larry babby and threejs for glsl

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/SourceMap.js

@@ -0,0 +1,483 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+var _path = _interopRequireDefault(require("path"));
+
+var _utils = require("./utils");
+
+var _package = require("../package.json");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+
+class SourceMap {
+  /**
+   * @private
+   */
+
+  /**
+   * @private
+   */
+
+  /**
+   * Construct a SourceMap instance
+   *
+   * @param projectRoot root directory of the project, this is to ensure all source paths are relative to this path
+   */
+  constructor(projectRoot = '/', buffer) {
+    _defineProperty(this, "sourceMapInstance", void 0);
+
+    _defineProperty(this, "projectRoot", void 0);
+  } // Use this to invalidate saved buffers, we don't check versioning at all in Rust
+
+
+  get libraryVersion() {
+    return _package.version;
+  }
+  /**
+   * Generates an empty map from the provided fileName and sourceContent
+   *
+   * @param sourceName path of the source file
+   * @param sourceContent content of the source file
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+
+
+  static generateEmptyMap({
+    projectRoot,
+    sourceName,
+    sourceContent,
+    lineOffset = 0
+  }) {
+    throw new Error('SourceMap.generateEmptyMap() must be implemented when extending SourceMap');
+  }
+  /**
+   * Generates an empty map from the provided fileName and sourceContent
+   *
+   * @param sourceName path of the source file
+   * @param sourceContent content of the source file
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+
+
+  addEmptyMap(sourceName, sourceContent, lineOffset = 0) {
+    this.sourceMapInstance.addEmptyMap(sourceName, sourceContent, lineOffset);
+    return this;
+  }
+  /**
+   * Appends raw VLQ mappings to the sourcemaps
+   */
+
+
+  addVLQMap(map, lineOffset = 0, columnOffset = 0) {
+    throw new Error('SourceMap.addVLQMap() must be implemented when extending SourceMap');
+  }
+  /**
+   * Appends another sourcemap instance to this sourcemap
+   *
+   * @param buffer the sourcemap buffer that should get appended to this sourcemap
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+
+
+  addSourceMap(sourcemap, lineOffset = 0) {
+    throw new Error('Not implemented by child class');
+  }
+  /**
+   * Appends a buffer to this sourcemap
+   * Note: The buffer should be generated by this library
+   * @param buffer the sourcemap buffer that should get appended to this sourcemap
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+
+
+  addBuffer(buffer, lineOffset = 0) {
+    throw new Error('Not implemented by child class');
+  }
+  /**
+   * Appends a Mapping object to this sourcemap
+   * Note: line numbers start at 1 due to mozilla's source-map library
+   *
+   * @param mapping the mapping that should be appended to this sourcemap
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   * @param columnOffset  an offset that gets added to the sourceColumn index of each mapping
+   */
+
+
+  addIndexedMapping(mapping, lineOffset = 0, columnOffset = 0) {
+    // Not sure if it'll be worth it to add this back to C++, wrapping it in an array probably doesn't do that much harm in JS?
+    // Also we barely use this function anyway...
+    this.addIndexedMappings([mapping], lineOffset, columnOffset);
+  }
+
+  _indexedMappingsToInt32Array(mappings, lineOffset = 0, columnOffset = 0) {
+    // Encode all mappings into a single typed array and make one call
+    // to C++ instead of one for each mapping to improve performance.
+    let mappingBuffer = new Int32Array(mappings.length * 6);
+    let sources = new Map();
+    let names = new Map();
+    let i = 0;
+
+    for (let mapping of mappings) {
+      let hasValidOriginal = mapping.original && typeof mapping.original.line === 'number' && !isNaN(mapping.original.line) && typeof mapping.original.column === 'number' && !isNaN(mapping.original.column);
+      mappingBuffer[i++] = mapping.generated.line + lineOffset - 1;
+      mappingBuffer[i++] = mapping.generated.column + columnOffset; // $FlowFixMe
+
+      mappingBuffer[i++] = hasValidOriginal ? mapping.original.line - 1 : -1; // $FlowFixMe
+
+      mappingBuffer[i++] = hasValidOriginal ? mapping.original.column : -1;
+      let sourceIndex = mapping.source ? sources.get(mapping.source) : -1;
+
+      if (sourceIndex == null) {
+        // $FlowFixMe
+        sourceIndex = this.addSource(mapping.source); // $FlowFixMe
+
+        sources.set(mapping.source, sourceIndex);
+      }
+
+      mappingBuffer[i++] = sourceIndex;
+      let nameIndex = mapping.name ? names.get(mapping.name) : -1;
+
+      if (nameIndex == null) {
+        // $FlowFixMe
+        nameIndex = this.addName(mapping.name); // $FlowFixMe
+
+        names.set(mapping.name, nameIndex);
+      }
+
+      mappingBuffer[i++] = nameIndex;
+    }
+
+    return mappingBuffer;
+  }
+  /**
+   * Appends an array of Mapping objects to this sourcemap
+   * This is useful when improving performance if a library provides the non-serialised mappings
+   *
+   * Note: This is only faster if they generate the serialised map lazily
+   * Note: line numbers start at 1 due to mozilla's source-map library
+   *
+   * @param mappings an array of mapping objects
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   * @param columnOffset  an offset that gets added to the sourceColumn index of each mapping
+   */
+
+
+  addIndexedMappings(mappings, lineOffset = 0, columnOffset = 0) {
+    let mappingBuffer = this._indexedMappingsToInt32Array(mappings, lineOffset, columnOffset);
+
+    this.sourceMapInstance.addIndexedMappings(mappingBuffer);
+    return this;
+  }
+  /**
+   * Appends a name to the sourcemap
+   *
+   * @param name the name that should be appended to the names array
+   * @returns the index of the added name in the names array
+   */
+
+
+  addName(name) {
+    return this.sourceMapInstance.addName(name);
+  }
+  /**
+   * Appends an array of names to the sourcemap's names array
+   *
+   * @param names an array of names to add to the sourcemap
+   * @returns an array of indexes of the names in the sourcemap's names array, has the same order as the provided names array
+   */
+
+
+  addNames(names) {
+    return names.map(n => this.addName(n));
+  }
+  /**
+   * Appends a source to the sourcemap's sources array
+   *
+   * @param source a filepath that should be appended to the sources array
+   * @returns the index of the added source filepath in the sources array
+   */
+
+
+  addSource(source) {
+    return this.sourceMapInstance.addSource(source);
+  }
+  /**
+   * Appends an array of sources to the sourcemap's sources array
+   *
+   * @param sources an array of filepaths which should sbe appended to the sources array
