@parcel/core/lib/public/Symbols.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.MutableDependencySymbols = exports.MutableAssetSymbols = exports.AssetSymbols = void 0;
function _nullthrows() {
  const data = _interopRequireDefault(require("nullthrows"));
  _nullthrows = function () {
    return data;
  };
  return data;
}
var _utils = require("../utils");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const EMPTY_ITERABLE = {
  [Symbol.iterator]() {
    return EMPTY_ITERATOR;
  }
};
const EMPTY_ITERATOR = {
  next() {
    return {
      done: true
    };
  }
};
const inspect = Symbol.for('nodejs.util.inspect.custom');
let valueToSymbols = new WeakMap();
class AssetSymbols {
  /*::
  @@iterator(): Iterator<[ISymbol, {|local: ISymbol, loc: ?SourceLocation, meta?: ?Meta|}]> { return ({}: any); }
  */
  #value;
  #options;
  constructor(options, asset) {
    let existing = valueToSymbols.get(asset);
    if (existing != null) {
      return existing;
    }
    this.#value = asset;
    this.#options = options;
    valueToSymbols.set(asset, this);
    return this;
  }
  hasExportSymbol(exportSymbol) {
    var _this$value$symbols;
    return Boolean((_this$value$symbols = this.#value.symbols) === null || _this$value$symbols === void 0 ? void 0 : _this$value$symbols.has(exportSymbol));
  }
  hasLocalSymbol(local) {
    if (this.#value.symbols == null) {
      return false;
    }
    for (let s of this.#value.symbols.values()) {
      if (local === s.local) return true;
    }
    return false;
  }
  get(exportSymbol) {
    var _this$value$symbols2;
    return fromInternalAssetSymbol(this.#options.projectRoot, (_this$value$symbols2 = this.#value.symbols) === null || _this$value$symbols2 === void 0 ? void 0 : _this$value$symbols2.get(exportSymbol));
  }
  get isCleared() {
    return this.#value.symbols == null;
  }
  exportSymbols() {
    var _this$value$symbols3;
    return ((_this$value$symbols3 = this.#value.symbols) === null || _this$value$symbols3 === void 0 ? void 0 : _this$value$symbols3.keys()) ?? [];
  }
  // $FlowFixMe
  [Symbol.iterator]() {
    return this.#value.symbols ? this.#value.symbols[Symbol.iterator]() : EMPTY_ITERATOR;
  }

  // $FlowFixMe
  [inspect]() {
    return `AssetSymbols(${this.#value.symbols ? [...this.#value.symbols].map(([s, {
      local
    }]) => `${s}:${local}`).join(', ') : null})`;
  }
}
exports.AssetSymbols = AssetSymbols;
let valueToMutableAssetSymbols = new WeakMap();
class MutableAssetSymbols {
  /*::
  @@iterator(): Iterator<[ISymbol, {|local: ISymbol, loc: ?SourceLocation, meta?: ?Meta|}]> { return ({}: any); }
  */
  #value;
  #options;
  constructor(options, asset) {
    let existing = valueToMutableAssetSymbols.get(asset);
    if (existing != null) {
      return existing;
    }
    this.#value = asset;
    this.#options = options;
    return this;
  }

  // immutable

  hasExportSymbol(exportSymbol) {
    var _this$value$symbols4;
    return Boolean((_this$value$symbols4 = this.#value.symbols) === null || _this$value$symbols4 === void 0 ? void 0 : _this$value$symbols4.has(exportSymbol));
  }
  hasLocalSymbol(local) {
    if (this.#value.symbols == null) {
      return false;
    }
    for (let s of this.#value.symbols.values()) {
      if (local === s.local) return true;
    }
    return false;
  }
  get(exportSymbol) {
    var _this$value$symbols5;
    return fromInternalAssetSymbol(this.#options.projectRoot, (_this$value$symbols5 = this.#value.symbols) === null || _this$value$symbols5 === void 0 ? void 0 : _this$value$symbols5.get(exportSymbol));
  }
  get isCleared() {
    return this.#value.symbols == null;
  }
  exportSymbols() {
    // $FlowFixMe
    return this.#value.symbols.keys();
  }
  // $FlowFixMe
  [Symbol.iterator]() {
    return this.#value.symbols ? this.#value.symbols[Symbol.iterator]() : EMPTY_ITERATOR;
  }

