Merge branch 'develop' into reducer-dev

.github/CODEOWNERS

@@ -8,15 +8,23 @@
 # IMPORTANT NOTE: in order to actually get pinged, commit access is required.
 # This also holds true for GitHub teams.
 
-# This file
+# Rescript 
-/.github/CODEOWNERS @quinn-dougherty
-
-# Any rescript code
 *.res @Hazelfire @OAGr @quinn-dougherty
+*.resi @Hazelfire @OAGr @quinn-dougherty
 
-# Any typescript code
+# Typescript 
 *.tsx @Hazelfire @OAGr
+*.ts @Hazelfire @OAGr
+
+# Javascript
+*.js @Hazelfire
 
 # Any opsy files
+.github/* @quinn-dougherty
 *.json @quinn-dougherty @Hazelfire
 *.y*ml @quinn-dougherty
+*.config.js @Hazelfire
+
+# Documentation
+*.md @quinn-dougherty @OAGr @Hazelfire
+*.mdx @quinn-dougherty @OAGr @Hazelfire

.github/ISSUE_TEMPLATE/developer-bug.md

@@ -1,6 +1,6 @@
 ---
 name: Developer friction when contributing to Squiggle
-about: Did your yarn scripts fail? Did the CI diverge from a README? Have a testing-related task? Etc. 
+about: Have a testing-related task? Did your yarn scripts fail? Did the CI diverge from a README? Etc.  
 labels: 'ops & testing'
 ---
 # Description:

.github/workflows/ci.yml

@@ -1,11 +1,12 @@
 name: Squiggle packages check
 
 on:
-  push:  # Delete this line if there becomes a scarcity of build minutes.
   pull_request:
     branches:
       - master
+      - production
       - staging
+      - develop
 
 jobs:
 
@@ -33,8 +34,29 @@ jobs:
         with:
           paths: '["packages/website/**"]'
 
-  lang-build-test:
+  lang-lint: 
-    name: Language build and test
+    name: Language lint
+    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
+      run: cd ../../ && yarn
+    - name: Check rescript lint
+      run: yarn lint:rescript
+    - name: Check javascript, typescript, and markdown lint
+      uses: creyD/prettier_action@v4.2
+      with:
+        dry: true
+        prettier_options: --check .
+
+  lang-build-test-bundle:
+    name: Language build, test, and bundle
     runs-on: ubuntu-latest
     needs: pre_check
     if: ${{ needs.pre_check.outputs.should_skip_lang != 'true' }}
@@ -53,10 +75,10 @@ jobs:
     - name: Run webpack
       run: yarn bundle
 
-  components-build-test:
+  components-lint:
-    name: Components build and test
+    name: Components lint
     runs-on: ubuntu-latest
-    needs: [pre_check]
+    needs: pre_check
     if: ${{ needs.pre_check.outputs.should_skip_components != 'true' }}
     defaults: 
       run: 
@@ -64,6 +86,23 @@ jobs:
         working-directory: packages/components
     steps: 
     - uses: actions/checkout@v2
+    - name: Check javascript, typescript, and markdown lint
+      uses: creyD/prettier_action@v4.2
+      with:
+        dry: true
+        prettier_options: --check .
+
+  components-bundle-build:
+    name: Components bundle and build
+    runs-on: ubuntu-latest
+    needs: pre_check
+    if: ${{ (needs.pre_check.outputs.should_skip_components != 'true') || (needs.pre_check.outputs.should_skip_lang != '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 codebase in squiggle-lang
@@ -73,11 +112,28 @@ jobs:
     - name: Build storybook
       run: yarn build
 
+  website-lint:
+    name: Website lint
+    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: Check javascript, typescript, and markdown lint
+      uses: creyD/prettier_action@v4.2
+      with:
+        dry: true
+        prettier_options: --check .
+
   website-build:
     name: Website build
     runs-on: ubuntu-latest
     needs: pre_check
-    if: ${{ needs.pre_check.outputs.should_skip_website != 'true' }}
+    if: ${{ (needs.pre_check.outputs.should_skip_website != 'true') || (needs.pre_check.outputs.should_skip_lang != 'true')  || (needs.pre_check.outputs.should_skip_components != 'true') }} 
     defaults:
       run:
         shell: bash

