Merge branch 'staging' into dist-generic-library

.github/CODEOWNERS

@@ -0,0 +1,23 @@
+# CODEOWNERS file
+#
+# This file is used to describe who owns what in this repository.
+#
+# For documentation on this file, see https://help.github.com/articles/about-codeowners/
+# Mentioned users will get code review requests.
+#
+# IMPORTANT NOTE: in order to actually get pinged, commit access is required.
+# This also holds true for GitHub teams.
+
+# This file
+/.github/CODEOWNERS @quinn-dougherty
+
+# Any rescript code
+*.res @Hazelfire @OAGr @quinn-dougherty
+
+# Any typescript code
+*.tsx @Hazelfire @OAGr @quinn-dougherty
+
+# Any opsy files
+*.json @quinn-dougherty
+*.yaml @quinn-dougherty
+*.yml @quinn-dougherty

.github/ISSUE_TEMPLATE/developer-bug.md

@@ -0,0 +1,14 @@
+---
+name: Developer friction when contributing to Squiggle
+about: Did your yarn scripts fail? Did the CI diverge from a README? Etc. 
+labels: 'ops'
+---
+# Description:
+
+
+# The OS and version, yarn version, etc. in which this came up
+
+
+# Desired behavior
+
+

.github/ISSUE_TEMPLATE/future.md

@@ -0,0 +1,7 @@
+---
+name: Idea or feature request
+about: Where would you like to see Squiggle go over the next few months, several months, or few years? 
+---
+# Description
+
+

.github/ISSUE_TEMPLATE/user-bug.md

@@ -0,0 +1,18 @@
+---
+name: Bug reports for Squiggle users
+about: Rendering oddly, trouble with the playground, something like this? 
+labels: 'bug'
+---
+# Description:
+
+
+# Steps to reproduce:
+1.
+2.
+3.
+
+# Expected behavior:
+
+
+# What I got instead:
+

.github/workflows/ci.yaml

@@ -0,0 +1,85 @@
+name: Squiggle packages check
+
+on: [push]
+
+jobs:
+
+  pre_check:
+    name: Precheck for skipping redundant jobs
+    runs-on: ubuntu-latest
+    outputs:
+      should_skip_lang: ${{ steps.skip_lang_check.outputs.should_skip }}
+      should_skip_components: ${{ steps.skip_components_check.outputs.should_skip }}
+      should_skip_website: ${{ steps.skip_website_check.outputs.should_skip }}
+    steps:
+      - id: skip_lang_check
+        name: Check if the changes are about squiggle-lang src files
+        uses: fkirc/skip-duplicate-actions@master
+        with:
+          paths: '["packages/squiggle-lang/*"]'
+      - id: skip_components_check
+        name: Check if the changes are about components src files
+        uses: fkirc/skip-duplicate-actions@master
+        with:
+          paths: '["packages/components/*"]'
+      - id: skip_website_check
+        name: Check if the changes are about website src files
+        uses: fkirc/skip-duplicate-actions@master
+        with:
+          paths: '["packages/website/*"]'
+
+  lang-build-test:
+    name: Language build and test
+    runs-on: ubuntu-latest
+    needs: pre_check
+    if: ${{ needs.pre_check.outputs.should_skip_lang != 'true' }}
+    defaults:
+      run:
+        shell: bash
+        working-directory: packages/squiggle-lang
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install dependencies from monorepo level
+      run: cd ../../ && yarn
+    - name: Build rescript codebase
+      run: yarn build
+    - name: Run tests
+      run: yarn test
+    - name: Run webpack
+      run: yarn bundle
+
+  components-build-test:
+    name: Components build and test
+    runs-on: ubuntu-latest
+    needs: [pre_check]
+    if: ${{ needs.pre_check.outputs.should_skip_components != 'true' }}
+    defaults:
+      run:
+        shell: bash
+        working-directory: packages/components
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install dependencies from monorepo level
+      run: cd ../../ && yarn
+    - name: Build rescript in squiggle-lang
+      run: cd ../squiggle-lang && yarn build
+    - name: Run webpack
+      run: yarn bundle
+    - name: Build storybook
+      run: yarn build
+
+  website-build:
+    name: Website build
+    runs-on: ubuntu-latest
+    needs: pre_check
+    if: ${{ needs.pre_check.outputs.should_skip_website != 'true' }}
+    defaults:
+      run:
+        shell: bash
+        working-directory: packages/website
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install dependencies
+      run: yarn
+    - name: Build website assets
+      run: yarn build

.github/workflows/lang-jest.yml

@@ -1,19 +0,0 @@
-name: Squiggle Lang Jest Tests
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: bash
-        working-directory: packages/squiggle-lang
-    steps:
-    - uses: actions/checkout@v2
-    - name: Install Packages
-      run: yarn 
-    - name: Build rescript
-      run: yarn run build
-    - name: Run tests
-      run: yarn test

.gitignore

@@ -3,3 +3,4 @@ yarn-error.log
 .cache
 .merlin
 .parcel-cache
+.DS_Store

.parcelrc

@@ -0,0 +1,6 @@
+{
+    "extends": "@parcel/config-default",
+    "transformers": {
+        "*.res": ["@parcel/transformer-raw"]
+    }
+}

CONTRIBUTING.md

@@ -0,0 +1,42 @@
+_The current document was written quickly and not exhaustively, yet, it's unfinished. [Template here](https://mozillascience.github.io/working-open-workshop/contributing/)_
+
+# Contributing to Squiggle
+
+We welcome contributions from developers, especially people in react/typescript, rescript, and interpreters/parsers. We also are keen to hear issues filed by users! 
+
+Squiggle is currently pre-alpha. 
+
+# Quick links
+
+- [Roadmap to the alpha](https://github.com/QURIresearch/squiggle/projects/2)
+- The team presently communicates via the **EA Forecasting and Epistemics** slack (channels `#squiggle` and `#squiggle-ops`), you can track down an invite by reaching out to Ozzie Gooen
+- [Squiggle documentation](https://www.squiggle-language.com/docs/Language)
+- [Rescript documentation](https://rescript-lang.org/docs/manual/latest/introduction)
+- You can email `quinn@quantifieduncertainty.org` if you need assistance in onboarding or if you have questions 
+
+# Bug reports
+
+Anyone (with a github account) can file an issue at any time. Please allow Quinn, Sam, and Ozzie to triage, but otherwise just follow the suggestions in the issue templates. 
+
+# Project structure
+
+Squiggle is a **monorepo** with four **packages**. 
+- **components** is where we improve reactive interfacing with Squiggle
+- **playground** is the site `playground.squiggle-language.com`
+- **squiggle-lang** is where the magic happens: probability distributions, the interpreter, etc. 
+- **website** is the site `squiggle-language.com`
+
+# Deployment ops
+
+We use netlify, and it should only concern Quinn, Sam, and Ozzie. 
+
+# Development environment, building, testing, dev server
+
+You need `yarn`. 
+
+TODO: fill this out based on all the different packages scripts once they cool down. 
+
+# Pull request protocol
+
+Please work against `staging` branch. **Do not** work against `master`. Please do not merge without approval from some subset of Quinn, Sam, and Ozzie; they will be auto-pinged. 
+

README.md

@@ -1,32 +1,43 @@
 # Squiggle
 
-This is an experiment DSL/language for making probabilistic estimates.
+This is an experiment DSL/language for making probabilistic estimates. The full story can be found [here](https://www.lesswrong.com/s/rDe8QE5NvXcZYzgZ3). 
 
 This monorepo has several packages that can be used for various purposes. All 
 the packages can be found in `packages`.
 
-`@squiggle/lang` in `packages/squiggle-lang` contains the core language, particularly
+- `@quri/squiggle-lang` in `packages/squiggle-lang` contains the core language, particularly
 an interface to parse squiggle expressions and return descriptions of distributions
 or results.
-
+- `@quri/squiggle-components` in `packages/components` contains React components that
-`@squiggle/components` in `packages/components` contains React components that
 can be passed squiggle strings as props, and return a presentation of the result
 of the calculation.
-
+- `@quri/playground` in `packages/playground` contains a website for a playground
-`@squiggle/playground` in `packages/playground` contains a website for a playground
 for squiggle. This website is hosted at `playground.squiggle-language.com`
-
+- `@quri/squiggle-website` in `packages/website` The main descriptive website for squiggle,
-`@squiggle/website` in `packages/website` The main descriptive website for squiggle,
 it is hosted at `squiggle-language.com`.
 
-The playground depends on the components library which then depends on the language.
+The playground depends on the components library which then depends on the language. This means that if you wish to work on the components library, you will need to build (no need to bundle) the language, and as of this writing playground doesn't really work.
-This means that if you wish to work on the components library, you will need
-to package the language, and for the playground to work, you will need to package
-the components library and the playground.
 