+   * @returns an array of indexes of the sources that have been added to the sourcemap, returned in the same order as provided in the argument
+   */
+
+
+  addSources(sources) {
+    return sources.map(s => this.addSource(s));
+  }
+  /**
+   * Get the index in the sources array for a certain source file filepath
+   *
+   * @param source the filepath of the source file
+   */
+
+
+  getSourceIndex(source) {
+    return this.sourceMapInstance.getSourceIndex(source);
+  }
+  /**
+   * Get the source file filepath for a certain index of the sources array
+   *
+   * @param index the index of the source in the sources array
+   */
+
+
+  getSource(index) {
+    return this.sourceMapInstance.getSource(index);
+  }
+  /**
+   * Get a list of all sources
+   */
+
+
+  getSources() {
+    return this.sourceMapInstance.getSources();
+  }
+  /**
+   * Set the sourceContent for a certain file
+   * this is optional and is only recommended for files that we cannot read in at the end when we serialise the sourcemap
+   *
+   * @param sourceName the path of the sourceFile
+   * @param sourceContent the content of the sourceFile
+   */
+
+
+  setSourceContent(sourceName, sourceContent) {
+    return this.sourceMapInstance.setSourceContentBySource(sourceName, sourceContent);
+  }
+  /**
+   * Get the content of a source file if it is inlined as part of the source-map
+   *
+   * @param sourceName filename
+   */
+
+
+  getSourceContent(sourceName) {
+    return this.sourceMapInstance.getSourceContentBySource(sourceName);
+  }
+  /**
+   * Get a list of all sources
+   */
+
+
+  getSourcesContent() {
+    return this.sourceMapInstance.getSourcesContent();
+  }
+  /**
+   * Get a map of the source and it's corresponding source content
+   */
+
+
+  getSourcesContentMap() {
+    let sources = this.getSources();
+    let sourcesContent = this.getSourcesContent();
+    let results = {};
+
+    for (let i = 0; i < sources.length; i++) {
+      results[sources[i]] = sourcesContent[i] || null;
+    }
+
+    return results;
+  }
+  /**
+   * Get the index in the names array for a certain name
+   *
+   * @param name the name you want to find the index of
+   */
+
+
+  getNameIndex(name) {
+    return this.sourceMapInstance.getNameIndex(name);
+  }
+  /**
+   * Get the name for a certain index of the names array
+   *
+   * @param index the index of the name in the names array
+   */
+
+
+  getName(index) {
+    return this.sourceMapInstance.getName(index);
+  }
+  /**
+   * Get a list of all names
+   */
+
+
+  getNames() {
+    return this.sourceMapInstance.getNames();
+  }
+  /**
+   * Get a list of all mappings
+   */
+
+
+  getMappings() {
+    return this.sourceMapInstance.getMappings();
+  }
+  /**
+   * Convert a Mapping object that uses indexes for name and source to the actual value of name and source
+   *
+   * Note: This is only used internally, should not be used externally and will probably eventually get
+   * handled directly in C++ for improved performance
+   *
+   * @param index the Mapping that should get converted to a string-based Mapping
+   */
+
+
+  indexedMappingToStringMapping(mapping) {
+    if (!mapping) return mapping;
+
+    if (mapping.source != null && mapping.source > -1) {
+      // $FlowFixMe
+      mapping.source = this.getSource(mapping.source);
+    }
+
+    if (mapping.name != null && mapping.name > -1) {
+      // $FlowFixMe
+      mapping.name = this.getName(mapping.name);
+    } // $FlowFixMe
+
+
+    return mapping;
+  }
+  /**
+   * Remaps original positions from this map to the ones in the provided map
+   *
+   * This works by finding the closest generated mapping in the provided map
+   * to original mappings of this map and remapping those to be the original
+   * mapping of the provided map.
+   *
+   * @param buffer exported SourceMap as a buffer
+   */
+
+
+  extends(buffer) {
+    throw new Error('Should be implemented by extending');
+  }
+  /**
+   * Returns an object with mappings, sources and names
+   * This should only be used for tests, debugging and visualising sourcemaps
+   *
+   * Note: This is a fairly slow operation
+   */
+
+
+  getMap() {
+    return {
+      mappings: this.getMappings(),
+      sources: this.getSources(),
+      sourcesContent: this.getSourcesContent(),
+      names: this.getNames()
+    };
+  }
+  /**
+   * Searches through the sourcemap and returns a mapping that is close to the provided generated line and column
+   *
+   * @param line the line in the generated code (starts at 1)
+   * @param column the column in the generated code (starts at 0)
+   */
+
+
+  findClosestMapping(line, column) {
+    let mapping = this.sourceMapInstance.findClosestMapping(line - 1, column);
+
+    if (mapping) {
+      let v = this.indexedMappingToStringMapping(mapping);
+      return v;
+    } else {
+      return null;
+    }
+  }
+  /**
+   * Offset mapping lines from a certain position
+   *
+   * @param line the line in the generated code (starts at 1)
+   * @param lineOffset the amount of lines to offset mappings by
+   */
+
+
+  offsetLines(line, lineOffset) {
+    if (line < 1 || line + lineOffset < 1) {
+      throw new Error('Line has to be positive');
+    }
+
+    if (lineOffset === 0) {
+      return;
+    }
+
+    this.sourceMapInstance.offsetLines(line - 1, lineOffset);
+  }
+  /**
+   * Offset mapping columns from a certain position
+   *
+   * @param line the line in the generated code (starts at 1)
+   * @param column the column in the generated code (starts at 0)
+   * @param columnOffset the amount of columns to offset mappings by
+   */
+
+
+  offsetColumns(line, column, columnOffset) {
+    if (line < 1 || column < 0 || column + columnOffset < 0) {
+      throw new Error('Line and Column has to be positive');
+    }
+
+    if (columnOffset === 0) {
+      return;
+    }
+
+    this.sourceMapInstance.offsetColumns(line - 1, column, columnOffset);
+  }
+  /**
+   * Returns a buffer that represents this sourcemap, used for caching
+   */
+
+
+  toBuffer() {
+    return this.sourceMapInstance.toBuffer();
+  }
+  /**
+   * Returns a serialised map using VLQ Mappings
+   */
+
+
+  toVLQ() {
+    return this.sourceMapInstance.toVLQ();
+  }
+  /**
+   * A function that has to be called at the end of the SourceMap's lifecycle to ensure all memory and native bindings get de-allocated
+   */
+
+
+  delete() {
+    throw new Error('SourceMap.delete() must be implemented when extending SourceMap');
+  }
+  /**
+   * Returns a serialised map
+   *
+   * @param options options used for formatting the serialised map
+   */
+
+
+  async stringify(options) {
+    return (0, _utils.partialVlqMapToSourceMap)(this.toVLQ(), { ...options,
+      rootDir: this.projectRoot || options.rootDir
+    });
+  }
+
+}
+
+exports.default = SourceMap;