.github/workflows/codeql-analysis.yml

@@ -15,12 +15,16 @@ on:
   push:
     branches: 
     - master
+    - production
     - staging
+    - develop
   pull_request:
     # The branches below must be a subset of the branches above
     branches: 
     - master
+    - production
     - staging
+    - develop
   schedule:
     - cron: '42 19 * * 0'
 

README.md

@@ -1,15 +1,18 @@
 # Squiggle
-![Packages check](https://github.com/QURIresearch/squiggle/actions/workflows/ci.yaml/badge.svg)
+[![Packages check](https://github.com/quantified-uncertainty/squiggle/actions/workflows/ci.yml/badge.svg)](https://github.com/quantified-uncertainty/squiggle/actions/workflows/ci.yml)
 [![npm version](https://badge.fury.io/js/@quri%2Fsquiggle-lang.svg)](https://www.npmjs.com/package/@quri/squiggle-lang)
 [![npm version](https://badge.fury.io/js/@quri%2Fsquiggle-components.svg)](https://www.npmjs.com/package/@quri/squiggle-components)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://github.com/quantified-uncertainty/squiggle/blob/develop/LICENSE)
  
 This is an experimental DSL/language for making probabilistic estimates. The full story can be found [here](https://www.lesswrong.com/s/rDe8QE5NvXcZYzgZ3). 
 
 ## Our deployments
 
-- **website/docs prod**: https://squiggle-language.com
+- **website/docs prod**: https://squiggle-language.com [![Netlify Status](https://api.netlify.com/api/v1/badges/2139af5c-671d-473d-a9f6-66c96077d8a1/deploy-status)](https://app.netlify.com/sites/squiggle-documentation/deploys)
-- **website/docs staging**: https://staging--squiggle-documentation.netlify.app/
+- **website/docs staging**: https://develop--squiggle-documentation.netlify.app/
-- **old playground**: https://playground.squiggle-language.com
+- **components storybook prod**: https://squiggle-components.netlify.app/ [![Netlify Status](https://api.netlify.com/api/v1/badges/b7f724aa-6b20-4d0e-bf86-3fcd1a3e9a70/deploy-status)](https://app.netlify.com/sites/squiggle-components/deploys) 
+- **components storybook staging**: https://develop--squiggle-components.netlify.app/ 
+- **legacy (2020) playground**: https://playground.squiggle-language.com  
 
 ## Packages
 This monorepo has several packages that can be used for various purposes. All 

package.json

@@ -4,6 +4,9 @@
   "scripts": {
     "nodeclean": "rm -r node_modules && rm -r packages/*/node_modules"
   },
+  "devDependencies": {
+    "prettier": "^2.6.2"
+  },
   "workspaces": [
     "packages/*"
   ],

packages/components/package.json

@@ -4,7 +4,7 @@
   "dependencies": {
     "@quri/squiggle-lang": "0.2.2",
     "@testing-library/jest-dom": "^5.16.4",
-    "@testing-library/react": "^13.0.0",
+    "@testing-library/react": "^13.0.1",
     "@testing-library/user-event": "^14.0.4",
     "@types/jest": "^27.4.0",
     "@types/lodash": "^4.14.181",
@@ -32,7 +32,9 @@
     "start": "cross-env REACT_APP_FAST_REFRESH=false && start-storybook -p 6006 -s public",
     "build": "tsc -b && build-storybook -s public",
     "bundle": "webpack",
-    "all": "yarn bundle && yarn build"
+    "all": "yarn bundle && yarn build", 
+    "lint": "prettier --check .", 
+    "format": "prettier --write ."
   },
   "eslintConfig": {
     "extends": [
@@ -76,7 +78,6 @@
     "@storybook/preset-create-react-app": "^4.1.0",
     "@storybook/react": "^6.4.20",
     "@types/webpack": "^4.41.32",
-    "prettier": "^2.6.2",
     "react-codejar": "^1.1.2",
     "ts-loader": "^9.2.8",
     "webpack": "^5.72.0",

