mini,
});
export const evaluate = async (code) => {
const shapeshifted = shapeshifter(code); // transform syntactically correct js code to semantically usable code
drawHelpers.cleanup();
uiHelpers.cleanup();
let evaluated = await eval(shapeshifted);
if (evaluated?.constructor?.name !== 'Pattern') {
const message = `got "${typeof evaluated}" instead of pattern`;
throw new Error(message + (typeof evaluated === 'function' ? ', did you forget to call a function?' : '.'));
}
return { mode: 'javascript', pattern: evaluated };
};

304
packages/eval/package-lock.json generated Normal file
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{
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"lockfileVersion": 2,
"requires": true,
"packages": {
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"shift-codegen": "^7.0.3",
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"shift-traverser": "^1.0.0"
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packages/eval/package.json Normal file
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{
"name": "@strudel/eval",
"version": "0.0.1",
"description": "Code evaluator for strudel",
"main": "evaluate.mjs",
"directories": {
"test": "test"
},
"scripts": {
"test": "mocha --colors"
},
"repository": {
"type": "git",
"url": "git+https://github.com/tidalcycles/strudel.git"
},
"type": "module",
"keywords": [
"tidalcycles",
"strudel",
"pattern",
"livecoding",
"algorave"
],
"author": "Felix Roos <flix91@gmail.com>",
"license": "GPL-3.0-or-later",
"bugs": {
"url": "https://github.com/tidalcycles/strudel/issues"
},
"homepage": "https://github.com/tidalcycles/strudel#readme",
"devDependencies": {
"shift-ast": "^6.1.0",
"shift-codegen": "^7.0.3",
"shift-parser": "^7.0.3",
"shift-traverser": "^1.0.0"
}
}

