Merge pull request #14 from stefanpenner/typescript

typescript

.gitignore

@@ -1 +1,4 @@
 node_modules/
+*.js
+*.js.map
+*.d.ts

.npmignore

@@ -0,0 +1 @@
+!**.js

.travis.yml

@@ -4,13 +4,12 @@ node_js:
   - "6"
   - "8"
   - "10"
+  - "10"
 
-script: npm test
-before_install:
-  - npm config set spin false
+cache:
+  yarn: true
 
-install:
-  - node --version
-  - npm --version
-  - git --version
-  - npm install --no-optional
+before_install:
+  - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.13.0
+  - export PATH="$HOME/.yarn/bin:$PATH"
+  - yarn --version

appveyor.yml

@@ -10,23 +10,25 @@ environment:
     - nodejs_version: "6"
     - nodejs_version: "8"
     - nodejs_version: "10"
+    - nodejs_version: "11"
 
 # Install scripts. (runs after repo cloning)
 install:
   - git rev-parse HEAD
   # Get the latest stable version of Node 0.STABLE.latest
   - ps: Install-Product node $env:nodejs_version
-  # Typical npm stuff.
-  - md C:\nc
-  - npm config set cache C:\nc
-  - npm version
-  - npm install
+  - choco install yarn --version=1.13.0
+  - appveyor-retry yarn
+  - appveyor-retry yarn add mocha-appveyor-reporter # must be installed locally.
+
+cache:
+  - '%LOCALAPPDATA%\Yarn'
 
 # Post-install test scripts.
 test_script:
   # Output useful info for debugging.
-  - npm version
-  - cmd: npm test
+  - git rev-parse HEAD
+  - cmd: yarn run test
 
 # Don't actually build.
 build: off

index.d.ts

@@ -0,0 +1,2 @@
+declare const _default: (position?: number) => any;
+export = _default;

index.js → index.ts

@@ -1,24 +1,23 @@
-'use strict';
-
 // Call this function in a another function to find out the file from
 // which that function was called from. (Inspects the v8 stack trace)
 //
 // Inspired by http://stackoverflow.com/questions/13227489
 
-module.exports = function getCallerFile(position = 2) {
-
+export = function getCallerFile(position = 2) {
   if (position >= Error.stackTraceLimit) {
     throw new TypeError('getCallerFile(position) requires position be less then Error.stackTraceLimit but position was: `' + position + '` and Error.stackTraceLimit was: `' + Error.stackTraceLimit + '`');
   }
 
   const oldPrepareStackTrace = Error.prepareStackTrace;
-  Error.prepareStackTrace = (err, stack)  => stack;
+  Error.prepareStackTrace = (_, stack)  => stack;
   const stack = new Error().stack;
   Error.prepareStackTrace = oldPrepareStackTrace;
 
 
-  // stack[0] holds this file
-  // stack[1] holds where this function was called
-  // stack[2] holds the file we're interested in
-  return stack[position] ? stack[position].getFileName() : undefined;
+  if (stack !== null && typeof stack === 'object') {
+    // stack[0] holds this file
+    // stack[1] holds where this function was called
+    // stack[2] holds the file we're interested in
+    return stack[position] ? (stack[position] as any).getFileName() : undefined;
+  }
 };

package.json

@@ -7,9 +7,12 @@
     "test": "tests"
   },
   "files": [
-    "index.js"
+    "index.js",
+    "index.js.map",
+    "index.d.ts"
   ],
   "scripts": {
+    "prepare": "tsc",
     "test": "mocha test",
     "test:debug": "mocha test"
   },
@@ -24,11 +27,18 @@
   },
   "homepage": "https://github.com/stefanpenner/get-caller-file#readme",
   "devDependencies": {
+    "@types/chai": "^4.1.7",
+    "@types/ensure-posix-path": "^1.0.0",
+    "@types/mocha": "^5.2.6",
     "chai": "^4.1.2",
     "ensure-posix-path": "^1.0.1",
-    "mocha": "^5.2.0"
+    "mocha": "^5.2.0",
+    "typescript": "^3.3.3333"
   },
   "engines": {
     "node": "6.* || 8.* || >= 10.*"
+  },
+  "dependencies": {
+    "@types/node": "^11.10.5"
   }
 }

test.d.ts

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

test.js → test.ts

@@ -1,10 +1,13 @@
 'use strict';
 
-const getCallerFile = require('./');
-const expect = require('chai').expect;
+import getCallerFile = require('./');
+import chai = require('chai');
+import ensurePosix = require('ensure-posix-path');
+
+const expect = chai.expect;
+
 const foo = require('./fixtures/foo');
 const bar = require('./fixtures/bar');
-const ensurePosix = require('ensure-posix-path');
 
 describe('getCallerFile', function() {
   const originalStackTraceLimit = Error.stackTraceLimit;

tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "declaration": true,
+    "typeRoots": ["node_modules/@types"],
+    "sourceMap": true,
+    "strict": true
+  }
+}

yarn.lock

@@ -2,6 +2,26 @@
 # yarn lockfile v1
 
 
+"@types/chai@^4.1.7":
+  version "4.1.7"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.1.7.tgz#1b8e33b61a8c09cbe1f85133071baa0dbf9fa71a"
+  integrity sha512-2Y8uPt0/jwjhQ6EiluT0XCri1Dbplr0ZxfFXUz+ye13gaqE8u5gL5ppao1JrUYr9cIip5S6MvQzBS7Kke7U9VA==
+
+"@types/ensure-posix-path@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@types/ensure-posix-path/-/ensure-posix-path-1.0.0.tgz#4942811afa582b6920c3bcd1361e48c25c4f4cdc"
+  integrity sha512-aShF4MyAr6mnok9ofP21H5myNfAXlX1BB0QoysrIg/NH/UOHpH5IoETUyK+ui7Oc1IxaiH20Kpwfx9NpwUnHaw==
+
+"@types/mocha@^5.2.6":
+  version "5.2.6"
+  resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-5.2.6.tgz#b8622d50557dd155e9f2f634b7d68fd38de5e94b"
+  integrity sha512-1axi39YdtBI7z957vdqXI4Ac25e7YihYQtJa+Clnxg1zTJEaIRbndt71O3sP4GAMgiAm0pY26/b9BrY4MR/PMw==
+
+"@types/node@^11.10.5":
+  version "11.10.5"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.10.5.tgz#fbaca34086bdc118011e1f05c47688d432f2d571"
+  integrity sha512-DuIRlQbX4K+d5I+GMnv+UfnGh+ist0RdlvOp+JZ7ePJ6KQONCFQv/gKYSU1ZzbVdFSUCKZOltjmpFAGGv5MdYA==
+
 assertion-error@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
@@ -170,6 +190,11 @@ type-detect@^4.0.0:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
 
+typescript@^3.3.3333:
+  version "3.3.3333"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.3333.tgz#171b2c5af66c59e9431199117a3bcadc66fdcfd6"
+  integrity sha512-JjSKsAfuHBE/fB2oZ8NxtRTk5iGcg6hkYXMnZ3Wc+b2RSqejEqTaem11mHASMnFilHrax3sLK0GDzcJrekZYLw==
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"