merge new into master

node_modules/hermes-parser/dist/HermesParser.js

@@ -0,0 +1,108 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * 
+ * @format
+ */
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.parse = parse;
+
+var _HermesParserDeserializer = _interopRequireDefault(require("./HermesParserDeserializer"));
+
+var _HermesParserWASM = _interopRequireDefault(require("./HermesParserWASM"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+let HermesParserWASM;
+let hermesParse;
+let hermesParseResult_free;
+let hermesParseResult_getError;
+let hermesParseResult_getErrorLine;
+let hermesParseResult_getErrorColumn;
+let hermesParseResult_getProgramBuffer;
+let hermesParseResult_getPositionBuffer;
+let hermesParseResult_getPositionBufferSize;
+/**
+ * Init the WASM wrapper code generated by `emscripten` to preparse the
+ * HermesParser WASM code.
+ */
+
+function initHermesParserWASM() {
+  if (HermesParserWASM != null) {
+    return;
+  }
+
+  HermesParserWASM = (0, _HermesParserWASM.default)({
+    /**
+     * The emscripten version of `quit` unconditionally assigns the `status` to
+     * `process.exitCode` which overrides any pre-existing code that has been
+     * set, even if it is non zero. For our use case we never want an
+     * `exitCode` to be set so this override removes that functionality.
+     */
+    quit(_status, toThrow) {
+      throw toThrow;
+    }
+
+  });
+  hermesParse = HermesParserWASM.cwrap('hermesParse', 'number', ['number', 'number', 'number', 'number', 'number', 'number']);
+  hermesParseResult_free = HermesParserWASM.cwrap('hermesParseResult_free', 'void', ['number']);
+  hermesParseResult_getError = HermesParserWASM.cwrap('hermesParseResult_getError', 'string', ['number']);
+  hermesParseResult_getErrorLine = HermesParserWASM.cwrap('hermesParseResult_getErrorLine', 'number', ['number']);
+  hermesParseResult_getErrorColumn = HermesParserWASM.cwrap('hermesParseResult_getErrorColumn', 'number', ['number']);
+  hermesParseResult_getProgramBuffer = HermesParserWASM.cwrap('hermesParseResult_getProgramBuffer', 'number', ['number']);
+  hermesParseResult_getPositionBuffer = HermesParserWASM.cwrap('hermesParseResult_getPositionBuffer', 'number', ['number']);
+  hermesParseResult_getPositionBufferSize = HermesParserWASM.cwrap('hermesParseResult_getPositionBufferSize', 'number', ['number']);
+} // Copy a string into the WASM heap and null-terminate
+
+
+function copyToHeap(buffer, addr) {
+  HermesParserWASM.HEAP8.set(buffer, addr);
+  HermesParserWASM.HEAP8[addr + buffer.length] = 0;
+}
+
+function parse(source, options) {
+  initHermesParserWASM(); // Allocate space on heap for source text
+
+  const sourceBuffer = Buffer.from(source, 'utf8');
+
+  const sourceAddr = HermesParserWASM._malloc(sourceBuffer.length + 1);
+
+  if (!sourceAddr) {
+    throw new Error('Parser out of memory');
+  }
+
+  try {
+    // Copy source text onto WASM heap
+    copyToHeap(sourceBuffer, sourceAddr);
+    const parseResult = hermesParse(sourceAddr, sourceBuffer.length + 1, options.flow === 'detect', options.enableExperimentalComponentSyntax, options.tokens, options.allowReturnOutsideFunction);
+
+    try {
+      // Extract and throw error from parse result if parsing failed
+      const err = hermesParseResult_getError(parseResult);
+
+      if (err) {
+        const syntaxError = new SyntaxError(err); // $FlowExpectedError[prop-missing]
+
+        syntaxError.loc = {
+          line: hermesParseResult_getErrorLine(parseResult),
+          column: hermesParseResult_getErrorColumn(parseResult)
+        };
+        throw syntaxError;
+      }
+
+      const deserializer = new _HermesParserDeserializer.default(hermesParseResult_getProgramBuffer(parseResult), hermesParseResult_getPositionBuffer(parseResult), hermesParseResult_getPositionBufferSize(parseResult), HermesParserWASM, options);
+      return deserializer.deserialize();
+    } finally {
+      hermesParseResult_free(parseResult);
+    }
+  } finally {
+    HermesParserWASM._free(sourceAddr);
+  }
+}