summaryrefslogtreecommitdiff
path: root/node_modules/webpack/lib/util/chainedImports.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/webpack/lib/util/chainedImports.js')
-rw-r--r--node_modules/webpack/lib/util/chainedImports.js97
1 files changed, 0 insertions, 97 deletions
diff --git a/node_modules/webpack/lib/util/chainedImports.js b/node_modules/webpack/lib/util/chainedImports.js
deleted file mode 100644
index 295233b7..00000000
--- a/node_modules/webpack/lib/util/chainedImports.js
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- MIT License http://www.opensource.org/licenses/mit-license.php
- Author Tobias Koppers @sokra
-*/
-
-"use strict";
-
-/** @typedef {import("../Dependency")} Dependency */
-/** @typedef {import("../Module")} Module */
-/** @typedef {import("../ModuleGraph")} ModuleGraph */
-/** @typedef {import("../javascript/JavascriptParser").Range} Range */
-
-/**
- * @summary Get the subset of ids and their corresponding range in an id chain that should be re-rendered by webpack.
- * Only those in the chain that are actually referring to namespaces or imports should be re-rendered.
- * Deeper member accessors on the imported object should not be re-rendered. If deeper member accessors are re-rendered,
- * there is a potential loss of meaning with rendering a quoted accessor as an unquoted accessor, or vice versa,
- * because minifiers treat quoted accessors differently. e.g. import { a } from "./module"; a["b"] vs a.b
- * @param {string[]} untrimmedIds chained ids
- * @param {Range} untrimmedRange range encompassing allIds
- * @param {Range[] | undefined} ranges cumulative range of ids for each of allIds
- * @param {ModuleGraph} moduleGraph moduleGraph
- * @param {Dependency} dependency dependency
- * @returns {{trimmedIds: string[], trimmedRange: Range}} computed trimmed ids and cumulative range of those ids
- */
-module.exports.getTrimmedIdsAndRange = (
- untrimmedIds,
- untrimmedRange,
- ranges,
- moduleGraph,
- dependency
-) => {
- let trimmedIds = trimIdsToThoseImported(
- untrimmedIds,
- moduleGraph,
- dependency
- );
- let trimmedRange = untrimmedRange;
- if (trimmedIds.length !== untrimmedIds.length) {
- // The array returned from dep.idRanges is right-aligned with the array returned from dep.names.
- // Meaning, the two arrays may not always have the same number of elements, but the last element of
- // dep.idRanges corresponds to [the expression fragment to the left of] the last element of dep.names.
- // Use this to find the correct replacement range based on the number of ids that were trimmed.
- const idx =
- ranges === undefined
- ? -1 /* trigger failure case below */
- : ranges.length + (trimmedIds.length - untrimmedIds.length);
- if (idx < 0 || idx >= /** @type {Range[]} */ (ranges).length) {
- // cspell:ignore minifiers
- // Should not happen but we can't throw an error here because of backward compatibility with
- // external plugins in wp5. Instead, we just disable trimming for now. This may break some minifiers.
- trimmedIds = untrimmedIds;
- // TODO webpack 6 remove the "trimmedIds = ids" above and uncomment the following line instead.
- // throw new Error("Missing range starts data for id replacement trimming.");
- } else {
- trimmedRange = /** @type {Range[]} */ (ranges)[idx];
- }
- }
-
- return { trimmedIds, trimmedRange };
-};
-
-/**
- * @summary Determine which IDs in the id chain are actually referring to namespaces or imports,
- * and which are deeper member accessors on the imported object.
- * @param {string[]} ids untrimmed ids
- * @param {ModuleGraph} moduleGraph moduleGraph
- * @param {Dependency} dependency dependency
- * @returns {string[]} trimmed ids
- */
-function trimIdsToThoseImported(ids, moduleGraph, dependency) {
- /** @type {string[]} */
- let trimmedIds = [];
- let currentExportsInfo = moduleGraph.getExportsInfo(
- /** @type {Module} */ (moduleGraph.getModule(dependency))
- );
- for (let i = 0; i < ids.length; i++) {
- if (i === 0 && ids[i] === "default") {
- continue; // ExportInfo for the next level under default is still at the root ExportsInfo, so don't advance currentExportsInfo
- }
- const exportInfo = currentExportsInfo.getExportInfo(ids[i]);
- if (exportInfo.provided === false) {
- // json imports have nested ExportInfo for elements that things that are not actually exported, so check .provided
- trimmedIds = ids.slice(0, i);
- break;
- }
- const nestedInfo = exportInfo.getNestedExportsInfo();
- if (!nestedInfo) {
- // once all nested exports are traversed, the next item is the actual import so stop there
- trimmedIds = ids.slice(0, i + 1);
- break;
- }
- currentExportsInfo = nestedInfo;
- }
- // Never trim to nothing. This can happen for invalid imports (e.g. import { notThere } from "./module", or import { anything } from "./missingModule")
- return trimmedIds.length ? trimmedIds : ids;
-}