packages/squiggle-lang/lint.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Hat tip to @dfalling
+# https://forum.rescript-lang.org/t/rescript-9-1-how-can-we-format-to-standard-out/1590/2?u=quinn-dougherty
+
+errors=false
+
+files=`ls src/rescript/**/**/*.res src/rescript/**/*.res src/rescript/*.res`
+for file in $files
+do
+  current=`cat $file`
+  linted=`echo "${current}" | rescript format -stdin .res`
+  diff=`diff <(echo $current) <(echo $linted)`
+
+  if [ ${#diff} -gt 0 ]
+  then
+    echo "ERROR: $file doesn't pass lint"
+    errors=true
+  fi
+done
+
+files=`ls src/rescript/**/**/*.resi src/rescript/**/*.resi`  # src/rescript/*/resi
+for file in $files
+do
+  current=`cat $file`
+  linted=`echo "${current}" | rescript format -stdin .resi`
+  diff=`diff <(echo $current) <(echo $linted)`
+  if [ ${#diff} -gt 0 ]
+  then 
+    echo "ERROR: $file doesn't pass lint"
+    errors=true
+  fi
+done
+
+
+if $errors
+then
+  exit 1
+else
+  echo "All files pass lint"
+fi

packages/squiggle-lang/package.json

@@ -11,7 +11,10 @@
     "test": "jest",
     "test:watch": "jest --watchAll",
     "coverage": "rm -f *.coverage; yarn clean; BISECT_ENABLE=yes yarn build; yarn test; bisect-ppx-report html",
-    "reducer:format": "find src/rescript/Reducer src/rescript/ReducerInterface -type f \\( -name '*.res' -o -name '*.resi' \\) -exec sh -c 'bsc -format {} | sponge {}'  \\;",
+    "lint:rescript": "./lint.sh",
+    "lint:prettier": "prettier --check .",
+    "lint": "yarn lint:rescript && yarn lint:prettier", 
+    "format": "rescript format -all && prettier --write .", 
     "all": "yarn build && yarn bundle && yarn test"
   },
   "keywords": [

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

@@ -213,19 +213,20 @@ module SamplingDistribution = {
     let i1 = renderIfIsNotSamplingDistribution(evaluationParams, t1)
     let i2 = renderIfIsNotSamplingDistribution(evaluationParams, t2)
     E.R.merge(i1, i2) |> E.R.bind(_, ((a, b)) => {
-      let samples = getCombinationSamples(
+      let samples =
+        getCombinationSamples(
           evaluationParams.samplingInputs.sampleCount,
           algebraicOp,
           a,
           b,
         ) |> E.O.toResult("Could not get samples")
 
-      let sampleSetDist = samples -> E.R.bind(SampleSetDist.make)
+      let sampleSetDist = samples->E.R.bind(SampleSetDist.make)
 
       let pointSetDist =
-        sampleSetDist
+        sampleSetDist->E.R.bind(r =>
-        -> E.R.bind(r =>
+          SampleSetDist.toPointSetDist(~samplingInputs=evaluationParams.samplingInputs, ~samples=r)
-          SampleSetDist.toPointSetDist(~samplingInputs=evaluationParams.samplingInputs, ~samples=r));
+        )
       pointSetDist |> E.R.fmap(r => #Normalize(#RenderedDist(r)))
     })
   }

packages/squiggle-lang/src/rescript/OldInterpreter/DistPlus.res

@@ -1,116 +1,87 @@
-open PointSetTypes;
+open PointSetTypes
 
 @genType
-type t = PointSetTypes.distPlus;
+type t = PointSetTypes.distPlus
 
-let pointSetDistIntegral = pointSetDist => PointSetDist.T.Integral.get(pointSetDist);
+let pointSetDistIntegral = pointSetDist => PointSetDist.T.Integral.get(pointSetDist)
-let make =
+let make = (~pointSetDist, ~squiggleString, ()): t => {
-    (
+  let integral = pointSetDistIntegral(pointSetDist)
-      ~pointSetDist,
+  {pointSetDist: pointSetDist, integralCache: integral, squiggleString: squiggleString}
-      ~squiggleString,
+}
-      (),
-    )
-    : t => {
-  let integral = pointSetDistIntegral(pointSetDist);
-  {pointSetDist, integralCache: integral, squiggleString};
-};
 