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/SourceMap.js.flow

@@ -0,0 +1,444 @@
+// @flow
+import type { ParsedMap, VLQMap, SourceMapStringifyOptions, IndexedMapping, GenerateEmptyMapOptions } from './types';
+
+import path from 'path';
+import { generateInlineMap, partialVlqMapToSourceMap } from './utils';
+import { version } from '../package.json';
+
+export default class SourceMap {
+  /**
+   * @private
+   */
+  sourceMapInstance: any;
+
+  /**
+   * @private
+   */
+  projectRoot: string;
+
+  /**
+   * Construct a SourceMap instance
+   *
+   * @param projectRoot root directory of the project, this is to ensure all source paths are relative to this path
+   */
+  constructor(projectRoot: string = '/', buffer?: Buffer) {}
+
+  // Use this to invalidate saved buffers, we don't check versioning at all in Rust
+  get libraryVersion(): string {
+    return version;
+  }
+
+  /**
+   * Generates an empty map from the provided fileName and sourceContent
+   *
+   * @param sourceName path of the source file
+   * @param sourceContent content of the source file
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+  static generateEmptyMap({
+    projectRoot,
+    sourceName,
+    sourceContent,
+    lineOffset = 0,
+  }: GenerateEmptyMapOptions): SourceMap {
+    throw new Error('SourceMap.generateEmptyMap() must be implemented when extending SourceMap');
+  }
+
+  /**
+   * Generates an empty map from the provided fileName and sourceContent
+   *
+   * @param sourceName path of the source file
+   * @param sourceContent content of the source file
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+  addEmptyMap(sourceName: string, sourceContent: string, lineOffset: number = 0): SourceMap {
+    this.sourceMapInstance.addEmptyMap(sourceName, sourceContent, lineOffset);
+    return this;
+  }
+
+  /**
+   * Appends raw VLQ mappings to the sourcemaps
+   */
+  addVLQMap(map: VLQMap, lineOffset: number = 0, columnOffset: number = 0): SourceMap {
+    throw new Error('SourceMap.addVLQMap() must be implemented when extending SourceMap');
+  }
+
+  /**
+   * Appends another sourcemap instance to this sourcemap
+   *
+   * @param buffer the sourcemap buffer that should get appended to this sourcemap
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+  addSourceMap(sourcemap: SourceMap, lineOffset: number = 0): SourceMap {
+    throw new Error('Not implemented by child class');
+  }
+
+  /**
+   * Appends a buffer to this sourcemap
+   * Note: The buffer should be generated by this library
+   * @param buffer the sourcemap buffer that should get appended to this sourcemap
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   */
+  addBuffer(buffer: Buffer, lineOffset: number = 0): SourceMap {
+    throw new Error('Not implemented by child class');
+  }
+
+  /**
+   * Appends a Mapping object to this sourcemap
+   * Note: line numbers start at 1 due to mozilla's source-map library
+   *
+   * @param mapping the mapping that should be appended to this sourcemap
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   * @param columnOffset  an offset that gets added to the sourceColumn index of each mapping
+   */
+  addIndexedMapping(mapping: IndexedMapping<string>, lineOffset?: number = 0, columnOffset?: number = 0): void {
+    // Not sure if it'll be worth it to add this back to C++, wrapping it in an array probably doesn't do that much harm in JS?
+    // Also we barely use this function anyway...
+    this.addIndexedMappings([mapping], lineOffset, columnOffset);
+  }
+
+  _indexedMappingsToInt32Array(
+    mappings: Array<IndexedMapping<string>>,
+    lineOffset?: number = 0,
+    columnOffset?: number = 0
+  ): Int32Array {
+    // Encode all mappings into a single typed array and make one call
+    // to C++ instead of one for each mapping to improve performance.
+    let mappingBuffer = new Int32Array(mappings.length * 6);
+    let sources: Map<string, number> = new Map();
+    let names: Map<string, number> = new Map();
+    let i = 0;
+    for (let mapping of mappings) {
+      let hasValidOriginal =
+        mapping.original &&
+        typeof mapping.original.line === 'number' &&
+        !isNaN(mapping.original.line) &&
+        typeof mapping.original.column === 'number' &&
+        !isNaN(mapping.original.column);
+
+      mappingBuffer[i++] = mapping.generated.line + lineOffset - 1;
+      mappingBuffer[i++] = mapping.generated.column + columnOffset;
+      // $FlowFixMe
+      mappingBuffer[i++] = hasValidOriginal ? mapping.original.line - 1 : -1;
+      // $FlowFixMe
+      mappingBuffer[i++] = hasValidOriginal ? mapping.original.column : -1;
+
+      let sourceIndex = mapping.source ? sources.get(mapping.source) : -1;
+      if (sourceIndex == null) {
+        // $FlowFixMe
+        sourceIndex = this.addSource(mapping.source);
+        // $FlowFixMe
