Add downlevel-dts (#368)

.gitignore

@@ -2,6 +2,7 @@ scratchpad/build/
 apps/node-build/
 node_modules/
 coverage/
+ts3.4/
 build/
 dist/
 cjs/

package.json

@@ -25,7 +25,7 @@
     "release:prep": "yarn clean && yarn lint && yarn typecheck && yarn test && yarn build",
     "release:tag": "TAG=\"v$(yarn --silent get:version)\" && git tag $TAG && git push origin $TAG",
     "get:version": "node --eval 'console.log(require(`./package.json`).version)'",
-    "clean": "rimraf build cjs dist es scratchpad/build coverage tsBuildInfo.json isolate*.log flamegraph.html out.pdf",
+    "clean": "rimraf ts3.4 build cjs dist es scratchpad/build coverage tsBuildInfo.json isolate*.log flamegraph.html out.pdf",
     "typecheck": "tsc --noEmit",
     "test": "jest --config jest.json --runInBand",
     "testw": "jest --config jest.json --watch --notify",
@@ -34,11 +34,12 @@
     "lint:tslint:src": "tslint --project tsconfig.json --fix",
     "lint:tslint:tests": "tslint --project tests/tsconfig.json --fix",
     "lint:prettier": "prettier --write \"./{src,tests}/**/*.{ts,js,json}\" --loglevel error",
-    "build": "yarn build:cjs && yarn build:es && yarn build:umd && yarn build:umd:min",
+    "build": "yarn build:cjs && yarn build:es && yarn build:umd && yarn build:umd:min && yarn build:downlevel-dts",
     "build:cjs": "ttsc --module commonjs --outDir cjs",
     "build:es": "ttsc --module ES2015 --outDir es",
     "build:umd": "rollup --config rollup.config.js --file dist/pdf-lib.js",
     "build:umd:min": "rollup --config rollup.config.js --file dist/pdf-lib.min.js --environment MINIFY",
+    "build:downlevel-dts": "rimraf ts3.4 && yarn downlevel-dts . ts3.4 && rimraf ts3.4/scratchpad",
     "scratchpad:start": "ttsc --build scratchpad/tsconfig.json --watch",
     "scratchpad:run": "node scratchpad/build/scratchpad/index.js",
     "scratchpad:flame": "rimraf isolate*.log && node --prof scratchpad/build/scratchpad/index.js && node --prof-process --preprocess -j isolate*.log | flamebearer",
@@ -49,15 +50,23 @@
     "apps:rn:android": "yarn apps:rn:emulator & cd apps/rn && yarn add ./../.. --force && react-native run-android",
     "apps:rn:emulator": "emulator -avd \"$(emulator -list-avds | head -n 1)\" & bash -c 'sleep 5 && adb reverse tcp:8080 tcp:8080 && adb reverse tcp:8081 tcp:8081'"
   },
-  "types": "cjs/index.d.ts",
   "main": "cjs/index.js",
   "module": "es/index.js",
   "unpkg": "dist/pdf-lib.min.js",
+  "types": "cjs/index.d.ts",
+  "typesVersions": {
+    "<=3.5": {
+      "*": [
+        "ts3.4/*"
+      ]
+    }
+  },
   "files": [
     "cjs/",
     "dist/",
     "es/",
     "src/",
+    "ts3.4",
     "LICENSE.md",
     "package.json",
     "README.md",
@@ -78,6 +87,7 @@
     "@types/node-fetch": "^2.5.4",
     "@types/pako": "^1.0.1",
     "@zerollup/ts-transform-paths": "^1.7.9",
+    "downlevel-dts": "^0.4.0",
     "flamebearer": "^1.1.3",
     "http-server": "^0.12.0",
     "jest": "^24.9.0",

scratchpad/index.ts

@@ -1,61 +1,46 @@
 import fs from 'fs';
+import fetch from 'node-fetch';
 import { openPdf, Reader } from './open';
 
 import { PDFDocument } from 'src/index';
 
 (async () => {
-  // These should be Uint8Arrays or ArrayBuffers
-  // This data can be obtained in a number of different ways
-  // If your running in a Node environment, you could use fs.readFile()
-  // In the browser, you could make a fetch() call and use res.arrayBuffer()
-  const americanFlagPdfBytes = fs.readFileSync('assets/pdfs/american_flag.pdf');
-  const usConstitutionPdfBytes = fs.readFileSync(
-    'assets/pdfs/us_constitution.pdf',
+  const flagUrl = 'https://pdf-lib.js.org/assets/american_flag.pdf';
+  const constitutionUrl = 'https://pdf-lib.js.org/assets/us_constitution.pdf';
+
+  const flagPdfBytes = await fetch(flagUrl).then((res) => res.arrayBuffer());
+  const constitutionPdfBytes = await fetch(constitutionUrl).then((res) =>
+    res.arrayBuffer(),
   );
 
-  // Create a new PDFDocument
   const pdfDoc = await PDFDocument.create();
 