-Scripts are available for you in the root directory to do important activities,
+# Develop
-such as:
 
-`yarn build:lang`. Builds and packages the language
+For any project in the repo, begin by running `yarn` in the top level (TODO: is this true?) 
-`yarn storybook:components`. Hosts the component storybook
 
+``` sh
+yarn
+```
+
+See `packages/*/README.md` to work with whatever project you're interested in. 
+
+## `codium` for `rescript` 
+
+If you have `nix` installed with `flakes` enabled, you can build a `codium` in this repo for `rescript` development, if you don't want to pollute your machine's global editor with another mode/extension. 
+
+``` sh
+nix develop
+codium 
+```
+
+The `nix develop` shell also provides `yarn`. 
+
+# Contributing
+See `CONTRIBUTING.md`. 

flake-compat.nix

@@ -0,0 +1,9 @@
+let
+  lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+  inherit (lock.nodes.flake-compat.locked) owner repo rev narHash;
+  flake-compat = builtins.fetchTarball {
+    url = "https://github.com/${owner}/${repo}/archive/${rev}.tar.gz";
+    sha256 = narHash;
+  };
+in
+import flake-compat { src = ./.; }

flake.lock

@@ -0,0 +1,44 @@
+{
+  "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1641205782,
+        "narHash": "sha256-4jY7RCWUoZ9cKD8co0/4tFARpWB+57+r1bLLvXNJliY=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "b7547d3eed6f32d06102ead8991ec52ab0a4f1a7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1647893727,
+        "narHash": "sha256-pOi7VdCb+s5Cwh5CS7YEZVRgH9uCmE87J5W7iXv29Ck=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "1ec61dd4167f04be8d05c45780818826132eea0d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,93 @@
+{
+  description = "Building codium for rescript development";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-compat = {
+      url = "github:edolstra/flake-compat";
+      flake = false;
+    };
+  };
+
+  outputs =
+    { self
+    , nixpkgs
+    , flake-compat
+    }:
+    let
+      # Generate a user-friendly version number.
+      version = builtins.substring 0 8 self.lastModifiedDate;
+      # System types to support.
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" ];
+      # Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'.
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+      # Nixpkgs instantiated for supported system types.
+      nixpkgsFor = forAllSystems (system:
+        import nixpkgs {
+          inherit system;
+          overlays = [ self.overlay ];
+        });
+    in
+    {
+      overlay = final: prev: { };
+      # the default devShell used when running `nix develop`
+      devShell = forAllSystems (system: self.devShells.${system}.defaultShell);
+      devShells = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor."${system}";
+        in
+        {
+          # In case we don't want to provide an editor, this defaultShell will provide only coq packages we need.
+          defaultShell = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              yarn
+              yarn2nix
+              nodePackages.npm
+              nodejs
+              (pkgs.vscode-with-extensions.override {
+                  vscode = pkgs.vscodium;
+                  vscodeExtensions = pkgs.vscode-utils.extensionsFromVscodeMarketplace [
+                    {
+                      name = "rescript-vscode";
+                      publisher = "chenglou92";
+                      version = "1.2.1";
+                      sha256 = "sha256-7/YakKtJ4WhgAR4rZltrq8g4TtM5QZ2spbrEUrNoXVg=";
+                    }
+                    {
+                      name = "vim";
+                      publisher = "vscodevim";
+                      version = "1.22.2";
+                      sha256 = "sha256-dtIlgODzRdoMKnG9050ZcCX3w15A/R3FaMc+ZylvBbU=";
+                    }
+                    {
+                      name = "vscode-typescript-next";
+                      publisher = "ms-vscode";
+                      version = "4.7.20220323";
+                      sha256 = "sha256-mjiBCyg5As/XAU9I5k6jEZWGJA3P6P5o1roe2bS7aUI=";
+                    }
+                    {
+                      name = "nix-ide";
+                      publisher = "jnoortheen";
+                      version = "0.1.20";
+                      sha256 = "sha256-Q6X41I68m0jaCXaQGEFOoAbSUrr/wFhfCH5KrduOtZo=";
+                    }
+                    {
+                      name = "json";
+                      publisher = "ZainChen";
+                      version = "2.0.2";
+                      sha256 = "sha256-nC3Q8KuCtn/jg1j/NaAxWGvnKe/ykrPm2PUjfsJz8aI=";
+                    }
+                    {
+                      name = "prettier-vscode";
+                      publisher = "esbenp";
+                      version = "9.3.0";
+                      sha256 = "sha256-hJgPjWf7a8+ltjmXTK8U/MwqgIZqBjmcCfHsAk2G3PA=";
+                    }
+                  ];
+              })
+            ];
+          };
+        }
+      );
+    };
+}

package.json

@@ -2,14 +2,7 @@
   "private": true,
   "name": "squiggle",
   "scripts": {
-    "build:lang": "cd packages/squiggle-lang && yarn && yarn build && yarn package",
+    "nodeclean": "rm -r node_modules && rm -r packages/*/node_modules"
-    "storybook:components": "cd packages/components && yarn && yarn storybook",
-    "build-storybook:components": "cd packages/components && yarn && yarn build-storybook",
-    "build:components": "cd packages/components && yarn && yarn package",
-    "build:playground": "cd packages/playground && yarn && yarn parcel-build",
-    "ci:lang": "yarn workspace @squiggle/lang ci",
-    "ci:components": "yarn ci:lang && yarn workspace @squiggle/components ci",
-    "ci:playground": "yarn ci:components && yarn workspace @squiggle/playground ci"
   },
   "workspaces": [
     "packages/*"

packages/components/.npmignore

@@ -0,0 +1,9 @@
+node_modules
+storybook-static
+public
+build
+.storybook
+.direnv
+.envrc
+webpack.config.js
+index.html

packages/components/.prettierignore

@@ -0,0 +1,5 @@
+dist
+build
+node_modules
+storybook-static
+.storybook

packages/components/.prettierrc.json

@@ -0,0 +1 @@
+{}

packages/components/.storybook/main.js

@@ -1,15 +1,11 @@
 //const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');
+const custom = require('../webpack.config.js');
 
 module.exports = {
- /* webpackFinal: async (config) => {
+   webpackFinal: async (config) => {
-    config.resolve.plugins = [
+    config.resolve.alias = custom.resolve.alias;
-      ...(config.resolve.plugins || []),
+    return { ...config, module: { ...config.module, rules: config.module.rules.concat(custom.module.rules) } };
-      new TsconfigPathsPlugin({
+  },
-        extensions: config.resolve.extensions,
-      }),
-    ];
-    return config;
-  },*/
   "stories": [
     "../src/**/*.stories.mdx",
     "../src/**/*.stories.@(js|jsx|ts|tsx)"

packages/components/README.md

@@ -1,6 +1,25 @@
 # Squiggle Components
+This package contains all the components for squiggle. These can be used either as a library or hosted as a [storybook](https://storybook.js.org/).
 
-This package contains all the components for squiggle. These can be used either
+# Build for development
-as a library or hosted as a [storybook](https://storybook.js.org/).
+We assume that you had run `yarn` at monorepo level, installing dependencies. 
 
-To run the storybook, run `yarn` then `yarn storybook`.
+You need to _prepare_ by building and bundling `squiggle-lang` 
+``` sh
+cd ../squiggle-lang
+yarn build
+```
+If you've otherwise done this recently you can skip those.
+
+Run a development server
+
+``` sh
+yarn start
+```
+
+And build artefacts for production,
+
+``` sh
+yarn bundle  # builds components library
+yarn build  # builds storybook app
+```

packages/components/package.json

@@ -1,9 +1,8 @@
 {
-  "name": "@squiggle/components",
+  "name": "@quri/squiggle-components",
-  "version": "0.1.0",
+  "version": "0.1.6",
-  "private": true,
   "dependencies": {
-    "@squiggle/lang": "0.1.9",
+    "@quri/squiggle-lang": "0.2.2",
     "@testing-library/jest-dom": "^5.16.2",
     "@testing-library/react": "^12.1.2",
     "@testing-library/user-event": "^13.5.0",
@@ -27,10 +26,10 @@
     "webpack-cli": "^4.9.2"
   },
   "scripts": {
-    "storybook": "cross-env REACT_APP_FAST_REFRESH=false && start-storybook -p 6006 -s public",
+    "start": "cross-env REACT_APP_FAST_REFRESH=false && start-storybook -p 6006 -s public",
-    "build-storybook": "build-storybook -s public",
+    "build": "build-storybook -s public",
-    "package": "tsc",
+    "bundle": "webpack",
-    "ci": "yarn package"
+    "all": "yarn bundle && yarn build"
   },
   "eslintConfig": {
     "extends": [
@@ -69,11 +68,18 @@
     "@storybook/node-logger": "^6.4.18",
     "@storybook/preset-create-react-app": "^4.0.0",
     "@storybook/react": "^6.4.18",
-    "webpack": "^5.68.0"
+    "@types/webpack": "^5.28.0",
+    "prettier": "^2.6.0",
+    "react-codejar": "^1.1.2",
+    "ts-loader": "^9.2.8",
+    "webpack": "^5.70.0",
+    "webpack-cli": "^4.9.2",
+    "webpack-dev-server": "^4.7.4"
   },
   "resolutions": {
     "@types/react": "17.0.39"
   },
-  "main": "dist/index.js",
+  "source": "./src/index.ts",
-  "types": "dist/index.d.ts"
+  "main": "dist/bundle.js",
+  "types": "dist/src/index.d.ts"
 }

