source: frontend/node_modules/webpack-sources/lib/helpers/getFromStreamChunks.js

Last change on this file was 9af201e, checked in by MBK <marija.karapandzova@…>, 12 days ago

Fix frontend appearance
  • Property mode set to 100644
File size: 4.4 KB
Line 
1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3 Author Tobias Koppers @sokra
4*/
5
6"use strict";
7
8const createMappingsSerializer = require("./createMappingsSerializer");
9
10/** @typedef {import("../Source").RawSourceMap} RawSourceMap */
11/** @typedef {import("../Source").SourceAndMap} SourceAndMap */
12/** @typedef {import("./streamChunks").Options} Options */
13/** @typedef {import("./streamChunks").StreamChunksFunction} StreamChunksFunction */
14
15/** @typedef {{ streamChunks: StreamChunksFunction }} SourceLikeWithStreamChunks */
16
17/**
18 * @param {SourceLikeWithStreamChunks} source source
19 * @param {Options=} options options
20 * @returns {RawSourceMap | null} map
21 */
22module.exports.getMap = (source, options) => {
23 let mappings = "";
24 /** @type {(string | null)[]} */
25 const potentialSources = [];
26 /** @type {(string | null)[]} */
27 const potentialSourcesContent = [];
28 /** @type {(string | null)[]} */
29 const potentialNames = [];
30 const addMapping = createMappingsSerializer(options);
31 source.streamChunks(
32 { ...options, source: false, finalSource: true },
33 (
34 chunk,
35 generatedLine,
36 generatedColumn,
37 sourceIndex,
38 originalLine,
39 originalColumn,
40 nameIndex,
41 ) => {
42 mappings += addMapping(
43 generatedLine,
44 generatedColumn,
45 sourceIndex,
46 originalLine,
47 originalColumn,
48 nameIndex,
49 );
50 },
51 (sourceIndex, source, sourceContent) => {
52 while (potentialSources.length < sourceIndex) {
53 potentialSources.push(null);
54 }
55 potentialSources[sourceIndex] = source;
56 if (sourceContent !== undefined) {
57 while (potentialSourcesContent.length < sourceIndex) {
58 potentialSourcesContent.push(null);
59 }
60 potentialSourcesContent[sourceIndex] = sourceContent;
61 }
62 },
63 (nameIndex, name) => {
64 while (potentialNames.length < nameIndex) {
65 potentialNames.push(null);
66 }
67 potentialNames[nameIndex] = name;
68 },
69 );
70 return mappings.length > 0
71 ? {
72 version: 3,
73 file: "x",
74 mappings,
75 // We handle broken sources as `null`, in spec this field should be string, but no information what we should do in such cases if we change type it will be breaking change
76 sources: /** @type {string[]} */ (potentialSources),
77 sourcesContent:
78 potentialSourcesContent.length > 0
79 ? /** @type {string[]} */ (potentialSourcesContent)
80 : undefined,
81 names: /** @type {string[]} */ (potentialNames),
82 }
83 : null;
84};
85
86/**
87 * @param {SourceLikeWithStreamChunks} inputSource input source
88 * @param {Options=} options options
89 * @returns {SourceAndMap} map
90 */
91module.exports.getSourceAndMap = (inputSource, options) => {
92 let code = "";
93 let mappings = "";
94 /** @type {(string | null)[]} */
95 const potentialSources = [];
96 /** @type {(string | null)[]} */
97 const potentialSourcesContent = [];
98 /** @type {(string | null)[]} */
99 const potentialNames = [];
100 const addMapping = createMappingsSerializer(options);
101 const { source } = inputSource.streamChunks(
102 { ...options, finalSource: true },
103 (
104 chunk,
105 generatedLine,
106 generatedColumn,
107 sourceIndex,
108 originalLine,
109 originalColumn,
110 nameIndex,
111 ) => {
112 if (chunk !== undefined) code += chunk;
113 mappings += addMapping(
114 generatedLine,
115 generatedColumn,
116 sourceIndex,
117 originalLine,
118 originalColumn,
119 nameIndex,
120 );
121 },
122 (sourceIndex, source, sourceContent) => {
123 while (potentialSources.length < sourceIndex) {
124 potentialSources.push(null);
125 }
126 potentialSources[sourceIndex] = source;
127 if (sourceContent !== undefined) {
128 while (potentialSourcesContent.length < sourceIndex) {
129 potentialSourcesContent.push(null);
130 }
131 potentialSourcesContent[sourceIndex] = sourceContent;
132 }
133 },
134 (nameIndex, name) => {
135 while (potentialNames.length < nameIndex) {
136 potentialNames.push(null);
137 }
138 potentialNames[nameIndex] = name;
139 },
140 );
141 return {
142 source: source !== undefined ? source : code,
143 map:
144 mappings.length > 0
145 ? {
146 version: 3,
147 file: "x",
148 mappings,
149 // We handle broken sources as `null`, in spec this field should be string, but no information what we should do in such cases if we change type it will be breaking change
150 sources: /** @type {string[]} */ (potentialSources),
151 sourcesContent:
152 potentialSourcesContent.length > 0
153 ? /** @type {string[]} */ (potentialSourcesContent)
154 : undefined,
155 names: /** @type {string[]} */ (potentialNames),
156 }
157 : null,
158 };
159};
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