-let update =
+let update = (~pointSetDist=?, ~integralCache=?, ~squiggleString=?, t: t) => {
-    (
-      ~pointSetDist=?,
-      ~integralCache=?,
-      ~squiggleString=?,
-      t: t,
-    ) => {
   pointSetDist: E.O.default(t.pointSetDist, pointSetDist),
   integralCache: E.O.default(t.integralCache, integralCache),
   squiggleString: E.O.default(t.squiggleString, squiggleString),
-};
+}
 
 let updateShape = (pointSetDist, t) => {
-  let integralCache = pointSetDistIntegral(pointSetDist);
+  let integralCache = pointSetDistIntegral(pointSetDist)
-  update(~pointSetDist, ~integralCache, t);
+  update(~pointSetDist, ~integralCache, t)
-};
+}
 
-let toPointSetDist = ({pointSetDist, _}: t) => pointSetDist;
+let toPointSetDist = ({pointSetDist, _}: t) => pointSetDist
 
-let pointSetDistFn = (fn, {pointSetDist}: t) => fn(pointSetDist);
+let pointSetDistFn = (fn, {pointSetDist}: t) => fn(pointSetDist)
 
-module T =
+module T = Distributions.Dist({
-  Distributions.Dist({
+  type t = PointSetTypes.distPlus
-    type t = PointSetTypes.distPlus;
+  type integral = PointSetTypes.distPlus
-    type integral = PointSetTypes.distPlus;
+  let toPointSetDist = toPointSetDist
-    let toPointSetDist = toPointSetDist;
+  let toContinuous = pointSetDistFn(PointSetDist.T.toContinuous)
-    let toContinuous = pointSetDistFn(PointSetDist.T.toContinuous);
+  let toDiscrete = pointSetDistFn(PointSetDist.T.toDiscrete)
-    let toDiscrete = pointSetDistFn(PointSetDist.T.toDiscrete);
 
   let normalize = (t: t): t => {
-      let normalizedShape = t |> toPointSetDist |> PointSetDist.T.normalize;
+    let normalizedShape = t |> toPointSetDist |> PointSetDist.T.normalize
-      t |> updateShape(normalizedShape);
+    t |> updateShape(normalizedShape)
-    };
+  }
 
   let truncate = (leftCutoff, rightCutoff, t: t): t => {
-      let truncatedShape =
+    let truncatedShape = t |> toPointSetDist |> PointSetDist.T.truncate(leftCutoff, rightCutoff)
-        t
-        |> toPointSetDist
-        |> PointSetDist.T.truncate(leftCutoff, rightCutoff);
 
-      t |> updateShape(truncatedShape);
+    t |> updateShape(truncatedShape)
-    };
+  }
 
-    let xToY = (f, t: t) =>
+  let xToY = (f, t: t) => t |> toPointSetDist |> PointSetDist.T.xToY(f)
-      t
-      |> toPointSetDist
-      |> PointSetDist.T.xToY(f);
 
-    let minX = pointSetDistFn(PointSetDist.T.minX);
+  let minX = pointSetDistFn(PointSetDist.T.minX)
-    let maxX = pointSetDistFn(PointSetDist.T.maxX);
+  let maxX = pointSetDistFn(PointSetDist.T.maxX)
-    let toDiscreteProbabilityMassFraction =
+  let toDiscreteProbabilityMassFraction = pointSetDistFn(
-      pointSetDistFn(PointSetDist.T.toDiscreteProbabilityMassFraction);
+    PointSetDist.T.toDiscreteProbabilityMassFraction,
+  )
 
