:测试提交“

qx

2025-08-06 fe97f78b9a343ee9fa45a3531d03d73dcd1df31b

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
const createMappingsSerializer = require("./createMappingsSerializer");
 
/** @typedef {import("../Source").RawSourceMap} RawSourceMap */
/** @typedef {import("../Source").SourceAndMap} SourceAndMap */
/** @typedef {import("./streamChunks").Options} Options */
/** @typedef {import("./streamChunks").StreamChunksFunction} StreamChunksFunction */
 
/** @typedef {{ streamChunks: StreamChunksFunction }} SourceLikeWithStreamChunks */
 
/**
 * @param {SourceLikeWithStreamChunks} inputSource input source
 * @param {Options=} options options
 * @returns {SourceAndMap} map
 */
module.exports.getSourceAndMap = (inputSource, options) => {
    let code = "";
    let mappings = "";
    /** @type {(string | null)[]} */
    const potentialSources = [];
    /** @type {(string | null)[]} */
    const potentialSourcesContent = [];
    /** @type {(string | null)[]} */
    const potentialNames = [];
    const addMapping = createMappingsSerializer(options);
    const { source } = inputSource.streamChunks(
        { ...options, finalSource: true },
        (
            chunk,
            generatedLine,
            generatedColumn,
            sourceIndex,
            originalLine,
            originalColumn,
            nameIndex,
        ) => {
            if (chunk !== undefined) code += chunk;
            mappings += addMapping(
                generatedLine,
                generatedColumn,
                sourceIndex,
                originalLine,
                originalColumn,
                nameIndex,
            );
        },
        (sourceIndex, source, sourceContent) => {
            while (potentialSources.length < sourceIndex) {
                potentialSources.push(null);
            }
            potentialSources[sourceIndex] = source;
            if (sourceContent !== undefined) {
                while (potentialSourcesContent.length < sourceIndex) {
                    potentialSourcesContent.push(null);
                }
                potentialSourcesContent[sourceIndex] = sourceContent;
            }
        },
        (nameIndex, name) => {
            while (potentialNames.length < nameIndex) {
                potentialNames.push(null);
            }
            potentialNames[nameIndex] = name;
        },
    );
    return {
        source: source !== undefined ? source : code,
        map:
            mappings.length > 0
                ? {
                        version: 3,
                        file: "x",
                        mappings,
                        // 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
                        sources: /** @type {string[]} */ (potentialSources),
                        sourcesContent:
                            potentialSourcesContent.length > 0
                                ? /** @type {string[]} */ (potentialSourcesContent)
                                : undefined,
                        names: /** @type {string[]} */ (potentialNames),
                    }
                : null,
    };
};
 
/**
 * @param {SourceLikeWithStreamChunks} source source
 * @param {Options=} options options
 * @returns {RawSourceMap | null} map
 */
module.exports.getMap = (source, options) => {
    let mappings = "";
    /** @type {(string | null)[]} */
    const potentialSources = [];
    /** @type {(string | null)[]} */
    const potentialSourcesContent = [];
    /** @type {(string | null)[]} */
    const potentialNames = [];
    const addMapping = createMappingsSerializer(options);
    source.streamChunks(
        { ...options, source: false, finalSource: true },
        (
            chunk,
            generatedLine,
            generatedColumn,
            sourceIndex,
            originalLine,
            originalColumn,
            nameIndex,
        ) => {
            mappings += addMapping(
                generatedLine,
                generatedColumn,
                sourceIndex,
                originalLine,
                originalColumn,
                nameIndex,
            );
        },
        (sourceIndex, source, sourceContent) => {
            while (potentialSources.length < sourceIndex) {
                potentialSources.push(null);
            }
            potentialSources[sourceIndex] = source;
            if (sourceContent !== undefined) {
                while (potentialSourcesContent.length < sourceIndex) {
                    potentialSourcesContent.push(null);
                }
                potentialSourcesContent[sourceIndex] = sourceContent;
            }
        },
        (nameIndex, name) => {
            while (potentialNames.length < nameIndex) {
                potentialNames.push(null);
            }
            potentialNames[nameIndex] = name;
        },
    );
    return mappings.length > 0
        ? {
                version: 3,
                file: "x",
                mappings,
                // 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
                sources: /** @type {string[]} */ (potentialSources),
                sourcesContent:
                    potentialSourcesContent.length > 0
                        ? /** @type {string[]} */ (potentialSourcesContent)
                        : undefined,
                names: /** @type {string[]} */ (potentialNames),
            }
        : null;
};