WIP - add extractor, generate snippet_data

node_modules/babel-plugin-remove-graphql-queries/murmur.js

@@ -0,0 +1,61 @@
+"use strict";
+
+// murmurhash2 via https://gist.github.com/raycmorgan/588423
+module.exports = (str, seed) => {
+  let m = 0x5bd1e995;
+  let r = 24;
+  let h = seed ^ str.length;
+  let length = str.length;
+  let currentIndex = 0;
+
+  while (length >= 4) {
+    let k = UInt32(str, currentIndex);
+    k = Umul32(k, m);
+    k ^= k >>> r;
+    k = Umul32(k, m);
+    h = Umul32(h, m);
+    h ^= k;
+    currentIndex += 4;
+    length -= 4;
+  }
+
+  switch (length) {
+    case 3:
+      h ^= UInt16(str, currentIndex);
+      h ^= str.charCodeAt(currentIndex + 2) << 16;
+      h = Umul32(h, m);
+      break;
+
+    case 2:
+      h ^= UInt16(str, currentIndex);
+      h = Umul32(h, m);
+      break;
+
+    case 1:
+      h ^= str.charCodeAt(currentIndex);
+      h = Umul32(h, m);
+      break;
+  }
+
+  h ^= h >>> 13;
+  h = Umul32(h, m);
+  h ^= h >>> 15;
+  return h >>> 0;
+};
+
+function UInt32(str, pos) {
+  return str.charCodeAt(pos++) + (str.charCodeAt(pos++) << 8) + (str.charCodeAt(pos++) << 16) + (str.charCodeAt(pos) << 24);
+}
+
+function UInt16(str, pos) {
+  return str.charCodeAt(pos++) + (str.charCodeAt(pos++) << 8);
+}
+
+function Umul32(n, m) {
+  n = n | 0;
+  m = m | 0;
+  let nlo = n & 0xffff;
+  let nhi = n >>> 16;
+  let res = nlo * m + ((nhi * m & 0xffff) << 16) | 0;
+  return res;
+}