up n_m

node_modules/image-size/dist/detector.js

@@ -0,0 +1,30 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.detector = void 0;
+const index_1 = require("./types/index");
+const keys = Object.keys(index_1.typeHandlers);
+// This map helps avoid validating for every single image type
+const firstBytes = {
+    0x38: 'psd',
+    0x42: 'bmp',
+    0x44: 'dds',
+    0x47: 'gif',
+    0x49: 'tiff',
+    0x4d: 'tiff',
+    0x52: 'webp',
+    0x69: 'icns',
+    0x89: 'png',
+    0xff: 'jpg',
+};
+function detector(input) {
+    const byte = input[0];
+    if (byte in firstBytes) {
+        const type = firstBytes[byte];
+        if (type && index_1.typeHandlers[type].validate(input)) {
+            return type;
+        }
+    }
+    const finder = (key) => index_1.typeHandlers[key].validate(input);
+    return keys.find(finder);
+}
+exports.detector = detector;