replaces deprecated tslint with eslint

.eslintrc.json

@@ -0,0 +1,29 @@
+{
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/eslint-recommended"
+    ],
+    "globals": {
+        "Atomics": "readonly",
+        "SharedArrayBuffer": "readonly"
+    },
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 2018,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "eqeqeq": "error",
+        "quotes": [2, "single", { "avoidEscape": true, "allowTemplateLiterals": true }],
+        "curly": "warn",
+        "no-empty": "off",
+        "no-unused-vars": "off"
+    }
+}

.vscode/extensions.json

@@ -2,6 +2,6 @@
 	// See http://go.microsoft.com/fwlink/?LinkId=827846
 	// for the documentation about the extensions.json format
 	"recommendations": [
-		"ms-vscode.vscode-typescript-tslint-plugin"
+		"dbaeumer.vscode-eslint"
 	]
 }

package.json

@@ -442,19 +442,22 @@
   "scripts": {
     "vscode:prepublish": "npm run compile",
     "compile": "tsc --forceConsistentCasingInFileNames -p ./",
+    "lint": "eslint src --ext ts",
     "watch": "tsc -watch -p ./",
-    "pretest": "npm run compile",
+    "pretest": "npm run compile && npm run lint",
     "test": "node ./out/test/runTest.js"
   },
   "devDependencies": {
     "@types/glob": "^7.1.1",
-    "@types/mocha": "^5.2.7",
+    "@types/mocha": "^7.0.1",
     "@types/node": "^12.11.7",
-    "@types/vscode": "^1.40.0",
-    "glob": "^7.1.5",
-    "mocha": "^6.2.2",
-    "typescript": "^3.7.3",
-    "tslint": "^5.20.1",
-    "vscode-test": "^1.2.2"
+    "@types/vscode": "^1.43.0",
+    "eslint": "^6.8.0",
+    "@typescript-eslint/parser": "^2.18.0",
+    "@typescript-eslint/eslint-plugin": "^2.18.0",
+    "glob": "^7.1.6",
+    "mocha": "^7.0.1",
+    "typescript": "^3.7.5",
+    "vscode-test": "^1.3.0"
   }
 }

tslint.json

@@ -1,17 +0,0 @@
-{
-  "rules": {
-    "no-string-throw": true,
-    "no-unused-expression": true,
-    "no-duplicate-variable": true,
-    "curly": true,
-    "class-name": true,
-    "semicolon": [
-      true,
-      "always"
-    ],
-    "triple-equals": true,
-    "quotemark": [true, "single"],
-    "prefer-const": true
-  },
-  "defaultSeverity": "warning"
-}