packages/components/public/index.html

@@ -5,10 +5,7 @@
     <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="theme-color" content="#000000" />
-    <meta
+    <meta name="description" content="Squiggle components" />
-      name="description"
-      content="Squiggle components"
-    />
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <title>Squiggle Components</title>
   </head>

packages/components/shell.nix

@@ -1,5 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.mkShell { 
-  name = "squiggle-components";
-  buildInputs = with pkgs; [ nodePackages.yarn nodejs ];
-}

packages/components/src/SquiggleChart.tsx

@@ -1,86 +1,96 @@
-import * as React  from 'react';
+import * as React from "react";
-import * as _ from 'lodash';
+import _ from "lodash";
-import type { Spec } from 'vega';
+import type { Spec } from "vega";
-import { run } from '@squiggle/lang';
+import { run } from "@quri/squiggle-lang";
-import type { DistPlus, SamplingInputs } from '@squiggle/lang';
+import type {
-import { createClassFromSpec } from 'react-vega';
+  DistPlus,
-import * as chartSpecification from './spec-distributions.json'
+  SamplingInputs,
-import * as percentilesSpec from './spec-pertentiles.json'
+  exportEnv,
+  exportDistribution,
+} from "@quri/squiggle-lang";
+import { createClassFromSpec } from "react-vega";
+import * as chartSpecification from "./spec-distributions.json";
+import * as percentilesSpec from "./spec-percentiles.json";
 
-let SquiggleVegaChart = createClassFromSpec({'spec': chartSpecification as Spec});
+let SquiggleVegaChart = createClassFromSpec({
+  spec: chartSpecification as Spec,
+});
 
-let SquigglePercentilesChart = createClassFromSpec({'spec': percentilesSpec as Spec});
+let SquigglePercentilesChart = createClassFromSpec({
+  spec: percentilesSpec as Spec,
+});
 
 export interface SquiggleChartProps {
   /** The input string for squiggle */
-  squiggleString : string,
+  squiggleString: string;
 
   /** If the output requires monte carlo sampling, the amount of samples */
-  sampleCount? : number,
+  sampleCount?: number;
   /** The amount of points returned to draw the distribution */
-  outputXYPoints? : number,
+  outputXYPoints?: number;
-  kernelWidth? : number,
+  kernelWidth?: number;
-  pointDistLength? : number,
+  pointDistLength?: number;
   /** If the result is a function, where the function starts */
-  diagramStart? : number,
+  diagramStart?: number;
   /** If the result is a function, where the function ends */
-  diagramStop? : number,
+  diagramStop?: number;
   /** If the result is a function, how many points along the function it samples */
-  diagramCount? : number
+  diagramCount?: number;
+  /** variables declared before this expression */
+  environment?: exportEnv;
+  /** When the environment changes */
+  onEnvChange?(env: exportEnv): void;
 }
 
-export const SquiggleChart : React.FC<SquiggleChartProps> = props => {
+export const SquiggleChart: React.FC<SquiggleChartProps> = (props) => {
-  let samplingInputs : SamplingInputs = {
+  let samplingInputs: SamplingInputs = {
-    sampleCount : props.sampleCount,
+    sampleCount: props.sampleCount,
-    outputXYPoints : props.outputXYPoints,
+    outputXYPoints: props.outputXYPoints,
-    kernelWidth : props.kernelWidth,
+    kernelWidth: props.kernelWidth,
-    pointDistLength : props.pointDistLength
+    pointDistLength: props.pointDistLength,
-  }
+  };
 
-
+  let result = run(props.squiggleString, samplingInputs, props.environment);
-  let result = run(props.squiggleString, samplingInputs);
-  console.log(result)
   if (result.tag === "Ok") {
-    let chartResults = result.value.map(chartResult => {
+    let environment = result.value.environment;
-      console.log(chartResult)
+    let exports = result.value.exports;
-      if(chartResult["NAME"] === "Float"){
+    if (props.onEnvChange) props.onEnvChange(environment);
+    let chartResults = exports.map((chartResult: exportDistribution) => {
+      if (chartResult["NAME"] === "Float") {
         return <MakeNumberShower precision={3} number={chartResult["VAL"]} />;
-      }
+      } else if (chartResult["NAME"] === "DistPlus") {
-      else if(chartResult["NAME"] === "DistPlus"){
         let shape = chartResult.VAL.pointSetDist;
-        if(shape.tag === "Continuous"){
+        if (shape.tag === "Continuous") {
           let xyShape = shape.value.xyShape;
           let totalY = xyShape.ys.reduce((a, b) => a + b);
           let total = 0;
-          let cdf = xyShape.ys.map(y => {
+          let cdf = xyShape.ys.map((y) => {
             total += y;
             return total / totalY;
-          })
+          });
-          let values = _.zip(cdf, xyShape.xs, xyShape.ys).map(([c, x, y ]) => ({cdf: (c * 100).toFixed(2) + "%", x: x, y: y}));
+          let values = _.zip(cdf, xyShape.xs, xyShape.ys).map(([c, x, y]) => ({
+            cdf: (c * 100).toFixed(2) + "%",
+            x: x,
+            y: y,
+          }));
 
-          return (
+          return <SquiggleVegaChart data={{ con: values }} />;
-            <SquiggleVegaChart 
+        } else if (shape.tag === "Discrete") {
-              data={{"con": values}}
-              />
-          );
-        }
-        else if(shape.tag === "Discrete"){
           let xyShape = shape.value.xyShape;
           let totalY = xyShape.ys.reduce((a, b) => a + b);
           let total = 0;
-          let cdf = xyShape.ys.map(y => {
+          let cdf = xyShape.ys.map((y) => {
             total += y;
             return total / totalY;
-          })
+          });
-          let values = _.zip(cdf, xyShape.xs, xyShape.ys).map(([c, x,y]) => ({cdf: (c * 100).toFixed(2) + "%", x: x, y: y}));
+          let values = _.zip(cdf, xyShape.xs, xyShape.ys).map(([c, x, y]) => ({
+            cdf: (c * 100).toFixed(2) + "%",
+            x: x,
+            y: y,
+          }));
 
-          return (
+          return <SquiggleVegaChart data={{ dis: values }} />;
-            <SquiggleVegaChart 
+        } else if (shape.tag === "Mixed") {
-              data={{"dis": values}}
-              />
-          );
-        }
-        else if(shape.tag === "Mixed"){
           let discreteShape = shape.value.discrete.xyShape;
           let totalDiscrete = discreteShape.ys.reduce((a, b) => a + b);
 
@@ -89,141 +99,150 @@ export const SquiggleChart : React.FC<SquiggleChartProps> = props => {
           let continuousPoints = _.zip(continuousShape.xs, continuousShape.ys);
 
           interface labeledPoint {
-            x: number,
+            x: number;
-            y: number,
+            y: number;
-            type: "discrete" | "continuous"
+            type: "discrete" | "continuous";
-          };
+          }
 
-          let markedDisPoints : labeledPoint[] = discretePoints.map(([x,y]) => ({x: x, y: y, type: "discrete"}))
+          let markedDisPoints: labeledPoint[] = discretePoints.map(
-          let markedConPoints : labeledPoint[] = continuousPoints.map(([x,y]) => ({x: x, y: y, type: "continuous"}))
+            ([x, y]) => ({ x: x, y: y, type: "discrete" })
+          );
+          let markedConPoints: labeledPoint[] = continuousPoints.map(
+            ([x, y]) => ({ x: x, y: y, type: "continuous" })
+          );
 
-          let sortedPoints = _.sortBy(markedDisPoints.concat(markedConPoints), 'x')
+          let sortedPoints = _.sortBy(
+            markedDisPoints.concat(markedConPoints),
+            "x"
+          );
 
           let totalContinuous = 1 - totalDiscrete;
-          let totalY = continuousShape.ys.reduce((a:number, b:number) => a + b);
+          let totalY = continuousShape.ys.reduce(
+            (a: number, b: number) => a + b
+          );
 
           let total = 0;
           let cdf = sortedPoints.map((point: labeledPoint) => {
-            if(point.type == "discrete") {
+            if (point.type == "discrete") {
               total += point.y;
               return total;
-            }
+            } else if (point.type == "continuous") {
-            else if (point.type == "continuous") {
+              total += (point.y / totalY) * totalContinuous;
-              total += point.y / totalY * totalContinuous;
               return total;
             }
           });
 
           interface cdfLabeledPoint {
-            cdf: string,
+            cdf: string;
-            x: number,
+            x: number;
-            y: number,
+            y: number;
-            type: "discrete" | "continuous"
+            type: "discrete" | "continuous";
           }
-          let cdfLabeledPoint : cdfLabeledPoint[] = _.zipWith(cdf, sortedPoints, (c: number, point: labeledPoint) => ({...point, cdf: (c * 100).toFixed(2) + "%"}))
+          let cdfLabeledPoint: cdfLabeledPoint[] = _.zipWith(
-          let continuousValues = cdfLabeledPoint.filter(x => x.type == "continuous")
+            cdf,
-          let discreteValues = cdfLabeledPoint.filter(x => x.type == "discrete")
+            sortedPoints,
+            (c: number, point: labeledPoint) => ({
+              ...point,
+              cdf: (c * 100).toFixed(2) + "%",
+            })
+          );
+          let continuousValues = cdfLabeledPoint.filter(
+            (x) => x.type == "continuous"
+          );
+          let discreteValues = cdfLabeledPoint.filter(
+            (x) => x.type == "discrete"
+          );
 