-  // Embed the American flag PDF bytes
-  const [americanFlag] = await pdfDoc.embedPdf(americanFlagPdfBytes);
-
-  // Load the U.S. constitution PDF bytes
-  const usConstitutionPdf = await PDFDocument.load(usConstitutionPdfBytes);
+  const [americanFlag] = await pdfDoc.embedPdf(flagPdfBytes);
+  const usConstitutionPdf = await PDFDocument.load(constitutionPdfBytes);
 
-  // Embed the second page of the constitution and clip the preamble
   const preamble = await pdfDoc.embedPage(usConstitutionPdf.getPages()[1], {
     left: 55,
     bottom: 485,
     right: 300,
     top: 575,
   });
 
-  // Get the width/height of the American flag PDF scaled down to 30% of
-  // its original size
   const americanFlagDims = americanFlag.scale(0.3);
-
-  // Get the width/height of the preamble clipping scaled up to 225% of
-  // its original size
   const preambleDims = preamble.scale(2.25);
 
-  // Add a blank page to the document
   const page = pdfDoc.addPage();
 
-  // Draw the American flag image in the center top of the page
   page.drawPage(americanFlag, {
     ...americanFlagDims,
     x: page.getWidth() / 2 - americanFlagDims.width / 2,
     y: page.getHeight() - americanFlagDims.height - 150,
   });
-
-  // Draw the preamble clipping in the center bottom of the page
   page.drawPage(preamble, {
     ...preambleDims,
     x: page.getWidth() / 2 - preambleDims.width / 2,
     y: page.getHeight() / 2 - preambleDims.height / 2 - 50,
   });
 
-  // Serialize the PDFDocument to bytes (a Uint8Array)
   const pdfBytes = await pdfDoc.save();
 
   // For example, `pdfBytes` can be:

yarn.lock

@@ -1132,6 +1132,14 @@ domexception@^1.0.1:
   dependencies:
     webidl-conversions "^4.0.2"
 
+downlevel-dts@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/downlevel-dts/-/downlevel-dts-0.4.0.tgz#43f9f649c8b137373d76b4ee396d5a0227c10ddb"
+  integrity sha512-nh5vM3n2pRhPwZqh0iWo5gpItPAYEGEWw9yd0YpI+lO60B7A3A6iJlxDbt7kKVNbqBXKsptL+jwE/Yg5Go66WQ==
+  dependencies:
+    shelljs "^0.8.3"
+    typescript "^3.8.0-dev.20200111"
+
 ecc-jsbn@~0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
@@ -1472,6 +1480,18 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
+glob@^7.0.0:
+  version "7.1.6"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
+  integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 glob@^7.1.1, glob@^7.1.2, glob@^7.1.3:
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.3.tgz#3960832d3f1574108342dafd3a67b332c0969df1"
@@ -1672,6 +1692,11 @@ ini@~1.3.0:
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
   integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
 
+interpret@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.2.0.tgz#d5061a6224be58e8083985f5014d844359576296"
+  integrity sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw==
+
 invariant@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
@@ -3116,6 +3141,13 @@ realpath-native@^1.1.0:
   dependencies:
     util.promisify "^1.0.0"
 
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  integrity sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=
+  dependencies:
+    resolve "^1.1.6"
+
 regex-not@^1.0.0, regex-not@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
@@ -3225,6 +3257,13 @@ resolve@1.x, resolve@^1.10.0, resolve@^1.3.2, resolve@^1.9.0:
   dependencies:
     path-parse "^1.0.6"
 
+resolve@^1.1.6:
+  version "1.15.1"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.15.1.tgz#27bdcdeffeaf2d6244b95bb0f9f4b4653451f3e8"
+  integrity sha512-84oo6ZTtoTUpjgNEr5SJyzQhzL72gaRodsSfyxC/AXRvwu0Yse9H8eF9IpGo7b8YetZhlI6v7ZQ6bKBFV/6S7w==
+  dependencies:
+    path-parse "^1.0.6"
+
 resolve@^1.11.0, resolve@^1.11.1:
   version "1.11.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.11.1.tgz#ea10d8110376982fef578df8fc30b9ac30a07a3e"
@@ -3386,6 +3425,15 @@ shebang-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
   integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
 
+shelljs@^0.8.3:
+  version "0.8.3"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.3.tgz#a7f3319520ebf09ee81275b2368adb286659b097"
+  integrity sha512-fc0BKlAWiLpwZljmOvAOTE/gXawtCoNrP5oaY7KIaQbbyHeQVg01pSEuEGvGh3HEdBU4baCD7wQBwADmM/7f7A==
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
 shellwords@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
@@ -3843,6 +3891,11 @@ typescript@^3.7.4:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.4.tgz#1743a5ec5fef6a1fa9f3e4708e33c81c73876c19"
   integrity sha512-A25xv5XCtarLwXpcDNZzCGvW2D1S3/bACratYBx2sax8PefsFhlYmkQicKHvpYflFS8if4zne5zT5kpJ7pzuvw==
 
+typescript@^3.8.0-dev.20200111:
+  version "3.8.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
+  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
+
 uglify-js@^3.1.4:
   version "3.7.3"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.7.3.tgz#f918fce9182f466d5140f24bb0ff35c2d32dcc6a"