+        sources.set(mapping.source, sourceIndex);
+      }
+      mappingBuffer[i++] = sourceIndex;
+
+      let nameIndex = mapping.name ? names.get(mapping.name) : -1;
+      if (nameIndex == null) {
+        // $FlowFixMe
+        nameIndex = this.addName(mapping.name);
+        // $FlowFixMe
+        names.set(mapping.name, nameIndex);
+      }
+      mappingBuffer[i++] = nameIndex;
+    }
+
+    return mappingBuffer;
+  }
+
+  /**
+   * Appends an array of Mapping objects to this sourcemap
+   * This is useful when improving performance if a library provides the non-serialised mappings
+   *
+   * Note: This is only faster if they generate the serialised map lazily
+   * Note: line numbers start at 1 due to mozilla's source-map library
+   *
+   * @param mappings an array of mapping objects
+   * @param lineOffset an offset that gets added to the sourceLine index of each mapping
+   * @param columnOffset  an offset that gets added to the sourceColumn index of each mapping
+   */
+  addIndexedMappings(
+    mappings: Array<IndexedMapping<string>>,
+    lineOffset?: number = 0,
+    columnOffset?: number = 0
+  ): SourceMap {
+    let mappingBuffer = this._indexedMappingsToInt32Array(mappings, lineOffset, columnOffset);
+    this.sourceMapInstance.addIndexedMappings(mappingBuffer);
+    return this;
+  }
+
+  /**
+   * Appends a name to the sourcemap
+   *
+   * @param name the name that should be appended to the names array
+   * @returns the index of the added name in the names array
+   */
+  addName(name: string): number {
+    return this.sourceMapInstance.addName(name);
+  }
+
+  /**
+   * Appends an array of names to the sourcemap's names array
+   *
+   * @param names an array of names to add to the sourcemap
+   * @returns an array of indexes of the names in the sourcemap's names array, has the same order as the provided names array
+   */
+  addNames(names: Array<string>): Array<number> {
+    return names.map((n) => this.addName(n));
+  }
+
+  /**
+   * Appends a source to the sourcemap's sources array
+   *
+   * @param source a filepath that should be appended to the sources array
+   * @returns the index of the added source filepath in the sources array
+   */
+  addSource(source: string): number {
+    return this.sourceMapInstance.addSource(source);
+  }
+
+  /**
+   * Appends an array of sources to the sourcemap's sources array
+   *
+   * @param sources an array of filepaths which should sbe appended to the sources array
+   * @returns an array of indexes of the sources that have been added to the sourcemap, returned in the same order as provided in the argument
+   */
+  addSources(sources: Array<string>): Array<number> {
+    return sources.map((s) => this.addSource(s));
+  }
+
+  /**
+   * Get the index in the sources array for a certain source file filepath
+   *
+   * @param source the filepath of the source file
+   */
+  getSourceIndex(source: string): number {
+    return this.sourceMapInstance.getSourceIndex(source);
+  }
+
+  /**
+   * Get the source file filepath for a certain index of the sources array
+   *
+   * @param index the index of the source in the sources array
+   */
+  getSource(index: number): string {
+    return this.sourceMapInstance.getSource(index);
+  }
+
+  /**
+   * Get a list of all sources
+   */
+  getSources(): Array<string> {
+    return this.sourceMapInstance.getSources();
+  }
+
+  /**
+   * Set the sourceContent for a certain file
+   * this is optional and is only recommended for files that we cannot read in at the end when we serialise the sourcemap
+   *
+   * @param sourceName the path of the sourceFile
+   * @param sourceContent the content of the sourceFile
+   */
+  setSourceContent(sourceName: string, sourceContent: string): void {
+    return this.sourceMapInstance.setSourceContentBySource(sourceName, sourceContent);
+  }
+
+  /**
+   * Get the content of a source file if it is inlined as part of the source-map
+   *
+   * @param sourceName filename
+   */
+  getSourceContent(sourceName: string): string | null {
+    return this.sourceMapInstance.getSourceContentBySource(sourceName);
+  }
+
+  /**
+   * Get a list of all sources
+   */
+  getSourcesContent(): Array<string | null> {
+    return this.sourceMapInstance.getSourcesContent();
+  }
+
+  /**
+   * Get a map of the source and it's corresponding source content
+   */
+  getSourcesContentMap(): { [key: string]: string | null } {
+    let sources = this.getSources();
+    let sourcesContent = this.getSourcesContent();
+    let results = {};
+    for (let i = 0; i < sources.length; i++) {
+      results[sources[i]] = sourcesContent[i] || null;
+    }
+    return results;
+  }
+
+  /**
+   * Get the index in the names array for a certain name
+   *
+   * @param name the name you want to find the index of
+   */
+  getNameIndex(name: string): number {
