mirror of https://github.com/webpack/webpack.git
55 lines
1.4 KiB
JavaScript
55 lines
1.4 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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*/
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"use strict";
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const RuntimeGlobals = require("../RuntimeGlobals");
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const Template = require("../Template");
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const HelperRuntimeModule = require("./HelperRuntimeModule");
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class TrustedTypesRuntimeModule extends HelperRuntimeModule {
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constructor() {
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super("trusted types");
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}
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/**
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* @returns {string} runtime code
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*/
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generate() {
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const { compilation } = this;
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const { runtimeTemplate, outputOptions } = compilation;
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const { trustedTypesPolicyName } = outputOptions;
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const fn = RuntimeGlobals.getTrustedTypesPolicy;
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return Template.asString([
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"var rules = {",
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Template.indent([
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"createScriptURL: function(input) {",
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Template.indent("return input;"),
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"}"
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]),
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"}",
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"var trustedTypesPolicy;",
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`${fn} = ${runtimeTemplate.basicFunction("", [
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"// Create trusted type policy if trusted types are enabled in global object and the policy doesn't exist yet.",
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"if (trustedTypesPolicy === undefined && typeof trustedTypes !== 'undefined' && trustedTypes.createPolicy) {",
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Template.indent([
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`trustedTypesPolicy = trustedTypes.createPolicy(${JSON.stringify(
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trustedTypesPolicyName
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)}, rules)`
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]),
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"}",
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"",
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"if (trustedTypesPolicy) {",
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Template.indent("return trustedTypesPolicy"),
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"} else {",
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Template.indent("return rules"),
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"}"
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])};`
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]);
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}
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}
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module.exports = TrustedTypesRuntimeModule;
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