265
packages/eval/shapeshifter.mjs Normal file
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/* import { parseScriptWithLocation } from './shift-parser/index.js'; // npm module does not work in the browser
import traverser from './shift-traverser/index.js'; // npm module does not work in the browser */
import { parseScriptWithLocation } from 'shift-parser';
import traverser from 'shift-traverser';
const { replace } = traverser;
import {
LiteralStringExpression,
IdentifierExpression,
CallExpression,
StaticMemberExpression,
ReturnStatement,
ArrayExpression,
LiteralNumericExpression,
} from 'shift-ast';
import shiftCodegen from 'shift-codegen';
const codegen = shiftCodegen.default;
console.log('codegen', codegen);
import * as strudel from '../core/strudel.mjs';
const { Pattern } = strudel;
const isNote = (name) => /^[a-gC-G][bs]?[0-9]$/.test(name);
const addLocations = true;
export const addMiniLocations = true;
export default (_code) => {
const { code, addReturn } = wrapAsync(_code);
const ast = parseScriptWithLocation(code);
const artificialNodes = [];
const parents = [];
const shifted = replace(ast.tree, {
enter(node, parent) {
parents.push(parent);
const isSynthetic = parents.some((p) => artificialNodes.includes(p));
if (isSynthetic) {
return node;
}
// replace template string `xxx` with mini(`xxx`)
if (isBackTickString(node)) {
return minifyWithLocation(node, node, ast.locations, artificialNodes);
}
// allows to use top level strings, which are normally directives... but we don't need directives
if (node.directives?.length === 1 && !node.statements?.length) {
const str = new LiteralStringExpression({ value: node.directives[0].rawValue });
const wrapped = minifyWithLocation(str, node.directives[0], ast.locations, artificialNodes);
return { ...node, directives: [], statements: [wrapped] };
}
// replace double quote string "xxx" with mini('xxx')
if (isStringWithDoubleQuotes(node, ast.locations, code)) {
return minifyWithLocation(node, node, ast.locations, artificialNodes);
}
// operator overloading => still not done
const operators = {
'*': 'fast',
'/': 'slow',
'&': 'stack',
'&&': 'append',
};
if (
node.type === 'BinaryExpression' &&
operators[node.operator] &&
['LiteralNumericExpression', 'LiteralStringExpression', 'IdentifierExpression'].includes(node.right?.type) &&
canBeOverloaded(node.left)
) {
let arg = node.left;
if (node.left.type === 'IdentifierExpression') {
arg = wrapFunction('reify', node.left);
}
return new CallExpression({
callee: new StaticMemberExpression({
property: operators[node.operator],
object: wrapFunction('reify', arg),
}),
arguments: [node.right],
});
}
const isMarkable = isPatternArg(parents) || hasModifierCall(parent);
// add to location to pure(x) calls
if (node.type === 'CallExpression' && node.callee.name === 'pure') {
const literal = node.arguments[0];
// const value = literal[{ LiteralNumericExpression: 'value', LiteralStringExpression: 'name' }[literal.type]];
return reifyWithLocation(literal, node.arguments[0], ast.locations, artificialNodes);
}
// replace pseudo note variables
if (node.type === 'IdentifierExpression') {
if (isNote(node.name)) {
const value = node.name[1] === 's' ? node.name.replace('s', '#') : node.name;
if (addLocations && isMarkable) {
return reifyWithLocation(new LiteralStringExpression({ value }), node, ast.locations, artificialNodes);
}
return new LiteralStringExpression({ value });
}
if (node.name === 'r') {
return new IdentifierExpression({ name: 'silence' });
}
}
if (
addLocations &&
['LiteralStringExpression' /* , 'LiteralNumericExpression' */].includes(node.type) &&
isMarkable
) {
// TODO: to make LiteralNumericExpression work, we need to make sure we're not inside timeCat...
return reifyWithLocation(node, node, ast.locations, artificialNodes);
}
if (addMiniLocations) {
return addMiniNotationLocations(node, ast.locations, artificialNodes);
}
return node;
},
leave() {
parents.pop();
},
});
// add return to last statement (because it's wrapped in an async function artificially)
addReturn(shifted);
const generated = codegen(shifted);
return generated;
};
function wrapAsync(code) {
// wrap code in async to make await work on top level => this will create 1 line offset to locations
// this is why line offset is -1 in getLocationObject calls below
code = `(async () => {
${code}
})()`;
const addReturn = (ast) => {
const body = ast.statements[0].expression.callee.body; // actual code ast inside async function body
body.statements = body.statements
.slice(0, -1)
.concat([new ReturnStatement({ expression: body.statements.slice(-1)[0] })]);
};
return {
code,
addReturn,
};
}
function addMiniNotationLocations(node, locations, artificialNodes) {
const miniFunctions = ['mini', 'm'];
// const isAlreadyWrapped = parent?.type === 'CallExpression' && parent.callee.name === 'withLocationOffset';
if (node.type === 'CallExpression' && miniFunctions.includes(node.callee.name)) {
// mini('c3')
if (node.arguments.length > 1) {
// TODO: transform mini(...args) to cat(...args.map(mini)) ?
console.warn('multi arg mini locations not supported yet...');
return node;
}
const str = node.arguments[0];
return minifyWithLocation(str, str, locations, artificialNodes);
}
if (node.type === 'StaticMemberExpression' && miniFunctions.includes(node.property)) {
// 'c3'.mini or 'c3'.m
return minifyWithLocation(node.object, node, locations, artificialNodes);
}
return node;
}
function wrapFunction(name, ...args) {
return new CallExpression({
callee: new IdentifierExpression({ name }),
arguments: args,
});
}
function isBackTickString(node) {
return node.type === 'TemplateExpression' && node.elements.length === 1;
}
function isStringWithDoubleQuotes(node, locations, code) {
if (node.type !== 'LiteralStringExpression') {
return false;
}
const loc = locations.get(node);
const snippet = code.slice(loc.start.offset, loc.end.offset);
return snippet[0] === '"'; // we can trust the end is also ", as the parsing did not fail
}
// returns true if the given parents belong to a pattern argument node
// this is used to check if a node should receive a location for highlighting
function isPatternArg(parents) {
if (!parents.length) {
return false;
}
const ancestors = parents.slice(0, -1);
const parent = parents[parents.length - 1];
if (isPatternFactory(parent)) {
return true;
}
if (parent?.type === 'ArrayExpression') {
return isPatternArg(ancestors);
}
return false;
}
function hasModifierCall(parent) {
// TODO: modifiers are more than composables, for example every is not composable but should be seen as modifier..
// need all prototypes of Pattern
return (
parent?.type === 'StaticMemberExpression' && Object.keys(Pattern.prototype.composable).includes(parent.property)
);
}
function isPatternFactory(node) {
return node?.type === 'CallExpression' && Object.keys(Pattern.prototype.factories).includes(node.callee.name);
}
function canBeOverloaded(node) {
return (node.type === 'IdentifierExpression' && isNote(node.name)) || isPatternFactory(node);
// TODO: support sequence(c3).transpose(3).x.y.z
}
// turns node in reify(value).withLocation(location), where location is the node's location in the source code
// with this, the reified pattern can pass its location to the event, to know where to highlight when it's active
function reifyWithLocation(literalNode, node, locations, artificialNodes) {
const args = getLocationArguments(node, locations);
const withLocation = new CallExpression({
callee: new StaticMemberExpression({
object: wrapFunction('reify', literalNode),
property: 'withLocation',
}),
arguments: args,
});
artificialNodes.push(withLocation);
return withLocation;
}
// turns node in reify(value).withLocation(location), where location is the node's location in the source code
// with this, the reified pattern can pass its location to the event, to know where to highlight when it's active
function minifyWithLocation(literalNode, node, locations, artificialNodes) {
const args = getLocationArguments(node, locations);
const withLocation = new CallExpression({
callee: new StaticMemberExpression({
object: wrapFunction('mini', literalNode),
property: 'withMiniLocation',
}),
arguments: args,
});
artificialNodes.push(withLocation);
return withLocation;
}
function getLocationArguments(node, locations) {
const loc = locations.get(node);
return [
new ArrayExpression({
elements: [
new LiteralNumericExpression({ value: loc.start.line - 1 }), // the minus 1 assumes the code has been wrapped in async iife
new LiteralNumericExpression({ value: loc.start.column }),
new LiteralNumericExpression({ value: loc.start.offset }),
],
}),
new ArrayExpression({
elements: [
new LiteralNumericExpression({ value: loc.end.line - 1 }), // the minus 1 assumes the code has been wrapped in async iife
new LiteralNumericExpression({ value: loc.end.column }),
new LiteralNumericExpression({ value: loc.end.offset }),
],
}),
];
}

9
packages/eval/test/evaluate.test.mjs Normal file
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@ -0,0 +1,9 @@
/* import { strict as assert } from 'assert';
import evaluate from '../evaluate.mjs';
describe('evaluate', () => {
it('Should evaluate simple double quote string', () => {
assert.deepStrictEqual(evaluate('"c3"'), pure('c3'));
});
});
*/

8
packages/eval/test/shapeshifter.test.mjs Normal file
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@ -0,0 +1,8 @@
import { strict as assert } from 'assert';
import shapeshifter from '../shapeshifter.mjs';
describe('shapeshifter', () => {
it('Should shift simple double quote string', () => {
assert.equal(shapeshifter('"c3"'), '(async()=>{return mini("c3").withMiniLocation([1,0,15],[1,4,19])})()');
});
});