   // This bit is kind of awkward, could probably use rethinking.
-    let integral = (t: t) =>
+  let integral = (t: t) => updateShape(Continuous(t.integralCache), t)
-      updateShape(Continuous(t.integralCache), t);
 
   let updateIntegralCache = (integralCache: option<PointSetTypes.continuousShape>, t) =>
-      update(~integralCache=E.O.default(t.integralCache, integralCache), t);
+    update(~integralCache=E.O.default(t.integralCache, integralCache), t)
 
-    let downsample = (i, t): t =>
+  let downsample = (i, t): t => updateShape(t |> toPointSetDist |> PointSetDist.T.downsample(i), t)
-      updateShape(t |> toPointSetDist |> PointSetDist.T.downsample(i), t);
   // todo: adjust for limit, maybe?
-    let mapY =
+  let mapY = (
-        (
     ~integralSumCacheFn=previousIntegralSum => None,
     ~integralCacheFn=previousIntegralCache => None,
     ~fn,
     {pointSetDist, _} as t: t,
-        )
+  ): t => PointSetDist.T.mapY(~integralSumCacheFn, ~fn, pointSetDist) |> updateShape(_, t)
-        : t =>
-      PointSetDist.T.mapY(~integralSumCacheFn, ~fn, pointSetDist)
-      |> updateShape(_, t);
 
   // get the total of everything
   let integralEndY = (t: t) => {
-      PointSetDist.T.Integral.sum(
+    PointSetDist.T.Integral.sum(toPointSetDist(t))
-        toPointSetDist(t),
+  }
-      );
-    };
 
   //   TODO: Fix this below, obviously. Adjust for limits
   let integralXtoY = (f, t: t) => {
-      PointSetDist.T.Integral.xToY(
+    PointSetDist.T.Integral.xToY(f, toPointSetDist(t))
-        f,
+  }
-        toPointSetDist(t),
-      )
-    };
 
   // TODO: This part is broken when there is a limit, if this is supposed to be taken into account.
   let integralYtoX = (f, t: t) => {
-      PointSetDist.T.Integral.yToX(f, toPointSetDist(t));
+    PointSetDist.T.Integral.yToX(f, toPointSetDist(t))
-    };
+  }
 
   let mean = (t: t) => {
-      PointSetDist.T.mean(t.pointSetDist);
+    PointSetDist.T.mean(t.pointSetDist)
-    };
+  }
-    let variance = (t: t) => PointSetDist.T.variance(t.pointSetDist);
+  let variance = (t: t) => PointSetDist.T.variance(t.pointSetDist)
-  });
+})

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

@@ -121,17 +121,14 @@ module MathAdtToDistDst = {
       | (_, _, Ok(mu), Ok(sigma)) => Ok(#FunctionCall("lognormal", [mu, sigma]))
       | _ => Error("Lognormal distribution needs either mean and stdev or mu and sigma")
       }
-    | _ =>
+    | _ => parseArgs() |> E.R.fmap((args: array<ASTTypes.node>) => #FunctionCall("lognormal", args))
-      parseArgs() |> E.R.fmap((args: array<ASTTypes.node>) =>
-        #FunctionCall("lognormal", args)
-      )
     }
 
   //  Error("Dotwise exponentiation needs two operands")
-  let operationParser = (
+  let operationParser = (name: string, args: result<array<ASTTypes.node>, string>): result<
-    name: string,
+    ASTTypes.node,
-    args: result<array<ASTTypes.node>, string>,
+    string,
-  ): result<ASTTypes.node, string> => {
+  > => {
     let toOkAlgebraic = r => Ok(#AlgebraicCombination(r))
     let toOkPointwise = r => Ok(#PointwiseCombination(r))
     let toOkTruncate = r => Ok(#Truncate(r))
@@ -169,10 +166,7 @@ module MathAdtToDistDst = {
   }
 
