source: trip-planner-front/node_modules/webpack/lib/ConditionalInitFragment.js@ ceaed42

Last change on this file since ceaed42 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3 Author Tobias Koppers @sokra
4*/
5
6"use strict";
7
8const { ConcatSource, PrefixSource } = require("webpack-sources");
9const InitFragment = require("./InitFragment");
10const Template = require("./Template");
11const { mergeRuntime } = require("./util/runtime");
12
13/** @typedef {import("webpack-sources").Source} Source */
14/** @typedef {import("./Generator").GenerateContext} GenerateContext */
15/** @typedef {import("./util/runtime").RuntimeSpec} RuntimeSpec */
16
17const wrapInCondition = (condition, source) => {
18 if (typeof source === "string") {
19 return Template.asString([
20 `if (${condition}) {`,
21 Template.indent(source),
22 "}",
23 ""
24 ]);
25 } else {
26 return new ConcatSource(
27 `if (${condition}) {\n`,
28 new PrefixSource("\t", source),
29 "}\n"
30 );
31 }
32};
33
34/**
35 * @typedef {GenerateContext} Context
36 */
37class ConditionalInitFragment extends InitFragment {
38 /**
39 * @param {string|Source} content the source code that will be included as initialization code
40 * @param {number} stage category of initialization code (contribute to order)
41 * @param {number} position position in the category (contribute to order)
42 * @param {string} key unique key to avoid emitting the same initialization code twice
43 * @param {RuntimeSpec | boolean} runtimeCondition in which runtime this fragment should be executed
44 * @param {string|Source=} endContent the source code that will be included at the end of the module
45 */
46 constructor(
47 content,
48 stage,
49 position,
50 key,
51 runtimeCondition = true,
52 endContent
53 ) {
54 super(content, stage, position, key, endContent);
55 this.runtimeCondition = runtimeCondition;
56 }
57
58 /**
59 * @param {Context} context context
60 * @returns {string|Source} the source code that will be included as initialization code
61 */
62 getContent(context) {
63 if (this.runtimeCondition === false || !this.content) return "";
64 if (this.runtimeCondition === true) return this.content;
65 const expr = context.runtimeTemplate.runtimeConditionExpression({
66 chunkGraph: context.chunkGraph,
67 runtimeRequirements: context.runtimeRequirements,
68 runtime: context.runtime,
69 runtimeCondition: this.runtimeCondition
70 });
71 if (expr === "true") return this.content;
72 return wrapInCondition(expr, this.content);
73 }
74
75 /**
76 * @param {Context} context context
77 * @returns {string|Source=} the source code that will be included at the end of the module
78 */
79 getEndContent(context) {
80 if (this.runtimeCondition === false || !this.endContent) return "";
81 if (this.runtimeCondition === true) return this.endContent;
82 const expr = context.runtimeTemplate.runtimeConditionExpression({
83 chunkGraph: context.chunkGraph,
84 runtimeRequirements: context.runtimeRequirements,
85 runtime: context.runtime,
86 runtimeCondition: this.runtimeCondition
87 });
88 if (expr === "true") return this.endContent;
89 return wrapInCondition(expr, this.endContent);
90 }
91
92 merge(other) {
93 if (this.runtimeCondition === true) return this;
94 if (other.runtimeCondition === true) return other;
95 if (this.runtimeCondition === false) return other;
96 if (other.runtimeCondition === false) return this;
97 const runtimeCondition = mergeRuntime(
98 this.runtimeCondition,
99 other.runtimeCondition
100 );
101 return new ConditionalInitFragment(
102 this.content,
103 this.stage,
104 this.position,
105 this.key,
106 runtimeCondition,
107 this.endContent
108 );
109 }
110}
111
112module.exports = ConditionalInitFragment;
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