           return (
             <SquiggleVegaChart
-              data={{"con": continuousValues, "dis": discreteValues}}
+              data={{ con: continuousValues, dis: discreteValues }}
             />
           );
         }
-      }
+      } else if (chartResult.NAME === "Function") {
-      else if(chartResult.NAME === "Function"){
         // We are looking at a function. In this case, we draw a Percentiles chart
-          let start = props.diagramStart ? props.diagramStart : 0
+        let start = props.diagramStart ? props.diagramStart : 0;
-          let stop = props.diagramStop ? props.diagramStop : 10
+        let stop = props.diagramStop ? props.diagramStop : 10;
-          let count = props.diagramCount ? props.diagramCount : 0.1
+        let count = props.diagramCount ? props.diagramCount : 0.1;
-          let step = (stop - start)/ count
+        let step = (stop - start) / count;
-          let data = _.range(start, stop, step).map(x => {
+        let data = _.range(start, stop, step).map((x) => {
-            if(chartResult.NAME=="Function"){
+          if (chartResult.NAME == "Function") {
             let result = chartResult.VAL(x);
-              if(result.tag == "Ok"){
+            if (result.tag == "Ok") {
               let percentileArray = [
-                  0.01,
+                0.01, 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.95,
-                  0.05,
+                0.99,
-                  0.1,
+              ];
-                  0.2,
-                  0.3,
-                  0.4,
-                  0.5,
-                  0.6,
-                  0.7,
-                  0.8,
-                  0.9,
-                  0.95,
-                  0.99
-                ]
 
               let percentiles = getPercentiles(percentileArray, result.value);
               return {
-                  "x": x,
+                x: x,
-                  "p1": percentiles[0],
+                p1: percentiles[0],
-                  "p5": percentiles[1],
+                p5: percentiles[1],
-                  "p10": percentiles[2],
+                p10: percentiles[2],
-                  "p20": percentiles[3],
+                p20: percentiles[3],
-                  "p30": percentiles[4],
+                p30: percentiles[4],
-                  "p40": percentiles[5],
+                p40: percentiles[5],
-                  "p50": percentiles[6],
+                p50: percentiles[6],
-                  "p60": percentiles[7],
+                p60: percentiles[7],
-                  "p70": percentiles[8],
+                p70: percentiles[8],
-                  "p80": percentiles[9],
+                p80: percentiles[9],
-                  "p90": percentiles[10],
+                p90: percentiles[10],
-                  "p95": percentiles[11],
+                p95: percentiles[11],
-                  "p99": percentiles[12]
+                p99: percentiles[12],
+              };
             }
-
-                }
-
           }
           return 0;
-          })
+        });
-          return <SquigglePercentilesChart data={{"facet": data}} />
+        return <SquigglePercentilesChart data={{ facet: data }} />;
       }
-      })
+    });
     return <>{chartResults}</>;
-  }
+  } else if (result.tag == "Error") {
-  else if(result.tag == "Error") {
     // At this point, we came across an error. What was our error?
-    return (<p>{"Error parsing Squiggle: " + result.value}</p>)
+    return <p>{"Error parsing Squiggle: " + result.value}</p>;
-
   }
-  return (<p>{"Invalid Response"}</p>)
+  return <p>{"Invalid Response"}</p>;
 };
 
-function getPercentiles(percentiles:number[], t : DistPlus) {
+function getPercentiles(percentiles: number[], t: DistPlus) {
-  if(t.pointSetDist.tag == "Discrete") {
+  if (t.pointSetDist.tag == "Discrete") {
     let total = 0;
-    let maxX = _.max(t.pointSetDist.value.xyShape.xs)
+    let maxX = _.max(t.pointSetDist.value.xyShape.xs);
-    let bounds = percentiles.map(_ => maxX);
+    let bounds = percentiles.map((_) => maxX);
-     _.zipWith(t.pointSetDist.value.xyShape.xs,t.pointSetDist.value.xyShape.ys, (x,y) => {
+    _.zipWith(
-        total += y
+      t.pointSetDist.value.xyShape.xs,
+      t.pointSetDist.value.xyShape.ys,
+      (x, y) => {
+        total += y;
         percentiles.forEach((v, i) => {
-        if(total > v && bounds[i] == maxX){
+          if (total > v && bounds[i] == maxX) {
-        bounds[i] = x
+            bounds[i] = x;
           }
-        })
         });
-     return bounds;
       }
-  else if(t.pointSetDist.tag == "Continuous"){
+    );
+    return bounds;
+  } else if (t.pointSetDist.tag == "Continuous") {
     let total = 0;
-    let maxX = _.max(t.pointSetDist.value.xyShape.xs)
+    let maxX = _.max(t.pointSetDist.value.xyShape.xs);
-    let totalY = _.sum(t.pointSetDist.value.xyShape.ys)
+    let totalY = _.sum(t.pointSetDist.value.xyShape.ys);
-    let bounds = percentiles.map(_ => maxX);
+    let bounds = percentiles.map((_) => maxX);
-     _.zipWith(t.pointSetDist.value.xyShape.xs,t.pointSetDist.value.xyShape.ys, (x,y) => {
+    _.zipWith(
+      t.pointSetDist.value.xyShape.xs,
+      t.pointSetDist.value.xyShape.ys,
+      (x, y) => {
         total += y / totalY;
         percentiles.forEach((v, i) => {
-        if(total > v && bounds[i] == maxX){
+          if (total > v && bounds[i] == maxX) {
-        bounds[i] = x
+            bounds[i] = x;
           }
-        })
         });
-     return bounds;
       }
-  else if(t.pointSetDist.tag == "Mixed"){
+    );
+    return bounds;
+  } else if (t.pointSetDist.tag == "Mixed") {
     let discreteShape = t.pointSetDist.value.discrete.xyShape;
     let totalDiscrete = discreteShape.ys.reduce((a, b) => a + b);
 
@@ -232,80 +251,87 @@ function getPercentiles(percentiles:number[], t : DistPlus) {
     let continuousPoints = _.zip(continuousShape.xs, continuousShape.ys);
 
     interface labeledPoint {
-      x: number,
+      x: number;
-      y: number,
+      y: number;
-      type: "discrete" | "continuous"
+      type: "discrete" | "continuous";
-    };
+    }
 
-    let markedDisPoints : labeledPoint[] = discretePoints.map(([x,y]) => ({x: x, y: y, type: "discrete"}))
+    let markedDisPoints: labeledPoint[] = discretePoints.map(([x, y]) => ({
-    let markedConPoints : labeledPoint[] = continuousPoints.map(([x,y]) => ({x: x, y: y, type: "continuous"}))
+      x: x,
+      y: y,
+      type: "discrete",
+    }));
+    let markedConPoints: labeledPoint[] = continuousPoints.map(([x, y]) => ({
+      x: x,
+      y: y,
+      type: "continuous",
+    }));
 
-    let sortedPoints = _.sortBy(markedDisPoints.concat(markedConPoints), 'x')
+    let sortedPoints = _.sortBy(markedDisPoints.concat(markedConPoints), "x");
 
     let totalContinuous = 1 - totalDiscrete;
-    let totalY = continuousShape.ys.reduce((a:number, b:number) => a + b);
+    let totalY = continuousShape.ys.reduce((a: number, b: number) => a + b);
 
     let total = 0;
-    let maxX = _.max(sortedPoints.map(x => x.x));
+    let maxX = _.max(sortedPoints.map((x) => x.x));
-    let bounds = percentiles.map(_ => maxX);
+    let bounds = percentiles.map((_) => maxX);
     sortedPoints.map((point: labeledPoint) => {
-      if(point.type == "discrete") {
+      if (point.type == "discrete") {
         total += point.y;
+      } else if (point.type == "continuous") {
+        total += (point.y / totalY) * totalContinuous;
       }
-      else if (point.type == "continuous") {
+      percentiles.forEach((v, i) => {
-        total += point.y / totalY * totalContinuous;
+        if (total > v && bounds[i] == maxX) {
-      }
-      percentiles.forEach((v,i) => {
-        if(total > v && bounds[i] == maxX){
           bounds[i] = total;
         }
-      })
+      });
       return total;
     });
     return bounds;
   }
 }
 
-function MakeNumberShower(props: {number: number, precision :number}){
+function MakeNumberShower(props: { number: number; precision: number }) {
   let numberWithPresentation = numberShow(props.number, props.precision);
   return (
     <span>
       {numberWithPresentation.value}
       {numberWithPresentation.symbol}
-      {numberWithPresentation.power ? 
+      {numberWithPresentation.power ? (
         <span>
-        {'\u00b710'}
+          {"\u00b710"}
-        <span style={{fontSize: "0.6em", verticalAlign: "super"}}>
+          <span style={{ fontSize: "0.6em", verticalAlign: "super" }}>
             {numberWithPresentation.power}
           </span>
         </span>
-      : <></>}
+      ) : (
+        <></>
+      )}
     </span>
-
   );
-
 }
 