+    return this.sourceMapInstance.getNameIndex(name);
+  }
+
+  /**
+   * Get the name for a certain index of the names array
+   *
+   * @param index the index of the name in the names array
+   */
+  getName(index: number): string {
+    return this.sourceMapInstance.getName(index);
+  }
+
+  /**
+   * Get a list of all names
+   */
+  getNames(): Array<string> {
+    return this.sourceMapInstance.getNames();
+  }
+
+  /**
+   * Get a list of all mappings
+   */
+  getMappings(): Array<IndexedMapping<number>> {
+    return this.sourceMapInstance.getMappings();
+  }
+
+  /**
+   * Convert a Mapping object that uses indexes for name and source to the actual value of name and source
+   *
+   * Note: This is only used internally, should not be used externally and will probably eventually get
+   * handled directly in C++ for improved performance
+   *
+   * @param index the Mapping that should get converted to a string-based Mapping
+   */
+  indexedMappingToStringMapping(mapping: ?IndexedMapping<number>): ?IndexedMapping<string> {
+    if (!mapping) return mapping;
+
+    if (mapping.source != null && mapping.source > -1) {
+      // $FlowFixMe
+      mapping.source = this.getSource(mapping.source);
+    }
+
+    if (mapping.name != null && mapping.name > -1) {
+      // $FlowFixMe
+      mapping.name = this.getName(mapping.name);
+    }
+
+    // $FlowFixMe
+    return mapping;
+  }
+
+  /**
+   * Remaps original positions from this map to the ones in the provided map
+   *
+   * This works by finding the closest generated mapping in the provided map
+   * to original mappings of this map and remapping those to be the original
+   * mapping of the provided map.
+   *
+   * @param buffer exported SourceMap as a buffer
+   */
+  extends(buffer: Buffer | SourceMap): SourceMap {
+    throw new Error('Should be implemented by extending');
+  }
+
+  /**
+   * Returns an object with mappings, sources and names
+   * This should only be used for tests, debugging and visualising sourcemaps
+   *
+   * Note: This is a fairly slow operation
+   */
+  getMap(): ParsedMap {
+    return {
+      mappings: this.getMappings(),
+      sources: this.getSources(),
+      sourcesContent: this.getSourcesContent(),
+      names: this.getNames(),
+    };
+  }
+
+  /**
+   * Searches through the sourcemap and returns a mapping that is close to the provided generated line and column
+   *
+   * @param line the line in the generated code (starts at 1)
+   * @param column the column in the generated code (starts at 0)
+   */
+  findClosestMapping(line: number, column: number): ?IndexedMapping<string> {
+    let mapping = this.sourceMapInstance.findClosestMapping(line - 1, column);
+    if (mapping) {
+      let v = this.indexedMappingToStringMapping(mapping);
+      return v;
+    } else {
+      return null;
+    }
+  }
+
+  /**
+   * Offset mapping lines from a certain position
+   *
+   * @param line the line in the generated code (starts at 1)
+   * @param lineOffset the amount of lines to offset mappings by
+   */
+  offsetLines(line: number, lineOffset: number): ?IndexedMapping<string> {
+    if (line < 1 || line + lineOffset < 1) {
+      throw new Error('Line has to be positive');
+    }
+
+    if (lineOffset === 0) {
+      return;
+    }
+
+    this.sourceMapInstance.offsetLines(line - 1, lineOffset);
+  }
+
+  /**
+   * Offset mapping columns from a certain position
+   *
+   * @param line the line in the generated code (starts at 1)
+   * @param column the column in the generated code (starts at 0)
+   * @param columnOffset the amount of columns to offset mappings by
+   */
+  offsetColumns(line: number, column: number, columnOffset: number): ?IndexedMapping<string> {
+    if (line < 1 || column < 0 || column + columnOffset < 0) {
+      throw new Error('Line and Column has to be positive');
+    }
+
+    if (columnOffset === 0) {
+      return;
+    }
+
+    this.sourceMapInstance.offsetColumns(line - 1, column, columnOffset);
+  }
+
+  /**
+   * Returns a buffer that represents this sourcemap, used for caching
+   */
+  toBuffer(): Buffer {
+    return this.sourceMapInstance.toBuffer();
+  }
+
+  /**
+   * Returns a serialised map using VLQ Mappings
+   */
+  toVLQ(): VLQMap {
+    return this.sourceMapInstance.toVLQ();
+  }
+
+  /**
+   * A function that has to be called at the end of the SourceMap's lifecycle to ensure all memory and native bindings get de-allocated
+   */
+  delete() {
+    throw new Error('SourceMap.delete() must be implemented when extending SourceMap');
+  }
+
+  /**
+   * Returns a serialised map
+   *
+   * @param options options used for formatting the serialised map
+   */
+  async stringify(options: SourceMapStringifyOptions): Promise<string | VLQMap> {
+    return partialVlqMapToSourceMap(this.toVLQ(), {
+      ...options,
+      rootDir: this.projectRoot || options.rootDir,
+    });
+  }
+}