   let functionParser = (
-    nodeParser: MathJsonToMathJsAdt.arg => Belt.Result.t<
+    nodeParser: MathJsonToMathJsAdt.arg => Belt.Result.t<ASTTypes.node, string>,
-      ASTTypes.node,
-      string,
-    >,
     name: string,
     args: array<MathJsonToMathJsAdt.arg>,
   ): result<ASTTypes.node, string> => {
@@ -224,17 +218,11 @@ module MathAdtToDistDst = {
         )
         Ok(hash)
       }
-    | name =>
+    | name => parseArgs() |> E.R.fmap((args: array<ASTTypes.node>) => #FunctionCall(name, args))
-      parseArgs() |> E.R.fmap((args: array<ASTTypes.node>) =>
-        #FunctionCall(name, args)
-      )
     }
   }
 
-  let rec nodeParser: MathJsonToMathJsAdt.arg => result<
+  let rec nodeParser: MathJsonToMathJsAdt.arg => result<ASTTypes.node, string> = x =>
-    ASTTypes.node,
-    string,
-  > = x =>
     switch x {
     | Value(f) => Ok(#SymbolicDist(#Float(f)))
     | Symbol(sym) => Ok(#Symbol(sym))
@@ -267,8 +255,7 @@ module MathAdtToDistDst = {
       blocks |> E.A.fmap(b => topLevel(b)) |> E.A.R.firstErrorOrOpen |> E.R.fmap(E.A.concatMany)
     }
 
-  let run = (r): result<ASTTypes.program, string> =>
+  let run = (r): result<ASTTypes.program, string> => r |> MathAdtCleaner.run |> topLevel
-    r |> MathAdtCleaner.run |> topLevel
 }
 
 /* The MathJs parser doesn't support '.+' syntax, but we want it because it

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

@@ -39,17 +39,16 @@ module Inputs = {
 type exportDistribution = [
   | #DistPlus(DistPlus.t)
   | #Float(float)
-  | #Function((float) => Belt.Result.t<DistPlus.t,string>)
+  | #Function(float => Belt.Result.t<DistPlus.t, string>)
 ]
 
 type exportEnv = array<(string, ASTTypes.node)>
 
 type exportType = {
-  environment : exportEnv,
+  environment: exportEnv,
-  exports: array<exportDistribution>
+  exports: array<exportDistribution>,
 }
 
-
 module Internals = {
   let addVariable = (
     {samplingInputs, squiggleString, environment}: Inputs.inputs,
@@ -58,9 +57,7 @@ module Internals = {
   ): Inputs.inputs => {
     samplingInputs: samplingInputs,
     squiggleString: squiggleString,
-    environment: ASTTypes.Environment.update(environment, str, _ => Some(
+    environment: ASTTypes.Environment.update(environment, str, _ => Some(node)),
-      node,
-    )),
   }
 
   type outputs = {
@@ -76,8 +73,7 @@ module Internals = {
     pointSetDistLength: inputs.samplingInputs.pointDistLength |> E.O.default(10000),
   }
 
-  let runNode = (inputs, node) =>
+  let runNode = (inputs, node) => AST.toLeaf(makeInputs(inputs), inputs.environment, node)
-    AST.toLeaf(makeInputs(inputs), inputs.environment, node)
 
   let renderIfNeeded = (inputs: Inputs.inputs, node: ASTTypes.node): result<
     ASTTypes.node,
@@ -106,16 +102,14 @@ module Internals = {
   let outputToDistPlus = (inputs: Inputs.inputs, pointSetDist: PointSetTypes.pointSetDist) =>
     DistPlus.make(~pointSetDist, ~squiggleString=Some(inputs.squiggleString), ())
 