-const orderOfMagnitudeNum = (n:number) => {
+const orderOfMagnitudeNum = (n: number) => {
   return Math.pow(10, n);
 };
 
 // 105 -> 3
-const orderOfMagnitude = (n:number) => {
+const orderOfMagnitude = (n: number) => {
   return Math.floor(Math.log(n) / Math.LN10 + 0.000000001);
 };
 
-function withXSigFigs(number:number, sigFigs:number) {
+function withXSigFigs(number: number, sigFigs: number) {
   const withPrecision = number.toPrecision(sigFigs);
   const formatted = Number(withPrecision);
   return `${formatted}`;
 }
 
 class NumberShower {
-  number: number
+  number: number;
-  precision: number
+  precision: number;
 
-  constructor(number:number, precision = 2) {
+  constructor(number: number, precision = 2) {
     this.number = number;
     this.precision = precision;
   }
@@ -314,9 +340,9 @@ class NumberShower {
     const number = Math.abs(this.number);
     const response = this.evaluate(number);
     if (this.number < 0) {
-      response.value = '-' + response.value;
+      response.value = "-" + response.value;
     }
-    return response
+    return response;
   }
 
   metricSystem(number: number, order: number) {
@@ -327,7 +353,7 @@ class NumberShower {
 
   evaluate(number: number) {
     if (number === 0) {
-      return { value: this.metricSystem(0, 0) }
+      return { value: this.metricSystem(0, 0) };
     }
 
     const order = orderOfMagnitude(number);
@@ -336,13 +362,13 @@ class NumberShower {
     } else if (order < 4) {
       return { value: this.metricSystem(number, 0) };
     } else if (order < 6) {
-      return { value: this.metricSystem(number, 3), symbol: 'K' };
+      return { value: this.metricSystem(number, 3), symbol: "K" };
     } else if (order < 9) {
-      return { value: this.metricSystem(number, 6), symbol: 'M' };
+      return { value: this.metricSystem(number, 6), symbol: "M" };
     } else if (order < 12) {
-      return { value: this.metricSystem(number, 9), symbol: 'B' };
+      return { value: this.metricSystem(number, 9), symbol: "B" };
     } else if (order < 15) {
-      return { value: this.metricSystem(number, 12), symbol: 'T' };
+      return { value: this.metricSystem(number, 12), symbol: "T" };
     } else {
       return { value: this.metricSystem(number, order), power: order };
     }

packages/components/src/SquiggleEditor.tsx

@@ -0,0 +1,120 @@
+import * as React from "react";
+import * as ReactDOM from "react-dom";
+import { SquiggleChart } from "./SquiggleChart";
+import { ReactCodeJar } from "react-codejar";
+import type { exportEnv } from "@quri/squiggle-lang";
+
+export interface SquiggleEditorProps {
+  /** The input string for squiggle */
+  initialSquiggleString?: string;
+  /** If the output requires monte carlo sampling, the amount of samples */
+  sampleCount?: number;
+  /** The amount of points returned to draw the distribution */
+  outputXYPoints?: number;
+  kernelWidth?: number;
+  pointDistLength?: number;
+  /** If the result is a function, where the function starts */
+  diagramStart?: number;
+  /** If the result is a function, where the function ends */
+  diagramStop?: number;
+  /** If the result is a function, how many points along the function it samples */
+  diagramCount?: number;
+  /** The environment, other variables that were already declared */
+  environment?: exportEnv;
+  /** when the environment changes. Used again for notebook magic*/
+  onEnvChange?(env: exportEnv): void;
+}
+
+const highlight = (editor: HTMLInputElement) => {
+  let code = editor.textContent;
+  code = code.replace(/\((\w+?)(\b)/g, '(<font color="#8a2be2">$1</font>$2');
+  editor.innerHTML = code;
+};
+
+interface SquiggleEditorState {
+  expression: string;
+  env: exportEnv;
+}
+
+export class SquiggleEditor extends React.Component<
+  SquiggleEditorProps,
+  SquiggleEditorState
+> {
+  constructor(props: SquiggleEditorProps) {
+    super(props);
+    let code = props.initialSquiggleString ? props.initialSquiggleString : "";
+    this.state = { expression: code, env: props.environment };
+  }
+  render() {
+    let { expression, env } = this.state;
+    let props = this.props;
+    return (
+      <div>
+        <ReactCodeJar
+          code={expression}
+          onUpdate={(e) => {
+            this.setState({ expression: e });
+          }}
+          style={{
+            borderRadius: "6px",
+            width: "530px",
+            border: "1px solid grey",
+            fontFamily: "'Source Code Pro', monospace",
+            fontSize: "14px",
+            fontWeight: "400",
+            letterSpacing: "normal",
+            lineHeight: "20px",
+            padding: "10px",
+            tabSize: "4",
+          }}
+          highlight={highlight}
+          lineNumbers={false}
+        />
+        <SquiggleChart
+          squiggleString={expression}
+          sampleCount={props.sampleCount}
+          outputXYPoints={props.outputXYPoints}
+          kernelWidth={props.kernelWidth}
+          pointDistLength={props.pointDistLength}
+          diagramStart={props.diagramStart}
+          diagramStop={props.diagramStop}
+          diagramCount={props.diagramCount}
+          environment={env}
+          onEnvChange={props.onEnvChange}
+        />
+      </div>
+    );
+  }
+}
+
+export function renderSquiggleEditor(props: SquiggleEditorProps) {
+  let parent = document.createElement("div");
+  ReactDOM.render(
+    <SquiggleEditor
+      {...props}
+      onEnvChange={(env) => {
+        // Typescript complains on two levels here.
+        //  - Div elements don't have a value property
+        //  - Even if it did (like it was an input element), it would have to
+        //    be a string
+        //
+        //  Which are reasonable in most web contexts.
+        //
+        //  However we're using observable, neither of those things have to be
+        //  true there. div elements can contain the value property, and can have
+        //  the value be any datatype they wish.
+        //
+        //  This is here to get the 'viewof' part of:
+        //  viewof env = cell('normal(0,1)')
+        //  to work
+        // @ts-ignore
+        parent.value = env;
+
+        parent.dispatchEvent(new CustomEvent("input"));
+        if (props.onEnvChange) props.onEnvChange(env);
+      }}
+    />,
+    parent
+  );
+  return parent;
+}

packages/components/src/index.ts

@@ -1 +1,2 @@
-export { SquiggleChart } from './SquiggleChart';
+export { SquiggleChart } from "./SquiggleChart";
+export { SquiggleEditor, renderSquiggleEditor } from "./SquiggleEditor";

packages/components/src/spec-distributions.json

@@ -4,14 +4,14 @@
   "width": 500,
   "height": 200,
   "padding": 5,
-  "data": [{"name": "con"}, {"name": "dis"}],
+  "data": [{ "name": "con" }, { "name": "dis" }],
 
   "signals": [
     {
       "name": "mousex",
       "description": "x position of mouse",
       "update": "0",
-      "on": [{"events": "mousemove", "update": "1-x()/width"}]
+      "on": [{ "events": "mousemove", "update": "1-x()/width" }]
     },
     {
       "name": "xscale",
@@ -35,86 +35,88 @@
     }
   ],
 
-  "scales": [{
+  "scales": [
+    {
       "name": "xscale",
       "type": "pow",
-    "exponent": {"signal": "xscale"},
+      "exponent": { "signal": "xscale" },
       "range": "width",
       "zero": false,
       "nice": false,
       "domain": {
         "fields": [
-        { "data": "con", "field": "x"},
+          { "data": "con", "field": "x" },
-        { "data": "dis", "field": "x"}
+          { "data": "dis", "field": "x" }
         ]
       }
-  }, {
+    },
+    {
       "name": "yscale",
       "type": "pow",
-    "exponent": {"signal": "yscale"},
+      "exponent": { "signal": "yscale" },
       "range": "height",
       "nice": true,
       "zero": true,
       "domain": {
         "fields": [
-        { "data": "con", "field": "y"},
+          { "data": "con", "field": "y" },
-        { "data": "dis", "field": "y"}
+          { "data": "dis", "field": "y" }
         ]
       }
     }
   ],
 
   "axes": [
-    {"orient": "bottom", "scale": "xscale", "tickCount": 20},
+    { "orient": "bottom", "scale": "xscale", "tickCount": 20 },
-    {"orient": "left", "scale": "yscale"}
+    { "orient": "left", "scale": "yscale" }
   ],
 
