source: trip-planner-front/node_modules/webpack-sources/lib/PrefixSource.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3 Author Tobias Koppers @sokra
4*/
5"use strict";
6
7var Source = require("./Source");
8var SourceNode = require("source-map").SourceNode;
9
10var REPLACE_REGEX = /\n(?=.|\s)/g;
11
12function cloneAndPrefix(node, prefix, append) {
13 if(typeof node === "string") {
14 var result = node.replace(REPLACE_REGEX, "\n" + prefix);
15 if(append.length > 0) result = append.pop() + result;
16 if(/\n$/.test(node)) append.push(prefix);
17 return result;
18 } else {
19 var newNode = new SourceNode(
20 node.line,
21 node.column,
22 node.source,
23 node.children.map(function(node) {
24 return cloneAndPrefix(node, prefix, append);
25 }),
26 node.name
27 );
28 newNode.sourceContents = node.sourceContents;
29 return newNode;
30 }
31};
32
33class PrefixSource extends Source {
34 constructor(prefix, source) {
35 super();
36 this._source = source;
37 this._prefix = prefix;
38 }
39
40 source() {
41 var node = typeof this._source === "string" ? this._source : this._source.source();
42 var prefix = this._prefix;
43 return prefix + node.replace(REPLACE_REGEX, "\n" + prefix);
44 }
45
46 node(options) {
47 var node = this._source.node(options);
48 var prefix = this._prefix;
49 var output = [];
50 var result = new SourceNode();
51 node.walkSourceContents(function(source, content) {
52 result.setSourceContent(source, content);
53 });
54 var needPrefix = true;
55 node.walk(function(chunk, mapping) {
56 var parts = chunk.split(/(\n)/);
57 for(var i = 0; i < parts.length; i += 2) {
58 var nl = i + 1 < parts.length;
59 var part = parts[i] + (nl ? "\n" : "");
60 if(part) {
61 if(needPrefix) {
62 output.push(prefix);
63 }
64 output.push(new SourceNode(mapping.line, mapping.column, mapping.source, part, mapping.name));
65 needPrefix = nl;
66 }
67 }
68 });
69 result.add(output);
70 return result;
71 }
72
73 listMap(options) {
74 var prefix = this._prefix;
75 var map = this._source.listMap(options);
76 return map.mapGeneratedCode(function(code) {
77 return prefix + code.replace(REPLACE_REGEX, "\n" + prefix);
78 });
79 }
80
81 updateHash(hash) {
82 if(typeof this._source === "string")
83 hash.update(this._source);
84 else
85 this._source.updateHash(hash);
86 if(typeof this._prefix === "string")
87 hash.update(this._prefix);
88 else
89 this._prefix.updateHash(hash);
90 }
91}
92
93require("./SourceAndMapMixin")(PrefixSource.prototype);
94
95module.exports = PrefixSource;
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