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/node.js

@@ -0,0 +1,87 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.init = exports.default = void 0;
+
+var _path = _interopRequireDefault(require("path"));
+
+var _SourceMap = _interopRequireDefault(require("./SourceMap"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const bindings = require('../parcel_sourcemap_node/index');
+
+class NodeSourceMap extends _SourceMap.default {
+  constructor(projectRoot = '/', buffer) {
+    super(projectRoot);
+    this.projectRoot = projectRoot;
+    this.sourceMapInstance = new bindings.SourceMap(projectRoot, buffer);
+  }
+
+  addVLQMap(map, lineOffset = 0, columnOffset = 0) {
+    let {
+      sourcesContent,
+      sources = [],
+      mappings,
+      names = []
+    } = map;
+
+    if (!sourcesContent) {
+      sourcesContent = sources.map(() => '');
+    } else {
+      sourcesContent = sourcesContent.map(content => content ? content : '');
+    }
+
+    this.sourceMapInstance.addVLQMap(mappings, JSON.stringify(sources), JSON.stringify(sourcesContent.map(content => content ? content : '')), JSON.stringify(names), lineOffset, columnOffset);
+    return this;
+  }
+
+  addSourceMap(sourcemap, lineOffset = 0) {
+    if (!(sourcemap.sourceMapInstance instanceof bindings.SourceMap)) {
+      throw new Error('The sourcemap provided to addSourceMap is not a valid sourcemap instance');
+    }
+
+    this.sourceMapInstance.addSourceMap(sourcemap.sourceMapInstance, lineOffset);
+    return this;
+  }
+
+  addBuffer(buffer, lineOffset = 0) {
+    let previousMap = new NodeSourceMap(this.projectRoot, buffer);
+    return this.addSourceMap(previousMap, lineOffset);
+  }
+
+  extends(input) {
+    // $FlowFixMe
+    let inputSourceMap = Buffer.isBuffer(input) ? new NodeSourceMap(this.projectRoot, input) : input;
+    this.sourceMapInstance.extends(inputSourceMap.sourceMapInstance);
+    return this;
+  }
+
+  getNames() {
+    return JSON.parse(this.sourceMapInstance.getNames());
+  }
+
+  getSources() {
+    return JSON.parse(this.sourceMapInstance.getSources());
+  }
+
+  delete() {}
+
+  static generateEmptyMap({
+    projectRoot,
+    sourceName,
+    sourceContent,
+    lineOffset = 0
+  }) {
+    let map = new NodeSourceMap(projectRoot);
+    map.addEmptyMap(sourceName, sourceContent, lineOffset);
+    return map;
+  }
+
+}
+
+exports.default = NodeSourceMap;
+const init = Promise.resolve();
+exports.init = init;

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/node.js.flow

@@ -0,0 +1,76 @@
+// @flow
+import type { ParsedMap, VLQMap, SourceMapStringifyOptions, IndexedMapping, GenerateEmptyMapOptions } from './types';
+import path from 'path';
+import SourceMap from './SourceMap';
+
+const bindings = require('../parcel_sourcemap_node/index');
+
+export default class NodeSourceMap extends SourceMap {
+  constructor(projectRoot: string = '/', buffer?: Buffer) {
+    super(projectRoot);
+    this.projectRoot = projectRoot;
+    this.sourceMapInstance = new bindings.SourceMap(projectRoot, buffer);
+  }
+
+  addVLQMap(map: VLQMap, lineOffset: number = 0, columnOffset: number = 0): SourceMap {
+    let { sourcesContent, sources = [], mappings, names = [] } = map;
+    if (!sourcesContent) {
+      sourcesContent = sources.map(() => '');
+    } else {
+      sourcesContent = sourcesContent.map((content) => (content ? content : ''));
+    }
+    this.sourceMapInstance.addVLQMap(
+      mappings,
+      JSON.stringify(sources),
+      JSON.stringify(sourcesContent.map((content) => (content ? content : ''))),
+      JSON.stringify(names),
+      lineOffset,
+      columnOffset
+    );
+    return this;
+  }
+
+  addSourceMap(sourcemap: SourceMap, lineOffset: number = 0): SourceMap {
+    if (!(sourcemap.sourceMapInstance instanceof bindings.SourceMap)) {
+      throw new Error('The sourcemap provided to addSourceMap is not a valid sourcemap instance');
+    }
+
+    this.sourceMapInstance.addSourceMap(sourcemap.sourceMapInstance, lineOffset);
+    return this;
+  }
+
+  addBuffer(buffer: Buffer, lineOffset: number = 0): SourceMap {
+    let previousMap = new NodeSourceMap(this.projectRoot, buffer);
+    return this.addSourceMap(previousMap, lineOffset);
+  }
+
+  extends(input: Buffer | SourceMap): SourceMap {
+    // $FlowFixMe
+    let inputSourceMap: SourceMap = Buffer.isBuffer(input) ? new NodeSourceMap(this.projectRoot, input) : input;
+    this.sourceMapInstance.extends(inputSourceMap.sourceMapInstance);
+    return this;
+  }
+
+  getNames(): Array<string> {
+    return JSON.parse(this.sourceMapInstance.getNames());
+  }
+
+  getSources(): Array<string> {
+    return JSON.parse(this.sourceMapInstance.getSources());
+  }
+
+  delete() {}
+
+  static generateEmptyMap({
+    projectRoot,
+    sourceName,
+    sourceContent,
+    lineOffset = 0,
+  }: GenerateEmptyMapOptions): NodeSourceMap {
+    let map = new NodeSourceMap(projectRoot);
+    map.addEmptyMap(sourceName, sourceContent, lineOffset);
+    return map;
+  }
+}
+
+export const init: Promise<void> = Promise.resolve();

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/types.js

@@ -0,0 +1 @@
+"use strict";

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/types.js.flow

@@ -0,0 +1,52 @@
+// @flow
+export type MappingPosition = {|
+  line: number,
+  column: number,
+|};
+
+export type IndexedMapping<T> = {
+  generated: MappingPosition,
+  original?: MappingPosition,
+  source?: T,
+  name?: T,
+  ...
+};
+
+export type ParsedMap = {|
+  sources: Array<string>,
+  names: Array<string>,
+  mappings: Array<IndexedMapping<number>>,
+  sourcesContent: Array<string | null>,
+|};
+
+export type VLQMap = {
+  +sources: $ReadOnlyArray<string>,
+  +sourcesContent?: $ReadOnlyArray<string | null>,
+  +names: $ReadOnlyArray<string>,
+  +mappings: string,
+  +version?: number,
+  +file?: string,
+  +sourceRoot?: string,
+  ...
+};
+
+export type SourceMapStringifyOptions = {
+  file?: string,
+  sourceRoot?: string,
+  inlineSources?: boolean,
+  fs?: { readFile(path: string, encoding: string): Promise<string>, ... },
+  format?: 'inline' | 'string' | 'object',
+  /**
+   * @private
+   */
+  rootDir?: string,
+  ...
+};
+
+export type GenerateEmptyMapOptions = {
+  projectRoot: string,
+  sourceName: string,
+  sourceContent: string,
+  lineOffset?: number,
+  ...
+};

