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1 files changed, 44 insertions, 0 deletions

diff --git a/node_modules/@webassemblyjs/utf8/src/encoder.js b/node_modules/@webassemblyjs/utf8/src/encoder.js
new file mode 100644
index 00000000..1c482f07
--- /dev/null
+++ b/node_modules/@webassemblyjs/utf8/src/encoder.js
@@ -0,0 +1,44 @@
+function con(n) {
+  return 0x80 | (n & 0x3f);
+}
+
+export function encode(str) {
+  const arr = str.split("").map(x => x.charCodeAt(0));
+  return _encode(arr);
+}
+
+function _encode(arr) {
+  if (arr.length === 0) {
+    return [];
+  }
+
+  const [n, ...ns] = arr;
+
+  if (n < 0) {
+    throw new Error("utf8");
+  }
+
+  if (n < 0x80) {
+    return [n, ..._encode(ns)];
+  }
+
+  if (n < 0x800) {
+    return [0xc0 | (n >>> 6), con(n), ..._encode(ns)];
+  }
+
+  if (n < 0x10000) {
+    return [0xe0 | (n >>> 12), con(n >>> 6), con(n), ..._encode(ns)];
+  }
+
+  if (n < 0x110000) {
+    return [
+      0xf0 | (n >>> 18),
+      con(n >>> 12),
+      con(n >>> 6),
+      con(n),
+      ..._encode(ns)
+    ];
+  }
+
+  throw new Error("utf8");
+}