-  let rec returnDist = (functionInfo : (array<string>, ASTTypes.node), 
+  let rec returnDist = (
-                    inputs : Inputs.inputs,
+    functionInfo: (array<string>, ASTTypes.node),
-                    env : ASTTypes.environment) => {
+    inputs: Inputs.inputs,
-    (input : float) => {
+    env: ASTTypes.environment,
-      let foo: Inputs.inputs = {...inputs, environment: env};
+  ) => {
-      evaluateFunction(
+    (input: float) => {
-        foo,
+      let foo: Inputs.inputs = {...inputs, environment: env}
-        functionInfo,
+      evaluateFunction(foo, functionInfo, [#SymbolicDist(#Float(input))]) |> E.R.bind(_, a =>
-        [#SymbolicDist(#Float(input))],
-      ) |> E.R.bind(_, a =>
         switch a {
         | #DistPlus(d) => Ok(DistPlus.T.normalize(d))
         | n =>
@@ -126,11 +120,10 @@ module Internals = {
     }
   }
   // TODO: Consider using ExpressionTypes.ExpressionTree.getFloat or similar in this function
-  and coersionToExportedTypes = (
+  and coersionToExportedTypes = (inputs, env: ASTTypes.environment, ex: ASTTypes.node): result<
-    inputs,
+    exportDistribution,
-    env: ASTTypes.environment,
+    string,
-    ex: ASTTypes.node,
+  > =>
-  ): result<exportDistribution, string> =>
     ex
     |> renderIfNeeded(inputs)
     |> E.R.bind(_, x =>
@@ -143,17 +136,8 @@ module Internals = {
       }
     )
 
-  and evaluateFunction = (
+  and evaluateFunction = (inputs: Inputs.inputs, fn: (array<string>, ASTTypes.node), fnInputs) => {
-    inputs: Inputs.inputs,
+    let output = AST.runFunction(makeInputs(inputs), inputs.environment, fnInputs, fn)
-    fn: (array<string>, ASTTypes.node),
-    fnInputs,
-  ) => {
-    let output = AST.runFunction(
-      makeInputs(inputs),
-      inputs.environment,
-      fnInputs,
-      fn,
-    )
     output |> E.R.bind(_, coersionToExportedTypes(inputs, inputs.environment))
   }
 
@@ -165,8 +149,7 @@ module Internals = {
       | #Assignment(name, node) =>
         ins := addVariable(ins.contents, name, node)
         None
-        | #Expression(node) =>
+      | #Expression(node) => Some(runNode(ins.contents, node))
-          Some(runNode(ins.contents, node))
       }
     )
     |> E.A.O.concatSomes
@@ -176,23 +159,22 @@ module Internals = {
       |> E.A.fmap(x => coersionToExportedTypes(inputs, ins.contents.environment, x))
       |> E.A.R.firstErrorOrOpen
     )
-      |> E.R.fmap(ex => 
+    |> E.R.fmap(ex => {
-          {
       environment: Belt.Map.String.toArray(ins.contents.environment),
-            exports: ex
+      exports: ex,
-          }
+    })
-        )
   }
 
   let inputsToLeaf = (inputs: Inputs.inputs) =>
     Parser.fromString(inputs.squiggleString) |> E.R.bind(_, g => runProgram(inputs, g))
-
 }
 
-
 @genType
-let runAll : (string, Inputs.SamplingInputs.t, exportEnv) => result<exportType,string> = 
+let runAll: (string, Inputs.SamplingInputs.t, exportEnv) => result<exportType, string> = (
-   (squiggleString, samplingInputs, environment) => {
+  squiggleString,
+  samplingInputs,
+  environment,
+) => {
   let inputs = Inputs.make(
     ~samplingInputs,
     ~squiggleString,

packages/website/package.json

@@ -6,7 +6,9 @@
     "start": "docusaurus start",
     "build": "docusaurus build",
     "clean": "docusaurus clear",
-    "all": "yarn build"
+    "all": "yarn build", 
+    "lint": "prettier --check .", 
+    "format": "prettier --write ."
   },
   "dependencies": {
     "@docusaurus/core": "2.0.0-beta.18",

yarn.lock

@@ -3629,14 +3629,14 @@
     lodash "^4.17.15"
     redent "^3.0.0"
 
