feat: env vars to adjust warning behaviour (#2)

NUXT_ENV_DEVALUE_LOG_LEVEL to configure log level e.g. to silence warnings
NUXT_ENV_DEVALUE_LOG_LIMIT to configure max number of warnings per devalue call

package.json

@@ -14,16 +14,17 @@
     "consola": "^1.4.3"
   },
   "devDependencies": {
-    "@types/mocha": "^2.2.44",
-    "@types/node": "^8.0.53",
-    "glob": "^7.1.2",
-    "mocha": "^4.0.1",
-    "rollup": "^0.52.0",
-    "rollup-plugin-typescript": "^0.8.1",
+    "@types/mocha": "^5.2.5",
+    "@types/node": "^10.11.7",
+    "glob": "^7.1.3",
+    "mocha": "^5.2.0",
+    "rollup": "^0.66.6",
+    "rollup-plugin-typescript": "^1.0.0",
     "rollup-plugin-virtual": "^1.0.1",
     "sander": "^0.6.0",
-    "ts-node": "^3.3.0",
-    "typescript": "^2.6.2"
+    "ts-node": "^7.0.1",
+    "tslib": "^1.9.3",
+    "typescript": "^3.1.3"
   },
   "scripts": {
     "build-declarations": "tsc -d && node scripts/move-type-declarations.js",

rollup.config.js

@@ -4,13 +4,12 @@ import pkg from './package.json';
 export default {
 	input: 'src/index.ts',
 	output: [
-		{ file: pkg.main, format: 'umd' },
+		{ file: pkg.main, format: 'umd', name: 'devalue' },
 		{ file: pkg.module, format: 'es' }
 	],
-	name: 'devalue',
 	plugins: [
 		typescript({
 			typescript: require('typescript')
 		})
 	]
-};
+};

src/index.ts

@@ -4,12 +4,23 @@ const reserved = /^(?:do|if|in|for|int|let|new|try|var|byte|case|char|else|enum|
 const unsafe = /[<>\/\u2028\u2029]/g;
 const escaped: Record<string, string> = { '<': '\\u003C', '>' : '\\u003E', '/': '\\u002F', '\u2028': '\\u2028', '\u2029': '\\u2029' };
 const objectProtoOwnPropertyNames = Object.getOwnPropertyNames(Object.prototype).sort().join('\0');
+// workaround to disable warnings, see https://github.com/nuxt/nuxt.js/issues/4026 for details
+const defaultLogLevel = process.env.NUXT_ENV_DEVALUE_LOG_LEVEL || 'warn';
+const logLimit = parseInt(process.env.NUXT_ENV_DEVALUE_LOG_LIMIT) || 99;
 
 
-export default function devalue(value: any, level = 'warn') {
+export default function devalue(value: any, level = defaultLogLevel) {
 	const counts = new Map();
 
-	let n = 0;
+	let logNum = 0;
+
+	function log(message: string) {
+		if (logNum < logLimit) {
+			consola[level](message);
+			logNum+=1
+		}
+	}
+
 
 	function walk(thing: any) {
 		if (typeof thing === 'function') {
@@ -53,10 +64,10 @@ export default function devalue(value: any, level = 'warn') {
 						Object.getOwnPropertyNames(proto).sort().join('\0') !== objectProtoOwnPropertyNames
 					) {
 						if (typeof thing.toJSON !== "function") {
-							consola[level](`Cannot stringify arbitrary non-POJOs ${thing.constructor.name}`);
+							log(`Cannot stringify arbitrary non-POJOs ${thing.constructor.name}`);
 						}
 					} else if (Object.getOwnPropertySymbols(thing).length > 0) {
-						consola[level](`Cannot stringify POJOs with symbolic keys ${Object.getOwnPropertySymbols(thing).map(symbol => symbol.toString())}`);
+						log(`Cannot stringify POJOs with symbolic keys ${Object.getOwnPropertySymbols(thing).map(symbol => symbol.toString())}`);
 					} else {
 						Object.keys(thing).forEach(key => walk(thing[key]));
 					}