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/utils.js

@@ -0,0 +1,71 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.generateInlineMap = generateInlineMap;
+exports.partialVlqMapToSourceMap = partialVlqMapToSourceMap;
+
+var _path = _interopRequireDefault(require("path"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function generateInlineMap(map) {
+  return `data:application/json;charset=utf-8;base64,${Buffer.from(map).toString('base64')}`;
+}
+
+async function partialVlqMapToSourceMap(map, opts) {
+  let {
+    fs,
+    file,
+    sourceRoot,
+    inlineSources,
+    rootDir,
+    format = 'string'
+  } = opts;
+  let resultMap = { ...map,
+    sourcesContent: map.sourcesContent ? map.sourcesContent.map(content => {
+      if (content) {
+        return content;
+      } else {
+        return null;
+      }
+    }) : [],
+    version: 3,
+    file,
+    sourceRoot
+  };
+
+  if (resultMap.sourcesContent.length < resultMap.sources.length) {
+    for (let i = 0; i <= resultMap.sources.length - resultMap.sourcesContent.length; i++) {
+      resultMap.sourcesContent.push(null);
+    }
+  }
+
+  if (fs) {
+    resultMap.sourcesContent = await Promise.all(resultMap.sourcesContent.map(async (content, index) => {
+      let sourceName = map.sources[index]; // If sourceName starts with `..` it is outside rootDir, in this case we likely cannot access this file from the browser or packaged node_module
+      // Because of this we have to include the sourceContent to ensure you can always see the sourcecontent for each mapping.
+
+      if (!content && (inlineSources || sourceName.startsWith('..'))) {
+        try {
+          return await fs.readFile(_path.default.resolve(rootDir || '/', sourceName), 'utf-8');
+        } catch (e) {}
+      }
+
+      return content;
+    }));
+  }
+
+  if (format === 'inline' || format === 'string') {
+    let stringifiedMap = JSON.stringify(resultMap);
+
+    if (format === 'inline') {
+      return generateInlineMap(stringifiedMap);
+    }
+
+    return stringifiedMap;
+  }
+
+  return resultMap;
+}

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/utils.js.flow

@@ -0,0 +1,60 @@
+// @flow
+import type { VLQMap, SourceMapStringifyOptions } from './types';
+import path from 'path';
+
+export function generateInlineMap(map: string): string {
+  return `data:application/json;charset=utf-8;base64,${Buffer.from(map).toString('base64')}`;
+}
+
+export async function partialVlqMapToSourceMap(map: VLQMap, opts: SourceMapStringifyOptions): Promise<VLQMap | string> {
+  let { fs, file, sourceRoot, inlineSources, rootDir, format = 'string' } = opts;
+
+  let resultMap = {
+    ...map,
+    sourcesContent: map.sourcesContent
+      ? map.sourcesContent.map((content) => {
+          if (content) {
+            return content;
+          } else {
+            return null;
+          }
+        })
+      : [],
+    version: 3,
+    file,
+    sourceRoot,
+  };
+
+  if (resultMap.sourcesContent.length < resultMap.sources.length) {
+    for (let i = 0; i <= resultMap.sources.length - resultMap.sourcesContent.length; i++) {
+      resultMap.sourcesContent.push(null);
+    }
+  }
+
+  if (fs) {
+    resultMap.sourcesContent = await Promise.all(
+      resultMap.sourcesContent.map(async (content, index): Promise<string | null> => {
+        let sourceName = map.sources[index];
+        // If sourceName starts with `..` it is outside rootDir, in this case we likely cannot access this file from the browser or packaged node_module
+        // Because of this we have to include the sourceContent to ensure you can always see the sourcecontent for each mapping.
+        if (!content && (inlineSources || sourceName.startsWith('..'))) {
+          try {
+            return await fs.readFile(path.resolve(rootDir || '/', sourceName), 'utf-8');
+          } catch (e) {}
+        }
+
+        return content;
+      })
+    );
+  }
+
+  if (format === 'inline' || format === 'string') {
+    let stringifiedMap = JSON.stringify(resultMap);
+    if (format === 'inline') {
+      return generateInlineMap(stringifiedMap);
+    }
+    return stringifiedMap;
+  }
+
+  return resultMap;
+}

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/wasm-bindings-web.js

@@ -0,0 +1,23 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "SourceMap", {
+  enumerable: true,
+  get: function () {
+    return _parcel_sourcemap_wasm.SourceMap;
+  }
+});
+Object.defineProperty(exports, "init", {
+  enumerable: true,
+  get: function () {
+    return _parcel_sourcemap_wasm.default;
+  }
+});
+
+var _parcel_sourcemap_wasm = _interopRequireWildcard(require("../parcel_sourcemap_wasm/dist-web/parcel_sourcemap_wasm.js"));
+
+function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
+
+function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/wasm-bindings-web.js.flow

@@ -0,0 +1 @@
+export { SourceMap, default as init } from '../parcel_sourcemap_wasm/dist-web/parcel_sourcemap_wasm.js';

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/wasm-bindings.js

@@ -0,0 +1,13 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+Object.defineProperty(exports, "SourceMap", {
+  enumerable: true,
+  get: function () {
+    return _parcel_sourcemap_wasm.SourceMap;
+  }
+});
+
+var _parcel_sourcemap_wasm = require("../parcel_sourcemap_wasm/dist-node/parcel_sourcemap_wasm.js");