-"@testing-library/react@^13.0.0":
+"@testing-library/react@^13.0.1":
-  version "13.0.0"
+  version "13.0.1"
-  resolved "https://registry.yarnpkg.com/@testing-library/react/-/react-13.0.0.tgz#8cdaf4667c6c2b082eb0513731551e9db784e8bc"
+  resolved "https://registry.yarnpkg.com/@testing-library/react/-/react-13.0.1.tgz#00d223e182923d341a9610590561fb9dd1324110"
-  integrity sha512-p0lYA1M7uoEmk2LnCbZLGmHJHyH59sAaZVXChTXlyhV/PRW9LoIh4mdf7tiXsO8BoNG+vN8UnFJff1hbZeXv+w==
+  integrity sha512-zeHx3PohYYp+4bTJwrixQY8zSBZjWUGwYc7OhD1EpWTHS92RleApLoP72NdwaWxOrM1P1Uezt3XvGf6t2XSWPQ==
   dependencies:
     "@babel/runtime" "^7.12.5"
     "@testing-library/dom" "^8.5.0"
-    "@types/react-dom" "*"
+    "@types/react-dom" "^18.0.0"
 
 "@testing-library/user-event@^14.0.4":
   version "14.0.4"
@@ -3985,7 +3985,7 @@
   resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.4.tgz#cd667bcfdd025213aafb7ca5915a932590acdcdc"
   integrity sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw==
 
-"@types/react-dom@*", "@types/react-dom@^18.0.0":
+"@types/react-dom@^18.0.0":
   version "18.0.0"
   resolved "https://registry.yarnpkg.com/@types/react-dom/-/react-dom-18.0.0.tgz#b13f8d098e4b0c45df4f1ed123833143b0c71141"
   integrity sha512-49897Y0UiCGmxZqpC8Blrf6meL8QUla6eb+BBhn69dTXlmuOlzkfr7HHY/O8J25e1lTUMs+YYxSlVDAaGHCOLg==
@@ -4025,7 +4025,7 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react@*":
+"@types/react@*", "@types/react@^16.9.19", "@types/react@^17.0.43", "@types/react@^18.0.1":
   version "17.0.44"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-17.0.44.tgz#c3714bd34dd551ab20b8015d9d0dbec812a51ec7"
   integrity sha512-Ye0nlw09GeMp2Suh8qoOv0odfgCoowfM/9MG6WeRD60Gq9wS90bdkdRtYbRkNhXOpG4H+YXGvj4wOWhAC0LJ1g==
@@ -4034,24 +4034,6 @@
     "@types/scheduler" "*"
     csstype "^3.0.2"
 
-"@types/react@^16.9.19":
-  version "16.14.24"
-  resolved "https://registry.yarnpkg.com/@types/react/-/react-16.14.24.tgz#f2c5e9fa78f83f769884b83defcf7924b9eb5c82"
-  integrity sha512-e7U2WC8XQP/xfR7bwhOhNFZKPTfW1ph+MiqtudKb8tSV8RyCsovQx2sNVtKoOryjxFKpHPPC/yNiGfdeVM5Gyw==
-  dependencies:
-    "@types/prop-types" "*"
-    "@types/scheduler" "*"
-    csstype "^3.0.2"
-
-"@types/react@^18.0.1":
-  version "18.0.1"
-  resolved "https://registry.yarnpkg.com/@types/react/-/react-18.0.1.tgz#1b2e02fb7613212518733946e49fb963dfc66e19"
-  integrity sha512-VnWlrVgG0dYt+NqlfMI0yUYb8Rdl4XUROyH+c6gq/iFCiZ805Vi//26UW38DHnxQkbDhnrIWTBiy6oKZqL11cw==
-  dependencies:
-    "@types/prop-types" "*"
-    "@types/scheduler" "*"
-    csstype "^3.0.2"
-
 "@types/resolve@1.17.1":
   version "1.17.1"
   resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-1.17.1.tgz#3afd6ad8967c77e4376c598a82ddd58f46ec45d6"