   "marks": [
     {
       "type": "area",
-      "from": {"data": "con"},
+      "from": { "data": "con" },
       "encode": {
         "enter": {
-          "tooltip": {"signal": "datum.cdf"}
+          "tooltip": { "signal": "datum.cdf" }
         },
         "update": {
-          "x": {"scale": "xscale", "field": "x"},
+          "x": { "scale": "xscale", "field": "x" },
-          "y": {"scale": "yscale", "field": "y"},
+          "y": { "scale": "yscale", "field": "y" },
-          "y2": {"scale": "yscale", "value": 0},
+          "y2": { "scale": "yscale", "value": 0 },
           "fill": {
             "signal": "{gradient: 'linear', x1: 1, y1: 1, x2: 0, y2: 1, stops: [ {offset: 0.0, color: 'steelblue'}, {offset: clamp(mousex, 0, 1), color: 'steelblue'}, {offset: clamp(mousex, 0, 1), color: 'blue'}, {offset: 1.0, color: 'blue'} ] }"
           },
-          "interpolate": {"value": "monotone"},
+          "interpolate": { "value": "monotone" },
-          "fillOpacity": {"value": 1}
+          "fillOpacity": { "value": 1 }
         }
       }
     },
     {
       "type": "rect",
-      "from": {"data": "dis"},
+      "from": { "data": "dis" },
       "encode": {
         "enter": {
-          "y2": {"scale": "yscale", "value": 0},
+          "y2": { "scale": "yscale", "value": 0 },
-          "width": {"value": 1}
+          "width": { "value": 1 }
         },
         "update": {
-          "x": {"scale": "xscale", "field": "x"},
+          "x": { "scale": "xscale", "field": "x" },
-          "y": {"scale": "yscale", "field": "y"}
+          "y": { "scale": "yscale", "field": "y" }
         }
       }
     },
     {
       "type": "symbol",
-      "from": {"data": "dis"},
+      "from": { "data": "dis" },
       "encode": {
         "enter": {
-          "shape": {"value": "circle"},
+          "shape": { "value": "circle" },
-          "width": {"value": 5},
+          "width": { "value": 5 },
-          "tooltip": {"signal": "datum.y"}
+          "tooltip": { "signal": "datum.y" }
         },
         "update": {
-          "x": {"scale": "xscale", "field": "x"},
+          "x": { "scale": "xscale", "field": "x" },
-          "y": {"scale": "yscale", "field": "y"}
+          "y": { "scale": "yscale", "field": "y" }
         }
       }
     }

packages/components/src/stories/Introduction.stories.mdx

@@ -1,4 +1,4 @@
-import { Meta } from '@storybook/addon-docs';
+import { Meta } from "@storybook/addon-docs";
 
 <Meta title="Squiggle/Introduction" />
 

packages/components/src/stories/SquiggleChart.stories.mdx

@@ -1,9 +1,9 @@
-import { SquiggleChart } from '../SquiggleChart'
+import { SquiggleChart } from "../SquiggleChart";
-import { Canvas, Meta, Story, Props } from '@storybook/addon-docs';
+import { Canvas, Meta, Story, Props } from "@storybook/addon-docs";
 
-<Meta title="Squiggle/SquiggleChart" component={ SquiggleChart } />
+<Meta title="Squiggle/SquiggleChart" component={SquiggleChart} />
 
-export const Template = SquiggleChart
+export const Template = SquiggleChart;
 
 # Squiggle Chart
 
@@ -19,53 +19,62 @@ could be continuous, discrete or mixed.
 ## Distributions
 
 An example of a normal distribution is:
+
 <Canvas>
   <Story
     name="Normal"
     args={{
-      squiggleString: "normal(5,2)"
+      squiggleString: "normal(5,2)",
-    }}> 
+    }}
+  >
     {Template.bind({})}
   </Story>
 </Canvas>
 
-
 An example of a Discrete distribution is:
+
 <Canvas>
   <Story
     name="Discrete"
     args={{
-      squiggleString: "mm(0, 1, [0.5, 0.5])"
+      squiggleString: "mm(0, 1, [0.5, 0.5])",
-    }}>
+    }}
+  >
     {Template.bind({})}
   </Story>
 </Canvas>
 
 An example of a Mixed distribution is:
+
 <Canvas>
   <Story
     name="Mixed"
     args={{
-      squiggleString: "mm(0, 5 to 10, [0.5, 0.5])"
+      squiggleString: "mm(0, 5 to 10, [0.5, 0.5])",
-    }}> 
+    }}
+  >
     {Template.bind({})}
   </Story>
 </Canvas>
 
 ## Constants
+
 A constant is a simple number as a result. This has special formatting rules
 to allow large and small numbers being printed cleanly.
+
 <Canvas>
   <Story
     name="Constant"
     args={{
-      squiggleString: "500000 * 5000000"
+      squiggleString: "500000 * 5000000",
-    }}> 
+    }}
+  >
     {Template.bind({})}
   </Story>
 </Canvas>
 
 ## Functions
+
 Finally, a function can be returned, and this shows how the distribution changes
 over the axis between x = 0 and 10.
 
@@ -73,8 +82,9 @@ over the axis between x = 0 and 10.
   <Story
     name="Function"
     args={{
-      squiggleString: "f(x) = normal(x,x)\nf"
+      squiggleString: "f(x) = normal(x,x)\nf",
-    }}> 
+    }}
+  >
     {Template.bind({})}
   </Story>
 </Canvas>

packages/components/tsconfig.json

@@ -1,18 +1,28 @@
 {
   "compilerOptions": {
+    "paths": {
+      "@quri/squiggle-lang": ["../squiggle-lang/src/js"]
+    },
     "module": "commonjs",
     "jsx": "react",
+    "resolveJsonModule": true,
     "noImplicitAny": false,
     "esModuleInterop": true,
     "removeComments": true,
     "preserveConstEnums": true,
-    "resolveJsonModule": true,
+    "composite": true,
     "outDir": "./dist",
     "declarationDir": "./dist",
     "declaration": true,
     "sourceMap": true
   },
+  "files": ["src/spec-distributions.json","src/spec-percentiles.json"],
   "target": "ES6",
-  "include": ["src/**/*"],
+  "include": ["src/**/*", "src/*"],
-  "exclude": ["node_modules", "**/*.spec.ts"]
+  "exclude": ["node_modules", "**/*.spec.ts"],
+  "references": [
+    {
+      "path": "../squiggle-lang"
+    }
+  ]
 }

packages/components/webpack.config.js

@@ -0,0 +1,38 @@
+const path = require("path");
+
+module.exports = {
+  mode: "production",
+  devtool: "source-map",
+  entry: "./src/index.ts",
+  module: {
+    rules: [
+      {
+        test: /\.tsx?$/,
+        loader: "ts-loader",
+        options: { projectReferences: true },
+        exclude: /node_modules/,
+      },
+    ],
+  },
+  resolve: {
+    extensions: [".js", ".tsx", ".ts"],
+    alias: {
+      "@quri/squiggle-lang": path.resolve(__dirname, '../squiggle-lang/src/js')
+    },
+  },
+  output: {
+    filename: "bundle.js",
+    path: path.resolve(__dirname, "dist"),
+    library: {
+      name: "squiggle_components",
+      type: "umd",
+    },
+  },
+  devServer: {
+    static: {
+      directory: path.join(__dirname, "public"),
+    },
+    compress: true,
+    port: 9000,
+  },
+};

packages/playground/README.md

@@ -1,9 +1,11 @@
+# TODO: REVIVE PLAYGROUND. 
+
 # Squiggle Playground
 
 This repository contains the squiggle playground, a small web interface
 for playing around with squiggle concepts.
 
-It depends on `@squiggle/components` and `@squiggle/lang` so both of them will
+It depends on `@quri/squiggle-components` and `@quri/squiggle-lang` so both of them will
 need to be packaged for this to work. This can be done from the root directory
 with
 

packages/playground/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@squiggle/playground",
+  "name": "@quri/squiggle-playground",
   "version": "0.1.0",
   "homepage": "https://foretold-app.github.io/estiband/",
   "scripts": {
@@ -13,7 +13,7 @@
   "license": "MIT",
   "dependencies": {
     "@emotion/react": "^11.8.1",
-    "@squiggle/lang": "^0.1.9",
+    "@quri/squiggle-lang": "^0.2.2",
     "ace-builds": "^1.4.12",
     "antd": "^4.18.5",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",

packages/playground/shell.nix

@@ -1,5 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.mkShell {
-  name = "squiggle";
-  buildInputs = with pkgs; [ yarn yarn2nix nodePackages.npm ];
-}

packages/playground/src/components/DistBuilder.tsx

@@ -1,5 +1,5 @@
 import { FC, useState } from "react"
-import { SquiggleChart } from "@squiggle/components"
+import { SquiggleChart } from "@quri/squiggle-components"
 import { CodeEditor } from "./CodeEditor"
 import { Form, Input, Card, Row, Col } from "antd"
 import { css } from '@emotion/react'

packages/squiggle-lang/.gitignore

@@ -14,5 +14,6 @@ yarn-error.log
 .netlify
 .idea
 *.gen.ts
+*.gen.tsx
 *.gen.js
 dist

packages/squiggle-lang/.npmignore

@@ -0,0 +1,11 @@
+node_modules
+shell.nix
+.cache
+.direnv
+src
+__tests__
+lib
+examples
+yarn.nix
+bsconfig.json
+tsconfig.json

packages/squiggle-lang/README.md

@@ -1,9 +1,28 @@
+# Squiggle language
+
+# Build for development
+We assume that you ran `yarn` at the monorepo level. 
+``` sh
+yarn build
+```
+
+`yarn bundle` is needed for a deployment. 
+
+Other: 
+``` sh
+yarn start  # listens to files and recompiles at every mutation
+yarn test
+yarn test:watch  # keeps an active session and runs all tests at every mutation
+```
+
+# TODO: clean up this README.md 
+
 # Squiggle Language
 Squiggle is a language for representing probability distributions, as well as 
 functions that return probability distributions. Its original intended use is
 for improving epistemics around EA decisions.
 