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/wasm-bindings.js.flow

@@ -0,0 +1 @@
+export { SourceMap } from '../parcel_sourcemap_wasm/dist-node/parcel_sourcemap_wasm.js';

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/wasm.js

@@ -0,0 +1,86 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = exports.init = void 0;
+
+var _path = _interopRequireDefault(require("path"));
+
+var _SourceMap = _interopRequireDefault(require("./SourceMap"));
+
+var bindings = _interopRequireWildcard(require("./wasm-bindings"));
+
+function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
+
+function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+const init = typeof bindings.init === 'function' ? bindings.init() : Promise.resolve();
+exports.init = init;
+
+class WasmSourceMap extends _SourceMap.default {
+  constructor(projectRoot = '/', buffer) {
+    super(projectRoot, buffer);
+    this.sourceMapInstance = new bindings.SourceMap(projectRoot, buffer);
+    this.projectRoot = this.sourceMapInstance.getProjectRoot();
+  }
+
+  addVLQMap(map, lineOffset = 0, columnOffset = 0) {
+    let {
+      sourcesContent,
+      sources = [],
+      mappings,
+      names = []
+    } = map;
+
+    if (!sourcesContent) {
+      sourcesContent = sources.map(() => '');
+    } else {
+      sourcesContent = sourcesContent.map(content => content ? content : '');
+    }
+
+    this.sourceMapInstance.addVLQMap(mappings, sources, sourcesContent.map(content => content ? content : ''), names, lineOffset, columnOffset);
+    return this;
+  }
+
+  addSourceMap(sourcemap, lineOffset = 0) {
+    if (!(sourcemap.sourceMapInstance instanceof bindings.SourceMap)) {
+      throw new Error('The sourcemap provided to addSourceMap is not a valid sourcemap instance');
+    }
+
+    this.sourceMapInstance.addSourceMap(sourcemap.sourceMapInstance, lineOffset);
+    return this;
+  }
+
+  addBuffer(buffer, lineOffset = 0) {
+    let previousMap = new WasmSourceMap(this.projectRoot, buffer);
+    return this.addSourceMap(previousMap, lineOffset);
+  }
+
+  extends(input) {
+    // $FlowFixMe
+    let inputSourceMap = input instanceof Uint8Array ? new WasmSourceMap(this.projectRoot, input) : input;
+    this.sourceMapInstance.extends(inputSourceMap.sourceMapInstance);
+    return this;
+  }
+
+  delete() {
+    this.sourceMapInstance.free();
+  }
+
+  static generateEmptyMap({
+    projectRoot,
+    sourceName,
+    sourceContent,
+    lineOffset = 0
+  }) {
+    let map = new WasmSourceMap(projectRoot);
+    map.addEmptyMap(sourceName, sourceContent, lineOffset);
+    return map;
+  }
+
+}
+
+exports.default = WasmSourceMap;

webGl/my-threejs-test/node_modules/@parcel/source-map/dist/wasm.js.flow

@@ -0,0 +1,70 @@
+// @flow
+import type { ParsedMap, VLQMap, SourceMapStringifyOptions, IndexedMapping, GenerateEmptyMapOptions } from './types';
+import path from 'path';
+import SourceMap from './SourceMap';
+
+import * as bindings from './wasm-bindings';
+
+export const init: Promise<void> = typeof bindings.init === 'function' ? bindings.init() : Promise.resolve();
+
+export default class WasmSourceMap extends SourceMap {
+  constructor(projectRoot: string = '/', buffer?: Buffer) {
+    super(projectRoot, buffer);
+    this.sourceMapInstance = new bindings.SourceMap(projectRoot, buffer);
+    this.projectRoot = this.sourceMapInstance.getProjectRoot();
+  }
+
+  addVLQMap(map: VLQMap, lineOffset: number = 0, columnOffset: number = 0): SourceMap {
+    let { sourcesContent, sources = [], mappings, names = [] } = map;
+    if (!sourcesContent) {
+      sourcesContent = sources.map(() => '');
+    } else {
+      sourcesContent = sourcesContent.map((content) => (content ? content : ''));
+    }
+    this.sourceMapInstance.addVLQMap(
+      mappings,
+      sources,
+      sourcesContent.map((content) => (content ? content : '')),
+      names,
+      lineOffset,
+      columnOffset
+    );
+    return this;
+  }
+
+  addSourceMap(sourcemap: SourceMap, lineOffset: number = 0): SourceMap {
+    if (!(sourcemap.sourceMapInstance instanceof bindings.SourceMap)) {
+      throw new Error('The sourcemap provided to addSourceMap is not a valid sourcemap instance');
+    }
+
+    this.sourceMapInstance.addSourceMap(sourcemap.sourceMapInstance, lineOffset);
+    return this;
+  }
+
+  addBuffer(buffer: Buffer, lineOffset: number = 0): SourceMap {
+    let previousMap = new WasmSourceMap(this.projectRoot, buffer);
+    return this.addSourceMap(previousMap, lineOffset);
+  }
+
+  extends(input: Buffer | SourceMap): SourceMap {
+    // $FlowFixMe
+    let inputSourceMap: SourceMap = input instanceof Uint8Array ? new WasmSourceMap(this.projectRoot, input) : input;
+    this.sourceMapInstance.extends(inputSourceMap.sourceMapInstance);
+    return this;
+  }
+
+  delete() {
+    this.sourceMapInstance.free();
+  }
+
+  static generateEmptyMap({
+    projectRoot,
+    sourceName,
+    sourceContent,
+    lineOffset = 0,
+  }: GenerateEmptyMapOptions): WasmSourceMap {
+    let map = new WasmSourceMap(projectRoot);
+    map.addEmptyMap(sourceName, sourceContent, lineOffset);
+    return map;
+  }
+}