  // $FlowFixMe
  [inspect]() {
    return `MutableAssetSymbols(${this.#value.symbols ? [...this.#value.symbols].map(([s, {
      local
    }]) => `${s}:${local}`).join(', ') : null})`;
  }

  // mutating

  ensure() {
    if (this.#value.symbols == null) {
      this.#value.symbols = new Map();
    }
  }
  set(exportSymbol, local, loc, meta) {
    (0, _nullthrows().default)(this.#value.symbols).set(exportSymbol, {
      local,
      loc: (0, _utils.toInternalSourceLocation)(this.#options.projectRoot, loc),
      meta
    });
  }
  delete(exportSymbol) {
    (0, _nullthrows().default)(this.#value.symbols).delete(exportSymbol);
  }
}
exports.MutableAssetSymbols = MutableAssetSymbols;
let valueToMutableDependencySymbols = new WeakMap();
class MutableDependencySymbols {
  /*::
  @@iterator(): Iterator<[ISymbol, {|local: ISymbol, loc: ?SourceLocation, isWeak: boolean, meta?: ?Meta|}]> { return ({}: any); }
  */
  #value;
  #options;
  constructor(options, dep) {
    let existing = valueToMutableDependencySymbols.get(dep);
    if (existing != null) {
      return existing;
    }
    this.#value = dep;
    this.#options = options;
    return this;
  }

  // immutable:

  hasExportSymbol(exportSymbol) {
    var _this$value$symbols6;
    return Boolean((_this$value$symbols6 = this.#value.symbols) === null || _this$value$symbols6 === void 0 ? void 0 : _this$value$symbols6.has(exportSymbol));
  }
  hasLocalSymbol(local) {
    if (this.#value.symbols) {
      for (let s of this.#value.symbols.values()) {
        if (local === s.local) return true;
      }
    }
    return false;
  }
  get(exportSymbol) {
    return fromInternalDependencySymbol(this.#options.projectRoot, (0, _nullthrows().default)(this.#value.symbols).get(exportSymbol));
  }
  get isCleared() {
    return this.#value.symbols == null;
  }
  exportSymbols() {
    // $FlowFixMe
    return this.#value.symbols ? this.#value.symbols.keys() : EMPTY_ITERABLE;
  }

  // $FlowFixMe
  [Symbol.iterator]() {
    return this.#value.symbols ? this.#value.symbols[Symbol.iterator]() : EMPTY_ITERATOR;
  }

  // $FlowFixMe
  [inspect]() {
    return `MutableDependencySymbols(${this.#value.symbols ? [...this.#value.symbols].map(([s, {
      local,
      isWeak
    }]) => `${s}:${local}${isWeak ? '?' : ''}`).join(', ') : null})`;
  }

  // mutating:

  ensure() {
    if (this.#value.symbols == null) {
      this.#value.symbols = new Map();
    }
  }
  set(exportSymbol, local, loc, isWeak) {
    var _symbols$get;
    let symbols = (0, _nullthrows().default)(this.#value.symbols);
    symbols.set(exportSymbol, {
      local,
      loc: (0, _utils.toInternalSourceLocation)(this.#options.projectRoot, loc),
      isWeak: (((_symbols$get = symbols.get(exportSymbol)) === null || _symbols$get === void 0 ? void 0 : _symbols$get.isWeak) ?? true) && (isWeak ?? false)
    });
  }
  delete(exportSymbol) {
    (0, _nullthrows().default)(this.#value.symbols).delete(exportSymbol);
  }
}
exports.MutableDependencySymbols = MutableDependencySymbols;
function fromInternalAssetSymbol(projectRoot, value) {
  return value && {
    local: value.local,
    meta: value.meta,
    loc: (0, _utils.fromInternalSourceLocation)(projectRoot, value.loc)
  };
}
function fromInternalDependencySymbol(projectRoot, value) {
  return value && {
    local: value.local,
    meta: value.meta,
    isWeak: value.isWeak,
    loc: (0, _utils.fromInternalSourceLocation)(projectRoot, value.loc)
  };
}