2 files changed, 106 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/wasm-opt/lib/index.js b/node_modules/@webassemblyjs/wasm-opt/lib/index.js
new file mode 100644
index 0000000..4355961
--- /dev/null
+++ b/node_modules/@webassemblyjs/wasm-opt/lib/index.js
@@ -0,0 +1,50 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.shrinkPaddedLEB128 = shrinkPaddedLEB128;
+
+var _wasmParser = require("@webassemblyjs/wasm-parser");
+
+var _leb = require("./leb128.js");
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var OptimizerError =
+/*#__PURE__*/
+function (_Error) {
+  _inherits(OptimizerError, _Error);
+
+  function OptimizerError(name, initalError) {
+    var _this;
+
+    _classCallCheck(this, OptimizerError);
+
+    _this = _possibleConstructorReturn(this, (OptimizerError.__proto__ || Object.getPrototypeOf(OptimizerError)).call(this, "Error while optimizing: " + name + ": " + initalError.message));
+    _this.stack = initalError.stack;
+    return _this;
+  }
+
+  return OptimizerError;
+}(Error);
+
+var decoderOpts = {
+  ignoreCodeSection: true,
+  ignoreDataSection: true
+};
+
+function shrinkPaddedLEB128(uint8Buffer) {
+  try {
+    var ast = (0, _wasmParser.decode)(uint8Buffer.buffer, decoderOpts);
+    return (0, _leb.shrinkPaddedLEB128)(ast, uint8Buffer);
+  } catch (e) {
+    throw new OptimizerError("shrinkPaddedLEB128", e);
+  }
+}
+\ No newline at end of file
diff --git a/node_modules/@webassemblyjs/wasm-opt/lib/leb128.js b/node_modules/@webassemblyjs/wasm-opt/lib/leb128.js
new file mode 100644
index 0000000..e4a0e85
--- /dev/null
+++ b/node_modules/@webassemblyjs/wasm-opt/lib/leb128.js
@@ -0,0 +1,56 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.shrinkPaddedLEB128 = shrinkPaddedLEB128;
+
+var _ast = require("@webassemblyjs/ast");
+
+var _encoder = require("@webassemblyjs/wasm-gen/lib/encoder");
+
+var _helperBuffer = require("@webassemblyjs/helper-buffer");
+
+function shiftFollowingSections(ast, _ref, deltaInSizeEncoding) {
+  var section = _ref.section;
+  // Once we hit our section every that is after needs to be shifted by the delta
+  var encounteredSection = false;
+  (0, _ast.traverse)(ast, {
+    SectionMetadata: function SectionMetadata(path) {
+      if (path.node.section === section) {
+        encounteredSection = true;
+        return;
+      }
+
+      if (encounteredSection === true) {
+        (0, _ast.shiftSection)(ast, path.node, deltaInSizeEncoding);
+      }
+    }
+  });
+}
+
+function shrinkPaddedLEB128(ast, uint8Buffer) {
+  (0, _ast.traverse)(ast, {
+    SectionMetadata: function SectionMetadata(_ref2) {
+      var node = _ref2.node;
+
+      /**
+       * Section size
+       */
+      {
+        var newu32Encoded = (0, _encoder.encodeU32)(node.size.value);
+        var newu32EncodedLen = newu32Encoded.length;
+        var start = node.size.loc.start.column;
+        var end = node.size.loc.end.column;
+        var oldu32EncodedLen = end - start;
+
+        if (newu32EncodedLen !== oldu32EncodedLen) {
+          var deltaInSizeEncoding = oldu32EncodedLen - newu32EncodedLen;
+          uint8Buffer = (0, _helperBuffer.overrideBytesInBuffer)(uint8Buffer, start, end, newu32Encoded);
+          shiftFollowingSections(ast, node, -deltaInSizeEncoding);
+        }
+      }
+    }
+  });
+  return uint8Buffer;
+}
+\ No newline at end of file