init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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
/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
const {
    JAVASCRIPT_MODULE_TYPE_AUTO,
    JAVASCRIPT_MODULE_TYPE_DYNAMIC,
    JAVASCRIPT_MODULE_TYPE_ESM
} = require("./ModuleTypeConstants");
const ConstDependency = require("./dependencies/ConstDependency");
const ExportsInfoDependency = require("./dependencies/ExportsInfoDependency");
 
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
 
const PLUGIN_NAME = "ExportsInfoApiPlugin";
 
class ExportsInfoApiPlugin {
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.compilation.tap(
            PLUGIN_NAME,
            (compilation, { normalModuleFactory }) => {
                compilation.dependencyTemplates.set(
                    ExportsInfoDependency,
                    new ExportsInfoDependency.Template()
                );
                /**
                 * @param {JavascriptParser} parser the parser
                 * @returns {void}
                 */
                const handler = parser => {
                    parser.hooks.expressionMemberChain
                        .for("__webpack_exports_info__")
                        .tap(PLUGIN_NAME, (expr, members) => {
                            const dep =
                                members.length >= 2
                                    ? new ExportsInfoDependency(
                                            expr.range,
                                            members.slice(0, -1),
                                            members[members.length - 1]
                                      )
                                    : new ExportsInfoDependency(expr.range, null, members[0]);
                            dep.loc = expr.loc;
                            parser.state.module.addDependency(dep);
                            return true;
                        });
                    parser.hooks.expression
                        .for("__webpack_exports_info__")
                        .tap(PLUGIN_NAME, expr => {
                            const dep = new ConstDependency("true", expr.range);
                            dep.loc = expr.loc;
                            parser.state.module.addPresentationalDependency(dep);
                            return true;
                        });
                };
                normalModuleFactory.hooks.parser
                    .for(JAVASCRIPT_MODULE_TYPE_AUTO)
                    .tap(PLUGIN_NAME, handler);
                normalModuleFactory.hooks.parser
                    .for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
                    .tap(PLUGIN_NAME, handler);
                normalModuleFactory.hooks.parser
                    .for(JAVASCRIPT_MODULE_TYPE_ESM)
                    .tap(PLUGIN_NAME, handler);
            }
        );
    }
}
 
module.exports = ExportsInfoApiPlugin;