-This package, @squiggle/lang, contains the core language of squiggle. The main
+This package, @quri/squiggle-lang, contains the core language of squiggle. The main
 feature revolves around evaluating squiggle expressions. Currently the package
 only exports a single function, named "run", which from a squiggle string returns
 an object representing the result of the evaluation.

packages/squiggle-lang/__tests__/JS__Test.ts

@@ -1,19 +1,34 @@
 import { run } from '../src/js/index';
 
-describe("A simple result", () => {
+let testRun = (x: string) => {
+  let result = run(x)
+  if(result.tag == 'Ok'){
+    return { tag: 'Ok', value: result.value.exports }
+  }
+  else {
+    return result
+  }
+}
+
+describe("Simple calculations and results", () => {
     test("mean(normal(5,2))", () => {
-        expect(run("mean(normal(5,2))")).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 5  } ] })
+        expect(testRun("mean(normal(5,2))")).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 5  } ] })
     })
     test("10+10", () => {
-        let foo = run("10 + 10")
+        let foo = testRun("10 + 10")
         expect(foo).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 20  } ] })
     })
+})
+describe("Log function", () => {
     test("log(1) = 0", () => {
-      let foo = run("log(1)")
+      let foo = testRun("log(1)")
       expect(foo).toEqual({ tag: 'Ok', value: [ { NAME: 'Float', VAL: 0} ]})
     })
+})
+
+describe("Multimodal too many weights error", () => {
     test("mm(0,0,[0,0,0])", () => {
-      let foo = run("mm(0,0,[0,0,0])")
+      let foo = testRun("mm(0,0,[0,0,0])")
       expect(foo).toEqual({ "tag": "Error", "value": "Function multimodal error: Too many weights provided" })
     })
 });

packages/squiggle-lang/bsconfig.json

@@ -1,5 +1,5 @@
 {
-  "name": "@squiggle/lang",
+  "name": "@quri/squiggle-lang",
   "reason": {},
   "sources": [
     {

packages/squiggle-lang/package.json

@@ -1,18 +1,15 @@
 {
-  "name": "@squiggle/lang",
+  "name": "@quri/squiggle-lang",
-  "version": "0.1.9",
+  "version": "0.2.2",
-  "homepage": "https://foretold-app.github.io/estiband/",
+  "homepage": "https://squiggle-language.com",
   "scripts": {
     "build": "rescript build -with-deps",
-    "parcel": "parcel build ./src/js/index.js --no-source-maps --no-autoinstall",
+    "bundle": "webpack",
     "start": "rescript build -w -with-deps",
     "clean": "rescript clean",
     "test": "jest",
-    "test:ci": "yarn jest ./__tests__/Lodash__test.re",
+    "test:watch": "jest --watchAll",
-    "watch:test": "jest --watchAll",
+    "all": "yarn build && yarn bundle && yarn test"
-    "watch:s": "yarn jest -- Converter_test --watch",
-    "package": "tsc",
-    "ci": "yarn build && yarn package"
   },
   "keywords": [
     "Rescript"
@@ -21,27 +18,29 @@
   "license": "MIT",
   "dependencies": {
     "@glennsl/bs-json": "^5.0.2",
-    "@rescriptbr/reform": "^11.0.1",
+    "jstat": "^1.9.5",
-    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
     "lodash": "4.17.15",
     "mathjs": "5.10.3",
     "pdfast": "^0.2.0",
-    "rationale": "0.2.0"
+    "rationale": "0.2.0",
+    "rescript": "^9.1.4"
   },
   "devDependencies": {
     "@glennsl/rescript-jest": "^0.9.0",
     "@types/jest": "^27.4.0",
+    "@types/webpack": "^5.28.0",
+    "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
     "docsify": "^4.12.2",
     "gentype": "^4.3.0",
     "jest": "^27.5.1",
-    "jstat": "1.9.2",
     "moduleserve": "0.9.1",
-    "parcel": "^2.2.1",
-    "parcel-bundler": "1.12.4",
-    "rescript": "^9.1.4",
     "ts-jest": "^27.1.3",
-    "typescript": "^4.5.5"
+    "ts-loader": "^9.2.8",
+    "typescript": "^4.5.5",
+    "webpack": "^5.70.0",
+    "webpack-cli": "^4.9.2"
   },
-  "main": "./dist/js/index.js",
+  "source": "./src/js/index.ts",
+  "main": "./dist/bundle.js",
   "types": "./dist/js/index.d.ts"
 }

packages/squiggle-lang/shell.nix

@@ -1,5 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.mkShell {
-  name = "squiggle";
-  buildInputs = with pkgs; [ yarn yarn2nix nodePackages.npm ];
-}

packages/squiggle-lang/src/js/index.ts

@@ -1,6 +1,6 @@
 import {runAll} from '../rescript/ProgramEvaluator.gen';
-import type { Inputs_SamplingInputs_t as SamplingInputs } from '../rescript/ProgramEvaluator.gen';
+import type { Inputs_SamplingInputs_t as SamplingInputs, exportEnv, exportType, exportDistribution} from '../rescript/ProgramEvaluator.gen';
-export type { SamplingInputs } 
+export type { SamplingInputs, exportEnv, exportDistribution }
 export type {t as DistPlus} from '../rescript/pointSetDist/DistPlus.gen';
 
 export let defaultSamplingInputs : SamplingInputs = {
@@ -9,7 +9,9 @@ export let defaultSamplingInputs : SamplingInputs = {
   pointDistLength : 1000
 }
 
-export function run(squiggleString : string, samplingInputs? : SamplingInputs) {
+export function run(squiggleString : string, samplingInputs? : SamplingInputs, environment?: exportEnv) : { tag: "Ok"; value: exportType }
+  | { tag: "Error"; value: string } {
   let si : SamplingInputs = samplingInputs ? samplingInputs : defaultSamplingInputs
-  return runAll(squiggleString, si)
+  let env : exportEnv = environment ? environment : []
+  return runAll(squiggleString, si, env)
 }

packages/squiggle-lang/src/rescript/ProgramEvaluator.res

@@ -36,12 +36,20 @@ module Inputs = {
   }
 }
 
-type exportType = [
+type exportDistribution = [
   | #DistPlus(DistPlus.t)
   | #Float(float)
   | #Function((float) => Belt.Result.t<DistPlus.t,string>)
 ]
 
+type exportEnv = array<(string, ASTTypes.node)>
+
+type exportType = {
+  environment : exportEnv,
+  exports: array<exportDistribution>
+}
+
+
 module Internals = {
   let addVariable = (
     {samplingInputs, squiggleString, environment}: Inputs.inputs,
@@ -71,40 +79,17 @@ module Internals = {
   let runNode = (inputs, node) =>
     AST.toLeaf(makeInputs(inputs), inputs.environment, node)
 
-  let runProgram = (inputs: Inputs.inputs, p: ASTTypes.program) => {
+  let renderIfNeeded = (inputs: Inputs.inputs, node: ASTTypes.node): result<
-    let ins = ref(inputs)
-    p
-    |> E.A.fmap(x =>
-      switch x {
-      | #Assignment(name, node) =>
-        ins := addVariable(ins.contents, name, node)
-        None
-      | #Expression(node) =>
-        Some(runNode(ins.contents, node) |> E.R.fmap(r => (ins.contents.environment, r)))
-      }
-    )
-    |> E.A.O.concatSomes
-    |> E.A.R.firstErrorOrOpen
-  }
-
-  let inputsToLeaf = (inputs: Inputs.inputs) =>
-    Parser.fromString(inputs.squiggleString) |> E.R.bind(_, g => runProgram(inputs, g))
-
-  let outputToDistPlus = (inputs: Inputs.inputs, pointSetDist: PointSetTypes.pointSetDist) =>
-    DistPlus.make(~pointSetDist, ~squiggleString=Some(inputs.squiggleString), ())
-}
-
-let renderIfNeeded = (inputs: Inputs.inputs, node: ASTTypes.node): result<
     ASTTypes.node,
     string,
-> =>
+  > =>
     node |> (
       x =>
         switch x {
         | #Normalize(_) as n
         | #SymbolicDist(_) as n =>
           #Render(n)
-        |> Internals.runNode(inputs)
+          |> runNode(inputs)
           |> (
             x =>
               switch x {
@@ -118,7 +103,10 @@ let renderIfNeeded = (inputs: Inputs.inputs, node: ASTTypes.node): result<
         }
     )
 
-let rec returnDist = (functionInfo : (array<string>, ASTTypes.node), 
+  let outputToDistPlus = (inputs: Inputs.inputs, pointSetDist: PointSetTypes.pointSetDist) =>
+    DistPlus.make(~pointSetDist, ~squiggleString=Some(inputs.squiggleString), ())
+
+  let rec returnDist = (functionInfo : (array<string>, ASTTypes.node), 
                     inputs : Inputs.inputs,
                     env : ASTTypes.environment) => {
     (input : float) => {
@@ -136,70 +124,80 @@ let rec returnDist = (functionInfo : (array<string>, ASTTypes.node),
         }
       )
     }
-}
+  }
-// TODO: Consider using ExpressionTypes.ExpressionTree.getFloat or similar in this function
+  // TODO: Consider using ExpressionTypes.ExpressionTree.getFloat or similar in this function
-and coersionToExportedTypes = (
+  and coersionToExportedTypes = (
     inputs,
     env: ASTTypes.environment,
-  node: ASTTypes.node,
+    ex: ASTTypes.node,
-): result<exportType, string> =>
+  ): result<exportDistribution, string> =>
-  node
+    ex
     |> renderIfNeeded(inputs)
     |> E.R.bind(_, x =>
       switch x {
       | #RenderedDist(Discrete({xyShape: {xs: [x], ys: [1.0]}})) => Ok(#Float(x))
       | #SymbolicDist(#Float(x)) => Ok(#Float(x))
-    | #RenderedDist(n) => Ok(#DistPlus(Internals.outputToDistPlus(inputs, n)))
+      | #RenderedDist(n) => Ok(#DistPlus(outputToDistPlus(inputs, n)))
       | #Function(n) => Ok(#Function(returnDist(n, inputs, env)))
       | n => Error("Didn't output a rendered distribution. Format:" ++ AST.toString(n))
       }
     )
 
-and evaluateFunction = (
+  and evaluateFunction = (
     inputs: Inputs.inputs,
     fn: (array<string>, ASTTypes.node),
     fnInputs,
-) => {
+  ) => {
     let output = AST.runFunction(
-    Internals.makeInputs(inputs),
+      makeInputs(inputs),
       inputs.environment,
       fnInputs,
       fn,
     )
     output |> E.R.bind(_, coersionToExportedTypes(inputs, inputs.environment))
+  }
+
+  let runProgram = (inputs: Inputs.inputs, p: ASTTypes.program) => {
+    let ins = ref(inputs)
+    p
+      |> E.A.fmap(x =>
+        switch x {
+        | #Assignment(name, node) =>
+          ins := addVariable(ins.contents, name, node)
+          None
+        | #Expression(node) =>
+          Some(runNode(ins.contents, node))
+        }
+      )
+      |> E.A.O.concatSomes
+      |> E.A.R.firstErrorOrOpen
+      |> E.R.bind(_, d => 
+           d
+            |> E.A.fmap(x => coersionToExportedTypes(inputs, ins.contents.environment, x))
+            |> E.A.R.firstErrorOrOpen
+         )
+      |> E.R.fmap(ex => 
+          {
+            environment: Belt.Map.String.toArray(ins.contents.environment),
+            exports: ex
+          }
+        )
+  }
+
+  let inputsToLeaf = (inputs: Inputs.inputs) =>
+    Parser.fromString(inputs.squiggleString) |> E.R.bind(_, g => runProgram(inputs, g))
+
 }
 
 
-
-
-let rec mapM = (f, xs) =>
-  switch xs {
-  | [] => Ok([])
-  | arr =>
-    switch f(arr[0]) {
-    | Error(err) => Error(err)
-    | Ok(val) =>
-      switch mapM(f, Belt.Array.sliceToEnd(arr, 1)) {
-      | Error(err) => Error(err)
-      | Ok(restList) => Ok(Belt.Array.concat([val], restList))
-      }
-    }
-  }
-
-let evaluateProgram = (inputs: Inputs.inputs) =>
-  inputs
-  |> Internals.inputsToLeaf
-  |> E.R.bind(_, xs => mapM(((a, b)) => coersionToExportedTypes(inputs, a, b), xs))
-
-
 @genType
-let runAll = (squiggleString: string, samplingInputs: Inputs.SamplingInputs.t) => {
+let runAll : (string, Inputs.SamplingInputs.t, exportEnv) => result<exportType,string> = 
+   (squiggleString, samplingInputs, environment) => {
   let inputs = Inputs.make(
     ~samplingInputs,
     ~squiggleString,
-    ~environment=[]->Belt.Map.String.fromArray,
+    ~environment=Belt.Map.String.fromArray(environment),
     (),
   )
-  let response1 = evaluateProgram(inputs);
+  Internals.inputsToLeaf(inputs)
-  response1
 }

packages/squiggle-lang/src/rescript/interpreter/ASTTypes.res

@@ -1,3 +1,4 @@
+@genType
 type rec hash = array<(string, node)>
 and node = [
   | #SymbolicDist(SymbolicDistTypes.symbolicDist)

packages/squiggle-lang/src/rescript/parser/Parser.res

@@ -297,7 +297,6 @@ let fromString2 = str => {
   )
 
   let value = E.R.bind(mathJsParse, MathAdtToDistDst.run)
-  Js.log2(mathJsParse, value)
   value
 }
 

packages/squiggle-lang/src/rescript/symbolicDist/SymbolicDistTypes.res

@@ -31,6 +31,7 @@ type triangular = {
   high: float,
 }
 
+@genType
 type symbolicDist = [
   | #Normal(normal)
   | #Beta(beta)

packages/squiggle-lang/src/rescript/utility/Operation.res

@@ -1,5 +1,6 @@
 // This file has no dependencies. It's used outside of the interpreter, but the interpreter depends on it.
 
+@genType
 type algebraicOperation = [
   | #Add
   | #Multiply
@@ -7,6 +8,7 @@ type algebraicOperation = [
   | #Divide
   | #Exponentiate
 ]
+@genType
 type pointwiseOperation = [#Add | #Multiply | #Exponentiate]
 type scaleOperation = [#Multiply | #Exponentiate | #Log]
 type distToFloatOperation = [

packages/squiggle-lang/tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "module": "commonjs",
+    "jsx": "react",
     "allowJs": true,
     "noImplicitAny": true,
     "removeComments": true,
@@ -8,9 +9,10 @@
     "sourceMap": true,
     "outDir": "./dist",
     "declarationDir": "./dist",
-    "declaration": true
+    "declaration": true,
+    "composite": true
   },
   "target": "ES6",
   "include": ["src/**/*"],
-  "exclude": ["node_modules", "**/*.spec.ts"]
+  "exclude": ["node_modules", "**/*.spec.ts", "webpack.config.js"]
 }

packages/squiggle-lang/webpack.config.js

@@ -0,0 +1,26 @@
+const path = require('path');
+
+module.exports = {
+  mode: 'production',
+  entry: './src/js/index.ts',
+  module: {
+    rules: [
+      {
+        test: /\.tsx?$/,
+        use: 'ts-loader',
+        exclude: /node_modules/,
+      },
+    ],
+  },
+  resolve: {
+    extensions: ['.tsx', '.ts', '.js'],
+  },
+  output: {
+    filename: 'bundle.js',
+    path: path.resolve(__dirname, 'dist'),
+    library: {
+      name: 'squiggle_lang',
+      type: 'umd',
+    },
+  },
+};

packages/website/README.md

@@ -4,38 +4,32 @@ This website is built using [Docusaurus 2](https://docusaurus.io/), a modern sta
 
 ### Installation
 
-```
+``` sh
-$ yarn
+yarn
 ```
 
 ### Local Development
 
-```
+``` sh
-$ yarn start
+yarn start
 ```
 
 This command starts a local development server and opens up a browser window. Most changes are reflected live without having to restart the server.
 
 ### Build
 
-```
+``` sh
-$ yarn build
+yarn build
 ```
 
 This command generates static content into the `build` directory and can be served using any static contents hosting service.
 
-### Deployment
+### Clean
 
-Using SSH:
+Clean up the build artefacts. 
-
+``` sh
-```
+yarn clean
-$ USE_SSH=true yarn deploy
 ```
 
-Not using SSH:
+# TODO: unify formatting across `packages/*/README.md` 
-
+# TODO: build docs in `ci.yaml`. 
-```
-$ GIT_USER=<Your GitHub username> yarn deploy
-```
-
-If you are using GitHub pages for hosting, this command is a convenient way to build the website and push to the `gh-pages` branch.

packages/website/package.json

@@ -3,15 +3,10 @@
   "version": "0.0.0",
   "private": true,
   "scripts": {
-    "docusaurus": "docusaurus",
     "start": "docusaurus start",
     "build": "docusaurus build",
-    "swizzle": "docusaurus swizzle",
+    "clean": "docusaurus clear",
-    "deploy": "docusaurus deploy",
+    "all": "yarn build"
-    "clear": "docusaurus clear",
-    "serve": "docusaurus serve",
-    "write-translations": "docusaurus write-translations",
-    "write-heading-ids": "docusaurus write-heading-ids"
   },
   "dependencies": {
     "@docusaurus/core": "2.0.0-beta.15",

shell.nix

@@ -1,5 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.mkShell {
-  name = "squiggle-root";
-  buildInputs = with pkgs; [ nodePackages.yarn ];
-}